Mueller M2 Series User manual

User manual M2
Alternating voltage / Alternating current signal rms-value (TRMS)
0-300 VAC, 0-600 VAC, 0-1 AAC, 0-5 AAC
96x48
M2_14HGB.pdf update: 29.08.2013
Technical features:
• red display of -19999…99999 Digits (optional: green, orange, blue)
• installation depth: 70 mm without plug-in terminal
• min-/max-memory
• 30 adjustable supporting points
• display flashing at threshold value exceedance / undercut
• digital input for triggering of Hold, Tara
• permanent min/max value recording
• volume metering (totaliser)
• mathematical functions like reciprocal value, square roots, squaring or rounding
• setpoint generator
• sliding averaging
• brightness control
• programming interlock via access code
• protection class IP65 at the front
• pluggable screw terminal
• optional galvanic insulated digital input or analog output
• optional 2 relay outputs
• accessories: PC-based configuration kit PM-TOOL incl. CD and USB-adapter for devices without keypad
and for a simple adjustment of standard devices

Identification
M2-1VR5B.0004.570CD
AC current, AC voltage
Housing size: 96x48 mm
ORDER NUMBERSTANDARD-TYPES
Please state physical unit by order, e.g. A.
Options – breakdown of order code:
M2-1
V
R 5B.0H04.572CD
Basic type M2 Dimension
D physical unit
Installation depth
89mm incl. plug-in terminal 2 Version
CC
Housing size
B96xH48xT70 mm 1 Switching points
0 no switching point
Type of display 2 2 relay outputs
V, A V
Prot ection class
Display colour 1 without keypad,
Blue B operation at the back
Green G 7 IP65 / plug-in terminal
Red R
Yellow Y Voltage supply
4 115 VAC
Number of digits 5 230 VAC
5-di
g
it 5
Measuring input
Digit height 4 AC current / AC voltage, TRMS
14 mm B
Analog output
Digital input 0 without
without 0 X 0-10 VDC, 0/4-20 mA
one I
AC input
H600 VAC, 300 VAC, 5 AAC, 1AAC

Contents
1
1. Brief descirption 2
2. Assembly 3
3. Electrical connection 4
4. Description of function and operation 5
4.1. Programming software PM-TOOL 6
5. Setting up the device 7
5.1. Switching on 7
5.2. Standard parameterisation (flat operation level) 7
Value assignment for the triggering of the signal input
5.3. Programming interlock „RUN“ 10
Activation/Deactivation of the programming interlock or change into professional
or flat operation level
5.4. Extended parametersation (professional operation level) 11
5.4.1. Signal input parameters „INP“11
Value assignment for the triggering of the signal input incl. linearisation
5.4.2. General device parameters „FCT“14
Superior device functions like Hold, Tara, min/max permanent, setpoint value function /
nominal value function, averaging, brightness control, as well as the control of the digital input and
keyboard layout
5.4.3. Safety parameters „COD“19
Assignment of user and master code to lock or to receive access to defined parameter such as
analog output and alarms, etc
5.4.4. Analog parameters „Out“20
Analog outpur functions
5.4.5. Relay functions „rel“22
Parameter for setpoint definition
5.4.6. Alarm parameters „AL1…AL4“24
Actuator and dependencies of the alarms
5.4.7. Totaliser (Volume metering) „tot“26
Parameter for calculation of the sum function
6. Reset to factory settings 27
Reset parameters onto the delivery state
7. Alarms / Relays 28
Functional principle of the switching outputs
8. Sensor aligment 29
Diagram of functional sequences for sensors with existing adjustable resistor
9. Technical data 30
10. Safety advices 32
11. Error elimination 33

1. Brief description
2
1. Brief description
The panel meter instrument M2-14H is a 5-digit device for AC current / AC voltage signals (TRMS) and a
visual threshold value monitoring via the display. The configuration happens via four keys at the front or by
the optional PC software PM-TOOL. The integrated programming interlock prevents unrequested changes
of parameters and can be unlocked again with an individual code. Optional the following functions are
available: a digital input for triggering of Hold (Tara), aswell as one analog output for further evaluating in the
unit.
With help of the galvanic insulated setpoints (optional), free adjustable limit values can be controlled and
reported to a superior master display.
The electrical connection is done via plug-in terminals on the back side.
Selcetable functions like e.g. the recall of the min/max-value, an averaging of the measuring signals, a
nominal presetting or setpoint presetting, a direct threshold value regulation during operation mode and
further measuring setpoints for linearisation, complete the modern device concept.

2. Assembly
3
2. Assembly
Please read the Safety advice on page 32 before installation and keep this user manual for future reference.
1. After removing the fixing elements, insert the device.
2. Check the seal to make sure it fits securely.
3. Click the fixing elements back into place and tighten the clamping screws by hand. Then use a
screwdriver to tighten them another half a turn.
CAUTION! The torque should not exceed 0.1 Nm!
The dimension symbols can be exchanged before installation via a channel on the side!
Sealing
48,0
3,0
M2
Gap for physical unit
89,0

3. Electrical connection
4
3. Electrical connection
Type M2-1VR5B.0H04.470CD with a supply of 115 VAC
Type M2-1VR5B.0H04.570CD with a supply of 230 VAC

4. Description of function and operation
5
4. Description of function and operation
Operation
The operation is divided into three different levels.
Menu level (delivery status)
This level is for the standard settings of the device. Only menu items which are sufficent to set the device
into operation are displayed. To get into the professional level, run through the menu level and parameterise
“prof“ under menu item RUN.
Menu group level (complete function volume)
Suited for complex applications as e.g. linkage of alarms, setpoint treatment, totaliser function etc. In this
level function groups which allow an extended parameterisation of the standard settings are availabe. To
leave the menu group level, run through this level and parameterise „uloc„ under menu item RUN.
Parameterisation level:
Parameters deposited in the menu item can here be parameterised. Functions, that can be changed or
adjusted, are always signalised by a flashing of the display. Settings that are made in the parameterisation
level are confirmed with [P] and thus safed. By pressing the [O]-key („zero-key“) it leads to a break-off of
the value input and to a change into the menu level. All adjustments are safed automatically by the device
and changes into operating mode, if no further key operation is done within the next 10 seconds.
Keys for up and down navigation in the menu group level.
Change to menu level.
Change into menu level or break-off in value input.
Parameterisation
level Adjustment of the value / the setting.
Keys for up and down navigation in the menu level.
DescriptionKey
Change into operation mode or back into menu level.
To confirm the changes made at the parameterisation level.
Change into operation mode.
Change to parameterisation level and deposited values.
Menu group level
Menu level
Level

6
4. Description of function and operation
Function chart:
4.1 Parameterisation software PM-TOOL:
Part of the PM-TOOL are the software on CD and an USB-cable with device adapter. The connection is
done via a 4-pole micromatch-plug on the back side of the device, to the PC-side the connection ist done via
an USB plug.
System requirements: PC incl. USB interface
Software: Windows XP, Windows VISTA
With this tool the device configuration can be generated, omitted and safed on the PC. The parameters can
be changed via the easy to handle program surface, whereat the operating mode and the possible selection
options can be preset by the program.

7
5.1. Switching on
Once the installation is complete, you can start the device by applying the voltage supply. Before, check
once again that all electrical connections are correct.
Starting sequence
For 1 second during the switching-on process, the segment test (8 8 8 8 8) is displayed followed by an
indication of the software type and, after that, also for 1 second the software version. After the starting
sequence, the device switches to operation/display mode.
5.2. Standard parameterisation: (Flat operation level)
To parameterise the display, press the [P] key in operating mode for 1 second. The display then changes to
the menu level with the first menu item TYPE.
5. Setting up the device
5. Setting up the device
Setting the end value of the measuring range, END:
Default: 10000
Set the end value from the smallest to the highest digit with [▲] [▼] and confirm each digit with
[P]. A minus sign can only be parameterized on the highest value digit. After the last digit, the
display switches back to the menu level. If a sensor calibration was selected as input option,
you can only select between noca and cal.With noca, only the previously set display value is
taken over, and with cal, the device takes over both the display value and the analogue input
value.
Setting the start/offset value of the measuring range, offs:
Default: 0
Enter the start/offset value from the smallest to the highest digit with [▲] [▼] and confirm each
digit with [P]. After the last digit the display switches back to the menu level. If a sensor
calibration was selected as input option, you can only select between noca and cal.With noca,
only the previously set display value is taken over, and with cal, the device takes over both the
display value and the analogue input value.
Selection of the input signal, tYPE:
Default: s.600u
There are several measuring input options: 0-600/-300 VAC or 0-5/-1 AAC signals as works
calibration (without application of the sensor signal) and S.600v, S.300v, se.5a and se.1a as sensor
calibration (with the sensor applied). Confirm the selection with [P] and the display switches
back to menu level.
Parameterisation levelMenu level

8
5. Setting up the device
Setting up the initial value of the analog output, Out.OF:
Default: 00000
The final value is adjusted from the smallest digit to the highest digit with [▲] [▼]and digit by
digit confirmed with [P]. A minus sign can only be parameterised on the highest digit. After the
last digit, the device changes back into menu level.
Setting up the final value of the analog output, Out.En:
Default: 10000
The final value is adjusted from the smallest digit to the highest digit with [▲] [▼]and digit by
digit confirmed with [P]. A minus sign can only be parameterised on the highest digit. After the
last digit, the device changes back into menu level.
Threshold values / Limits, LI-1:
Default: 2000
This value defines the threshold, that activates/deactivates an alarm.
Selection of analog output, Out.rA:
Default: 4-20
Three output signals are available: 0-10 VDC, 0-20 mA and 4-20 mA, with this function, the
demanded signal is selected.
Setting up the display time, SEC:
Default: 1.0
The display time is set with [▲] [▼]. The display moves up in increments of 0.1 sec up to 1 sec
and in increments of 1.0 sec up to 10.0 sec. Confirm the selection by pressing the [P] button.
The display then switches back to the menu level again.
Setting the decimal point, dot:
Default: 0
The decimal point on the display can be moved with [▲] [▼] and confirmed with [P]. The
display then switches back to the menu level again.
Parameterisation levelMenu level
then

9
5. Setting up the device
User code (4-digit number-combination, free available), U.CodE:
Default: 0000
If this code was set (>0000), all parameters are locked for the user, if LOC has been selected
before under menu item run. By pressing [P] for 3 seconds in operation mode, the display
shows COde. The U.Code needs to be entered to get to the reduced number of parameter sets.
The code has to be entered befor each parametrisation, until the A.Code (Master code) unlocks
all parameters again.
The same applies to LI-2 !
Function for threshold value undercut /exceedance, Fu-1:
Default: high
A limit value undercut is selected with Louu (for LOW = lower limit value), a limit value
exceedance with High (for HIGH = higher limit value). If e.g. limit value 1 is on a threshold level
of 100 and allocated with function High, an alarm is activated by reaching of the threshold level.
If the threshold value was allocated to Low, an alarm will be activated by undercutting the
threshold value, as long as the hysteresis is zero.
Master code (4-digit number-combination, free available), A.CodE:
Default: 1234
All parameters can be unlocked with this code, after LOC has been activated under menu item
run. By pressing [P] for 3 seconds in operation mode, the display shows COde and enables the
user to reach all parametes by entering the A.codE. Under run the parameteisation can be
activated permanently by selecting ULOC or ProF, thus at an anew pushing of [P] in operation
mode, the code needs not to be entered again.
Hysteresis for limit values, HY-1:
Default: 00000
The delayed reaction of the alarm is the difference to the threshold value, which is defined by
the hysteresis.
Parameterisation levelMenu level

10
5. Setting up the device
Activation / deactivation of the programming lock or completion of the standard
parameterisation with change into menu group level (complete function range), run:
Default: uloc
With the navigation keys [▲] [▼], you can choose between the deactivated key lock Uloc
(works setting) and the activated key lock Loc, or the change into the menu group level ProF.
Confirm the selection with [P]. After this, the display confirms the settings with "-----", and
automatically switches to operating mode. If Loc was selected, the keyboard is locked. To get
back into the menu level, press [P] for 3 seconds in operating mode. Now enter the CODE (works
setting 1 2 3 4) that appears using [▲] [▼] plus [P] to unlock the keyboard. FAIL appears if the
input is wrong. To parameterise further functions ProF needs to be set. The device confirms this
setting with „-----„and changes automatically in operation mode. By pressing [P] for approx.
3 seconds in operation mode, the first menu group InP is shown in the display and thus confirms
the change into the extended parameterisation. It stays activated as long as ULOC or LOC is
entered in menu group RUN.
Parameterisation levelMenu level
5.3. Programming interlock „RUN“

5. Setting up the device
11
5.4. Extended parameterisation (Professional operation level)
Menu group level
Menu level
5.4.1. Signal input parameters
Setting the end value of the measuring range, END:
Default: 10000
Set the end value from the smallest to the highest digit with [▲] [▼] and confirm each digit with
[P]. A minus sign can only be parameterized on the highest value digit. After the last digit, the
display switches back to the menu level. If a sensor calibration was selected as input option,
you can only select between noca and cal.With noca, only the previously set display value is
taken over, and with cal, the device takes over both the display value and the analogue input
value.
Setting up the start/offset value of the measuring range, offs:
Default: 0
Enter the start/offset value from the smallest to the highest digit with [▲] [▼] and confirm each
digit with [P]. After the last digit the display switches back to the menu level. If a sensor
calibration was selected as input option, you can only select between noca and cal.With noca,
only the previously set display value is taken over, and with cal, the device takes over both the
display value and the analogue input value.
Selection of the input signal, tYPE:
Default: s.600u
There are several measuring input options: 0-600/-300 VAC or 0-5/-1 AAC signals as works
calibration (without application of the sensor signal) and S.600v, S.300v, se.5a and se.1a as sensor
calibration (with the sensor applied). Confirm the selection with [P] and the display switches
back to menu level.
Parameterisation levelMenu level

12
5. Setting up the device
Setting up the tare/offset value, tArA:
Default: 0
The given value is added to the linearized value. In this way, the characteristic line can be
shifted by the selected amount.
Setting up the balance point, Adj.pt:
Default: 08000
The balance point for the final value can be chosen from the measuring range by S.300 with
0…300 V or Se.iA with 0…1 A in %. The preset 80.000% result from the widespread detuning of
the melt pressure sensors.
Rescaling the measuring input values, OFFA:
Default: 0
With this function, you can rescale the input value of e.g. 0.1 AAC (works setting) without
applying a measuring signal. If sensor calibration has been selected, these parameters are not
available.
Rescaling the measuring input values, EndA:
Default: 10000
With this function, you can rescale the input value of e.g. 4.9 AAC (works setting) without
applying a measuring signal. If sensor calibration has been selected, these parameters are not
available.
Setting up the display time, SEC:
Default: 1.0
The display time is set with [▲] [▼]. The display moves up in increments of 0.1 sec up to 1 sec
and in increments of 1.0 sec up to 10.0 sec. Confirm the selection by pressing the [P] button.
The display then switches back to the menu level again.
Setting the decimal point, dot:
Default: 0
The decimal point on the display can be moved with [▲] [▼] and confirmed with [P]. The
display then switches back to the menu level again.
Parameterisation levelMenu level
then

5. Setting up the device
13
Device undercut, dI.Und:
Default: -i9999
With this function the device undercut (_ _ _ _ _) can be defined on a definite value.
Analog values for setpoints, InP.01 … InP.30:
The setpoints are always preset according to the selected input signal A/V. The desired analog
values can be freely parameterised in ascending order.
Display values for setpoints, dIS.01 … dIS.30:
Under this parameter setpoints are defined according to their value. At the sensor calibration,
like at Endwert/Offset, one is asked at the end if a calibration shall be activated.
Number of additional setpoints, SPCt:
Default: 00
30 additional setpoints can be defined to the initial- and final value, so linear sensor values are
not linearised. Only activated setpoint parameters are displayed.
Setting up the physical unit, UnIt:
Default: no
One can choose between the above shown physical units. It will be displayed on the 5th digit of
the display.
Parameterisation levelMenu level

5. Setting up the device
14
Display overflow, dI.OUE:
Default: 99999
With this function the display overflow (_ _ _ _ _) can be defined on a definite value.
Back to menu group level, rEt:
With [P] the selection is confirmed and the device changes into menu group level „–INP-“.
Parameterisation levelMenu level
5.4.2. General device parameters
Display time, DISEC:
Default: 01.0
The display is set up with [▲] [▼]. Thereby it switches up to 1 second in increments of 0.1
seconds and up to 10.0 seconds in increments of 1.0. With [P] the selection is confirmed and
the device changes into menu level.
Rounding of display values, round:
Default: 00001
This function is for instable display values, where the display value is changed in
increments of 1, 5, 10 or 50. This does not affect the resolution of the optional outputs. With [P]
the selection is confirmed and the device changes into menu level.
Parameterisation levelMenu level
Menu group level
Menu level
then

5. Setting up the device
15
Arithmetic, ArItH:
Default: n0
With this function the calculated value, not the measuring value, is shown in the display. With
no, no calulation is deposited. With [P] the selection is confirmed and the device changes into
menu level.
Minimum constant value, con.mi:
Default: -i9999
The minimum constant value is adjusted from the smallest to the highest digit with the
navigation keys [▲] [▼] and confirmed digit per digit with [P]. A minus sign can only be
adjusted on the highest digit. After the last digit the display changes back into menu level.
Definite contstant value, const:
Default: 0
The constant value can be evaluated via the alarms or via the analog output, like the current
measurand. The decimal place cannot be changed for this value and is taken over by the
current measurand. Like this a setpoint generator can be realised via the analog output by this
value. Furthermore it can be used for calculating the difference. At this the constant value is
substracted from the current measurand and the difference is evaluated in the alerting or by the
analog output. Thus regulations can be displayed quite easily.
Zero point slowdown, ZErO:
Default: 00
At the zero point slowdown, a value range around the zero point can be preset, so the display
shows a zero. If e.g. a 10 is set, the display would show a zero in the value range from -10 to
+10; below continue with -11 and beyond with +11. The maximum adjustable range of value is
99.
Sliding average determination, AVG:
Default: 1.0
Here, the number of the meterings that need to be averaged is preset. The time of averaging
results of the product of measuring time SEC and the averaged metering AVG. With the selection
of AVG in the menu level DISPL, the result will be shown in the display and evaluated via the
alarms.
Parameterisation levelMenu level
Reciprocal Root
extraction
Square

5. Setting up the device
16
Maximum constant value, con.ma:
Default: 99999
The maximum constant value is adjusted from the smallest to the highest digit with the
navigation keys [▲] [▼] and confirmed digit per digit with [P]. A minus sign can only be
adjusted on the highest digit. After the last digit the display changes back into menu level.
Display flashing, FLASH:
Default: no
A display flashing can be added as additional alarm function either to single or to a combination
of off-limit condition. With no, no flashing is allocated.
Brightness control, Light:
Default: 10
The brightness of the display can be adjusted in 16 levels from 00 = very dark to 15 = very
bright via this parameter or alternatively via the navigation keys from the outside. During the
start of the device the level that is deposited under this parameter will always be used, even
though the brightness has been changed via the navigation keys in the meantime.
Display, dISPL:
Default: actua
With this function the current measuring value, Min-/Max value, totaliser value or the process-
controlled Hold-value can be allocated to the display. With [P] the selection is confirmed and
the device changes into menu level.
Parameterisation levelMenu level

5. Setting up the device
17
Assignment (deposit) of key functions, tASt:
Default: no
For the operation mode, special functions can be deposited on the navigation keys [▲] [▼], in
particular this function is made for devices in housing size 48x24 mm which do not have a 4th
key ([O] key). If the min-/max-memory is activated with EHtr, all measured min/max-values are
safed during operation and can be recalled via the navigation keys. The values get lost by re-
start of the device. If the threshold value correction LI.12 or LI.34 is choosen, the values of the
threshold can be changed during operation without disturbing the operating procedure. With
tArA the device is tared to zero and safed permanently as offset. The device confirms the
correct taring by showing ooooo in the display. Set.tA switches into the offset value and can be
changed via the navigation keys [▲] [▼]. Via totAL the current value of the totaliser can be
displayed, after this the device changes back on the parameterised display value. If tot.rE is
deposited, the totaliser can be set back by pressing of the navigation keys [▲] [▼], the device
acknowledges this with ooooo in the display. The configuration of EHt.rE deletes the Min-/Max-
memory. Under ActuA the measurand is shown, after this the display returns to the
parameterised display value. If AbS.UA (absolute value) was selected, the display shows the
value that has been measured since voltage connection, without consideration of a previous
taring. Via selection L1.1, L1.1-2, li.1-3, l1.1-4 threshold values can be adressed via the navigation
keys; they can be changed digit per digit or taken over by pushing the [P]-key. The adjustment
is taken over directly, an excisting limit value monitoring and the current measurement will not
be influenced by this. If no is selected, the navigation keys are without any function in the
operation mode.
Parameterisation levelMenu level

5. Setting up the device
18
Special function digital input, dIG.In:
Default: no
In operation mode, the above shown parameter can be laid on the optional digital input, too.
Function description see tASt.4.
Back to menu group level, rEt:
With [P] the selection is confirmed and the device changes into menu group level „– fct –“.
Special function [O]-key, tASt.4:
Default: no
For the operation mode, special functions can be deposited on the [O]-Taste. This function is
activated by pressing the key. With tArA the device is set temporarily on a parameterised value.
The device acknowledges the correct taring with oo0oo in the display. Set.tA adds a defined
value on to the currently displayed value. Via totAL the current value of the totaliser can be
displayed, after this the device switches back on the parameterised display value. If tot.rE is
deposited, the totaliser can be set back by pressing the navigation keys [▲] [▼], the device
acknowledges this with ooooo in the display. EHt.rE deletes the min/max-memory. If HOLD has
been selected, the moment can be hold constant by pressing the [O]-key, and is updated by
releasing the key. Advice: Hold is activated only, if HOLD is selected under parameter DISPL.
ActuA shows the measuring value, after this the device switches back on the parameterised
display value. The same goes for AVG, here the sliding average values will be displayed. A
sensor calibration is done by triggering of the digital input via se.cal, the flow diagram is shown
in Chapter 8. The constant value const can be recalled via the digital input, or changed digit
per digit. At AL-1…AL-4 an output can be set and therewith e.g. a setpoint adjustment can be
done. If no is selected, the [O]-key is without any function in the operation mode.
Parameterisation levelMenu level
…
…