HWM Multilog 2 WW Manual

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User Guide: Multilog 2 WW.
Installation and Setup.
Warning: This manual contains important safety and operating information.
Please read, understand, and follow the instructions in the manual
and also the safety / approvals document shipped with the device.
MAN-147-0004-B November 2022

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TABLE OF CONTENTS
1Introduction .......................................................................................................................4
1.1 Documentation and Support of Product .................................................................4
1.2 Safety Considerations................................................................................................5
1.3 Operating Temperature ............................................................................................5
2Overview and preparation for use...................................................................................6
2.1 Logger - Device Overview..........................................................................................6
2.2 Preparing a Laptop PC (or similar device) for use with loggers .............................7
2.3 Logger operation .......................................................................................................7
2.4 Server integration –storing and viewing data.........................................................9
2.4.1 DataGate Server / Data viewing portals ...........................................................9
2.5 Communicating with the logger .............................................................................10
2.5.1 Download of IDT (PC version)..........................................................................10
2.5.2 Connecting the comms cable ..........................................................................10
2.5.3 Loading Logger settings into IDT.....................................................................11
2.5.4 Activating the logger / Start recording of logged data ..................................12
2.5.5 Displaying logger device information / logging status ..................................12
3Setup and test of the Logger / using IDT.......................................................................13
4Interfaces and sensors supported.................................................................................14
4.1 Physical features / Identifying connector functions..............................................14
4.2 Supported Interfaces...............................................................................................15
4.3 Logger channel types and data interpretation......................................................16
4.4 Digital Pulse Input Interface....................................................................................16
4.4.1 Meter Pulse support.........................................................................................16
4.4.2 Digital Inputs.....................................................................................................16
4.5 SDI-12 Interface Support.........................................................................................17
4.6 Modbus Interface Support......................................................................................17
4.7 “Raven-Eye” compatible Interface Support............................................................17
4.8 SonicSens3 (Ultrasound distance / depth sensor) support..................................18
4.9 SonicSens2 (Ultrasound distance / depth sensor) support..................................18
4.10 Analogue voltage input support .............................................................................18
4.11 Analogue Current input (4 to 20 mA) support.......................................................18
5Installation .......................................................................................................................20
5.1 Summary of installation steps ................................................................................20

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5.2 Installing the logger .................................................................................................21
5.2.1 Verification of the configuration. ....................................................................22
5.2.2 External Battery ................................................................................................22
5.3 Installing the antenna and testing cellular communications ...............................22
6Connecting Sensors and other devices .........................................................................24
6.1 External Battery Pack...............................................................................................24
6.2 Flow (Meter Pulse) cable..........................................................................................24
6.3 Pressure Sensors .....................................................................................................25
6.3.1 Internal pressure sensors................................................................................25
6.3.2 External pressure sensors ...............................................................................26
7Viewing your data............................................................................................................28
8Troubleshooting ..............................................................................................................28
9Maintenance, Service and Repair...................................................................................29
9.1 Replaceable parts ....................................................................................................29
9.2 Return of product for Service or Repair.................................................................29
9.3 Putting the equipment into Shipping Mode ..........................................................30

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1INTRODUCTION
1.1 DOCUMENTATION AND SUPPORT OF PRODUCT
Thank you for choosing a HWM device. We trust it will provide you with many years of
service.
The “Multilog2WW” device is multi-purpose data logger that can be built and configured
to suit a specific application of the device; several versions are available within the
logger family. Please contact your sales representative for help with selection of the
appropriate model for your application.
This user-guide covers the following model families:
Model Number(s) Description
MP/*/*/* Multilog2WW logger.
This user-guide should be read in conjunction with relevant parts of the IDT (PC version)
user-guide. Refer to the IDT user-guide (MAN-130-0017) for additional or latest
information.
This user-guide provides details of the logger operation, how to install and setup the
product.
Note: The system periodically has new features and changes released, thus you may
observe slight changes from the diagrams and features shown in this manual.
In addition, the screen shots and menu descriptions used throughout this
manual refer to the specific functionality that was installed within the logger
samples used. This can vary from device to device, therefore always refer to
the on-screen menu to determine which features are available on your device.
HWM provides support of the logger devices by means of our customer support
webpages:
https://www.hwmglobal.com/help-and-downloads/
Should you have any questions that are not covered by this manual or the system’s
online help, please contact the HWM Technical Support team on [phone],
or email [e-mail]

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1.2 SAFETY CONSIDERATIONS
Safety Note:
Before continuing, carefully read and follow the information in the “Safety Warnings
and Approvals Information” document supplied with the product. This provides
general safety information.
Retain all documents for future reference.
Before using this product, make a risk assessment of the installation site and expected
work activity. Ensure suitable protective clothing is worn and working practises are
followed during installation and any maintenance.
WARNING: When this equipment is being used, installed, adjusted or serviced this
must be undertaken by suitably qualified personnel familiar with the
construction and operation of the equipment and the hazards of any
utility network.
1.3 OPERATING TEMPERATURE
Refer to the logger Datasheet or your sales representative for guidance on the storage
and operating temperature range of the device. Ensure the unit is within the operating
temperature range prior to installation.

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2OVERVIEW AND PREPARATION FOR USE
2.1 LOGGER -DEVICE OVERVIEW
The Multilog2WW logger
family is flexible in design
and can be built to suit a
variety of uses.
An example is shown
opposite.
Your logger may be different
to the one illustrated; several
models exist within the
Multilog2WW family.
The loggers are of a
waterproof construction and
have waterproof connectors
for attaching the sensors and antenna.
The connectors can exit the unit via
either the top or bottom of the case.
The logger includes 4 key-hole
shaped mounting lugs,
(spaced 300mm x 157mm apart).
The logger may be fixed to a wall using
flat-headed screws using the holes.
There are 3 additional holes passing
through both sides of the case; these
can be used for applications requiring
anti-tamper seals to be applied.
The top surface of the unit can be
identified using the shape of the
keyholes.
It can also be identified from one of
the labels on the front of the unit.
The connector locations are
identified as:
•T1, T2, T3, T4
(on the top surface) and
•B1, B2, B3, B4
(on the bottom surface).
They appear in the sequence shown on the label.
Mounting
holes
(4 available)
Locations
for applying
anti-tamper
seals
(3 available)
Top

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2.2 PREPARING A LAPTOP PC (OR SIMILAR DEVICE)FOR USE WITH LOGGERS
The logger devices require a user-interface in order to setup and test the unit. This is
provided by means of a HWM software tool which is to be installed onto a Personal
Computer (or similar device). The PC must have a USB port and Internet capability (for
occasional use).
The required software tool is “IDT” (PC version). This runs under the Microsoft Windows
operating system. To install IDT, follow the instructions within the IDT user-guide (see
also section 2.5.1).
The installer is required to be familiar with the use of IDT (PC version). Refer to the
relevant section of the IDT user-guide for guidance during setup of the Multilog2WW
logger.
2.3 LOGGER OPERATION
The logger is powered by a non-rechargeable Lithium battery. The software is designed
to minimise battery use and thereby prolong the expected battery life. However, battery
life is also affected by user-programable settings. The user is advised to set the logger to
keep tasks and sample frequencies to the minimum requirements of the intended use
in order to manage battery power effectively.
The unit can also operate from an (optional) additional external HWM
battery unit (see opposite); various battery sizes are available.
Where supplied, the external battery power is used to extend the
battery life of the system or for more frequent communications with the
host server.
The logger is normally shipped from the factory in an inactive state
(referred to as “shipping mode”) to preserve the life of the battery.
When activated (see section2.5.4), the logger will go into the state of “Recording” and
begin repetitive logging of the various sensors fitted to the unit, according to its
configuration and settings.
The logger can operate using two time periods, known as the “sample period” and also
the “log period”. It will sample the sensors at the sample rate to create temporary
measurement samples; this is a repetitive background task. After taking several
measurement samples, some statistical functions can be optionally applied to produce
a datapoint that is logged (saved) at the log rate; these form the recorded (logged)
measurements and are saved into an area of memory which is referred to as the
“primary recording”. The log period is always a multiple of the sample period.

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If the logger has the feature enabled, it can also be set to occasionally save additional
data into a “secondary recording” memory area, (e.g., data sampled at a higher
frequency).
Note: This is not available on all supplied units and must be arranged through your
sales representative before placing an order; it has implications concerning
expected battery life of the unit).
In addition, the logger will have daily tasks at set times, such as uploading its un-sent
data over the internet. When sending data, the logger waits to receive confirmation
from the server that the data was received without error; If confirmation is not received,
it will re-send the data at the next call-in time.
The logger can be programmed to monitor data for certain patterns or conditions and
can send a message if it should detect a match. Commonly, this is used for setting a
condition that can be an indication of an “alarm”. The message can be sent to either the
server (the usual destination) or another device.
An installer can also download a local copy of the data to a PC using the IDT software
tool. IDT can be used to inspect the data on-site, or it can also be used to forward data
to the server (e.g., If the logger has been unable to make recent contact with the server).
Refer to the IDT user-guide for details of its possible uses. The IDT user-guide also
provides an introduction to basic, general-purpose, logger operation; this may provide
further information.

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2.4 SERVER INTEGRATION –STORING AND VIEWING DATA
The logger includes an interface (referred to as a modem) that provides access to the
internet via the cellular mobile communications network. A SIM card is used to give
access of the network.
Measurement data is initially stored within the loggers, until the next call-in time. The
data can then be uploaded to the server using an encrypted format. Typically, the server
used to receive and store the data will be a HWM DataGate server, although other
servers may be used in conjunction with HWM software.
The logger data may be viewed using a viewing portal which has access to the data
stored on the server. (Refer to the relevant user guide for details of how your data
viewing can be used to view the logger data).
2.4.1 DataGate Server / Data viewing portals
When integrated with HWM’s DataGate server, the logger’s measurement data can be
stored centrally and made available to users via a viewing portal (website).
The data can be viewed remotely / graphically by anyone with a suitable user account
(and password) using a standard web-browser.
DataGate can also forward any alarms received from the unit to all users that have
subscribed to them; one logger alarm message can be distributed to multiple DataGate
users.
DataGate can also (by arrangement with your sales representative) be used to export
logger data to other servers.
Some administrative setup of the server and the viewing portal is normally required to
facilitate receiving, storing, and presenting logger data correctly. These topics are not
covered by this user guide.
Depending on the type of sensors used with the logger your data may be alternatively
viewed via a dedicated website which is designed to better present data from the
sensor. Refer to the sensor user-guide or IDT app user guide to see if this is appropriate
or discuss with your HWM representative regarding which viewing portal to use.
(For illustration purposes only)

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2.5 COMMUNICATING WITH THE LOGGER
To communicate with the logger, a PC is required, along with a HWM software utility
called “Installation and Diagnostic Tool”, or more commonly known as IDT (PC version).
Note: There is another version of IDT, the IDT (mobile app version).
The app version of IDT is not compatible with this logger device.
2.5.1 Download of IDT (PC version)
IDT (PC version) and its user-guide can be downloaded from the HWM Customer
Support website, or from the following webpage:
https://www.hwmglobal.com/idt-support/
Note: The user has to be registered by HWM and have a password to gain access).
Refer to the IDT User-guide for information on how to install and use the tool.
2.5.2 Connecting the comms cable
A communications cable is required to connect the logger to a USB port of a PC.
The interface for the communications cable
on Multilog2WW is normally positioned at
location “T2” and is shared with the connector
used for any external battery. (Normally a
cable with a 6-pin connector is required, but
certain models may use a 10-pin connector).
Where no external battery is connected, a straight cable is required. Attach the
communications cable to the Comms interface.
Where an external battery is fitted, it is advisable to use the ‘Y-cable’ version of the
programming cable, which is temporarily inserted between the battery and logger
Comms connector. Its use is recommended due to some sensors requiring additional
power that is provided by the external battery pack.
Plug the USB end of the programming cable into a standard USB port of a PC.
It is now possible to communicate with the logger using IDT.
(Contact your HWM representative to discuss any programming cable requirements).
Remember to re-connect any external battery when finished.

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2.5.3 Loading Logger settings into IDT
A progress bar will show across the top of the page. When completed, an information
box will appear stating ‘Device Read Success’. Click “OK” to clear the box.
The IDT-PC program has now read a copy of the unit’s program (settings) into the
“current program” memory area.
The settings can be changed within IDT but note that the unit itself is not updated with
any of the program changes unless the user later saves the settings
stored in IDT back into the logger by clicking on the ”Setup Device”
button.
Click ‘Read Device’.

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2.5.4 Activating the logger / Start recording of logged data
When Multilog2WW is shipped from the factory it is put into a “Shipping Mode” (see
section 9.3). This mode is designed to preserve its battery life whilst being shipped or in
long term storage; most functions of the logger are deactivated, but the unit will detect
communications from the IDT tool.
To use the logger, it must first be activated, which can usually be done
by saving the freshly read settings back into the device.
(i.e. Clicking on the Setup Device button).
Note: The above assumes start-up setting of the unit is set to “start logging
immediately”, but other options are possible; Refer to the IDT user-guide
for further information.
2.5.5 Displaying logger device information / logging status
After reading the logger’s programmed
settings, the current recording status of
the Logger panel in the setup tab.
Note: Ensure that prior to leaving an
installation site, the logger is in
a state of “Recording”, as shown.
The logger date and time should also be
the local time for wherever the logger is
installed. Confirm this is the case before
proceeding. The offset of local time from
UTC is shown in brackets.
The remaining contents of this panel are discussed in the IDT manual.

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3SETUP AND TEST OF THE LOGGER /USING IDT
The Multilog2WW logger is largely compliant with the general-purpose basic logger
functionality described in the IDT User-Guide.
Refer to the IDT guide for information regarding setup (or confirmation of setup) of
Multilog2WW.
e.g.
•Setup of logger to local time.
•Setup of measurement timing requirements.
•Setup for interface operation.
•Setup for converting sensor measurements to logged data-points.
•Ensure logger is activated (recording).
•Setup for communications.
oSetup for accessing the cellular network.
oSetup for data delivery
(destination server, delivery method, delivery times).
•Setup of additional features:
oTriggers for alarm conditions
•Test of the logger and communications to the server.
The IDT tool can also be used with Multilog2WW for other purposes.
e.g.
•Local download of and display of data whilst making a visit to the installation
site.

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4INTERFACES AND SENSORS SUPPORTED
Note: Support for specific interfaces or functions vary and are dependent upon the
model supplied.
4.1 PHYSICAL FEATURES /IDENTIFYING CONNECTOR FUNCTIONS
Refer to section 2.1 for a description of the physical features of the logger, including the
label that provides identification of interface positions.
Another label on the front of the logger shows the
model number (part-number) of the unit.
e.g., MP/31RVQ0/1/UK15 (shown opposite).
It also shows the serial number.
e.g., 13238 (shown opposite).
The label then shows a table which states the type of
interface that is fitted at each of the positions.
The table shows:
•Antenna (connector type)
•Communications and external battery input
•Unused locations (labelled “NA” or blank)
•Sensor type that should be attached.
(or an electrical interface type if it is a
multi-purpose interface).
Note: The table content will vary according to
model (part-number) supplied.
All connector
positions are
shown opposite,
although usually
not all are used,
depending on the
model part-
number ordered.
For optimal battery
life, mount “this
way up” as shown
by the direction of
the arrow in the
diagram.
T1 T2 T3 T4
B1 B2 B3 B4
Do not
remove seal.
(For factory
use only).
This way up

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4.2 SUPPORTED INTERFACES
(Supplied interfaces are dependent on model part-number)
Pressure Inputs: Description
4-pin Connector External Pressure transducer
(Options: Standard or High Temperature or High accuracy).
6-pin Connector (As above. Includes ground screen).
(direct) Coupling Internal Pressure Transducer (Options: 20 bar, 30 bar).
Digital Pulse Inputs: Example Use (Bi Flow)
4-pin Connector 1 channel input (Pulses/Direction)
producing 1 logical channel output: “net flow”.
4-pin Connector 2 channel inputs (Forward & Reverse pulses)
combined to 1 logical channel output: “net flow”.
Example Use (Uni Flow)
4-pin Connector 2 x 1 channel input (Pulses)
producing 2 x 1 logical output channel outputs:
“unidirectional flow”.
Example Use (Status)
4-pin Connector 2 x 1 channel Status input
producing 2 x 1 logical channel output: “Status”.
Digital Outputs: Description
3-pin Connector 2 x Digital Output channel (configurable use).
Voltage inputs: Description
4-pin Connector Voltage Input (0-1V) ; passive
4-pin Connector Voltage Input (0-10V) ; passive
Current inputs: Description
4-pin Connector Current Input (4-20mA) ; passive
4-pin Connector Current Input (4-20mA) ; active
Temperature inputs: Description
4-pin Connector External Temperature Input (RTD)
6-pin Connector External Temperature Input (RTD) ; (includes ground screen)
Serial Comms inputs: Description
4-pin Connector Modbus
4-pin Connector SDI-12
Custom Sensor inputs: Description
4-pin Connector SonicSens2
(Ultrasound distance / depth sensor).

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6-pin Connector SonicSens3
(Ultrasound distance / depth sensor).
4-pin Connector Raven Eye Interface
(Modbus interface with power feed for a Radar Flow meter).
4.3 LOGGER CHANNEL TYPES AND DATA INTERPRETATION
Refer to the IDT (PC version) user guide for an introduction to this topic.
For most sensor interfaces, follow the general guidance within the IDT user-guide; the
logger complies with the description and examples of setup provided therein.
However, some HWM sensors require specialised setup screens or have their own user-
guide which provides further guidance.
The various tabs within IDT for the setup and test of the logger will have considerable
variation in content depending on the logger model number and the sensors being
installed.
Where required, IDT can be used to check or make any changes to the logger settings.
Note: The logger will usually have settings pre-programmed by the factory prior to
shipping. However, the installer has responsibility for confirming the
settings are appropriate for use at the installed site.
If you have specific requirements this can be discussed with your HWM sales
representative at the time of ordering the loggers.
4.4 DIGITAL PULSE INPUT INTERFACE
The Digital Pulse Interface has various applications of use including the detection of
meter output pulses.
4.4.1 Meter Pulse support
The logger can be configured to support several versions of meter pulse signalling
(listed in section 4.2).
From the meter pulses, the logger can be used to:
•Measure Flow rates through the meter.
•Track meter reading values (provide automated meter reading).
4.4.2 Digital Inputs
The logger digital input can be configured for general-purpose use in detecting switch
contacts. This has many uses.
e.g.
•Detection of door / window / equipment-access openings for security purposes.

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4.5 SDI-12 INTERFACE SUPPORT
The logger SDI-12 interface provides the ability to expand the logger by linking it to other
equipment via this serial interface. The external equipment drives any sensor
electronics; one or multiple sensors may be attached to it.
SDI-12 is a protocol in which the logger can make a request for a sensor reading to the
attached equipment. The equipment responds when the sensor measurement has
been obtained.
Obtaining a sample of measurement data is done via the SDI-12 driver, and the data-
stream will then behave like any other and require similar setup for the channel
regarding what the data actually represents. The SDI-12 driver will require certain
parameters to be set-up in order to match the attached unit in order for the equipment
to operate correctly with the logger.
Refer to IDT user-guide regarding how to set up the SDI-12 driver parameters. This must
be read in conjunction with the user-guide of the equipment that is being attached.
4.6 MODBUS INTERFACE SUPPORT
The logger MODBUS interface provides the ability to expand the logger by linking it to
other equipment via this serial interface. The external equipment drives any sensor
electronics; one or multiple sensors may be attached to it. These results are made
available to the logger by reading them from certain registers over the Modbus link.
Modbus is a protocol in which the logger can operate as the master device, sending
setup instructions and other information to the attached device, which operates in slave
mode. This includes the ability to address each register and (depending on the attached
unit) read and write to the registers.
Obtaining a sample of measurement data is done via the MODBUS driver, and the data-
stream will then behave like any other and require similar setup for the channel
regarding what the data actually represents. The Modbus driver will require certain
parameters to be set-up in order to match the attached unit in order for the equipment
to operate correctly with the logger.
Refer to IDT user-guide regarding how to set up the Modbus driver parameters. This
must be read in conjunction with the user-guide of the equipment that is being
attached.
4.7 “RAVEN-EYE”COMPATIBLE INTERFACE SUPPORT
Note: “Raven-Eye” is a registered trademark of Flow-Tronic S.A.
The logger provides an interface that supports a Non-Contact RADAR Flow meter, which
detects the flow speed occurring at the surface of moving water. The interface is based
on Modbus, but in addition provides a suitable power-feed to the attached sensor
equipment. The power is not continuous but provided only when the logger requires a
measurement from the sensor equipment.

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It is possible to obtain additional information from the sensor equipment, should it be
required. The dimensions of the water channel can be given to it and also the water
depth within the channel; from these the unit can calculate the cross-sectional fluid area
and average fluid speed. The flow rate in the water channel can then be obtained by
multiplying fluid area by average fluid velocity.
The water channel dimensions have to be measured and entered on site.
To provide water depth information for the equipment, an additional sensor (such as
the SonicSens3) is also required. The logger coordinates the transfer of the water depth
information into the Raven-eye equipment.
4.8 SONICSENS3(ULTRASOUND DISTANCE /DEPTH SENSOR)SUPPORT
The SonicSens3 interface supports connection of a SonicSens3 Ultrasound sensor. The
interface provides power and communications to the sensor, which measures distance
to a fluid surface. By input of other parameters (e.g. distance from the bottom of the
water channel) the logger can calculate water depth. It can also derive a variety of other
measurements such as flow rates if situated near an open weir.
4.9 SONICSENS2(ULTRASOUND DISTANCE /DEPTH SENSOR)SUPPORT
The SonicSens2 interface supports connection of a SonicSens2 Ultrasound sensor. The
interface provides communications to the sensor, which measures distance to a fluid
surface. By input of other parameters (e.g. distance from the bottom of the water
channel) the logger can calculate water depth. It can also derive a variety of other
measurements such as flow rates if situated near an open weir.
4.10ANALOGUE VOLTAGE INPUT SUPPORT
The logger supports a general-purpose voltage input interface for connection to
suitable analogue sensors which support a voltage output.
Available ranges: 0 to 1 volt (d.c.), 0 to 10 volt (d.c.).
The interface will require setup require calibration factors and other setup for the
channel regarding what the data actually represents. Refer to IDT user guide for details.
4.11ANALOGUE CURRENT INPUT (4 to 20 mA) SUPPORT
The logger supports a general-purpose 4 to 20 mA input interface for connection to
suitable analogue sensors which support a 4 to 20 mA output.
The logger can support a passive interface (providing a current sink for sensor
equipment that has its own power from which to source the current).
The logger can support an active interface (provides a 24V power feed for sensor
equipment to use).

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The interface will require setup require calibration factors and other setup for the
channel regarding what the data actually represents. Refer to IDT user guide for details.

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5INSTALLATION
5.1 SUMMARY OF INSTALLATION STEPS
•Check the logger is suitable for use and that you have the required sensor
attachments. Check all cables are of a suitable length.
•Connect an appropriate communications cable and begin communications with
the logger. (Refer to section 2.5).
•Update the logger firmware if required.
(Refer to the IDT manual for guidance; consider downloading any existing data
from the logger prior to upgrade).
•Use IDT to:
oProgram a local time-zone into the logger (check or modify).
oSet the action or time when the Logger is to Start-up and begin recording
(logging).
oSet Timing intervals for making measurements (Sample interval and log
interval). They should be configured to suit your use of the device and any
specific logging requirements.
oCheck / modify channel settings for producing datapoints.
(Refer to the IDT user-guide for guidance details regarding setup of the
specific sensor interface).
▪Configure the logger interfaces to match the sensor or other
equipment that the logger connects to.
(There will be considerable variation in the requirements for this,
depending on the interfaces that are fitted to the logger and the
sensors or other equipment being used).
▪Map the sensor data to appear as a data channel within the logger.
This is a logical channel that is used for communication with the
server to which the logger will be uploading its logged
measurement data.
▪The numeric data-stream must be characterised as to what the
numbers represent.
▪Apply any required statistical functions to the background
measurement samples in order to produce logged data-points
(saved values).
oWhere required, undertake the setup of any additional options related to
the channel. (e.g., add an initial meter reading, pulse replication setting,
sensor calibration; these will be dependent on sensor and logger use).
(Refer to the IDT user-guide for guidance details regarding and any
additional setting options related to an interface).
oSetup any required trigger conditions for activating a logger alarm
messages and also conditions for the alarm to clear.
oAttach the sensors and (if required) re-calibrate / re-zero them.