YDOC ML-2013 User manual

DATA LOGGER MANUAL
Manufacturers of low power instruments page 1
Type ML-2013, ML-x15, WDL-x14
Low power 2G/3G data loggers
Title
:
User Manual ML-2013, ML-x15, WDL-x14
Date
:
Sep-2017
Version
:
FW 3.0B1

DATA LOGGER MANUAL
Manufacturers of low power instruments page 2
WARNING
THE FOLLOWING OPERATING INSTRUCTIONS ARE FOR USE BY QUALIFIED
PERSONNEL ONLY. TO AVOID DAMAGE OR MALFUNCTION, DO NOT PERFORM
ANY OPERATING OTHER THAN THAT CONTAINED IN THIS MANUAL. ANY
OPERATOR SHOULD BE SKILLED WITH A TECHNCAL BACKGROUND BEFORE
OPERATING THE DEVICE.
PREFACE
Congratulations!
With your purchase of an YDOC Low Power data logger with mobile network capabilities.
This manual describes the operation and (hardware) installation of the ML-2013/ML-x15/WDL-x14 data
logger.
The chapter Getting Started briefly describes the data logger, prepares you to install it, and tells you how
to put it into operation.
The Chapter Operating Basics covers basic principles of operation of the data logger. The operating
interface (menu) and the tutorial examples, rapidly help you to understand how your data logger operates.
The Chapter Reference teaches you how to perform specific tasks and provides a complete list of
operating tasks and useful background information.
The Appendices provide a list with all available options, and other useful information.
We recommend reading this manual carefully before installation of the data logger.
Warranty
All YDOC instruments are warranted for 3 years against defective materials and workmanship. Any
questions with respect to the warranty mentioned above should be taken up with your YDOC Distributor.

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Manufacturers of low power instruments page 3
Table of Contents
Product Description .................................................................................................................................... 10
Models and Editions................................................................................................................................ 11
ML-2013 .............................................................................................................................................. 11
ML-x15................................................................................................................................................. 12
WDL-x14.............................................................................................................................................. 14
Getting started............................................................................................................................................ 16
Vibration.................................................................................................................................................. 16
Do’s and Don’ts ................................................................................................................................... 16
Inserting the SIM-card............................................................................................................................. 16
Power on for the First time...................................................................................................................... 17
Connect to a PC...................................................................................................................................... 17
Operating Basics ........................................................................................................................................ 18
Configuration menu................................................................................................................................. 18
Reference ................................................................................................................................................... 25
Principle of Operation.............................................................................................................................. 25
Sample interval.................................................................................................................................... 25
Data logging interval............................................................................................................................ 25
Send Interval ....................................................................................................................................... 25
Send delay........................................................................................................................................... 25
Example............................................................................................................................................... 26
Parameters.............................................................................................................................................. 27
Name................................................................................................................................................... 27
Code.................................................................................................................................................... 27
Unit ...................................................................................................................................................... 27
Value factor ......................................................................................................................................... 27
Value offset.......................................................................................................................................... 27
Decimals.............................................................................................................................................. 27
Data log............................................................................................................................................... 27
Data transpond.................................................................................................................................... 28
Alarm message.................................................................................................................................... 28
Alarm log ............................................................................................................................................. 28
Alarm output........................................................................................................................................ 28
Alarm limits and delays ....................................................................................................................... 28
Configuration Menu Settings................................................................................................................... 29
Date & Time......................................................................................................................................... 29
System Information ............................................................................................................................. 29
Configuration Setup ................................................................................................................................ 30
General Settings ..................................................................................................................................... 31
Exit....................................................................................................................................................... 31
System Name...................................................................................................................................... 31
Datalog interval.................................................................................................................................... 31
Normal mode ................................................................................................................................... 31
Alarm mode...................................................................................................................................... 31
Timestamp round down....................................................................................................................... 31
Continuous Alarm Sampling................................................................................................................ 31
Alarm output port................................................................................................................................. 32
Deployment Date and Time................................................................................................................. 32
Daily operating time slot...................................................................................................................... 32
Time zone............................................................................................................................................ 32
Summer time....................................................................................................................................... 32
Modem Settings...................................................................................................................................... 33
Provider Selection ............................................................................................................................... 33
Access Point Name (APN) .................................................................................................................. 33
APN Authentication ............................................................................................................................. 33
Network signal test.............................................................................................................................. 33

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Manufacturers of low power instruments page 4
APN login test...................................................................................................................................... 34
NTP time update..................................................................................................................................... 34
Time Update........................................................................................................................................ 34
Update interval .................................................................................................................................... 34
Server.................................................................................................................................................. 34
NTP Port.............................................................................................................................................. 34
Time update test.................................................................................................................................. 34
Alarm messages ..................................................................................................................................... 34
System Alarm...................................................................................................................................... 34
Data Alarm........................................................................................................................................... 34
SMS Commands..................................................................................................................................... 35
ACVA SMS.......................................................................................................................................... 35
Internal Sensors...................................................................................................................................... 35
Name................................................................................................................................................... 35
Sample interval.................................................................................................................................... 35
Battery Capacity.................................................................................................................................. 35
Battery Replaced................................................................................................................................. 35
Rest Capacity...................................................................................................................................... 35
Rest power .......................................................................................................................................... 35
Casing Pressure (WDL-x14 only)........................................................................................................ 36
Casing Temperature (WDL-x14 only) ................................................................................................. 36
Processor Temperature....................................................................................................................... 36
Average Voltage.................................................................................................................................. 36
Max Voltage......................................................................................................................................... 36
Min Voltage.......................................................................................................................................... 36
Average, Max, Min current.................................................................................................................. 36
Operating cycle.................................................................................................................................... 36
Free disk space................................................................................................................................... 36
Analog sensors (mA/V)........................................................................................................................... 37
Sensor power switch ........................................................................................................................... 37
Sample interval.................................................................................................................................... 37
Port mode.......................................................................................................................................... 37
Parameter settings .............................................................................................................................. 37
Value at 0/4-20 mA or 0-10 V.............................................................................................................. 37
Determine linear conversion function (2 calibration points) ................................................................ 37
Determine linear offset only (1 calibration point)................................................................................. 37
Digital Sensors- pulse input .................................................................................................................... 38
Sample interval.................................................................................................................................... 38
Port mode............................................................................................................................................ 38
Pull up.............................................................................................................................................. 38
Pull down ......................................................................................................................................... 39
Register mode..................................................................................................................................... 39
Units per pulse, or pulses per unit....................................................................................................... 39
Register value...................................................................................................................................... 39
Register Reset..................................................................................................................................... 39
Log each counter change.................................................................................................................... 39
Counter................................................................................................................................................ 39
Quantity............................................................................................................................................... 39
Mean-, Max- and Min Rate.................................................................................................................. 39
Digital Sensors- Alarm input ................................................................................................................... 40
Trigger delay........................................................................................................................................ 40
Register value...................................................................................................................................... 40
Network Signal Sensor ........................................................................................................................... 41
Independent data log........................................................................................................................... 41
Signal bars........................................................................................................................................... 41
Signal dB/%/indication/bit error rate.................................................................................................... 41
Aggregation Channels ............................................................................................................................ 42

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Manufacturers of low power instruments page 5
Calculation Channels.............................................................................................................................. 43
Syntax.................................................................................................................................................. 43
Functions............................................................................................................................................. 43
Example 1............................................................................................................................................ 44
Example 2............................................................................................................................................ 44
Supported mathematical functions with one argument:...................................................................... 44
abs(x)............................................................................................................................................... 44
sqrt(x)............................................................................................................................................... 44
ln(x).................................................................................................................................................. 44
exp(x)............................................................................................................................................... 44
sin(radians)...................................................................................................................................... 45
cos(radians)..................................................................................................................................... 45
tan(radians)...................................................................................................................................... 45
asin(x).............................................................................................................................................. 45
acos(x)............................................................................................................................................. 45
atan(x).............................................................................................................................................. 45
torad(degrees) ................................................................................................................................. 45
todeg(radians).................................................................................................................................. 45
floor(x).............................................................................................................................................. 45
ceil(x) ............................................................................................................................................... 45
round(x)............................................................................................................................................ 45
Supported mathematical functions with multiple arguments:.............................................................. 45
atan2(x;y)......................................................................................................................................... 45
mod(x;y)........................................................................................................................................... 45
pow(x;y) ........................................................................................................................................... 45
clip(x;min;max)................................................................................................................................. 45
Supported comparisons with 2 arguments:......................................................................................... 46
lt(x;y) ................................................................................................................................................ 46
le(x;y)............................................................................................................................................... 46
gt(x;y)............................................................................................................................................... 46
ge(x;y).............................................................................................................................................. 46
Supported comparisons with 4 arguments:......................................................................................... 46
eq(x;y;q;p)........................................................................................................................................ 46
lt(x;y;q;p).......................................................................................................................................... 46
le(x;y;q;p)......................................................................................................................................... 46
gt(x;y;q;p)......................................................................................................................................... 46
ge(x;y;q;p)........................................................................................................................................ 46
Serial Port ............................................................................................................................................... 47
RS232.................................................................................................................................................. 47
Generic Modbus.................................................................................................................................. 47
Port Settings .................................................................................................................................... 47
Protocol type.................................................................................................................................... 47
Start command................................................................................................................................. 48
Ready status.................................................................................................................................... 48
Ready after ...................................................................................................................................... 48
Register type.................................................................................................................................... 48
Register Start address..................................................................................................................... 48
Data Type ........................................................................................................................................ 48
Timing.............................................................................................................................................. 48
Generic Serial...................................................................................................................................... 49
Log raw data String.......................................................................................................................... 49
Decimal symbol................................................................................................................................ 49
Separator Character ........................................................................................................................ 49
Start/Stop character......................................................................................................................... 49
Output request................................................................................................................................. 49
Parameters ...................................................................................................................................... 50
Sentence filter.................................................................................................................................. 50

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Field position.................................................................................................................................... 50
Field type ......................................................................................................................................... 50
Example:.......................................................................................................................................... 50
Generic NMEA..................................................................................................................................... 50
GPS ................................................................................................................................................. 51
RS485.................................................................................................................................................. 51
SDI-12 ................................................................................................................................................. 51
Measurement command.................................................................................................................. 51
Parameters ...................................................................................................................................... 51
Accessory port..................................................................................................................................... 52
Radio................................................................................................................................................... 52
......................................................................................................................................................... 52
Send interval.................................................................................................................................... 52
Send delay....................................................................................................................................... 52
Power down delay ........................................................................................................................... 52
Iridium Satellite.................................................................................................................................... 53
Iridium SBD Service......................................................................................................................... 53
Settings menu.................................................................................................................................. 54
Send interval.................................................................................................................................... 54
Data transpond ................................................................................................................................ 54
Backup mode................................................................................................................................... 54
Message format............................................................................................................................... 54
GPS..................................................................................................................................................... 55
Minimum satellites to use ................................................................................................................ 55
Time to fix ........................................................................................................................................ 55
Position drift alarming ...................................................................................................................... 55
Calculate alarm limits on deployment......................................................................................... 56
Latitude/Longitude hi/lo alarm drift ............................................................................................. 56
Satellites .......................................................................................................................................... 56
Latitude / Longitude ......................................................................................................................... 56
GPS Quality..................................................................................................................................... 56
Camera................................................................................................................................................ 57
Display................................................................................................................................................. 58
Power down delay ........................................................................................................................... 58
DTU Connection...................................................................................................................................... 59
Port Settings........................................................................................................................................ 60
Sensor Power Switch .......................................................................................................................... 60
Connect interval................................................................................................................................... 60
Connection Delay................................................................................................................................ 60
Server.................................................................................................................................................. 60
TCP Port.............................................................................................................................................. 60
Client ID............................................................................................................................................... 60
Termination ID..................................................................................................................................... 60
Terminal Request ID ........................................................................................................................... 60
Email output ............................................................................................................................................ 61
Server.................................................................................................................................................. 61
SMTP port ........................................................................................................................................... 61
Originator address............................................................................................................................... 61
Destination address............................................................................................................................. 61
Data format.......................................................................................................................................... 61
Remote configuration .......................................................................................................................... 61
FTP Output.............................................................................................................................................. 62
Server.................................................................................................................................................. 62
Port...................................................................................................................................................... 62
FTP mode............................................................................................................................................ 62
Security................................................................................................................................................ 62
Directory.............................................................................................................................................. 62

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Omit timestamp ................................................................................................................................... 62
Data format.......................................................................................................................................... 62
Remote configuration .......................................................................................................................... 63
HTTP Output........................................................................................................................................... 64
Server.................................................................................................................................................. 64
TCP port.............................................................................................................................................. 64
Security................................................................................................................................................ 64
Data format.......................................................................................................................................... 64
Remote configuration transfer and firmware upgrade......................................................................... 64
Remote configuration .......................................................................................................................... 65
MQTT Output.......................................................................................................................................... 66
Server.................................................................................................................................................. 66
Port...................................................................................................................................................... 66
Root topic ............................................................................................................................................ 66
Security................................................................................................................................................ 67
Data output.......................................................................................................................................... 67
Data format.......................................................................................................................................... 67
Remote configuration transfer and firmware upgrade......................................................................... 67
Remote configuration .......................................................................................................................... 68
TCP Output ............................................................................................................................................. 69
Server.................................................................................................................................................. 69
Port...................................................................................................................................................... 69
Security................................................................................................................................................ 69
Data format.......................................................................................................................................... 69
Satellite Output (SBD)............................................................................................................................. 69
Configuration Review.............................................................................................................................. 70
Parameter list ...................................................................................................................................... 70
Measurement list................................................................................................................................. 70
Alarm list.............................................................................................................................................. 71
Alarm limits.......................................................................................................................................... 71
Maintenance Menu.................................................................................................................................. 72
Field Testing........................................................................................................................................ 72
Verify Analog inputs......................................................................................................................... 72
Digital input test ............................................................................................................................... 72
SD card test..................................................................................................................................... 73
Battery test....................................................................................................................................... 73
Comport redirect.............................................................................................................................. 73
Data Download ................................................................................................................................ 74
Format SD Card............................................................................................................................... 74
Configuration Down/upload ............................................................................................................. 74
Firmware Upgrade........................................................................................................................... 75
Modem Maintenance ....................................................................................................................... 75
Bootloader Menu ............................................................................................................................. 75
SDI-12..................................................................................................................................................... 76
SDI-12 Hardware................................................................................................................................. 76
SDI-12 Wiring...................................................................................................................................... 76
SDI-12 Baud Rate and Frame Format ................................................................................................ 76
RS232 ..................................................................................................................................................... 77
RS485 ..................................................................................................................................................... 77
Analog Inputs (4..20mA) ......................................................................................................................... 79
Loop Powered Devices ....................................................................................................................... 79
Analog Inputs (0 .. 10 V)...................................................................................................................... 79
Analog Differential Inputs (ML-2013 only) .............................................................................................. 79
Differential input ports theory of operation .......................................................................................... 79
Common mode noise rejection............................................................................................................ 79
Using Load Cells With the ML-2013.................................................................................................... 80
Bridge of Wheatstone.......................................................................................................................... 80

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Excitation Output................................................................................................................................. 80
Analog Differential input 5 ................................................................................................................... 81
Analog Differential input 6 ................................................................................................................... 81
Calibration of Differential inputs .......................................................................................................... 81
Overall Calibration............................................................................................................................... 81
Potentiometer input (ML-x15 only).......................................................................................................... 82
Digital inputs............................................................................................................................................ 83
Pull up type.......................................................................................................................................... 83
Pull down type..................................................................................................................................... 83
Electrical specifications Digital inputs ................................................................................................. 83
Coil input ................................................................................................................................................. 83
Alarming.................................................................................................................................................. 84
Alarming - principal of operation.......................................................................................................... 84
Advanced Alarming ............................................................................................................................. 86
Firmware Upgrade .................................................................................................................................. 87
When to use Firmware upgrades ........................................................................................................ 87
Firmware upgrade procedure.............................................................................................................. 87
Firmware upgrade over the air............................................................................................................ 87
Firmware Driver limitations.................................................................................................................. 87
Power Switch Limitations .................................................................................................................... 88
Modem................................................................................................................................................. 88
Modem Firmware Upgrade.................................................................................................................. 88
SD-card................................................................................................................................................... 88
Inserting an SD-card ........................................................................................................................... 89
Native TXT Data Format......................................................................................................................... 89
Header:............................................................................................................................................ 89
Parameter Code: ............................................................................................................................. 89
Parameter Name: ............................................................................................................................ 89
Parameter Unit:................................................................................................................................ 89
D-Records ........................................................................................................................................... 90
Parameter Code: ............................................................................................................................. 90
Parameter value: ............................................................................................................................. 90
System records.................................................................................................................................... 90
Data Modifiers ..................................................................................................................................... 91
JSON Data Format.................................................................................................................................. 92
Compacted Data Format......................................................................................................................... 93
Records............................................................................................................................................... 94
First byte of record........................................................................................................................... 94
Number-bytes .................................................................................................................................. 94
Time-record...................................................................................................................................... 95
Value-record .................................................................................................................................... 95
Input-drivers ............................................................................................................................................ 96
Analog sensors.................................................................................................................................... 96
Digital Pulse Sensor............................................................................................................................ 97
Example configuration Rain Measurement...................................................................................... 97
Counter............................................................................................................................................ 98
Quantity............................................................................................................................................ 98
Rate ................................................................................................................................................. 99
Power supply......................................................................................................................................... 100
Internal RTC backup battery ............................................................................................................. 100
Power consumption & Battery Life.................................................................................................... 100
Pin configuration....................................................................................................................................... 101
ML-2013................................................................................................................................................ 101
ML-x15 .................................................................................................................................................. 102
WDL-x14............................................................................................................................................... 103
Pin descriptions..................................................................................................................................... 104
Analog Inputs..................................................................................................................................... 104

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Analog Input 1 to 4 (ML-2013) or 1 to 2 (ML-x15AD/ADS/TFT, WDL-x14AD).............................. 104
Analog Input 3 to 4 (ML-x15AD/ADS/TFT only) ............................................................................ 104
Analog Input 5 (ML-x15AD/ADS/TFT)........................................................................................... 104
Analog Input 5 to 8 (ML-2013 only) ............................................................................................... 104
RS485 A & B ..................................................................................................................................... 104
Power Switch..................................................................................................................................... 104
VBAT +.............................................................................................................................................. 104
RS232 RX & TX................................................................................................................................. 104
SDI-12 Hi........................................................................................................................................... 104
Digital inputs...................................................................................................................................... 105
+3V6.................................................................................................................................................. 105
Antenna placement and field strength............................................................................................... 105
Maintenance and Repair .......................................................................................................................... 106
RTC Lithium Battery replacement......................................................................................................... 106
Recalibration ......................................................................................................................................... 106
XRAY .................................................................................................................................................... 106
Safety........................................................................................................................................................ 107
Power supply......................................................................................................................................... 107
ESD....................................................................................................................................................... 107
Environment and disposal ........................................................................................................................ 108
Transport and Storage.............................................................................................................................. 109
Appendix................................................................................................................................................... 110
Specifications........................................................................................................................................ 110
CE Declarations of Conformity.............................................................................................................. 111
Supported serial sensor devices........................................................................................................... 114
Connection of a PT-1000 thermistor to the potentiometer-input........................................................... 114
Open Collector output........................................................................................................................... 117
Using a relay to drive an external load ..................................................................................... 117
Trouble shooting ................................................................................................................................... 118
System messages................................................................................................................................. 119

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Manufacturers of low power instruments page 10
Product Description
The data logger is designed to retrieve, and store data from various sensors. This data is logged onto the
embedded / removable SD-card. Also the stored data can be send from the data logger to any remote
computer you like. To use this feature, you need a valid SIM-card. Contact your local telecommunications
provider for more information on the SIM card you will need. The unit accepts various power sources,
selectable by the different version types. The user should connect his sensor(s) of preference to the
connector board of the device. Captured data can be stored, send, visualized and manipulated in many
ways.
The data logger is a small, ultra-low power, high-end data logger with built-in 2G/3G cellular-modem. This
small data logger, is further provided with an internal temperature sensor, 2 or 4 GB micro SD-card and
an SIM card slot. The logger can be powered by an internal 3.6 Volt Lithium battery that will last for years
when the logger is configured in a low-power mode.
Depending on model and edition a data logger can acquire physical signals by current loop inputs, voltage
inputs, resistance inputs and digital inputs. They can also be provided with RS232/RS485/SDI-12 port to
capture serial data (ASCII, MODBUS-RTU/ASCII, NMEA-0183, SDI-12) or to connect an accessory
(Camera, Display, GPS, Satellite modem).
External sensors can be powered by the data logger itself, to prevent them to consume power while the
data logger is a sleep. The excitation voltage is switched off during sleep as well.
Key features:
- A maximum sample rate of 4 Hz,
- Recording buffer up to 4 GB,
- Analog inputs (Except DS editions),
- Serial port(s) (Except AD editions),
- Digital input(s)
- Digital output
- Internal micro SD-card with standard FAT-32 File system for easy use with a PC,
- Easy configuration by menu items of embedded terminal application,
- Can be used with Windows XP, W7, W8 and W10
- Low power / long Battery life (see specification sheet),
- Embedded 2G/3G modem for remote operation,
- Alarming by SMS, e-Mail or MQTT
- Log data transfer by HTTP(S), e-Mail, FTP(S), secure TCP or MQTT
- Camera picture transfer by HTTP(S), e-Mail, FTP(S), secure TCP or MQTT
- Remote FW-upgrade & Configuration update by HTTP(S), secure TCP or MQTT
- Internal voltage convertor for supplying 12 VDC power to the connected sensor(s),
- Stable excitation voltage to power Wheatstone bridged sensors (ML-2013 only),
- Firmware upgrade over the air for adding new features to your device.
- Remote configuration over the air, for adjusting your configuration from remote.

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Manufacturers of low power instruments page 11
Models and Editions
ML-2013
The ML-2013 data logger is a small, ultra-low power, high-end data logger with built-in QUAD-band GPRS-
modem. This small data logger, is further provided with an internal temperature sensor, 4GB micro SD card
and an 2FF SIM card slot. The logger can be powered by an internal 3.6 Volt Lithium battery that will last
for years when the logger is configured in a low-power mode. It is also possible to power the data logger
using an optional integrated 3xAA NiMH solar panel.
The data logger can acquire physical signals by 4 current loop inputs, 4 digital inputs and 2 hires amplified
differential voltage inputs, which can be used to connect pyranometers or in combination with a stable
excitation voltage to connect “Wheatstone resistive bridge sensors” like load cells. The data logger is
provided with generic serial port drivers to capture measurements from ASCII, MODBUS, NMEA or SDI-12
transponders, custom drivers can be developed on request. External sensors/transponders can be powered
by the data logger itself, to prevent them to consume power while the data logger is a sleep. The excitation
voltage is switched off during sleep as well. Up to 8 mathematical channels are available to calculate
meaningful engineering values derived from sensed values (e.g. a polynomial to calculate a flow from a
stream level).
SKU
Description
ML-2013
Powered from a 3.6V DC SAFT LSH20 or equivalent D-size lithium battery.
ML-2013-DC
With integrated 3 x AA NiMH charger powered from external 8..30V DC source.
ML-2013-PV
With integrated 3 x AA NiMH charger powered from 1Wp integrated solar panel.
ML-2013-TFT
Like ML-2013-DC but with TFT display integrated in cover.
The data logger will be supplied without pre-mounted cable glands, giving the user the freedom to choose
the number and size of the glands them self to avoid unnecessary points of risk for moisture penetration.
We recommend removing the PCB before drilling.
1) Analog inputs
2) RS232 connector
3) Excitation DC/DC convertor
4) Digital inputs
5) SDI-12, power switch and
Excitation connector
6) RS485 connector
7) Power switch DC/DC convertor
8) RTC clock battery
9) Power supply connector (to cover)
10) Fuse
11) Processor
12) Antenna Connector
13) Quad Band Modem
14) USB Connector
15) SIM (2FF) & SD-card Holder.

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Manufacturers of low power instruments page 12
ML-x15
The ML-x15 data logger is a small, ultra-low power, cost effective data logger with built-in cellular modem
available for the EMEA, APAC and NA regions. This small data logger, is further provided with an internal
temperature sensor, 4GB micro SD card and an 2FF SIM card slot. The logger can be powered by an
internal 3.6 Volt Lithium battery that will last for years when the logger is configured in a low-power mode.
It is also possible to power the data logger using an optional integrated 3xAA NiMH PV-panel or 8..30V
external DC source.
The data logger can acquire physical signals by 2 current loop inputs, 3 voltage inputs (1 potentiometer
input) and 3 digital inputs. The data logger is provided with one serial port to capture measurements from
ASCII, MODBUS, NMEA or SDI-12 compatible sensors. External sensors can be powered by the data
logger itself, to prevent them to consume power while the data logger is a sleep. Up to 8 mathematical
channels are available to calculate meaningful engineering values derived from sensor input values (e.g.
a polynomial to calculate a flow from a stream level).
SKU Table ML-x15
SKU format:
ML-x15y-z (x=Modem, y=Edition, z=Power supply)
Modem
Description
ML-215y-z
With built in 2G cellular modem (Quad band GPRS)
ML-315y-z
With built in 3G cellular modem (900/2100MHz UMTS/HSPA, EMEA/APAC)
ML-N315y-z
With built in 3G cellular modem (850/1900Mhz UMTS/HSPA, North America)
Edition
Description
Remarks
ML-x15TFT-z
With 5 analog & 3 digital inputs, serial port & TFT-display cover on accessory port.
ML-x15ADS-z
With 5 analog & 3 digital inputs, serial & accessory port.
ML-x15AD-z
With 5 analog & 3 digital inputs (no serial port, no accessory port).
ML-x15DS-z
With 3 digital inputs & serial port (no analog inputs, no accessory port).
Power supply
Description
ML-x15y-LI
Powered from a single 3.6V DC SAFT LSH20 or equivalent D-size lithium battery.
ML-x15y-3LI
Powered from 3x 3.6V DC SAFT LSH20 or equivalent D-size lithium batteries.
ML-x15y-DC
With integrated 3 x AA NiMH charger powered from external 8..30V DC source.
ML-x15y-PV
With integrated 3 x AA NiMH charger powered from 1Wp integrated solar panel.
Example: ML-315ADS-PV is a data logger with built in 900/2100MHz 3G modem with PV-cover, digital &
analog inputs, a serial and accessory port.
The data logger will be supplied without pre-mounted cable glands, giving the user the freedom to choose
the number and size of the glands them self to avoid unnecessary points of risk for moisture penetration.
We recommend removing the PCB before drilling.

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Manufacturers of low power instruments page 13
1) Analog inputs
2) RS232/RS-485/SDI-12 connector
3) Digital inputs
4) 12V Power switch and alarm output
5) Accessory port (TFT, CAM, BT4.0, etc.)
6) Cellular MODEM
7) Internal/External antenna selection jumper
8) U.FL connector for external antenna
9) Internal antenna
10) Connector for optional external waterproof USB connector
11) Internal USB connector
12) Processor
13) SIM (2FF) & SD-card Holder
14) Fuse
15) 3V6 power supply connector (to PV or DC cover)
16) D-Size 3.7V Lithium battery holder (ML-x15y-LI only)
17) RTC clock battery.

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Manufacturers of low power instruments page 14
WDL-x14
The WDL-x14 is a small, battery powered, cost effective data logger with built-in cellular modem available
for the EMEA, APAC and NA regions. The IP68 rated well data logger enclosure is slim enough to fit a 2"
borehole and is designed to fit a www.prohydroinc.com lockable well cap. This well data logger, is further
provided with a 4GB micro SD-card and an 2FF SIM-card slot. The borehole logger is powered by an
internal 3.6 Volt Lithium battery (SAFT LSH20-CNR or equivalent only) that will last for years when the
data logger is configured in a low power mode. The battery can be replaced by detaching the top cap, no
need to remove the well data logger and sensor from the borehole.
External sensors can be powered by the data logger itself, to prevent them to consume power while the
data logger is a sleep. The data logger is provided with an IP68 rated venting plug, integrated
temperature and barometric sensor that can be used for compensating the readings of low cost absolute
pressure level sensors. Make sure that the well cap and borehole is vented as well.
SKU Table WDL-x14
SKU format:
WDL-x14y-z (x=Modem, y=Edition, z=Power supply)
Modem
Description
WDL-215y-z
With built in 2G cellular modem (Quad band GPRS)
WDL-315y-z
With built in 3G cellular modem (900/2100MHz UMTS/HSPA, EMEA/APAC)
WDL-N315y-z
With built in 3G cellular modem (850/1900Mhz UMTS/HSPA, North America)
Edition
Description
Remarks
WDL-x14AD-z
With 1 digital & 4 analog inputs (no serial port).
WDL-x14DS-z
With 1 digital input & serial port (no analog inputs).
Power supply
Description
WDL-x14y-LI
Powered from a 3.6V DC SAFT LSH20-CNR or equivalent D-size lithium battery.
Example: WDL-314AD-LI is a well data logger with built in 900/2100MHz 3G modem with 1 digital & 4
analog inputs.

DATA LOGGER MANUAL
Manufacturers of low power instruments page 15
1) Waterproof 7-pole female Hirschmann connector (see chapter: Pin configuration)
2) Rubber O-ring (30x3mm NBR SHa 70)
3) RTC clock battery
4) SIM (2FF) & SD-card Holder
5a) Magnetic activated deployment suspension switch.
5b) Marker to put magnetic tape for suspending deployment (e.g. during transport)
6) Rubber O-ring (41x3.5mm NBR SHa 70)
7) SAFT LSH20-CNR 3.7V D-Size Lithium battery
8) 3V6 power supply connector (Max 3.7V!)
9) UFL connector (antenna cable to main pcb)
10) Flex cable connector (power and data signals to main pcb)
11) Fuse
12) Internal antenna
13) Internal USB connector (for local configuration)
14) Open collector alarm output solder pad.
15) IP68 venting plug

DATA LOGGER MANUAL
Manufacturers of low power instruments page 16
Getting started
Vibration
At all times the data logger must be protected against vibrations. These vibrations can harm the
performance of the data logger. Especially the real time clock can be harmed by long-lasting vibrations
Do’s and Don’ts
Do’s
- Always provide a dry and clean environment when you open the case of a data logger,
- When you open the case, use a Philips screwdriver of 2mm for loosening the screws,
- Protect the data logger against mechanical stress and vibrations
Don’ts
- Don’t try to use a plain screwdriver for loosening the screws, you will damage the screws,
- Avoid touching the PCB directly.
Inserting the SIM-card
The wireless data functions will only work when an activated SIM, with a valid subscription is placed in the
data logger. In the menu the configuration and network settings must also match to those supplied by the
SIM card provider. The pin code of the SIM card must be removed prior to insertion in the data logger. To
prevent problems with the SIM card it can be inserted in a mobile phone or 2G/3G data modem. In a Mobile
phone or 2G/3G modem the 2G/3G, SMS and GSM data functionality can be tested.
When you have obtained a 2FF SIM-card, you can insert it into the SIM-card-holder.
Beware:
•Remove the PIN code (this can be done with the use of a mobile phone),
•Check the settings of your mobile provider,
•Check the settings for communicating via HTTP, FTP, E-mail or TCP,
•Check the capability of data communication for your service-provider,
•Make sure the SIM-card is installed correctly, and not upside down.
The Oblique side of the card should be visible. (see picture).
•Installation of the SIM card needs to be done in a clean and dry
environment.
•Avoid contact with the electronic parts around the SIM card.
•Remove power before changing or inserting a SIM card.
•The same applies to the SD-card.

DATA LOGGER MANUAL
Manufacturers of low power instruments page 17
ESD Attention: Although the data logger is designed to withstand certain amounts of electrostatic
discharge, it is advised to avoid discharged risks. Especially when the housing is open and the electronic
parts are exposed. Please do not touch the PCB if you don’t have to. It is strongly recommended to use an
earthed wrist-band when touching the PCB.
The data logger must be handled with care and never exposed to ESD discharges. When installing a sensor
or other wiring, make sure there is no power on both devices. ESD discharges could cause invisible
damage. This endangers long term stability and proper operation.
Power on for the First time
In the factory the data logger is programmed with the necessary system information. This information is
viewable in the menu. The data logger is ready to use out of the box if the preparations are checked.
•SIM card is inserted,
•SD-card is inserted,
•Internal battery, or mains power is connected
•Antenna is connected.
Next, connect your sensors, please consult your sensor’s manual for wiring.
Connect to a PC
OS compatibility: The data logger can be connected to any PC with USB 2.0 running on Microsoft
Windows XP, W7, W8 or W10. The USB virtual COM-port driver is installed when installing ‘YDOC-
terminal’. ‘YDOC-terminal’ can be downloaded from www.your-data-our-care.com

DATA LOGGER MANUAL
Manufacturers of low power instruments page 18
Operating Basics
Configuration menu
The data logger can be configured by means of terminal emulation software like ‘hyper terminal’. Our own
terminal emulation software ‘YDOC-terminal’ can be downloaded from www.your-data-our-care.com
The menu is comprehensive and easy to use. For each different sensor the same approach is used. Below,
one example is given to fully understand the operation of the menu. The example takes you through a
configuration from start to final stage. Only a few menu-items are used in this example, for a complete
overview of all menu-items, see chapter Reference. All menu items use the same approach which is
explained in this example. This example explains only the configuration of the firmware, NOT the wiring.
For wiring information see the reference.
Example:
Let’s Configure an ML-315ADS for operation with the following:
- Analog pressure transmitter 4 .. 20mA
- CT2X conductivity / temperature sensor (INW)
- FTP data output
- EMAIL data output
Connect the logger to a free USB port on your computer and open with a terminal emulator the virtual
COM-port (e.g. COM7) as assigned by Windows to the logger. The first time Windows will ask (if not
already installed) for an USB-driver, which can be installed by installing ‘YDOC-Terminal’.
When the terminal emulator has opened the COM-port, press:
<Ctrl>A<Shift>M<Ctrl>D to enter the configuration menu.
You’ll see a screen similar to this:
Running
Configuration Menu ML-315ADS Logger Version 2.1 Build 4
First we like to give this data
logger appropriate
identification codes.
So, press 3 <Configuration
Setup>
Configuration Menu ML-315 Logger Version 2.1 Build 4
[0] Run
[1] Date & time >> 2015/11/26 09:11:28
[2] System information >> 5159422
[3] Configuration setup >>
[4] Configuration review
[5] Maintenance
>

DATA LOGGER MANUAL
Manufacturers of low power instruments page 19
You’ll see this screen:
First Rename your Device by
Selecting option 1
(General Settings)
After selecting “General
Settings” the screen will look like this:
< General
settings>
1. Press 1 and enter the name of your preference
2. Choose your data logging interval. We used 10 minutes, and NO Alarming.
3. Enter the deployment date & time. This can be a time in the future when the logger should start
working. We will use the actual date & time to start right away.
4. Exit and save changes.
5. Now, the overall configuration is setup and we proceed with the configuration of the sensors and data
output.
General settings
[0] Exit
[1] System name >> YDOC
[2] Data log interval >> 00:10:00
[3] Timestamp round down >> 00:01:00
[4] Continuous alarm sampling >> Off
[5] Direct data output on data alarm >> Off
[6] Alarm output port >> Disabled
[7] Deployment date and time >> 2015/08/31 06:55:23
[8] Daily operating time slot >> 24 hour
[9] Time zone >> 0
[A] Summer time (daylight saving) >> Not used
>
Configuration setup
[0] Exit
[1] General settings >> YDOC
[2] Modem settings
[3] NTP time update >> Not used
[4] Alarm SMS >> Not used
[5] SMS commands >> Not used
[6] Internal sensors >> Internal
[7] Analog sensors >> Not used
[8] Digital sensors >> Not used
[9] Network signal sensor >> Not used
[A] Serial port >> Not used
[B] Accessory port >> Not used
[C] Calculated channels >> Used
[D] DTU connection >> Not used
[E] Email output >> Not used
[F] FTP output >> Not used
[G] TCP output >> Not used
[H] HTTP output >> Not used
>

DATA LOGGER MANUAL
Manufacturers of low power instruments page 20
Next type 7 for Analog sensors
Choose 1 for Port 1 (mA) and the next screen will appear:
Assign a name to the sensor (option 1: Name)
1. Set the power switch to enabled and enter the warm-up time. (the power switch will supply the sensor
with 12 Volts, and will be activated the time you specify, before a measurement is taken)
2. At default Set the sample interval to the ‘Data log interval’ so only one sample per data log interval
will be taken. You can set the sample interval to a specific value in case you want to record periodic
averages (e.g. a 10 minute wind direction, see chapter: Aggregation channels) or continues alarm
sampling.
3. Set the parameter name.
4. Set both minimum (option 6) and maximum (option 7) values of your sensor at 4mA and at 20mA. If
you don’t know those values you could determine the scaling by measuring two calibration points
(option 8). Those calibration points don’t have to be at the sensors absolute minimum and maximum,
but just two different points within the range of the sensor. (e.g. a measurement at 1m water level and
a measurement at 2m water level, while the sensors range is 0..10m)
5. If necessary option 9 can be used to perform an offset correction by measuring a single calibration
point.
6. Save and Exit
Analog sensors
[0] Exit
[1] Port 1 (mA) >> Analog1
[2] Port 2 (mA) >> Not used
[3] Port 3 (V) >> Not used
[4] Port 4 (V) >> Not used
[5] Potentiometer >> Potentio
[T] Analog input test >> Not done
>
Analog sensor
[0] Exit
[1] Name >> Analog1
[2] Sensor power switch >> Disabled
[3] Sample interval >> Data log interval
[4] Port mode >> Port 1; 4-20 mA
[5] Parameter settings >> Analog
[6] Parameter value at 4 mA >> 0 units
[7] Parameter value at 20 mA >> 100 units
[8] Determine linear conversion function (2 calibration points)
[9] Determine linear offset only (1 calibration point)
[R] Remove
>