Ahlborn ALMEMO 5690-2M User manual

____________________________
Operating instructions
english
Data acquisition system
ALMEMO
®
5690-2M
V4.1
15/03/2013
www.ahlborn.com

1. Operating controls
1. O ERATING CONTROLS
1.1 Front panel
(1) LCD
Status bar
C
Cont . Measuring point scan
© ll
Start / stop measuring
REC
Record to memory
COM
Measured value output
l© ©l
Program start / end of measuring
R01
Status of alarm relays
* *
Lighting on pause
Battery operation / charge status
13 lines for functions
Function of keys F1, F2, F3, F4
(2)Check lamps
START Measuring operation started
REC Measuring with results saved
COM Measuring with output
AVG Averaging
ALARM Limit value exceeded
Sensor breakage LoBat
LOCKED Keys locked
2 ALMEMO® 5690-2M
(2)Check lamps
ON Device is on.
SLEE Flashes in sleep mode.
CHARGE Battery is being charged.
Goes out as soon as fully
charged.
(3) Keypad
F1 to F4 Function keys (soft keys)
Cursor block
Switch on
Program
Switch OFF (press and
hold down)
▲ , ▼ , ► Function selection input
◄ Last menu
(4) Slot, multimedia card
SD Slot for memory card
ON
PROG

Rear
1.2 Rear
(5) Module A rechargeable
battery (option)
(a) Connection socket DC-A 12V
Mains adapter (ZB 1212-NA9, 12V, 2.5A)
(b) Check lamps
DC-A Mains supply present
C ARGE Battery is being charged.
Goes out as soon as fully
charged.
(6) Module MM-A9
Measuring circuit board
ALMEMO
(c) Measuring inputs M0 to M8
M0 to M8 for all ALMEMO sensors
M9 to M39 31 additional channels
(d)Code switches
G: Device address 0 to 99
(e) Key ON/OFF , START/STOP
No function
ALMEMO® 5690-2M 3
(f) Output sockets A1, A2
A1 Interface / optic fiber (ZA1909-DK5/L)
RS 422 (ZA 5099-NVL/NVB)
Ethernet (ZA 1945-DK)
Bluetooth (ZA 1709-BTx)
A2 Network cable (ZA1999-NK5/NKL)
A1/A2 Trigger input (ZA 1000-ET/EK)
Relay outputs (ZA 1000-EGK)
Analog output 2 (ZA 1601-RK)
(g) Connection socket DC 12V
Mains adapter (ZB 1212-NA6, 12V, 3A)
Cable electr. isol. (ZB 3090-UK2, 10-30V)
(h) Ground socket
(i) Check lamps
ON Device is on.
START Measuring operation started
REC Measuring with results saved
COM Measuring with output
ALARM Limit value exceeded
Sensor breakage LoBat

1. Operating controls
Extension of measuring points with selector switch boards
(7) Module U-A10: selector switch board 10 ALMEMO sockets
(j) Measuring inputs 0 to 9 x0 to x9 for all ALMEMO sensors
x+10 to x+39 max. 30 additional channels
(k) Code switch M: measuring point x: 10 to 90
(8) Module U-MU: selector switch board 10x MU connector
Measuring inputs x0 to x9 for analog sensors
without power supply
x+10 to x+39 max. 30 additional channels
Code switch internal: measuring point x: 10 to 90 on board
(9) Module U-TH: selector switch board 10 thermal sockets
Measuring inputs x0 to x9 for 10 thermocouples
x+10 to x+39 max. 30 additional channels
Code switch internal: measuring point x: 10 to 90 on board
(10) Module U-KS: selector switch board 2x5 clamp connectors
Measuring inputs x0 to x9 for analog sensors
without power supply
x+10 to x+39 max. 30 additional channels
Code switch internal: measuring point x: 10 to 90 on board
(11) Module RTA5: Relay - trigger - analog module
for 5 orange ALMEMO
®
clamp connectors
Sockets 0/1 TO 8/9
P0/1 2 semiconductor relays R0 R1
P2/3 2 semiconductor relays R2 R3
P4/5 2 analog outputs (option)
P6/7 2 analog outputs (option)
P8/9 2 trigger inputs TR8 TR9
LED signal lamps
ON Power supply ON
x Act Port active
x Inv Port driven inverted
WATC DOG Drive failure
4 ALMEMO® 5690-2M

Contents
2. CONTENTS
1. O ERATING CONTROLS ........................................................................2
1.1 Front panel .......................................................................................... 2
1.2 Rear .....................................................................................................3
3. GENERAL ..................................................................................................8
3.1 Warranty .............................................................................................. 8
3.2 Scope of delivery ...............................................................................9
3.3 Waste disposal....................................................................................9
4. SAFETY INSTRUCTIONS........................................................................10
4.1 Special notes on use.........................................................................11
4.2 Handling batteries / rechargeable batteries correctly....................11
5. INTRODUCTION ......................................................................................12
5.1 Functions of the ALMEMO 5690-2M ...............................................12
5.1.1 Sensor programming..................................................................13
5.1.2 Measuring operations ................................................................14
5.1.3 Process control .........................................................................15
6. INITIAL COMMISSIONING ......................................................................17
7. OWER SU LY ....................................................................................18
7.1 Mains operation ................................................................................18
7.2 External DC voltage supply .............................................................18
7.3 Operation with rechargeable battery
(only with module ES5690-A )........................................................18
7.4 Sensor supply ..................................................................................19
7.5 Switching ON / OFF, Reinitialization ...............................................19
7.6 Data buffering ...................................................................................19
8. CONNECTING THE TRANSDUCERS ....................................................20
8.1 Transducers ......................................................................................20
8.2 Measuring inputs and additional channels ....................................20
8.3 Extending the measuring points .....................................................21
8.4 otential separation .........................................................................22
9. RELAY TRIGGER ANALOG MODULE ...................................................24
9.1 ower supply ....................................................................................24
9.2 Interface elements and options ......................................................24
9.2.1 Relays .......................................................................................25
9.2.2 Trigger inputs ............................................................................25
9.2.3 Analog outputs ..........................................................................25
9.2.4 Connecting peripheral equipment .............................................26
9.2.5 Putting into service ....................................................................26
9.3 Technical data .................................................................................26
10. DIS LAY AND KEY AD .........................................................................27
10.1 Display and menu selection ..........................................................27
10.2 Status symbols in the display and status LEDs ..........................28
10.3 Function keys .................................................................................28
10.4 Function selection ..........................................................................29
ALMEMO® 5690-2M 5

2. Contents
10.5 Data input .......................................................................................29
11. MEASURING WITH THE MEASURING MENUS ....................................30
11.1 Measuring with a measuring point ...............................................31
11.1.1 Selecting a measuring point ....................................................31
11.1.2 Peak value memory with date and time-of-day .......................31
11.2 Measured value correction and compensation ...........................32
11.2.1 Set measured value to zero ....................................................32
11.2.2 Zero-point adjustment .............................................................33
11.2.3 Sensor adjustment for chemical sensors and probes ..............33
11.2.4 Two-point adjustment with setpoint entry ................................34
11.2.5 Temperature compensation ...................................................35
11.2.6 Atmospheric pressure compensation ......................................35
11.2.7 Cold junction compensation ....................................................36
11.3 Measuring point scan and output .................................................37
11.3.1 Once-only output / saving of all measuring points ...................37
11.3.2 Cyclic output / saving of all measuring points .........................37
11.3.3 Memory space memory output clearing the memory ............38
11.3.4 Output menu functions.............................................................38
11.3.5 Displaying measured values as a line graph ...........................39
11.4 Averaging........................................................................................40
11.4.1 Smoothing out meas. val. by means of a sliding average .......41
11.4.2 Averaging mode.......................................................................41
11.4.3 Averaging over individual manual measuring ..........................41
11.4.4 Networked measuring .............................................................42
11.4.5 Averaging over the measuring time measuring duration .........43
11.4.6 Measuring time measuring duration timer..............................43
11.4.7 Averaging over the cycle .........................................................44
11.4.8 Averaging over measuring points ............................................45
11.4.9 Volume flow measurement.......................................................46
11.5 Display of several measuring points ............................................47
11.5.1 Menu Multi-channel display and bar charts .............................47
11.5.2 Differential measurement ........................................................47
11.5.3 Menu Measuring points list .....................................................48
11.6 Wizard menus for special measuring operations ........................49
11.6.1 Thermal coefficient ..................................................................49
11.6.2 Wet bulb globe temperature.....................................................49
11.7 User menus ....................................................................................50
11.7.1 Functions.................................................................................50
11.7.2 Menu configuration .................................................................51
11.7.3 Function printouts.....................................................................52
12. ROGRAMMING USING THE ROGRAMMING MENUS ......................53
12.1 Times and cycles ...........................................................................53
12.1.1 Date and time-of-day ...............................................................53
12.1.2 Cycle with memory activation and output format......................53
6 ALMEMO® 5690-2M

Contents
12.1.3 Measuring rate continuous measuring point scan...................54
12.1.4 Start time Start date End time End date Measuring duration.. .55
12.2 Measured value memory ...............................................................56
12.2.1 Memory with memory card.......................................................56
12.2.2 Measured data recording........................................................57
12.2.3 Numbering of measuring operations........................................58
12.2.4 Starting and stopping measuring operations............................58
12.2.5 Scanning mode........................................................................58
12.2.6 Memory output.........................................................................60
12.3 Sensor programming......................................................................61
12.3.1 Selecting the input channel......................................................62
12.3.2 Measuring point designation ...................................................62
12.3.3 Averaging mode.......................................................................63
12.3.4 Locking the sensor programming.............................................63
12.3.5 Limit values..............................................................................64
12.3.6 Scaling Decimal point setting..................................................64
12.3.7 Correction values.....................................................................65
12.3.8 Changing the units...................................................................65
12.3.9 Selecting the measuring range.................................................65
12.3.10 Function channels .................................................................68
12.3.11 Special measuring ranges Linearization Multi-point calibration
............................................................................................................ 70
12.4 Special functions.............................................................................70
12.4.1 Print cycle factor ......................................................................71
12.4.2 Minimum sensor power supply ................................................71
12.4.3 Limit Value Responses ............................................................72
12.4.4 Analog start and analog end ...................................................73
12.4.5 Output function ........................................................................73
12.4.6 Reference channel 1................................................................74
12.4.7 Reference channel 2 or multiplexer .........................................74
12.4.8 Element flags...........................................................................74
12.5 Device configuration ......................................................................75
12.5.1 Device designation...................................................................75
12.5.2 Device address and networking...............................................75
12.5.3 Baud rate Data format.............................................................76
12.5.4 Language ................................................................................76
12.5.5 Backlighting and contrast.........................................................76
12.5.6 Atmospheric pressure..............................................................76
12.5.7 Hysteresis................................................................................77
12.5.8 Operating parameters..............................................................77
12.6 Output modules ..............................................................................77
12.6.1 Data cables .............................................................................78
12.6.2 relay trigger analog modules ...................................................78
12.6.3 Analog output ..........................................................................80
ALMEMO® 5690-2M 7

2. Contents
12.7 ower supply menu........................................................................81
12.8 Locking, calibration menu (option KL)..........................................81
13. TROUBLE-SHOOTING ...........................................................................83
14. DECLARATION OF CONFORMITY.........................................................84
15. A ENDIX................................................................................................ 85
15.1 Technical data ................................................................................85
15.2 Index................................................................................................. 87
15.3 Your contact person.......................................................................93
3. GENERAL
Congratulations on your purchase of this new and innovative ALMEMO
®
data
acquisition system. Thanks to the patented ALMEMO
®
connector the device
configures itself automatically and thanks to the supplied AMR-Control software
its operation should be fairly straightforward. The device can however be used
with such a wide range of sensors and peripherals and offers many different
special functions. You are advised therefore to properly familiarize yourself with
the way the sensors function and with the device's numerous possibilities and
take the time to carefully read these operating instructions and the appropriate
sections in the ALMEMO
®
Manual. This is absolutely necessary to avoid operat-
ing and measuring errors and to prevent damage to the device. To help you find
the answers to your questions quickly and easily there is a comprehensive in-
dex at the end both of these instructions and of the Manual.
3.1 Warranty
Each and every device before leaving our factory undergoes numerous quality
tests. We provide a guarantee lasting two years from delivery date that your
device will function trouble-free. Before you send your device to us please ob-
serve the advisory notes in Chapter 13. Trouble-shooting In the unlikely event
that the device proves defective and you need to return it please wherever pos-
sible use the original packaging material for dispatch and enclose a clear and
informative description of the fault and of the conditions in which it occurs.
This guarantee will not apply in the following cases :
● The customer attempts any form of unauthorized tampering and alteration inside the
device.
● The device is used in environments and conditions for which it is not suited.
● The device is used with unsuitable power supply equipment and peripherals.
● The device is used for any purpose other than that for which it is intended.
● The device is damaged by electrostatic discharge or lightning.
● The user fails to observe and respect the operating instructions.
The manufacturer reserves the right to change the product's characteristics in
the light of technical progress or to benefit from the introduction of new compo-
nents.
8 ALMEMO® 5690-2M

Scope of delivery
3.2 Scope of delivery
When you unpack the device check carefully for any signs of transport damage
and that delivery is complete.
Measuring instrument ALMEMO
®
5690-2M
SD card and USB card reader
Mains adapter ZB1212-NA9 12V 2.5A
These operating instructions
ALMEMO
®
Manual
CD with the AMR-Control software and various useful accessories
In the event of transport damage please retain the packaging material and in-
form your supplier immediately.
3.3 Waste disposal
The pictogram showing a waste bin crossed through means
that the product is subject to European Union regulations on
segregated waste disposal. This applies both to the prod-
uct itself and to any accessories marked with the same
symbol. Disposal of any such item as unsorted domestic
waste is strictly forbidden
• Please dispose of all packaging materials according to the applicable national
waste management regulations.
• Please dispose of cardboard boxes protective plastic packaging materials
and all preservative substances separately and in the proper manner.
• The disposal of the device itself (also of device parts accessories and con-
sumables) is subject to the applicable national and local waste management
regulations and to the environmental protection legislation in force in the coun-
try of use.
• Please dispose of all waste in the proper manner;
this applies in particular to all parts and substances that constitute a hazard
for the environment. This includes inter alia plastics batteries and recharge-
able battery packs .
• When disposing of goods please wherever possible use the original packag-
ing materials.
ALMEMO® 5690-2M 9

4. Safety instructions
4. SAFETY INSTRUCTIONS
DANGER Danger to life and limb, risk of damage to equipment
Read the instructions carefully before starting to operate
the device.
lease ensure that you comply with all general safety ad-
vice and the special safety instructions included in other
chapters.
Such risks may occur in the following circumstances :
•Failure to heed the operating instructions and all the
safety notes these contain
•Any form of unauthorized tampering or alteration in-
side the device
•Use of the device in environments or conditions for
which it is not suited
•Use of the device with an unsuitable power supply
and / or in conjunction with unsuitable peripheral
equipment
•Use of the device for any purpose other than that for
which it is intended
•Damage caused by electrostatic discharge or light-
ning.
DANGER Risk of fatal injury caused by dangerously high voltage
Such risks may occur in the following circumstances :
•Use of the device with an unsuitable power supply
and / or in conjunction with unsuitable peripheral
equipment
•Damage caused by electrostatic discharge or light-
ning
•Do not run sensor lines in the vicinity of high-voltage
power cables.
•Before you touch any sensor lines ensure that all
static electricity has been discharged.
10 ALMEMO® 5690-2M

Safety instructions
DANGER Warning - explosive atmospheres or substances
In the vicinity of various fuels or chemicals there is a risk of ex-
plosion.
Do not use the device in the close vicinity of blasting work or fill-
ing stations!
4.1 Special notes on use
• If the device is brought into the work-room from a cold environment
there is a risk that condensation might form on the electronics. In mea-
suring operations involving thermocouples pronounced changes in tem-
perature may cause substantial measuring errors. You are advised
therefore to wait until the device has adjusted to the ambient tempera-
ture before starting to use it.
• Before using the mains adapter make sure that the mains voltage is
suitable.
• Be sure to observe the maximum load capacity of the sensor power
supply.
• Sensors with their own integrated power supply are not electrically iso-
lated from one another
4.2 Handling batteries / rechargeable batteries correctly
When inserting batteries / rechargeable batteries ensure that
these are correctly polarized.
If the device will probably not be needed for a relatively long pe-
riod of time or if the batteries are empty remove the batteries;
this will prevent battery acid leaking onto the device and damag-
ing it.
Rechargeable batteries should be recharged as and when nec-
essary.
You should never attempt to recharge an ordinary (non-
rechargeable) battery; it may explode !
Batteries / rechargeable batteries must never be short-circuited
or thrown onto the fire.
Batteries / rechargeable batteries are special waste and must not
be discarded together with normal domestic waste.
ALMEMO® 5690-2M 11

5. Introduction
5. INTRODUCTION
The data acquisition system ALMEMO
®
5690-2M is a new member in our fam-
ily of unique measuring devices - all equipped with Ahlborn's patented
ALMEMO
®
connector system. The intelligent ALMEMO
®
connector offers deci-
sive advantages when connecting sensors and peripherals because all parame-
ters are stored in an EEPROM located on the connector itself; repeat program-
ming is thus no longer necessary.
All sensors and output modules can be connected to all ALMEMO® measuring
instruments in the same way. Programming and functioning are identical for all
units. The following points apply to all devices in the ALMEMO® measuring
system; these are described in detail in the ALMEMO® Manual which is in-
cluded in delivery with each device.
Detailed explanation of the ALMEMO
®
system (Manual Ch 1)
Overview of the device functions and measuring ranges (Manual Ch 2)
Basic principles operation and technical data for all sensors (Man. Ch 3)
Options for connecting your own existing sensors (Manual Ch 4)
All analog and digital output modules (Manual 5.1)
Interface modules RS-232 optic fiber (Manual 5.2)
The whole ALMEMO® networking system (Manual 5.3)
All functions and their operation via the interface (Manual Ch 6)
Complete list of interface commands with all the print layouts (Man. Ch 7)
The operating instructions you are now reading cover only those features and
controls that are specific to this device. Many sections therefore also refer to
the more detailed description in the Manual; (see Manual Section xxx).
5.1 Functions of the ALMEMO 5690-2M
The data acquisition system ALMEMO® 5690-2M has basically 9 electrically
isolated measuring inputs with over 70 measuring ranges - suitable for all
ALMEMO® sensors. This number can using various selector switch boards
be extended to 99 inputs. To accommodate these various expansion stages
the desktop housing is available in 32-DU / 84-DU sizes and a 19-inch rack is
available. For operation purposes the device incorporates an LCD graphics
display and a soft-key keypad with cursor block. The display can be adapted
by means of configurable user menus to suit any application. Thanks to the
real-time clock incorporated as standard and with a SD card the amount of
data you can record is virtually endless. A variant is available with an inte-
grated 512-KB EEPROM memory sufficient for approx. 100 000 measured val-
ues. With optionally Module RTA5 available to 10 internal connections any
ALMEMO® output modules e.g. analog output digital interface trigger input
or alarm contacts. Several devices can be networked by simply linking them
together via cable.
The system is fed by default via a 12-V mains adapter. There is also the option
of using a rechargeable battery module.
12 ALMEMO® 5690-2M

Functions of the ALMEMO 5690-2M
5.1.1 Sensor programming
The measuring channels are programmed completely and automatically by
the ALMEMO® connectors. However the user can easily supplement or mod-
ify this programming via the keypad or via the interface.
Measuring ranges
Appropriate measuring ranges are available for all sensors with a non-linear
characteristic e.g. 10 thermocouple types NTC and PT100 probes infrared
sensors and flow transducers (rotating vanes thermoanemometers Pitot
tubes). For humidity sensors additional function channels are available for cal-
culating humidity variables such as dew point mixture ratio vapor pressure
and enthalpy. Even complex chemical sensors are supported. Measured val-
ues from other sensors can also be acquired using the voltage current and
resistance ranges with individual scaling in the connector. Existing sensors
can also be used - so long as the appropriate ALMEMO® connector is con-
nected via its screw terminals. For digital input signals frequencies and
pulses adapter connectors are available with an integrated microcontroller. It
is thus possible to connect virtually any sensor to any ALMEMO® measuring
instrument and to change sensors without the need for any extra settings.
Function channels
Maximum minimum average and differential values from certain measuring
points can be programmed as function channels also internal channels and
can be processed and printed out like normal measuring points. There are also
function channels available for special measuring tasks e.g. to determine the
temperature coefficient Q/DT and wet bulb globe temperature.
Units
The 2-character units display can be adapted for each measuring channel so
that both the display and the printout always indicate the correct units e.g.
when a transmitter is connected. Conversion between °C and °F is performed
automatically.
Measured value designation
Each sensor is identified by means of a 10-character alphanumeric name. It is
entered via the keypad or the interface and appears in the display in the print-
out or on the computer screen.
Correction of measured values
The measured value on each measuring channel can be corrected both in
terms of zero-point and gain; this means that even sensors usually requiring
initial adjustment (e.g. expansion force pH) can be freely interchanged. Zero-
point correction and partly at least gain adjustment can be performed at the
touch of a button.
Scaling
The corrected measured value on each measuring channel can also be further
scaled in terms of zero-point and gain - using the base value and factor. The
decimal point position can be set by means of the exponent function. The scal-
ing values can be calculated automatically by setting to zero and entering the
ALMEMO® 5690-2M 13

5. Introduction
nominal setpoint or via the scaling menu.
Limit values and alarm
Per measuring channel two limit values can be set (1 maximum and 1 mini-
mum). In the event of one of these limit values being exceeded an alarm sig-
nal is output and relay output modules actuate the associated alarm contacts;
these can be allocated individually to specific limit values. Hysteresis is set by
default to 10 digits but this can be adjusted to any number between 0 and 99.
The exceeding of a limit value can also be used to start or stop measured
value recording automatically or via macros to initiate other specified actions.
Sensor locking
All sensor data stored in the connector EEPROM can be protected by means
of a graduated locking function against undesired access.
5.1.2 Measuring operations
For each transducer up to four measuring channels are available; i.e. it is also
possible to evaluate double sensors individually scaled sensors and sensors
with function channels. You can move forwards or backwards from one mea-
suring channel to the next using the keypad. By default all measuring points
are scanned continuously at a measuring rate of 10 mops and the data thus
obtained is listed on the display. However if you want to have the measured
values for the selected channel sent to an analog output it may be an advan-
tage to use semi-continuous mode instead; the output value will then always
be refreshed at half the measuring rate set - irrespective of the number of
measuring points involved.
Measured values
The measured values of 1 to 20 measuring points can be indicated on the dis-
play using a variety of menus some user-configurable in three font sizes and
in the form of a bar chart or line graph. Measured values are acquired auto-
matically with auto-zero and self-calibration; however they can also be cor-
rected and scaled arbitrarily as required. With most sensors a sensor break-
age is detected automatically.
Analog output and scaling
By means of analog start and analog end any measuring point can be scaled
in such a way that the resulting measuring range covers the full range of the
bar chart or line graph or of an analog output (2 V 10 V or 20 mA). At the
analog output the device can output the measured value from any measuring
point or a programmed value.
Measuring functions
With some sensors to achieve optimal measured value acquisition certain
special measuring functions are required. Cold junction compensation is pro-
vided for thermocouples; temperature compensation is provided for dynamic
pressure pH and conductivity probes; and atmospheric pressure compensa-
tion is provided for humidity sensors dynamic pressure sensors and O2 sen-
sors. On infrared sensors the parameters for zero-point correction and gain
14 ALMEMO® 5690-2M

Functions of the ALMEMO 5690-2M
correction are used as the background temperature and the emissivity factor.
Maximum and minimum values
Each measuring operation acquires and stores the maximum and minimum
values with date and time-of-day. These values can then be displayed printed
out or deleted from memory.
Average value
Measured values can be expressed as a sliding average obtained by continu-
ous automatic smoothing or manually averaged over a certain period or cycle
or over a series of individual measuring operations.
5.1.3 rocess control
To record the measured values from all connected sensors in digital form mea-
suring point scanning is performed continuously with measured value output
according to a time-based process control. This may be per output cycle or if
really rapid results are required at the measuring rate itself. The measuring
operation can be started and stopped by means of the keyboard the interface
an external trigger signal the real-time clock or by a specified limit value be-
ing exceeded.
Date and time-of-day
All measuring operations can be accurately logged using the real-time clock
with date function or in terms of the pure measuring time. For the purposes of
starting / stopping a measuring operation the start / stop date and time-of-day
can be programmed.
Cycle
The cycle can be programmed to any value between 00:00:01 (1 second) and
59:59:59 hh:mm:ss. This function permits cyclic output of measured values to
the interfaces or to the memory and provides cyclic calculation of the average
value.
rint cycle factor
The print cycle factor can be used to limit data output from particular channels;
this may be necessary in order to reduce excessive data flow especially while
data is being saved.
Averaging over measuring point scans
The measured values from measuring point scans can be averaged either
over the whole measuring duration or over the specified cycle. Function chan-
nels are available for the cyclic output and storage of these average values.
Measuring rate
On the ALMEMO® 5690-2M all measuring points are scanned at the measur-
ing rate set (2.5 10 50 or 100 measuring operations per second). Recording
can be accelerated if all measured values are stored to memory and / or out -
put to the interface at the measuring rate.
Measured value memory
To save measured values there are two alternative methods.
Normally a SD card is used as storage medium. This solution offers a virtually
ALMEMO® 5690-2M 15

5. Introduction
limitless memory capacity. With the memory card files can be read very
quickly via any standard card reader; however ring memory and selective
readout are not possible.
Option S is a 512-KB non-volatile EEPROM sufficient for up to 100 000 mea-
sured values. This memory can be organized and configured in linear or ring
form. For output via the interface it is possible to specify a selection according
to either the time interval or the number assigned to the measuring operation.
Numbering of measuring operations
By entering a number single scans or entire series of measuring operations
can be identified and selectively read out from the memory.
Control outputs
Via the keypad and interface up to four output relays and analog outputs can
be individually addressed.
Operation
All measuring and function values can be displayed in different menus on the
dot matrix LCD screen. Three user menus can be individually configured from
a range of nearly 50 functions for your specific applications. You can use texts
lines and blank lines to arrange and format the layout in a style suited to your
application. Nine keys (four of them soft keys) can be used to operate the de-
vice. This system also allows you to fully program the sensors the device and
the process control.
Output
All data logs menu functions saved measured values and stored program
parameters can be output to any peripheral equipment. Interfaces for RS-232
RS-422 and Ethernet are provided by the appropriate interface cables. Mea-
sured data can be output in list column or table format. Files in table format
can be processed directly using any standard spreadsheet software. The print
header can be programmed specifically for the company or your application.
Networking
All ALMEMO® devices can be addressed and can be easily networked by
simply linking them together via network cable or for longer distances via RS-
422 network distributors.
Software
Each ALMEMO® Manual is accompanied by the AMR-Control software pack-
age which can be used to configure the measuring instrument and user
menus to program the sensors and to read out from the measured value
memory. Using the integrated terminal measuring operations can also be per-
formed online. The software package WIN-Control is provided for the pur-
poses of measured value acquisition via networked devices for graphical pre-
sentation and for more complex data processing.
16 ALMEMO® 5690-2M

Initial commissioning
6. INITIAL COMMISSIONING
Sensor connection : Plug in sensor at socket M0 to M8 (6c); see Section 8.
ower supply : Via mains adapter to socket DC (6g); see 7.3, 7.1.
Switch on : Press ON ROG key (3) on front panel; see 7.5.
Automatic display of last measuring menu see Ch 11. Keys
To activate MEASURING menus press < ESC > or F4
e.g. select standard display menu; see 10.1  /  ... ( F )
To activate menu press 
Select measuring point (see 11.1.1) by means of keys :  /  ... ( M )
To select max / min alues function(see 10.4) press PROG ,  ...
Clear max / min values (see 11.1.2 < CLR > or F1
Output of measured values or memory via interface :
- Connect peripheral device via data cable to socket A1 (6f); see Manual 5.2
- On peripheral device set 9600 baud 8 data bits 1 stop bit no parity.
Once-only output / saving to memory see 11.3.1 < MANU > or F2
Cyclic measuring operation : Select cycle timer : PROG ,  ...
Enter cycle (hh:mm:ss); see 10.5 Cycle timer: 00:05:00Sn
Output format list ´ ´ Columns ´n´ Table ´t´ < FORM> or F3 ...
Terminate programming < ESC> or F4
Start / stop cyclic measuring operation; see 11.3.2 <START> , <STOP> or F1
Output from memory to the printer or to the computer :
Select Memory capacity free function by means of : PROG ,  ...
Output memory; see 12.2.6 < PRINT> or F3
Clear the memory; see 12.2.6 < CMEM >
ALMEMO® 5690-2M 17
F1 F2 | F3 F4

 PROG 

F1 F2 | F3 F4

 PROG 

* ALMEMO 5690-2M *
±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±
MEASURING Menus
Standard display ©
U1 Meas. alue correction
U2 A eraging
U3 Volume flow
Data logger
Multi-channel display
*List of measuring points
Bar chart
Line graph
__________________________
Menu1 PROGRAMMING Menus
Menu2 ASSISTANT Menus
POFF *ON F MENU1 MENU2
C © REC COM l© ©l R01 * ´´´´´´µµµµ¶
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
01: Velocity m/s
æ » H º
28.67
Maximum alue: 31.34 mls
Minimum alue: 25.37 mls
Cycle-timer: 00:02:30 Un
Memory free: 512.0 kB
START MANU M PRINT ESC

7. Power supply
7. OWER SU LY
Power can be supplied to the instrument in any of the following ways :
Mains adapter 12V 2.5A ZB1212-NA9
Electr. isol. power supply cable 10 to 30 VDC 0.25 A (ZB3090-UK)
Electr. isol. power supply cable 10 to 30 VDC 1.25 A (ZB3090-UK2)
Rechargeable battery module NiMH 9.6 V / 1600 mAh (ES5690-AP)
See product overview Annex 14 and the following chapters.
7.1 Mains operation
To power the device from the mains use the mains adapter provided 12 V /
2.5A (ZB1212-NA9). The mains adapter must be connected to the DC socket
(6g) and locked by twisting to the right.
If necessary the device can also be grounded via the bare socket (6h) (e.g. pro-
tective ground connector).
7.2 External DC voltage supply
The DC socket (6g) can also be used to connect another DC voltage 10 to 13
V (minimum 200 mA). For this connection use a cable with 2 banana plugs (ZB
5090-EK). If however the power supply has to be electrically isolated from the
transducers or if a larger input voltage range 10 to 30 V is required then elec-
trically isolated supply cable (ZB 3090-UK) must be used (or ZB 3090-UK2 with
the rechargeable battery module). It will then be possible to use the measuring
instrument in a 12-volt or 24-volt on-board supply system.
7.3 Operation with rechargeable battery
(only with module ES5690-AP)
For mains-independent operation the system must be equipped with module AP
with eight NiMH rechargeable batteries (9.6 V / 1600 mAh). At a current con-
sumption of approx. 40 mA this will give an operating time of approx. 40 hours.
To prolong the operating time for the purposes of long-term recording the de-
vice can be left in SLEEP mode; (see 12.2.5). The operating voltage can be
checked in the
power supply
menu (see 12.7); this gives you a basis for esti-
mating the remaining operating time. When the remaining battery capacity
drops to approx. 10% the
´´µµµµµµµµµ¶
symbol in the status bar of the display will start
flashing; as soon as this happens the batteries must be recharged. If the batter-
ies are completely discharged the device will switch off to avoid the risk of criti-
cally low discharge. The measured data and time-of-day will however be re-
tained; see 7.6. The NiMH rechargeable batteries can in fact be recharged at
any time and in any charge status using the intelligent charge circuitry. To
charge the batteries the mains adapter 12V 2.5A (ZB1212-NA9) must be con-
nected to socket DC-A (5a) on the battery module. The " C ARGE " lamp should
then light up indicating that the batteries are being recharged. After approx. 3.5
18 ALMEMO® 5690-2M

Operation with rechargeable battery (only with module ES5690-AP)
hours the batteries are fully recharged and the LED goes out again. After a cer-
tain period the batteries are recharged again; the charge circuitry then switches
over to trickle charge. The mains adapter can thus be left permanently con-
nected to the measuring instrument in buffer mode without risk of overcharging
the batteries. If you prefer not to recharge the batteries e.g. to prevent the de -
vice from warming up during thermocouple measurement you can connect the
mains unit to the DC socket (6g).
7.4 Sensor supply
At the terminals + (plus) and – (minus) in the ALMEMO
®
connector there is for
mains operation a sensor supply voltage approx. 12 V 400 mA available
(self-healing fuse 500 mA). During battery operation the battery voltage is
available 9 to 11 V. Other voltages (15 or 24 V or references for a potentiome-
ter and strain gauge) can be obtained using special connectors; (see Manual
4.2.5 and 4.2.6).
7.5 Switching ON / OFF, Reinitialization
To switch the device ON press the ON-PROG key (3); the ´ ON ´ lamp should light
up as verification.
To switch the device OFF press the ON-PROG key and hold down for approx. 1
second. After the device is switched off the real-time clock continues to run and
all saved values and settings are retained intact; (see 7.6).
If the device behaves abnormally as the result of interference (e.g. electrostatic
or mains failure) you are advised try first of all to clear the problem simply by
reinitializing i.e. switching off and then on again.
If this does not help then you can reinitialize the device. To activate Reset
press
F1 r
when switching on. To restore all device programming (including
times device designation user menus etc.) to the factory default settings press
F4 r
when switching on. Only the programming of the sensors in the ALMEMO
®
connectors remains unaffected.
7.6 Data buffering
The sensor's programming is stored in the EEPROM on the sensor connector
and the device's calibration and programmed parameters are stored in the
EEPROM on the instrument itself both on a fail-safe basis. The memory data
is also saved in non-volatile EEPROMs. The date and time-of-day are buffered
by a dedicated lithium battery; even when the device is switched off and with-
out batteries this data is retained intact for years.
ALMEMO® 5690-2M 19

8. Connecting the transducers
8. CONNECTING THE TRANSDUCERS
Virtually any ALMEMO
®
sensor can be connected to the input sockets on
ALMEMO
®
modules types (6) and (7). To connect your own existing sensors
you simply need the appropriate ALMEMO
®
connector. Other compact modules
are described below.
8.1 Transducers
The ALMEMO
®
Manual includes detailed descriptions of the comprehensive
ALMEMO
®
range of sensors (see Manual Ch 3) and instructions for connecting
your own existing sensors to ALMEMO
®
instruments (see Manual Ch 4). All
standard sensors with an ALMEMO
®
connector usually have the measuring
range and units already programmed and can thus be connected to any input
socket without further adjustment. A mechanical coding system ensures that
sensor and output modules can only be connected to the correct sockets. All
ALMEMO
®
connectors incorporate two snap-lock levers; these snap into posi-
tion as soon as the connector is inserted into the socket thus preventing unin-
tended disconnection if the cable is accidentally pulled. To withdraw the con-
nector both these levers must be pressed in at the sides.
8.2 Measuring inputs and additional channels
Measuring circuit board MM-A9 has 9 input sockets (6c) to which initially mea-
suring channels M0 to M8 are allocated. However ALMEMO
®
sensors can if
required provide up to 4 channels with 9 input sockets each so that altogether
36 channels are available. The additional channels can be used in particular for
humidity sensors with four measuring variables (temperature / humidity / dew
point / mixture ratio) or for function channels. Each sensor can if necessary be
programmed with several measuring ranges or scaling settings; and two or
three sensors if pin assignment so permits can be combined in a single con-
nector (e.g. rH / NTC mV / V mA / V etc.). The additional measuring channel
numbers per connector go up in steps of 10 (e.g. the first sensor has channels
M0 M10 M20 M30 the second sensor has channels M1 M11 M21 M31
etc.).
Device-internal channels
A further innovation on this device is its four additional device-internal channels.
The first of these M9 is programmed by default as differential channel M1 – M0.
This only applies however if there are two sensors with the same units and
same decimal point position connected at measuring points M0 and M1. How-
ever all four channels can be programmed with any other function channels
(e.g. U-Bat cold junction compensation average volume flow etc.); (see Man-
ual 6.3.4). The reference channels used are by default Mb1 = M1 and Mb2 =
M0 but this can be modified (see Manual 6.3.4).
The advantage of device-internal channels is that when using several sensors
for the same application these sensors do not have to be reprogrammed and
20 ALMEMO® 5690-2M