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.