montwill M2 Series User manual

Technical features:
• red display of -19999…99999 Digits (optional: green, orange or blue display)
• minimal installation depth: 70 mm without plug-in screw terminal
• min/max-memory
• 30 additional adjustable supporting points
• display flashing at threshold value exceedance / threshold value undercut
• zero-key for triggering 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 relay outputs
• optional: sensor supply or analog output
• optional: 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
User manual M2
Direct voltage / direct current 0-20 mA, 4-20 mA, 0-10 VDC
96x48M2_11GB.pdf update: 20.05.2020

Identification
STANDARD-TYPES ORDER NUMBER
Direct current, direct voltage
Housing size: 96x48 mm
M2-1VR5B.0001.570xD
M2-1VR5B.0001.670xD
Please state physical unit by order, e.g. m/min.
Options – breakdown order code:
M 2- 1 V R 5 B. 0 0 0 1. 6 7 2 x D
Basic type M2 Dimension
D physical unit
Installation depth
89 mm, 2Version
incl. plug-in terminal x internal version
Housing size Switching points
B96xH48xD70 mm 1 0 no switching points
2 2 relay outputs
Type of display
V, A VProtection class
1 without keypad,
Display colour operation via PM-TOOL
Blue B 7 IP65 / plug-in terminal
Green G
Red RVoltage supply
Orange Y 4 115 VAC
5 230 VAC
Number of digits 6 10-30 VDC galv. isolated
5-digit 5
Measuring input
Digit height 1 Direct current/voltage
14 mm B
Analog output
Digital input 0 without
without 0 X 0-10 VDC, 0/4-20 mA
one I
Sensor supply
0 without
2 10 VDC / 20 mA
3 24 VDC / 50 mA

Contents
1. Brief description 1
2. Assembly 2
3. Electrical connection 3
4. Functions and operation description 6
4.1. Programming software PM-TOOL 7
5. Setting up the device 8
5.1. Switching on 8
5.2. Standard parameterisation (flat operation level) 8
Value assigment for triggering of the signal input
5.3. Programming interlock „RUN“ 12
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) 12
5.4.1. Signal input parameter „INP“ 12
Value assigment for triggering of the signal input incl. linearisation
5.4.2. General device parameter „FCT“ 16
Higher 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 „COD“ 21
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 „Out“ 22
Analog output functions
5.4.5. Relay functions „rel“ 24
Parameter for the definition of the setpoints
5.4.6. Alarm parameter „AL1…AL4“ 27
Activator and dependencies of the alarms
5.4.7. Totaliser (Volume metering) „tot“ 29
Parameter for calculation of the sum function
6. Reset to factory settings 30
Reset of the parameter to the factory default settings
7. Alarms / Relays 31
Function principle of the switching outputs
8. Sensor alignment 33
Function diagram for sensors with existing trimming resistor
9. Technical data 34
10. Safety advices 36
11. Error elimination 37

1. Brief description
1
1. Brief description
The panel meter M2-11 is a 5-digit device for direct current/direct voltage signals and a visual
threshold value monitoring via the display. The configuration happens via four front keys or
via the optional PC software PM-TOOL. An integrated programming interlock prevents
unrequested changes of the parameters and can be unlocked 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
2
2. Assembly
Please read the Safety advices on page 36 before installation and keep this user manual for
future reference.
Sealing
48,0
3,0
M2
Gap for physical unit
89,0
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!

3. Electrical connection
3
3. Electrical connection
Type M2-1VT5B.0001.470xD with a supply of 115 VAC
Type M2-1VT5B.0001.570xD with a supply of 230 VAC
Type M2-1VT5B.0001.670xD with a supply of 10-30 VDC
0/4....20 mA
+
0...10 V
_
+
Sensor
supply
(Option)
_+
1 2 3 10 119
4 5 6 7 8
0-10 VDC
+
Digital input
(Option)
10-30 VDC
or
115 VAC
or
230 VAC
N L
789
_+
0/4-20 mA
Analog output
(Option)
21 22 23 24 25 26
S1 S2
Relay option
_
+

4
3. Electrical connection
Connection examples:
Below please find some connection examples, which demonstrate some practical
applications: Devices with current inputs / voltage inputs, without sensor supply.
10-30 VDC
_
M2 in combination with a 3-wire-sensor of 0-10 V
+
+
Transmitter
1 2 3 10 11 9
4 5 6 7 8
_
10-30 VDC
_
M2 in combination with a 2-wire-sensor of 4-20 mA
+
1 2 3 10 119
4 5 6 7 8
-
+
Transmitter
10-30 VDC
_
M2 in combination with a 3-wire-sensor of 0/4-20 mA
+
+
Transmitter
1 2 3 10 1194 5 6 7 8
_

5
3. Electrical connection
M2 devices
With current / voltage input in combination with a 24 VDC sensor supply.
10-30 VDC
_
2-wire sensor: 4-20 mA
+
-
3-wire sensor: 0-20 mA
3-wire sensor: 0-10 V
+
Transmitter
_
+
Transmitter
Signal
10-30 VDC
-+
10-30 VDC
_
+
Transmitter
Signal
+
115 VAC
or
230 VAC
_ +
NL
Transmitter
_
+
Transmitter
Signal
115 VAC
or
230 VAC
115 VAC
or
230 VAC
-+
_
+
Transmitter
Signal
+
NL
NL
+
+
1 2 3 10 11 9
4 5 6 7 8 1 2 3 10 11
9
4 5 6 7 8
123 10 1194 5 6 7 8
123 10 1194 5 6 7 8 1 23 10 1194 5 6 7 8
123 10 1194 5 6 7 8
7 8 9
Digital input
10-30 VDC
_ _
+
M2 with digital input in combination
with 24 VDC sensor supply
7 8 9
Digital input
10-30 VDC
_+
M2 with digital input and external
voltage supply source

4. Function and operation description
6
4. Function 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.
Parameterisation
level
To confirm the changes made at the parameterization
level.
Adjustment of the value / the setting.
Change into menu level or break-off in value input.
Menu group level
Change to menu level.
Keys for up and down navigation in the menu group
level.
Change into operation mode or back into menu level.
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 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. 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 saved automatically by the device and it changes into operating mode, if no
further key operation is done within the next 10 seconds.

7
4. Function and operation description
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 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 saved 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.
CAUTION!
During parameterisation with connected measuring signal, make sure that the measuring signal
has no mass supply to the programming plug. The programming adapter is galvanic not
isolated and directly connected with the PC. Via polarity of the input signal, a current can
discharge via the adapter and destroy the device as well as other connected components!
Function chart:

8
5. Setting up the device
Menu level Parameterisation level
Selection of the input signal,
Default:
There are several measuring input options: 0-20 mA, 4-20 mA or 0-10 VDC
signals as works calibration (without application of the sensor signal) and
(voltage) or (current) as sensor calibration (with the sensor applied). Confirm
the selection with [P] and the display switches back to menu level.
Setting the measuring range end value, :
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 highest value
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 analogue input value.
5. Setting up the device
5.1. Switching-on
Once the installation is complete, start the device by applying the voltage supply. First, 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 .

9
5. Setting up the device
Menu level Parameterisation level
Setting up the measuring range start/offset value, :
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 analogue input value.
Setting the comma/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.
Selection of analog output,
Default:
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 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 highest digit. After the last digit, the device changes back into menu level.
then

10
5. Setting up the device
Menu level Parameterisation 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 highest digit. After the last digit, the device changes back into menu level.
Threshold values / limit values,
Default:
This limit value defines the threshold, that leads to an activation / deactivation of
the alarm.
Hysteresis for limit values,
Default:
The difference to the threshold value that causes the delay of the actuation of the
alarm, is defined by the hysteresis.
Function if display falls below / exceeds limit value,
Default:
The limit value undercut can be selected with (LOW = lower limit value) and
limit value exceedance can be selected with (HIGH = upper limit value). If e.g.
limit value 1 is on a switching threshold of 100 and occupied with function , the
alarm will be activated by reaching the threshold. If the limit value is allocated to
, an alarm will be activated by undercut of the threshold.
Threshold values / limit values,
Default:
This limit value defines the threshold, that leads to an activation / deactivation of
the alarm.

11
5. Setting up the device
Menu level Parameterisation level
Hysteresis for threshold values,
Default:
The difference to the threshold value that causes the delay of the actuation of the
alarm, is defined by the hysteresis.
Function if display falls below / exceeds limit value,
Default:
The limit value undercut can be selected with (LOW = lower limit value) and
limit value exceedance can be selected with (HIGH = upper limit value). If e.g.
limit value 1 is on a switching threshold of 100 and occupied with function , the
alarm will be activated by reaching the threshold. If the limit value is allocated to
, an alarm will be activated by undercut of the threshold.
User code (4-digit number-combination, free available), :
Default:
If this code is set (> ), all parameters are locked for the user, if has been
selected under menu item . By pressing [P] for approx. 3 seconds in operation
mode, the message is shown in the display. Enter the preset to get
access to the for the user unlocked set of parameters. The code needs to be
entered bevor each try of parameterisation, as long as all parameters are released
by the (Master code) again.
Master code (4-digit number-combination free available), :
Default:
After has been activated under menu item , this code can be used for
unlocking all parameters. By pressing [P] for approx. 3 seconds in operation
mode, the message is shown in the display and offer the user access to all
parameters by entering . While leaving this parameterisation it can be
unlocked permanently under by selecting or . So, at an anew
pressing of [P] in operating mode, an anew entereing of the code is not needed.

12
5. Setting up the device
Menu level Parameterisation level
5.3. Programming interlock
Activation / Deactivation of the programming interlock or completion of the
standard parameterisation with change into menu group level (complete
function volume),
Default:
Choose between the deactivated key lock (works setting), the activated key
lock , or the menu group level with the navigation keys [▲] [▼]. 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 into 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 as long activated as is entered in menu group , thus the display is
set back in standard parameterisation again.
5.4. Extended parameterisation (Professional operation level)
5.4.1. Signal input parameters
Menu level Parameterisation level
Selection of the input signal,
Default:
There are several measuring input options: 0-20 mA, 4-20 mA or 0-10 VDC
signals as works calibration (without application of the sensor signal) and
(voltage) or (current) 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. Setting up the device
13
Menu level Parameterisation level
Setting the measuring range end value,
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 highest value
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 analogue input value
Setting up the measuring range start/offset value, :
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 analogue input value.
Setting the comma/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 second. 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 (factory setting) without
applying a measuring signal.
then

14
5. Setting up the device
Menu level Parameterisation level
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.
Setting up the tare/offset value, :
Default:
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,
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:
Choose between the above shown physical units. It will be displayed on the 5th
digit of the display, thus the range of value is limited to -1999…9999.
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.

5. Setting up the device
15
Menu level Parameterisation level
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 preset according to the selected input signal mA/V. The
demanded analog values can be freely adjusted in ascending order.
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. Setting up the device
16
5.4.2. General device parameters
Menu level Parameterisation level
Display time,
Default:
The display time is set up with [▲] [▼]. Thereby switch up to 1 second in
increments of 0.1 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,
Default:
This function is for instable display values, where the display value is changed in
steps 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.
Arithmetics,
Default:
With this function the calculated value, not the measurand, 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.
Menu group level
Menu level
then
Reciprocal Root extraction Square

5. Setting up the device
17
Menu level Parameterisation 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 highest digit. After the last digit the display changes back
into menu level.