Ahlborn ALMEMO 204 User manual

____________________________
Operating instructions
english
V7 special measuring instrument
ALMEMO® 204
for digital sensors
V1.0
13.01.2020
www.ahlborn.com

1. Operating controlse
1. OPE ATING CONT OLSE
(1) Measuring sockets M0, M3
M0...M3 for digital ALM MO®
sensors DIGI, D6, D7 only
M0.0...M3.9 for up to 40 meas. chan.
(2) Output socket A1, A2
A1 USB interface (ZA 1919-DKU)
Optic fiber (ZA1909-DKL)
V24 (ZA1909-DK5)
thernet (ZA1945-DK)
Trigger input (ZA1006-ET/EK2)
Relay outputs (ZA1006-EGK)
Analog output 1 (ZA160x-RI/RU)
A2 Network cable (ZA1999-NK5/NKL)
Plug-in memory (ZA1904-SD)
Trigger input (ZA1006-ET/EK2)
Relay outputs (ZA1006-EKG)
Relay t igge adapte (ZA1006-RTA)
Analog output 2 (ZA160x-RI/RU)
(3) Connection socket DC 12V
Mains adapter (ZA1312-NA10, 12V, 2A)
Cable, el. isol. (ZA2690-UK, 10-30V)
(4) LCD graphics display
7 rows for functions
1 row for softkeys F1,◄,▲,►, F2
Shown in b ackets: < MENU > , <FCT>
(5) Operating keys
ON To switch device ON
To switch device OFF: p ess and hold down
F1 , F2 Function keys (Softkeys)
▲, ▼ ... M: To select a measu ing point
▲, ▼, ► F: To select a menu
PROG , ▼... F: To select a function
◄ ... return to menu selection
< M ◄◄ > go di ectly to the meas. menu
< F ►► > go di ectly to the meas. menu
PROG To program
▲, ▼, ►... To enter data
Rear of device:
(6) Battery compartment
3 AA alkaline-manganese batteries
2 ALM MO® 204

Table of contents
2. TABLE OF CONTENTS
1. OPE ATING CONT OLSE.......................................................................2
2. GENE AL................................................................................................... 6
2.1 Warranty..............................................................................................6
2.2 Standard delivery...............................................................................7
2.3 Waste disposal................................................................................... 7
3. SAFETY INST UCTIONS..........................................................................8
3.1 Special notes on use..........................................................................9
3.2 Handling batteries / rechargeable batteries correctly.....................9
4. INT ODUCTION.......................................................................................10
4.1 Functions of the ALMEMO® 204......................................................11
4.1.1 Sensor programming................................................................11
4.1.2 Measuring operation.................................................................12
4.1.3 Process control.........................................................................13
5. PUTTING INTO SE VICE........................................................................16
6. POWE SUPPLY..................................................................................... 17
6.1 Battery operation and supply voltage monitoring.........................17
6.2 Mains operation................................................................................17
6.3 External DC voltage supply.............................................................17
6.4 Sensor supply...................................................................................18
6.5 Switching ON / OFF, reinitialization................................................18
6.6 Data buffering...................................................................................18
7. CONNECTING SENSO S / T ANSDUCE S..........................................18
7.1 Standard sensor (V5).......................................................................19
7.2 D6 sensors........................................................................................19
7.3 D7 sensors........................................................................................19
7.4 Measuring inputs und additional channels....................................20
7.5 Potential separation.........................................................................20
8. DISPLAY AND KEYPAD..........................................................................21
8.1 Display and menu selection............................................................21
8.2 Measured value display and status symbols.................................21
8.3 Function keys...................................................................................22
8.4 Function selection............................................................................23
8.5 To enter data.....................................................................................23
9. MENU SELECTION..................................................................................25
10. MEASU ING MENUS..............................................................................26
10.1 Sensor display menu.....................................................................26
10.1.1 Measuring channel selection..................................................26
10.2 Measured value correction and compensation............................26
10.2.1 Setting measured values to zeron..........................................27
10.2.2 Atmospheric pressure compensation.....................................27
ALM MO® 204 3

2. Table of contents
10.3 Measuring points list menu...........................................................28
10.4 User menu U2 - data logger...........................................................28
11. MEASU ED DATA SCANNING AND OUTPUT......................................29
12. USE MENUS...........................................................................................29
12.1 Functions........................................................................................29
12.2 Configuration of user menus........................................................31
13. FUNCTIONS MENUS...............................................................................32
13.1 Maximum, minimum, individual value memory...........................32
13.2 Averaging........................................................................................33
13.2.1 Smoothing meas. values by means of a sliding average........33
13.2.2 Averaging over manually selected meas. operations..............34
13.2.3 Averaging over time................................................................35
13.2.4 Averaging over a cycle...........................................................35
13.2.5 Averaging over measuring points...........................................36
13.2.6 Volume flow measurement.....................................................36
13.3 Two-point adjustment with Setpoint entry...................................37
13.4 Scaling.............................................................................................37
13.5 Data logger functions.....................................................................38
13.5.1 Internal data memory..............................................................38
13.5.2 xternal plug-in memory incorporating Memory card.............38
13.5.3 Numbering of measuring operations.......................................39
13.5.4 Once-only saving of all measuring points...............................39
13.5.5 Cyclic saving of all measuring points......................................40
13.5.6 Memory capacity, memory output and clearing......................40
13.5.7 Scanning configuration...........................................................41
13.5.8 Scan mode.............................................................................41
13.5.9 Starting and stopping measuring operations..........................43
14. SENSO P OG AMMING.....................................................................45
14.1 Selecting the input channel...........................................................45
14.2 Channel designation......................................................................45
14.3 Averaging mode.............................................................................46
14.4 Locking the sensor programming.................................................46
14.5 Limit values.....................................................................................46
14.6 Correction values...........................................................................47
14.7 Scaling, decimal point setting.......................................................47
14.8 Changing the units.........................................................................48
14.9 Selecting the measuring range.....................................................48
14.10 Sensor configuration...................................................................49
14.11 Multi-point calibration..................................................................50
14.12 Special functions..........................................................................50
14.12.1 Cycle factor..........................................................................50
14.12.2 Actions triggered by limit value infringement.........................51
14.12.3 Analog output start / end......................................................52
4 ALM MO® 204

Table of contents
14.12.4 Minimum sensor supply voltage...........................................52
14.12.5 Output function.....................................................................52
14.12.6 Reference channels..............................................................53
14.12.7 lement flags........................................................................53
15. DEVICE CONFIGU ATION.....................................................................54
15.1 Date and time-of-day......................................................................54
15.2 Device designation.........................................................................54
15.3 Language........................................................................................54
15.4 Illumination and Contrast..............................................................54
15.5 Interface, device address and networking...................................55
15.6 Baud rate, data format...................................................................55
15.7 Process control..............................................................................56
15.7.1 Sampling rate.........................................................................56
15.7.2 Scan cycle..............................................................................56
15.7.3 Output cycle...........................................................................57
15.8 Hysteresis....................................................................................... 57
15.9 Operating parameters....................................................................57
16. OUTPUT MODULES................................................................................58
16.1 Data cable.......................................................................................58
16.2 elay trigger modules....................................................................58
16.3 Analog outputs...............................................................................60
17. T OUBLE-SHOOTING............................................................................62
18. DECLA ATION OF CONFO MITY........................................................63
19. ......................................................................................................... ANNEX
64
19.1 Technical data................................................................................64
19.2 Product overview...........................................................................64
19.3 Index................................................................................................ 66
19.4 Your contact partner......................................................................70
ALM MO® 204 5

3. General
3. GENE AL
Congratulations on your purchase of this special ALM MO® measuring instru-
ment from our latest V7 generation. Please note that this device is designed
exclusively for use with standard digital sensors (DIGI, Freq, Inp) and the new
D6 and D7 series. Thanks to the patented ALM MO® plug the device config-
ures itself automatically and thanks to the menus and context-sensitive help
windows its operation should be fairly straightforward. The device can, how-
ever, be used with a wide range of sensors and peripherals and offers many
different special functions. You are advised to take the time to carefully read
these operating instructions and the relevant sections in the ALM MO® Manual
and to properly familiarize yourself with the way the new D7 sensors function
and with the extended range of features the V7 device can now provide. This
is the best way to avoid operating and measuring errors and prevent damage
to the device. To help you find answers to your questions as quickly and easily
as possible a comprehensive index is provided at the end of these instructions
and at the end of the Manual.
3.1 Warranty
ach and every device, before leaving our factory, undergoes numerous qual-
ity tests. We provide a manufacturer's guarantee, lasting two years from deliv-
ery date, that your device will function trouble-free. Before returning your de-
vice to us, please observe the advisory notes in Chapter 18, 'Trouble shooting'.
In the unlikely event that a device does prove defective and you need to return
it, please wherever possible use the original packaging materials for dispatch
and enclose a clear and informative description of the fault and of the condi-
tions in which it occurs.
This manufacturer's guarantee will not apply in the following circumstances:
Any form of unauthorized tampering or alteration inside 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 lightning
Failure to properly observe these 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.
6 ALM MO® 204

Standard delivery
3.2 Standard delivery
When you unpack the device please check carefully for any signs of transport
damage and ensure that delivery is complete.
- Measuring instrument ALM MO® 204 with three AA alkaline batteries
- These operating instructions
- ALM MO® Manual
- CD with ALM MO® 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 uropean Union regu-
lations covering segregated waste disposal. This applies
both to the product itself and to any accessories marked
with the same symbol. Disposal of any such item as un-
sorted domestic waste is strictly forbidden.
•Please dispose of all packaging materials in accordance with 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
country 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.
•For the dispatch of such goods please wherever possible use the original
packaging materials.
ALM MO® 204 7

4. Safety instructions
4. SAFETY INST UCTIONS
DANGE Danger to life and limb, risk of damage to equipment
Before starting to operate the device, please read the in-
structions carefully.
Please 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 inside 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 lightning.
DANGE isk of fatal injury through exposure to 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 lightning
- Do not run sensor lines in the vicinity of high-voltage power
cables.
- Before you touch any sensor lines, ensure that all static elec-
tricity has been discharged.
DANGE 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 vicinity of blasting work or filling
stations.
8 ALM MO® 204

Special notes on use
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
temperature may cause substantial measuring errors. You are advised
therefore, before starting to use the device, to wait until it has adjusted
to the ambient temperature.
•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 the
polarity is correct.
If the device will probably not be needed for a relatively long pe-
riod of time or if the batteries are empty, the batteries should be
removed; this will prevent battery acid leaking onto the device
and damaging 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 and rechargeable batteries are special waste and must
not be discarded as normal domestic waste.
ALM MO® 204 9

5. Introduction
5. INT ODUCTION
The ALM MO
®
204 is a new member in our family of unique measuring devices
- all equipped with Ahlborn's patented ALM MO
®
plug system. The intelligent
ALM MO
®
plug system - successfully tried and tested for over 20 years - offers
decisive advantages when connecting sensors and peripherals; since all param-
eters are stored in an PROM located on the connector itself, there is no need
to repeat programming. Any sensor or output module can be connected to any
ALM MO
®
measuring instrument - all in the same way.
Intelligent digital ALM MO
®
sensors of the new D7 generation operating in con-
junction with our V7 measuring instruments overcome any lingering limitations
that may previously have affected the system - with the one exception that they
will not function on old V6 devices. These sensors, irrespective of the device's
quantities and ranges, operate as an autonomous measuring system with up to
10 channels covering completely new measurable variables, with all relevant
control functions, calculation functions, or compensation values, and ranges up
to 8 digits in size and at speeds of up to 1000 measuring operations per second
(mops). What is so special about this new generation is that, thanks to individ-
ual sampling rates, both quick and slower but high-resolution variables can now
very easily be measured and recorded together. Individual sensor functions can
be parametrized via a menu stored in the plug itself. To facilitate identification
the quantity abbreviations and units have been extended to 6 digits and channel
designation to 20 characters. This device has been specially conceived and de-
signed for digital sensors only. It can only be used therefore with digital stan-
dard sensors (DIGI, Freq, Inp) and with all new D6 and D7 sensors. What is
completely new on V7 devices is the channel numbering system. Sensors and
sockets are counted from 0 to 9; this is followed, after a decimal point, by the
channels, likewise counted from 0 to 9; i.e. the first sensor has channels 0.0 to
0.9, the second has 1.0 to 1.9, etc.
Programming and functioning are virtually identical for all units. The following
points apply to all devices in the ALM MO® measuring system; these are de-
scribed in detail in the ALM MO® Manual which is included in delivery with
each device:
- Detailed explanation of the ALM MO® system (Man., Chapt. 1)
- Overview of the device functions and measuring ranges (Man., Chapt. 2)
- Basic principles, operating instructions, and technical data for all sensors
(Man., Chapt. 3)
- Options for connecting your own existing sensors (Man., Chapt. 4)
- All analog and digital output modules (Man., Section 5.1)
- Interface modules RS232, USB, thernet, optic fiber (Man., Section 5.2)
- The whole ALM MO® networking system (Man., Section 5.3)
- All functions and their operation via the interface (Man., Chapt. 6)
10 ALM MO® 204