montwill M1 User manual

Technical features:
• red display of -1999…9999 digits (optional: green, orange or blue display)
• minimal installation depth: 60 mm without plug-in terminal
• adjustment via factory default or directly on the sensor signal
• min/max-memory
• display flashing at threshold exceedance / undershooting
• impedance matching
• 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 for devices
without keypad for a simple adjustment of standard devices
User Manual M1
96x24
M1_3C6GB.pdf update: 27.05.2020
Pt1000 2-wire -200…850°C / -328…1562°F

Identification
Please state physical unit by order, e.g. °C
STANDARD TYPES ORDER NUMBER
Pt1000 2-wire
Housing size: 96x24 mm
M1-3TR4B.030C.570xD
M1-3TR4B.030C.770xD
Options – breakdown of order code:
M 1- 3 T R 4 B. 0 6 0 C. 7 7 0 x D
Basic type M-Line Dimension
D physical Unit
Installation depth
74 mm 1 Version
incl. plug-in terminal x internal version
Housing size Switching points
96x24x60 mm (WxHxD) 3 0 no switching points
Display type Protection class
Temperature T 1 without keypad,
operation via PM-TOOL
Display colours 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 C Pt1000
Digit height
Analog output
14 mm B 0 without
Interface Pt1000-type
without 0 6 2-/3-wire

Content
1. Brief description 1
2. Assembly 1
3. Electrical connection and connection examples 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, impedance matching
5.3. Programming interlock 5
Activation/Deactivation of the programming interlock or change into
extended parameterisation
5.4. Extended parameterisation 5
Superior device functions like e.g.:
- allocation of functions onto the navigation keys 6
- adjustment of limit values for optical alarm, 6
- safety parameter for locking of the programming, 6
6. Reset to default values 7
Reset of the parameter onto delivery condition
7. Alarms / Switching points 8
Functional principle of the optical switching points
8. Technical data 9
9. Safety advice 11
10. Error elimination 12

2. Assembly
1
1. Brief description / 2. Assembly
Please read the Safety advices on page 12 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!
1. Brief description
The panel instrument M1-3C6 is a 4-digit device for temperature metering via Pt1000-sensors
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 interlock 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, an impedance matching and a
direct change of the limit value in operating mode complete the modern device concept.
Sealing
96,0
24,0
Gap for physical unit
3,0
Installation depth incl.
plug-in terminal
74,0
134,0

3. Electrical connection
2
3. Electrical connection
Type M1-3TR4B.030C.570xD with a supply of 230 VAC
Type M1-3TR4B.030C.770xD with a supply of 24 VDC galv. isolated
Advice:
The galvanic isolation in devices with temperature sensors, that do not have a galvanic
connection to an extrinsic potential, can be cancelled by an bridge from terminal 3 to 4 and
thus stabilise the device against external failures.
Devices with a supply of 230 VAC need to connect terminal 3 to signal ground.
1 2 3 4 5
Pt1000
2-wire
N L
230 VAC
3 VA
<
_
1 2 3 4 5
Pt1000
2-wire
_+
24 VDC
<
_
1 VA

4. Function description and operation
3
4. Function description and operation
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 safed 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!
Level Button Description
Menu level
Change to parameterisation level with the relevant
parameters.
For navigation at the menu level.
Parameterisation
level
To confirm the changes made at the parameterisation
level.
To change the value or setting.
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 parameterisation level should be always confirmed by pressing the
[P]-key to save them.
However, the display automatically saves all adjustments and then switches into operation
mode if no further keys are pressed within 10 seconds.
Menu level Parameterisation 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
5. Setting up the device
Menu level Parameterization level
Type of the temperature measurement,
Default:
For representing of temperature choose between °C and °F and confirm with [P].
The display then switches back to the menu level again.
Setting the decimal place / sign of physical unit, :
Default:
The decimal place and the physical unit are set with [▼] [▲]. If e.g. the
temperature measurement is chosen in °C, 0°C or 0.0°C can be selected on the
parameterization level. Confirm with [P], the display then switches back to the
menu level again.
Impedance matching, :
Default:
The value for the sensor alignment is adjusted from the smallest to the highest
place with [▼] [▲] and confirmed digit per digit with [P]. After the last place the
display switches back to the menu level. The value alignment for a temperature
measurement in °C can be set between -20.0 and +20.0 and for a measurement in
°F between -36.0 and +36.0. If the measurement is redirected later, the value is
rounded.

5
5. Setting up the device
Menu level Parameterization level
Setting the display time, :
Default:
The display time is set with [▲] [▼]. The display moves up in increments of 0.1
sec up to 1 second and in increments of 1.0 to 10.0 sec. 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:
With the aid of the [▲] [▼] keys, you can choose between the deactivated key
lock (works setting) and the activated key lock . 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, you must press [P] for 3 seconds in operating mode. You
must now enter the (works setting ) that appears using the [▲] [▼] keys
plus [P] to unlock the keyboard. appears if the input is wrong.
then
Menu level Parameterization level
Min/max-value inquiry - Assignment of key functions,
Default:
Here, you can enter for the operating mode either a min/max-value inquiry or a
threshold value correction on the arrow keys.
If the min/max-memory is 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 is selected, the limit values can be changed
during operation without hindering the operating procedure. If is parameterized,
the navigation keys [▼] [▲] have no function in operating mode.
5.4. Extended parameterization
By pressing the [▲] &[▼] buttons during standard parameterization for one second, the
display switches to the extended parameterization mode. Operation is the same as in
standard parameterization.

6
5. Setting up the device
Menu level Parameterization level
Flashing of display,
Default:
Here, 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 / Limits,
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.
Limit value / limits,
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.

7
6. Reset to default values
Menu level Parameterization level
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.
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
.
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 button [P]
• 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 puts the unit back to the state in which it was supplied.
Caution! All application-related data are lost.
6. Reset to default values

8
7. Functional principle of the switching points
Alarms / optical switching point display
An activated set point can be optically indicated by flashing of the 7-segment display.
Functional principle of the alarms
Alarm Deactivated, display value
Threshold Threshold/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.

8. Technical data
Housing
Dimensions 96x24x60 mm (BxHxD)
96x24x74 mm (BxHxD) including plug-in terminal
Panel cut-out 92.0+0.8 x 22.2+0.3 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. 200 g
Connection plug-in terminal; wire cross section up to 2.5 mm2
Display
Digit height 14 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 Measuring fault Digit
Pt1000 2-wire -200…850°C 0.2 % of measuring range ±1
Pt1000 2-wire -328…1562°F 0.2 % of measuring range ±1
Accuracy
Temperature drift 100 ppm / K
Measuring time 0.1…10.0 seconds
Measuring principle U/F-conversion
Resolution 0.1°C or 0.1°F
Power pack 230 VAC ±10 % max. 3 VA
24 VDC ±10 % max. 1 VA
Memory EEPROM
Data life ≥ 100 years at 25°C
9
8. Technical data

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
10
8. Technical data

Please read the following safety advices and the assembly chapter 2 before installation and
keep it for future reference.
Proper use
The M1-3C6-device is designed for the evaluation and display of Pt1000 signals.
Danger! Careless use or improper operation can result in
injury and/or 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 M1-3C6-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 insulated 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.
11
9. Safety advices

12
10. Error elimination
10. Error elimination
Error description Measures
1. The unit permanently indicates
overflow.
• The input has a very high measurement,
check the measuring circuit.
• The input is open.
2. The unit permanently shows
underflow.
• The input has a very low measurement,
check the measuring circuit .
• The input is open.
3. The word HELP lights up in the
7-segment display.
• The unit has found an error in the
configuration memory. Perform a reset on
the default values and re-configure 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. Err1 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.
7. The temperature value is unstable. • Please check the possibility to set aside
the galvanic insulation for a discharging of
failures as described under chapter 3
„Electrical connection“. Before make sure
that the possible metal sensor is
separated from the sensor element.

update: 27.05.2020M1_3C6GB.pdf