montwill M1 User manual

Technical features:
• red display of -1999…9999 digits (optional: green, orange or blue)
• minimal installation depth: 25 mm, 27 mm, 60 mm or 71 mm without plug-in terminal
• adjustment via factory default or directly on the sensor signal
• min/max-memory
• 10 adjustable supporting points
• display flashing at threshold exceedance / undershooting
• tara function
• programming interlock via access code
• protection class IP65 at the front
• plug-in terminal
• pc-based configuration software PM-TOOL with CD and USB-adapter
• on request: devices for operating temperature of -40°…+70°C (M1O)
User Manual M1
Direct voltage signals (Shunt): 0-60-150 mV
M1_x2GB.pdf update: 04.11.2020
Installation size 96x48 mm (BxH)
Installation size mm (BxH) Installation size 72x36 mm (BxH)
Installation size 48x24 mm (BxH)

Identification – Direct voltage / Direct current
Please state physical unit by order, e.g. A
Options – breakdown of order code:
STANDARD TYPES ORDER NUMBER
Housing dimension: 96x48x38 mm (incl. plug-in terminal) M1-1VR4B.0002.570xD
M1-1VR4B.0002.770xD
Housing dimension: 96x24x74 mm (incl. plug-in terminal) M1-3VR4B.0002.570xD
M1-3VR4B.0002.770xD
Housing dimension: 72x36x100 mm (incl. plug-in terminal) M1-6VR4B.0002.570xD
M1-6VR4B.0002.770xD
Housing dimension: 48x24x54 mm (incl. plug-in terminal) M1-7VR4A.0002.770xD
M 1- 1 V R 4 B. 0 0 0 2. 5 7 0 x D
Dimension
D physical unit
Product range 1
Version
x internal version
96x48x25 mm 1
96x24x57 mm 3 Switching points
72x36x71 mm 6 0 no switching point
48x24x27 mm 7 2 relay outputs (only M1-6 devices)
Display type Protection class
Current, voltage V 1 without keypad,
operation via PM-TOOL
Display colour 7 IP65 / plug-in terminal
Blue B
Green G Supply voltage
Red R 5 230 VAC
Orange Y 7 24 VDC galv. isolated
Number of digits Measuring input
4-digit 4 2 Shunt 0-60-150 mV
Digit height Analog output
10 mm A 0 without
14 mm B
Sensor supply
Interface 0 without
without 0
Housing size (BxHxD)
Standard type M-Line

Content
1. Brief description 1
2. Assembly 1
3. Electrical connection 2
4. Function description and operation 3
4.1. Programming software PM-TOOL 3
5. Setting up the device 4
5.1. Switching on 4
5.2. Standard parameterisation (flat operation level) 4
Value assignment for control of the signal input
5.3. Programming interlock 5
Activation/Deactivation of the programming interlock or change into extended
parameterisation
5.4. Extended parameterisation 6
Superior device functions like e.g.:
- rescaling of the input signals, , 6
- parameterisation of a TARA-function, 6
- zero point slowdown of the input signal, 6
- allocation of functions onto the navigation keys, 7
- adjustment of limit values for optical alarm, 7
- safety parameter for locking of the programming, 9
- input of supporting points for the linearisation of the input signals, 9
6. Reset to default values 10
Reset of the parameter onto delivery condition
7. Alarms / Switching points 11
Functional principle of the optical switching points
8. Technical data 12
9. Safety advices 14
10. Error elimination 15

2. Assembly
1
1. Brief description / 2. Assembly
Please read the Safety advices on page 15 before installation and keep this user manual for
future reference.
The example given below shows a device in housing size 96x48mm.
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!
1. Brief description
The panel instrument M1-x2 is a 4-digit device for direct voltage signals (via Shunt) and a
visual limit value monitoring via the display. The configuration happens via three front keys
or via the optional PC-software PM-TOOL. An integrated programming lock prevents
unrequested changes of the parameter and can be unlocked again via an individual code.
The electrical connection happens on the rear side via plug-in terminals.
Selectable functions like e.g. the recall of the min/max-value, a zero point slowdown, a direct
change of the limit value in operating mode and additional measuring supporting points for a
linearisation of the input signal, complete the modern device concept.
Sealing
48,0
96,0
3,0
38,0
Installation depth
incl. plug-in terminal
Gap for
physical unit

3. Electrical connection
2
3. Electrical connection
Type M1-1VR4B.0002.570xD (96x48mm)
Type M1-3VR4B.0002.570xD (96x24mm)
Type M1-1VR4B.0002.770xD (96x48mm)
Type M1-3VR4B.0002.770xD (96x24mm)
Type M1-7VR4A.0002.770xD (48x24mm)
Type M1-6VR4B.0002.570xD (Housing 72x36mm)
Type M1-6VR4B.0002.770xD (Housing 72x36mm)
123 4 5
0...60 mV
_
+
0...150 mV
_
+
230 VAC
3 VA
N L
_
<
12345
24 VDC
1 VA
+
0...60 mV
_
+
0...150 mV
_
+
_
_
<
0....60 mV
_
+
0...150 mV
_
+
Power supply
230 VAC
LN
0....60 mV
_
+
0...150 mV
_
+
Power supply
24 VDC
+
_

4. Function description and operation
Level Button Description
Menu level
Change to parameterization level with the relevant parameters
For navigation at the menu level
Parameter
level
To confirm the changes made at the parameterization level
To change the value or setting
3
4. Function description and operation
Operation
The operation is divided into two different levels.
Menu Level
Here it is possible to navigate between the individual menu items.
Parameterization level:
The parameters stored in the menu item can be parameterized here.
Functions that can be adjusted or changed are always indicated with a flashing of the
display. Adjustments made at the parameterization level should be always confirmed by
pressing the [P] key to save them. However, the display automatically saves all adjustments
and then switches to operation mode if no further keys are pressed within 10 seconds.
4.1. Programming via configuration software PM-TOOL-MUSB4:
You receive the software on CD incl. an USB-cable with a device adapter. The connection is
done via a 4-pole micromatch connector plug on the back and the PC is connected via an
USB connector plug.
System requirements: PC with USB interface
Software: Windows XP, Windows Vista
With this tool the device configuration can be created, skipped and saved on the PC. Via the
easy to handle program surface the parameter can be changed, whereat the mode of
operation and the possible selection options can be preset via 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!
Menu level Parameter level
Example

4
5.1. Switching on
Once the installation is complete, you can start the device by applying the current loop.
Check beforehand once again that all the 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 start-up sequence, the device switches to operation/display mode.
5.2. Standard parameterization:
To be able to parameterize 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
Menu level Parameterization level
Selection of the input signal,
Default:
There are several measuring inputs options: 0-60 mV or 0-150 mV signals as the
works calibration (without application of the sensor signal) and as the 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 the 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 measuring range start/offset value, :
Default:
Enter the start/offset value from the smallest to the highest digit [▲] [▼] and
confirm each digit with [P]. After the last digit the display switches back to the
menu level. If was selected as the 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
5. Setting up the device
Menu level Parameterization level
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 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 to 10.0 seconds. Confirm the selection by
pressing the [P] button. The display then switches back to the menu level again.
5.3. Programming interlock
Activation/deactivation of the programming lock and completion of the
standard parameterization,
Default:
Choose between the deactivated key lock (works setting) and the activated
key lock with the aid of the [▲] [▼] keys. Make 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 the [▲] [▼] keys plus [P] to unlock the keyboard.
appears if the input is wrong.
dann

6
5. Setting up the device
Menu level Parameterization level
Rescaling the measuring input values,
With the aid of this function, one can rescale the input value of e.g. 50 mV (works
setting) without applying a measuring signal. If sensor calibration has been
selected, these parameters are not available.
Rescaling the measuring input values,
With the aid of this function, one can rescale the input value of e.g. 0,5 mV (works
setting) without applying a measuring signal. If sensor calibration has been
selected, these parameters are not available.
Setting 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.
Zero point slowdown,
Default:
With zero point slowdown, a value range around zero can be preselected at which
the display shows zero. If, for example, a 10 is set, the display would show a zero
in the range from -10 to +10 and continue below it with -11 and above it with +11.
5.4. Extended parameterization
By pressing the [▲] &[▼] keys during standard parameterization for one second, the
display switches to the extended parameterization mode. Operation is the same as in
standard parameterization.

7
5. Setting up the device
Menu level Parameterization level
Min/max-value inquiry - assignment of key functions,
Default:
For the operating mode enter here either a min/max-value inquiry or a threshold
value correction on the arrow keys.
If the min/max-memory was activated with , the measured min/max-values will
be saved during operation and can be called up via the arrow keys [▲] [▼]. When
the device is restarted or the buttons are pressed simultaneously, the values are
lost or deleted.
If the threshold value correction was selected, the limit values can be changed
during operation without hindering the operating procedure.
With the display is tared to zero and is saved permanently as offset. The
device confirms the correct taring by showing in the display. If was
parameterized, the navigation keys [▼] [▲] have no function in operating mode.
Flashing of display,
Default:
Here, the flashing of the display can be added as an extra alarm function, either to
the first limit value (select: ), the second limit value (select: ) or to both limit
values (select: ). With (works setting), no flashing is assigned at all.
Limit values,
Default:
For both limit values, two different values can be parameterized. With this, the
parameters for each limit value are called up one after the other.
Hysteresis for limit values,
Default:
For both limit values, a hysteresis function exists that reacts according to the
functional principle (operating current / quiescent current).

8
5. Setting up the device
Menu level Parameterization level
Function if display falls below / exceeds limit value,
Default:
To indicate if the value falls below the lower limit value, can be selected
(LOW = lower limit value) and if it goes above the upper limit value, can be
selected (HIGH = upper limit value). LOW corresponds to the quiescent current
principle and HIGH to the operating current principle.
Limit value,
Default:
For both limit values, two different values can be parameterized. With this, the
parameters for each limit value are called up one after the other.
Hysteresis for limit values,
Default:
For both limit values, a hysteresis function exists that reacts according to the
functional principle (operating current / quiescent current).
Function if display falls below / exceeds limit value,
Default:
To indicate if the value falls below the lower limit value, can be selected
(LOW = lower limit value) and if it goes above the upper limit value, can be
selected (HIGH = upper limit value). LOW corresponds to the quiescent current
principle and HIGH to the operating current principle.

9
5. Setting up the device
Menu level Parameterization level
Setting the code,
Default:
With this setting, it is possible to select an individual code (works setting ) for
locking the keyboard. To lock/release the key, proceed according to menu item
.
Supporting points - number of additional supporting points,
Default:
In addition to the start and end value, 8 extra supporting points can be defined to
linearise non-linear sensor values. Only the activated set point parameters are
displayed.
Display values for supporting points,
Under this parameter the supporting points are defined on a value basis. At the
sensor calibration one will be asked at the end (like at final value/offset, too), if a
calibration shall be triggered.
Analogue values for supporting points,
Supporting points are always preset according to the selected input signal mV.
Here the desired analog values can be freely adjusted in ascending order.

10
6. Reset to default values
To return the unit to a defined basic state, a reset can be carried out to the default values.
The following procedure should be used:
• Switch off the power supply
• Press [P]-button
• Switch on voltage supply and press [P]-button until is shown in the display.
With reset, the default values of the program table are loaded and used for subsequent
operation. This sets the unit back into the state in which it was supplied.
Caution! All application-related data are lost.
6. Reset to default values

11
7. Functional principle of the switching points
Alarms / optical switching point display
An activated switching point can be optically indicated by flashing of the 7-segment display.
Functional principle of the alarms
Alarm Deactivated, display value
Threshold Threshold value / limit value for switch over
Hysteresis Width of the window between the thresholds
Operating principle Limit value exceedance / limit value undercut
7. Functional principle of the switching points
Limit value exceedance “ ”
The switching point S1-S2 is “off” below the threshold and “on” on reaching the threshold.
Limit value undercut “ ”
The switching point S1-S2 is “on” below the threshold and switched “off” on reaching the
threshold.
Hysterese

abgefallen
angezogen
Anzeige
Schaltpunkt
Aus
Ein
Schaltschwelle
Hysterese


angezogen
abgefallen
Anzeige
Schaltpunkt
Aus
Ein
Schaltschwelle

8. Technical data
Housing
Dimensions 96x48x25 mm (BxHxD), D = 38 mm including plug-in terminal
96x24x60 mm (BxHxD), D = 74 mm including plug-in terminal
72x36x71 mm (BxHxD), D = 100 mm including plug-in terminal
48x24x27 mm (BxHxD), D = 54 mm including plug-in terminal
Panel cut-out 92.0+0.8 x 45.0+0.6 mm (Housing 96x48 mm)
92.0+0.8 x 22.2+0.3 mm (Housing 96x24 mm)
68.0+0.7 x 32.0+0.7 mm (Housing 72x36 mm)
45.0+0.6 x 22.2+0.3 mm (Housing 48x24 mm)
Insulation thickness up to 3 mm
Fixing snap-in screw element
Material PC Polycarbonate, black, UL94V-0
Sealing material EPDM, 65 Shore, black
Protection class standard IP65 (front), IP00 (back side)
Weight approx. 100 g (96x48 mm, 96x24 mm, 48x24 mm)
approx. 200 g (72x36 mm)
Connection plug-in terminal; wire cross section up to 2.5 mm2
Display
Digit height 10 mm (housing 48x24 mm)
14 mm (housing 96x48 mm, 96x24 mm, 72x36 mm)
Segment colour red (optional green, orange or blue)
Display range -1999 to 9999
Setpoints optical display flashing
Overflow horizontal bars at the top
Underflow horizontal bars at the bottom
Display time 0.1 to 10.0 seconds
Input Measuring
range
Ri Measuring fault Digit
min. -5…max. 80 mV 0-60 mV 12 kΩ 0.5 % of measuring range ±1
min. -10…max. 180 mV 0-150 mV 30 kΩ 0.5 % of measuring range ±1
12
8. Technical data

Switching outputs Type Switching contact
Only in housing size
72x36 mm
Relay with
change-over
contact
250 VAC / 5 AAC; 30 VDC / 5 ADC
30 x 103bei 5 AAC, 5 ADC at ohm resistive
burden
10 x 106mechanically
Separation according to DIN EN50178 /
Characteristics according to DIN EN60255
13
8. Technical data
Accuracy
Temperature drift 100 ppm / K
Measuring time 0.1…10.0 seconds
Measuring principle U/F-conversion
Resolution approx. 18 bit at 1s measuring time
Power pack 230 VAC ±10 % max. 3 VA
24 VDC ±10 % max. 1 VA
Memory EEPROM
Data life ≥ 100 years at 25°C
Ambient conditions
Working temperature 0°C…60°C
Storing temperature -20°C…80°C
Weathering resistance relative humidity 0-80% on years average without dew
EMV EN 61326
CE-sign Conformity to directive 2014/30/EU
Safety standard According to low voltage directive 2014/35/EU
EN 61010; EN 60664-1

Please read the following safety advices and the assembly chapter 2 before installation and
keep it for future reference.
Proper use
The M1-x2-device is designed for the evaluation and display of sensor signals.
Danger! Careless use or improper operation can result in
personal injury and/or cause damage to the equipment.
Control of the device
The panel meters are checked before dispatch and sent out in perfect condition. Should
there be any visible damage, we recommend close examination of the packaging. Please
inform the supplier immediately of any damage.
Installation
The M1-x2-device must be installed by a suitably qualified specialist (e.g. with a
qualification in industrial electronics).
9. Safety advices
Notes on installation
• There must be no magnetic or electric fields in the vicinity of the device, e.g. due to
transformers, mobile phones or electrostatic discharge.
• The fuse rating of the supply voltage should not exceed a value of 0.5A N.B. fuse!
• Do not install inductive consumers (relays, solenoid valves etc.) near the device and
suppress any interference with the aid of RC spark extinguishing combinations or free-
wheeling diodes.
• Keep input, output and supply lines separate from each other and do not lay them parallel
with each other. Position “go” and “return lines” next to one another. Where possible use
twisted pair. So, the best measuring results can be received.
• Screen off and twist sensor lines. Do not lay current-carrying lines in the vicinity. Connect
the screening on one side on a suitable potential equaliser (normally signal ground).
• The device is not suitable for installation in areas where there is a risk of explosion.
• Any electrical connection deviating from the connection diagram can endanger human life
and/or can destroy the equipment.
• The terminal area of the devices is part of the service. Here electrostatic discharge needs
to be avoided. Attention! High voltages can cause dangerous body currents.
• Galvanic isolated potentials within one complex need to be placed on an appropriate point
(normally earth or machines ground). So, a lower disturbance sensibility against impacted
energy can be reached and dangerous potentials, that can occur on long lines or due to
faulty wiring, can be avoided.
14
9. Safety advices

15
10. Error elimination
Error description Measures
1. The unit permanently indicates
overflow.
• The input has a very high measurement, check
the measuring circuit.
• With a selected input with a low voltage signal, it
is only connected on one side or the input is
open.
• Not all of the activated supporting points are
parameterised. Check if the relevant parameters
are adjusted correctly.
2. The unit permanently shows
underflow.
• The input has a very low measurement, check
the measuring circuit .
• With a selected input with a low voltage signal, it
is only connected on one side or the input is
open.
• Not all of the activated supporting points are
parameterised. Check if the relevant parameters
are adjusted correctly.
3. The word lights up in the
7-segment display.
• The unit has found an error in the configuration
memory. Perform a reset to the default values
and reconfigure the unit according to your
application.
4. Program numbers for
parameterising of the input are
not accessible.
• Programming lock is activated
• Enter correct code
5. lights up in the 7-segment
display.
• Please contact the manufacturer if errors of this
kind occur.
6. The device does not react as
expected.
• If you are not sure if the device has been
parameterised before, then follow the steps as
written in chapter 6 and set it back to its delivery
status.
10. Error elimination

Update: 04.11.2020M1_X2GB.pdf