montwill M3 Series User manual

User manual M3
Direct voltage signals shunt 0-60/150/300/1000 mV
48x24
M3_72GB.pdf update: 28.05.2020
Technical features:
• red display of -19999…99999 digits (optional: green, orange or blue display)
• minimal installation depth: 90 mm without plug-in screw terminal
• min/max-memory
• 30 additional adjustable supporting points
• display flashing at threshold exceedance/ threshold undercut
• navigation keys for actuation of Hold, Tara
• permanent min/max-value recording
• volume metering (totaliser)
• mathematic functions like reciprocal value, square root, squaring or rounding
• setpoint generator
• sliding average determination
• brightness control
• programming interlock via access code
• protection class IP65 at the front side
• plug-in screw terminal
• optional: 2 PhotoMos outputs
• optional: analog output or galvanic isolated digital input
• accessories: PC-based configuration-kit PM-TOOL with CD & USB-adapter for devices without
keypad and for a simple adjustment of standard devices

Identification
STANDARD TYPES ORDER NUMBER
Direct voltage signals shunt
Housing size: 48x24 mm
M3-7VR5A.0002.S70xD
M3-7VR5A.0002.770xD
Please state physical unit by order, e.g. A
Options – breakdown of order code:
M 3- 7 V R 5 B. 0 0 0 2. 7 7 0 x D
Basic type M-Line Dimension
D physical unit
Installation depth
120 mm, 3 Version
incl. plug-in terminal x internal version
Housing size Switching points
B48xH24xD90 mm 7 0 no switching points
22 PhotoMos-outputs
Display type
V, A V Protection class
1 without keypad,
Display colour operation via PM-TOOL
Blue B 7 IP65 / plug-in terminal
Green G
Red R Voltage supply
Orange Y 7 24 VDC galv. isolated
S 100-240 VAC
Number of digits
5-digit 5 Measuring input
2 Shunt
Digit height
10 mm A Analog output
0 without
Digital input X 0-10 VDC, 0/4-20 mA
without 0
1 digital input I Sensor supply
0without

Contents
1
1. Brief description 2
2. Assembly 2
3. Electrical connection 3
4. Functions and operation description 4
4.1. Programming software PM-TOOL 5
5. Setting up the device 6
5.1. Switching on 6
5.2. Standard parameterisation (flat operation level) 6
Value assigment for triggering of the signal input
5.3. Programming interlock 9
Activation/deactivation of the programming interlock or change into the professional level
respectively back into the flat operation level
5.4. Extended parameterisation (professional operation level) 9
5.4.1. Signal input parameter „ “ 9
Value assigment for triggering of the signal input incl. linearisation
5.4.2. General device parameter „ “ 12
Superior device functions like Hold, Tara, min/max-permanent, setpoint function respectively
nominal value function, average determination, brightness control, as well as the control of the
digital input and the keyboard configuration
5.4.3. Safety parameter „ “ 16
Assignment of user and master code for locking or access to certain
parameters like e.g. analog output and alarms, etc.
5.4.4. Analog output parameter „ “ 17
Analog output functions
5.4.5. Relay functions „ “ 19
Parameter for the definition of the setpoints
5.4.6. Alarm parameter „ “ 21
Activator and dependencies of the alarms
5.4.7. Totaliser (Volume metering) „ “ 23
Parameter for calculation of the sum function
6. Reset to factory settings 24
Reset of the parameter to the factory default settings
7. Alarms / Relays 25
Function principle of the switching outputs
8. Sensor alignment 26
Function diagram for sensors with existing trimming resistor
9. Technical data 27
10. Safety advices 29
11. Error elimination 30

2
1. Brief description / 2. Assembly
1. Brief description
The panel meter M3-72 is a 5-digit device for direct voltage signals and a visual threshold value monitoring via
the display. The configuration happens via 4 front keys or via the optional PC software PM-TOOL. An
integrated programming interlock prevents unrequested changes of the parameters and can be released again
by an individual code. Optional the following functions are available: a supply for the sensor, a digital input for
triggering of Hold (Tara) or an analog output for further processing in the equipment.
By use of the two optional galvanic isolated setpoints, free adjustable threshold values can be controlled and
reported to a superior master display.The electrical connection is carried out on the back side via plug-in
terminals.
Selectable functions like e.g. the request of the min/max-value, an average determination of the measuring
signals, a nominal preset respectively setpoint preset, a direct change of threshold value in operation mode
and additional measuring supporting points for linearisation complete the modern device concept.
2. Assembly
Sealing
48,0
24,0
3,0
Gap for physical dimension
120 mm
Installation depth incl. connection terminals
Please read the Safety advices on page 29 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!
Change signs of the physical unit before assembly via a channel at the side of the front!
The change can only be done from the outside before assembly!

3. Electrical connection
3
3. Electrical connection
Type M3-7VR5A.0002.S70xD
supply of 100-240 VAC
Type M3-7VR5A.0002.770xD
supply of 24 VDC

4
4. Functions and operation description
Level Key Description
Menu level
Change to parameterisation level and deposited values.
Keys for up and down navigation in the menu level.
Change into operation mode by pushing both navigation keys at the
same time.
Parameterisation
level
To confirm the changes made at the parameterisation level.
Adjustment of the value / the setting.
Change into menu level or stop of the value input, by pushing both
navigation keys at the same time.
Menu group level
Change to menu level
Keys for up and down navigation in the menu group level.
Change into operation mode or return into menu level, by pushing
both navigation keys at the same time.
4. Functions and operation description
Operation
The operation is divided into three different levels.
Menu level (delivery status)
The menu level is for the standard settings of the device. Only menu items which are sufficient to set the
device into operation are displayed. To get into the professional level, run through the menu level and
parameterise under menu item .
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 under menu item .
Parameterisation level:
Parameter 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 saved. Pressing the [O]-key („zero-key“) 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 it
changes into operating mode, if no further key operation is done within the next 10 seconds.

5
4. Functions and operation description
4.1 Parameterisation software PM-TOOL:
Included in the delivery of the PM-TOOL are the software on CD and an USB-cable with device adapter. The
connection happens via a 4-pole micromatch-plug on the back side of the device, to the PC-side the
connection happens 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.
Function chart:

6
5. Setting up the device
Menu level Parameterisation level
Selection of the input signal,
Default:
There are several measuring input options: 60, 150, 600 or 1000 mV signals are available as
works calibration (without application of the sensor signal) and as sensor calibration (with the
sensor applied). Confirm the selection with [P] and the display switches back to menu level.
Setting the end value of the measuring range, :
Default:
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 leftmost digit. After the last digit, the display
switches back to the menu level. If was selected as input option, one can only select
between and With , only the previously set display value is taken over, and with
, the device takes over both the display value and the analog input value.
Setting the start/offset value of the measuring range, :
Default:
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 was
selected as input option, one can only select between and With , only the
previously set display value is taken over, and with , the device takes over both the display
value and the analog input value.
Setting the decimal point, :
Default:
The decimal point on the display can be moved with [▲] [▼] and confirmed with [P]. The
display then switches back to the menu level again.
5.1. Switching on
Once the installation is complete, 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 ( ) 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 .
5. Setting up the device

7
5. Setting up the device
Menu level Parameterisation level
Setting up the display time, :
Default:
The display time is set with [▲] [▼]. The display moves up in increments of 0.1 up to 1 second
and in increments of 1.0 up to 10.0 seconds. Confirm the selection by pressing the [P] button.
The display then switches back to the menu level again.
Selection of analog output,
Default:
Available are 3 output signals: 0-10 VDC, 0-20 mA and 4-20 mA, with this function, the
demanded signal is selected.
Setting up the final value of the analog output,
Default:
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 leftmost digit. After the
last digit, the device changes back into menu level.
Setting up the initial value of the analog output,
Default:
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 leftmost digit. After the
last digit, the device changes back into menu level.
Threshold values / limits,
Default:
This value defines the threshold, that activates/deactivates an alarm.
Hysteresis for limit values,
Default:
The delayed reaction of the alarm is the difference to the threshold value, which is defined by
the hysteresis.
then

8
5. Setting up the device
Menu level Parameterisation level
Function for threshold value undercut / exceedance,
Default:
A limit value undercut is selected with (for LOW = lower limit value), a limit value
exceedance with (for HIGH = higher limit value). If e.g. limit value 1 is on a threshold level
of 100 and allocated with function , an alarm is activated by reaching of the threshold level.
If the threshold value was allocated to an alarm will be activated by undercutting the
threshold value, as long as the hysteresis is zero.
Threshold values / limits,
Default:
This value defines the threshold, that activates/deactivates an alarm.
Hysteresis for limit values,
Default:
The delayed reaction of the alarm is the difference to the threshold value, which is defined by
the hysteresis.
Function for threshold value undercut / exceedance,
Default:
A limit value undercut is selected with (for LOW = lower limit value), a limit value
exceedance with (for HIGH = higher limit value). If e.g. limit value 1 is on a threshold level
of 100 and allocated with function , an alarm is activated by reaching of the threshold level.
If the threshold value was allocated to an alarm will be activated by undercutting the
threshold value, as long as the hysteresis is zero.
User code (4-digit number-combination, free available), :
Default:
If this code was set (>0000), all parameters are locked for the user, if has been selected
before under menu item . By pressing [P] for 3 seconds in operation mode, the display
shows . The needs to be entered to get to the reduced number of parameter sets.
The code has to be entered befor each parameterisation, until the (Master code)
releases all parameters again.

9
5. Setting up the device
Menu level Parameterisation level
Master code (4-digit number-combination, free available), :
Default:
All parameters can be unlocked with this code, after has been activated under menu item
. By pressing [P] for 3 seconds in operation mode, the display shows and enables the
user to reach all parameters by entering the . Under the parameterisation can be
activated permanently by selecting or , thus at an anew pushing of [P] in operation
mode, the code needs not to be entered again.
5.3. Programming interlock „ “
Activation / deactivation of the programming lock or completion of the standard
parameterisation with change into menu group level (complete function range),
Default:
With the navigation keys [▲] [▼], choose between the deactivated key lock (works
setting) and the activated key lock , or the change into the menu group level . Confirm
the selection with [P]. After this, the display confirms the settings with "and automatically
switches to operating mode. If was selected, the keyboard is locked. To get back into the
menu level, press [P] for 3 seconds in operating mode. Now enter the (works setting
) that appears using [▲] [▼] plus [P] to unlock the keyboard. appears if the input is
wrong. To parameterise further functions 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 is shown in the display and thus confirms
the change into the extended parameterisation. It stays activated as long as or is
entered in menu group .
5.4. Extended parameterisation (Professional operation level)
Menu level Parameterisation level
Selection of the input signal,
Default:
There are several measuring input options: 60, 150, 600 or 1000 mV signals are available as
works calibration (without application of the sensor signal) and as sensor calibration (with
the sensor applied). Confirm the selection with [P] and the display switches back to menu level.
Menu group level
Menu level
5.4.1. Signal input parameters

5. Setting up the device
10
Menu level Parameterisation level
Setting the end value of the measuring range, :
Default:
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 leftmost digit. After the last digit, the
display switches back to the menu level. If was selected as input option, one can only
select between and With , only the previously set display value is taken over, and
with , the device takes over both the display value and the analog input value.
Setting the start/offset value of the measuring range, :
Default:
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 was
selected as input option, one can only select between and With , only the
previously set display value is taken over, and with , the device takes over both the display
value and the analog input value.
Setting the decimal point, :
Default:
The decimal point on the display can be moved with [▲] [▼] and confirmed with [P]. The
display then switches back to the menu level again.
Setting up the display time, :
Default:
The display time is set with [▲] [▼]. The display moves up in increments of 0.1 up to 1 second
and in increments of 1.0 up to 10.0 seconds. Confirm the selection by pressing the [P] button.
The display then switches back to the menu level again.
Rescaling the measuring input values,
Default:
With this function, rescale the input value of e.g. 19.5 mA (works setting) without applying a
measuring signal. If sensor calibration has been selected, these parameters are not available.
Rescaling the measuring input values,
Default:
With this function, rescale the input value of e.g. 3.5 mA (works setting) without applying a
measuring signal. If sensor calibration has been selected, these parameters are not available.
then

5. Setting up the device
11
Menu level Parameterisation level
Setting up the tare/offset value,
Default:
The given value is added to the linerarized value. In this way, the characteristic line can be
shifted by the selected amount.
Setting up the balance point,
Default:
The balance point for the final value can be chosen from the measuring range by with
0…10 V or with 0…20 mA in %. The preset 80.000% result from the widespread
detuning of the melt pressure sensors.
Setting up the physical unit,
Default:
One can choose between the above shown physical units. It will be displayed on the 5th digit of
the display.
Number of additional setpoints,
Default:
30 additional setpoints can be defined to the initial value and final value, so linear sensor
values are not linearised. Only activated setpoint parameters are displayed.
Display values for setpoints,
Under this parameter setpoints are defined according to their value. At the sensor calibration,
like at final value/offset, one is asked at the end if a calibration shall be activated.
Analog values for setpoints,
The setpoints are always set according to the selected input signal. The desired analog values
can be freely parameterised in ascending order.

12
5. Setting up the device
Menu level Parameterisation level
Device undercut,
Default:
With this function the device undercut ( ) can be defined on a definite value. Exception is
input type 4-20 mA, it already shows undercut at a signal <1 mA, so a sensor failure is marked.
Display overflow,
Default:
With this function the display overflow ( ) can be defined on a definite value.
Back to menu group level,
With [P] the selection is confirmed and the device changes into menu group level .
5.4.2. General device parameters
Menu level Parameterisation level
Display time,
Default:
The display is set up with [▲] [▼]. Thereby it switches until 1 second in increments of 0.1
seconds and until 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,
Default:
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.
Menu group level
Menu level
then

5. Setting up the device
13
Menu level Parameterisation level
Arithmetic,
Default:
With this function the calculated value, not the measuring value, is shown in the display.
Calculation types
rEZIP = (Final value*Final value)/Display value
rAdiC = Root(Display value*Final value)
SqUAr = (Display value)²/Final value
Advice: The denominator of fractions should not be 0 because a division by 0 is not possible. It
creates an undefined state and the display goes into the overflow. With , no calculation is
deposited. With [P] the selection is confirmed and the device changes into menu level.
Sliding average determination,
Default:
Under this menu item, the number of measurements that need to be averaged are preset. The
averaging time results from the product of measuring time and the averaged measurements
. With selection of in menu level the result is shown in the display and evaluated
when entered in the alarm or the analog output .
Zero point slowdown,
Default:
At the zero point slowdown, a value range around the zero point can be preset, so the display
shows a zero. If e.g. 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.
Solid contstant value, :
Default:
The constant value can be evaluated like the current measurand via the alarms or the analog
output. The decimal place cannot be changed for this value and is taken over from the current
measurand. So, with this value a setpoint generator can be realised via the analog output.
Furthermore it can be used as calculated difference. At this the constant value needs to be
subtracted from the current measurand and the difference is evaluated in the alerting or via the
analog output. Thus regulation can be displayed quite easy with this parameterisation.
Minimum constant value, :
Default:
The minimum constant value is selected and adjusted from the smallest to the highest digit with
[▲] [▼]and confirmed digit per digit with [P]. A minus sign can only be adjusted on the
leftmost digit. After the last digit the display changes back into menu level.
Reciprocal
value
Square root Square

5. Setting up the device
14
Menu level Parameterisation level
Default:
The maximum constant value is selected and adjusted from the smallest to the highest digit
with [▲] [▼]and confirmed digit per digit with [P]. A minus sign can only be adjusted on the
leftmost digit. After the last digit the display changes back into menu level.
Display,
Default:
With this function the current measuring value, the min/max-value, the totaliser, the process-
controlled hold-value, the sliding average value, the constant value or the difference between
constant value and current value can be allocated to the display. With [P] the selection is
confirmed and the device changes into menu level.
Brightness control, :
Default:
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 flashing,
Default:
A display flashing can be added as additional alarm function either to single or to a combination
of off-limit condition. With , no flashing is allocated.

5. Setting up the device
15
Menu level Parameterisation level
Assignment (deposit) of key functions,
Default:
For operation mode, special functions can be deposited on the navigation keys [▲] [▼], in
particular this function is made for devices in housing size 48x24mm which do not have a
4th key ([O]-key). If the min/max-memory was activated with , all measured min/max-values
are saved during operation and can be recalled via the navigation keys. The values get lost by
restart of the device. If the threshold value correction or is choosen, the values of the
threshold can be changed during operation without disturbing the operating procedure. With
the device is set temporarily on a parameterised value. The device acknowledges the
correct taring with showing . switches into the offset value and can be adjusted via
the navigation keys. Via the current value of the totaliser can be displayed for approx. 7
sec, then the device switches back on the parameterised display value. If is deposited,
the totaliser can be set back by pressing the navigation keys [▲] [▼], the device
acknowledges this with showing . By allocation on the min/max-memory is deleted.
At the measuring value is shown for approx. 7 sec, after this the device switches back on
the parameterised display value. With the brightness of the display is adjusted. This
setting is not saved and gets lost at a restart fo the device. Via selection , , ,
threshold values can be addressed 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 was selected,
the navigation keys are without any function in the operation mode.
Special function digital input,
Default:
With the device is set temporarily on a parameterised value. The device acknowledges the
correct taring with showing . switches into the offset value and can be changed via
the navigation keys. Via the current value of the totaliser can be displayed for approx. 7
sec, after this the device switches back on the parameterised display value. If is de-
posited, the totaliser can be set back by pressing the navigation keys, the device acknowledges
this with showing . deletes the min/max-memory. If has been selected, the
moment can be hold constant by triggering the digital input, and is updated by releasing the
key. Advice: can only be activated, if was selected under parameter .
shows the measuring value for approx. 7 sec, after this the device switches back on the para-
meterised display value. The same applies to , here the sliding average value is displayed.
…

5. Setting up the device
16
Menu level Parameterisation level
Continuation Special function digital input,
Default:
A sensor calibration is done by triggering of the digital input via , the flow diagram is
shown in Chapter 8. The constant value can be recalled via the digital input, or changed
digit per digit. At there can be set an output and therewith e.g. a setpoint adjustment
can be done. If was selected, the digital input is without any function in the operation mode.
Back to menu group level, :
With [P] the selection is confirmed and the device changes into menu group level .
…
Menu level Parameterisation level
User code
Default:
Via this code, reduced sets of parameters can released. A change of the can be done via
the correct input of the (master code).
Master code, :
Default:
By entering the device will be unlocked and all parameters are released.
Menu group level
5.4.3. Safety parameters
Menu level

5. Setting up the device
17
Menu level Parameterisation level
Release/lock analog output parameters,
Default:
Analog output parameters can be locked or released for the user:
- the initial or final value can be changed in operation mode
- the output signal can be changed from e.g. 0-20 mA to 4-20 mA or 0-10 VDC
- analog output parameters are released
- all analog output parameters are locked
Release/lock alarm parameters,
Default:
This parameter describes the user release/user lock of the alarm:
: here only the range of value of the threshold values 1-4 can be changed
- : here the range of value and the alarm trigger can be changed
- all alarm parameters are released
- all alarm parameters are locked
Back to menu group level, :
With [P] the selection is confirmed and the device changes into menu group level .
Menu group level
5.4.4. Analog output parameters
Menu level
Menu level Parameterisation level
Selection reference analog output,
Default:
The analog output signal can refer to different functions, in detail this are the current
measurand, min-value, max-value or totaliser-/sum-function, the sliding average value, the
constant value or the difference between the current value and the constant value. If was
selected the signal of the analog output will be hold and processed just after deactivation of
. With [P] the selection is confirmed and the device changes into menu level.

5. Setting up the device
18
Menu level Parameterisation level
Selection analog output,
Default:
Available are 3 output signals: 0-10 VDC, 0-20 mA and 4-20 mA. With this function the
demanded signal can be selected.
Setting up the final value of the analog output,
Default:
The final value can be adjusted from the smallest to the largest digit with [▲] [▼]. 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.
Setting the initial value of the analog output,
Default:
The initial value is adjusted from the smallest to the highest digit with [▲] [▼] and confirmed
digit per digit with [P]. A minus sign can only be parameterized on the leftmost digit. After the
last digit the device changes back into menu level.
Overflow behaviour,
Default:
To recognise and evaluate faulty signals, e.g. by a controller, the overflow behaviour of the
analog output can be defined. As overflow can be seen either , that means the analog
output runs on the set limits e.g. 4 and 20 mA, or (input value smaller than initial value,
analog output switches on e.g. 4 mA), (higher than final value, analog output switches on
e.g. 20 mA). If or is set, the analog output switches on the least significant or
leftmost possible binary value. This means that values of e.g. 0 mA, 0 VDC or values higher
than 20 mA or 10 VDC can be reached. With [P] the selection is confirmed and the device
changes into menu level.
Back to menu group level, :
With [P] the selection is confirmed and the device changes into menu group level .