User manual M3

User manual M3
User manual M3
Pt100 2-/3-/4-wire -200.0°C…850°C / -328.0°F…1562.0°F
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
• display flashing at threshold value exceedance / threshold value undercut
• permanent min/max-value recording
• 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
• accessories: PC-based configuration-kit PM-TOOL with CD & USB-adapter for devices without
keypad and for a simple adjustment of standard devices
M3_7CGB.pdf update: 23.03.2015
48x24
Identification
STANDARD-TYPES
Pt100 2-/3-/4-wire
Housing size: 48x24 mm
ORDER NUMBER 2-/4-wire
ORDER NUMBER 3-wire
M3-7TR5A.010C.S70BD
M3-7TR5A.010C.770BD
M3-7TR5A.030C.S70BD
M3-7TR5A.030C.770BD
Options – breakdown of order code:
M 3- 7 T R 5 B. 0 1 0 C. 7 7 2 B D
Standard type M line
Dimension
D physical unit
Installation depth
109 mm, incl. plug-in terminal
3
Version
B B
Housing size
48x24x90 mm (BxHxD)
7
Switching points
0 no switching points
Display type
Temperature
T
2 2 P hotoMos ‐ outputs
Protection class
1 without keypad,
Display colour
Blue
B
Green
Red
Orange
G
R
Y
Number of digits
5-digit
5
opera tion v ia P M‐T O OL
7 IP65 / plug-in terminal
Supply voltage
7 24 VDC galv. isolated
S 85-265 VAC
Measuring input
C Pt100 up to 850°C
Digit height
10 mm
Digital input
without
A
Analog output
0 without
0
X 0-10 VDC, 0/4-20 mA
Temperature devices
1 P t100 2‐/4‐ wire
3 P t100 3‐wire
Please state physical unit by order, e.g °C
Contents
1.
Brief description
2
2.
Assembly
3
3.
Electrical connection
4
4.
Functions and operation description
6
4.1. Programming software PM-TOOL
7
Setting up the device
8
5.1. Switching on
8
5.2. Standard parameterisation (flat operation level)
8
5.
Value assigment for triggering of the signal input
5.3. Programming interlock „RUN“
11
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)
5.4.1. Signal input parameter „INP“
12
12
Value assigment for triggering of the signal input
5.4.2. General device parameter „FCT“
15
Superior device functions like min/max permanent, brightness control, as well as the control of the
keyboard configuration
5.4.3. Safety parameter „COD“
19
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“
20
Analog output functions
5.4.5. Relay functions „rel“
22
Parameter for the definition of the setpoints
5.4.6. Alarm parameter „AL1…AL4“
24
Activator and dependencies of the alarms
6.
Reset to factory settings
27
Reset of the parameter to the factory default settings
7.
Alarms / Relays
28
Function principle of the switching outputs
8.
Technical data
30
9.
Safety advices
32
10.
Error elimination
33
1
1. Brief description
1. Brief description
The panel meter instrument M3-7C is a 5-digit device for Pt100 temperature sensors and a visual threshold
value monitoring via the display. The configuration happens via three keys at the front or by the optional PC
software PM-TOOL. The integrated programming interlock prevents unrequested changes of parameters and
can be unlocked again with an individual code. Optional an analog output for further processing in the
equipment is available. And on demand two free adjustable setpoints with which threshold values can be
controlled and reported to an superior master display.
The electrical connection is done via plug-in terminals on the back side.
Selectable functions like e.g. the recall of the min/max-value, a direct threshold value regulation during
operation mode, complete the modern device concept.
2
2. Assembly
2. Assembly
Please read the Safety advices on page 32 before installation and keep this user manual for future
reference.
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After removing the fixing elements, insert the device.
Check the seal to make sure it fits securely.
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
3. Electrical connection
3. Electrical connection
Type M3-7TR5A.010C.S70BD 2-/4-wire
Type M3-7TR5A.030C.S70BD 3-wire
supply of 100-240 VAC
Type M3-7TR5A.010C.770BD 2-/4-wire
Type M3-7TR5A.030C.770BD 3-wire
supply of 24 VDC
4
4. Function and operation description
4. Function 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 “prof“ under menu item RUN.
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 „uloc„ under menu item RUN.
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 safed. 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 saved automatically by the device and it
changes into operating mode, if no further key operation is done within the next 10 seconds.
Level
Key
Description
Change to parameterisation level and deposited values.
Menu level
Keys for up and down navigation in the menu level.
Change into operation mode by pushing both navigation keys
at the same time.
To confirm the changes made at the parameterization level.
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.
Change to menu level
Menu group 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.
5
4. Function and operation description
Function chart:
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.
6
5. Setting up the device
5. Setting up the device
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 (8 8 8 8 8) 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 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 TYPE.
Menu level
Parameterisation level
Type of temperature metering, UNIT:
Default: °C
The temperature can be displayed in °C or in °F. Confirm the selection with [P] and the display
switches back to menu level.
Setting the decimal point, DOt:
Default: 0.0
The decimal point on the display and the physical unit can be changed with [▲] [▼]. If e.g.
temperature measurement in °C is selected, then choose between 0°C and 0.0°C in the
parameterisation level. Confirm with [P], the display then switches back to the menu level
again.
Setting the measuring range start / offset value, offs:
Default: 0.0
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 Sens was selected as
the input option, one can only select between noca and cal. With noca, only the previously set
display value is taken over, and with cal, the device takes over both the display value and the
analogue input value.
Setting the display time, SEC:
Default: 1.0
then
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.
7
5. Setting up the device
Menu level
Parameterisation level
Selection of analog output, Out.rA:
Default: 4-20
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, Out.En:
Default: 850.0
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.
Setting up the initial value of the analog output, Out.OF:
Default: -200.0
The initial 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 / limits, LI-1:
Default: 200.0
This value defines the threshold, that activates/deactivates an alarm.
Hysteresis for limit values, HY-1:
Default: 0.0
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, Fu-1:
Default: high
A limit value undercut is selected with Louu (for LOW = lower limit value), a limit value
exceedance with High (for HIGH = higher limit value). If e.g. limit value 1 is on a threshold level
of 100 and allocated with function High, an alarm is activated by reaching the threshold level. If
the threshold value was allocated to Low, an alarm will be activated by undercutting the
threshold value, as long as the hysteresis is zero.
8
5. Setting up the device
Menu level
Parameterisation level
Threshold values / limits, LI-2:
Default: 300.0
´
This value defines the threshold, that activates/deactivates an alarm.
Hysteresis for threshold values, HY-2:
Default: 0.0
The delayed reaction of the alarm is the difference to the threshold value, which is defined by
the hysteresis.
Function if display falls below / exceeds limit value, FU-2:
Default: high
A limit value undercut is selected with Louu (for LOW = lower limit value), a limit value
exceedance with High (for HIGH = higher limit value). If e.g. limit value 1 is on a threshold level
of 100 and allocated with function High, an alarm is activated by reaching the threshold level. If
the threshold value was allocated to Low, 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), U.CodE:
Default: 0000
If this code was set (>0000), all parameters are locked for the user, if LOC has been selected
before under menu item run. By pressing [P] for 3 seconds in operation mode, the display
shows COde. The U.Code needs to be entered to get to the reduced number of parameter sets.
The code has to be entered befor each parameterisation, until the A.Code (Master code) unlocks
all parameters again.
Master code (4-digit number-combination, free available), A.CodE:
Default: 1234
All parameters can be released with this code, after LOC has been activated under menu item
run. By pressing [P] for 3 seconds in operation mode, the display shows COde and enables the
user to reach all parameters by entering the A.codE. Under run the parameterisation can be
activated permanently by selecting ULOC or ProF, thus at an anew pushing of [P] in operation
mode, the code needs not to be entered again.
9
5. Setting up the device
Menu level
Parameterisation level
5.3. Programming interlock „RUN“
Activation / deactivation of the programming lock or completion of the standard parameterization with change into menu group level (complete function range), run:
Default: uloc
With the navigation keys [▲] [▼], choose between the deactivated key lock Uloc (works
setting) and the activated key lock Loc, or the change into the menu group level ProF. Confirm
the selection with [P]. After this, the display confirms the settings with "- - - - -", and
automatically switches to operating mode. If Loc was selected, the keyboard is locked. To get
back into the menu level, press [P] for 3 seconds in operating mode. Now enter the CODE (works
setting 1 2 3 4) that appears using [▲] [▼] plus [P] to unlock the keyboard. FAIL appears if the
input is wrong. To parameterize further functions ProF 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 InP is shown in the display and thus confirms
the change into the extended parameterisation. It stays activated as long as ULOC or LOC is
entered in menu group RUN.
10
5. Setting up the device
5.4. Extended parameterisation (Professional operation level)
5.4.1. Signal input parameters
Menu group level
Menu level
Menu level
Parameterisation level
Type of temperature metering, UNIT:
Default: °C
The temperature can be displayed in °C or in °F. Confirm the selection with [P] and the display
switches back to menu level.
Setting the decimal point, DOt:
Default: 0.0
The decimal point on the display and the physical unit can be changed with [▲] [▼]. If e.g.
temperature measurement in °C is selected, then choose between 0°C and 0.0°C in the
parameterisation level. Confirm with [P], the display then switches back to the menu level
again.
Setting the measuring range start / offset value, offs:
Default: 0.0
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 Sens was selected as
input option, one can only select between noca and cal. With noca, only the previously set
display value is taken over, and with cal, the device takes over both the display value and the
analogue input value.
Device undercut, dI.Und:
Default: -i9999
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.
11
5. Setting up the device
Menu level
Parameterisation level
Display overflow, dI.OUE:
Default: 99999
With this function the display overflow (
_____
) can be defined on a definite value.
Back to menu group level, rEt:
With [P] the selection is confirmed and the device changes into menu group level „–INP–“.
5.4.2. General device parameters
Menu group level
Menu level
Menu level
Parameterisation level
Display time, DISEC:
Default: 01.0
then
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, round:
Default: 00001
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.
Display, dISPL:
Default: actua
With this function the current measuring value or the min/max-value. With [P] the selection is
confirmed and the device changes into menu level.
12
5. Setting up the device
Menu level
Parameterisation level
Brightness control, Light:
Default: 15
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, FLASH:
Default: no
A display flashing can be added as additional alarm function either to single or to a combination
of off-limit condition. With no, no flashing is allocated.
Assignment (deposit) of key functions, tASt:
Default: no
For the 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 is activated with EHtr, 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 LI.12 or LI.34 is choosen, the values of the
threshold can be changed during operation without disturbing the operating procedure. If no is
selected, the navigation keys are without function in the operation mode.
Back to menu group level, rEt:
With [P] the selection is confirmed and the device changes into menu group level „–fct–“.
13
5. Setting up the device
5.4.3. Safety parameters
Menu group level
Menu level
Menu level
Parameterisation level
User code U.Code:
Default: 0000
Via this code, reduced sets of parameters can be released. A change of the U.CodE can be done
via the correct input of the A.CodE (master code).
Master code, A.Code:
Default: 1234
By entering A.CodE, the device will be unlocked and all parameters are released.
Release/lock analog output parameters, Out.LE:
Default: all
Analog output parameters can be locked or released for the user:
- En-oF: the initial or final value can be changed in operation mode
- Out.EO: the output signal can be changed from e.g. 0-20 mA to 4-20 mA or 0-10 VDC
- ALL: analog output parameters are released
- no: all analog output parameters are locked
Release/lock alarm parameters, AL.LEU:
Default: all
This parameter describes the user release/user lock of the alarm:
- LIMIt: here only the range of value of the threshold values 1-4 can be changed
- ALrM.L: here the range of value and the alarm trigger can be changed
- ALL: all alarm parameters are released
- no: all alarm parameters are locked
14
5. Setting up the device
Menu level
Parameterisation level
Back to menu group level, rEt:
With [P] the selection is confirmed and the device changes into menu group level „–COD–“.
5.4.4. Analog output parameters
Menu group level
Menu level
Menu level
Parameterisation level
Selection reference analog output, OutPt:
Default: actua
The analog output signal can refer to different functions, in detail this are the current
measurand, min/max-value.With [P] the selection is confirmed and the device changes into
menu level.
Selection analog output, Out.rA:
Default: 4-20
Availabe 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, Out.En:
Default: 850.0
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 leftmost digit. After the last
digit, the display switches back to the menu level.
15
5. Setting up the device
Menu level
Parameterisation level
Setting the initial value of the analog output, Out.OF:
Default: -200.0
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, O.FLoU:
Default: edge
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 EdGE, that means the analog
output runs on the set limits e.g. 4 and 20 mA, or to.OFF (input value smaller than initial value,
analog output switches on e.g. 4 mA), to.End (higher than final value, analog output switches on
e.g. 20 mA). If to.MIn or to.MAX 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, rEt:
With [P] the selection is confirmed and the device changes into menu group level „–out–“.
16
5. Setting up the device
5.4.5. Relay functions
Menu group level
Menu level
Menu level
Parameterisation level
Alarm relay 1, rEL-1:
Default: al-1
….
….
Each setpoint (optional) can be linked up via 4 alarms (by default). This can either be inserted
at activated alarms Al-1/4 or deactivated alarms Aln1/4. If LOGIC is selected, logical links are
available in the menu level Log-1 and Com-1. Access to these two menu levels is via LOGic, at all
other selected functions, these two parameters are overleaped. Via On/OFF the setpoints can be
activated/deactivated, in this case the output and the setpoint display are set/not set on the
front of the device. With [P] the selection is confirmed and the device changes into menu level.
Logic relay 1, Log-1
Default: or
The switching behaviour of the relay is defined via a logic link, the following schema describes
these functions with inclusion of AL-1 and AL-2. This parameter can only be selected if LOGIC was
selected under REl-1 .
As soon as a selected alarm is activated, the relay
operates. Equates to operating current principle.
A1 v A2
____ _ _
A1 v A2 = A1 Λ A2
The relay operates only, if no selected alarm is
active. Equates to quiescent current principle.
The relay operates only, if all selected alarms are
active.
A1 Λ a2
____ _ _
A1 Λ A2 = A1 v A2
As soon as a selected alarm is not activated, the
relay operates.
With [P] the selection is confirmed and the device changes into menu level.
Alarms for relay 1, CoM-1:
Default: a.i
….
The allocation of the alarms to relay 1 happens via this parameter, one alarm or a group of
alarms can be chosen. With [P] the selection is confirmed and the device changes into menu
level.
17
5. Setting up the device
Menu level
Parameterisation level
Alarm relay 2, rEL-2:
Default: al-2
….
….
Each setpoint (optional) can be linked up via 4 alarms (by default). This can either be inserted
at activated alarms Al-1/4 or deactivated alarms Aln1/4. If LOGIC is selected, logical links are
available in the menu level Log-1 and Com-1. Access to these two menu levels is via LOGic, at all
other selected functions, these two parameters are overleaped. Via On/OFF the setpoints can be
activated/deactivated, in this case the output and the setpoint display are set/not set on the
front of the device. With [P] the selection is confirmed and the device changes into menu level.
Logic relay 2, Log-2:
Default: or
The switching behaviour of the relay is defined via a logic link, the following schema describes
these functions with inclusion of AL-1 and AL-2:This parameter can only be selected if LOGIC was
selected under REl-1 .
As soon as a selected alarm is activated, the relay
operates. Equates to operating current principle.
A1 v A2
____ _ _
A1 v A2 = A1 Λ A2
The relay operates only, if no selected alarm is
active. Equates to quiescent current principle.
The relay operates only, if all selected alarms are
active.
A1 Λ a2
____ _ _
A1 Λ A2 = A1 v A2
As soon as a selected alarm is not activated, the
relay operates.
With [P] the selection is confirmed and the device changes into menu level.
Alarms for relay 2, CoM-2:
Default: a. 2
….
The allocation of the alarms to relay 2 happens via this parameter, one alarm or a group of
alarms can be chosen. With [P] the selection is confirmed and the device changes into menu
level.
Back to menu group level, rEt:
With [P] the selection is confirmed and the device changes into menu group level „–rel–“.
18
5. Setting up the device
5.4.6. Alarm parameters
Menu group level
Menu level
Menu level
Parameterization level
Dependency alarm 1, ALrM.1:
Default: actua
The dependency of alarm 1 can be related to special functions, in detail these are the current
measurand, the min-value or the max-value. EHtEr causes the dependency either by pressing
the [O]-key on the front of the housing or by an external signal via the digital input. With [P] the
selection is confirmed and the device changes into menu level.
Example:
By using the maximum value Alarm.1 = Max.va in combination with a threshold monitoring Fu-1 =
High, an alarm confirmation can be realised. Use the digital input for confirmation.
Threshold values / limit values, LI-1:
Default: 200.0
The limit value defines the threshold, that activates/deactivates an alarm.
Hysteresis for threshold values, HY-1:
Default: 0.0
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, Fu-1:
Default: high
A limit value undercut is selected with Louu (for LOW = lower limit value), a limit value
exceedance with High (for HIGH = higher limit value). If e.g. limit value 1 is on a threshold level
of 100 and allocated with function High, an alarm is activated by reaching the threshold level. If
the threshold value was allocated to Low, an alarm will be activated by undercutting the
threshold value, as long as the hysteresis is zero.
19
5. Setting up the device
Menu level
Parameterization level
Switching-on delay, ton-1:
Default: 000
Preset a delayed switching-on of 0-100 seconds for limit value 1.
Switching-off delay, toF-1:
Default: 000
Preset a delayed switching-off of 0-100 seconds for limit value 1.
Back to menu group level, rEt:
With [P] the selection is confirmed and the device changes into menu group level „–Al1–“.
The same applies to –Al2– to –Al4–.
20
6. Reset to factory settings
Programming interlock, run:
Menu group level
Description see page 10, menu level run
6. Reset to factory settings
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 „- - - - -“ appears in the display.
With reset, the default values of the program table are loaded and used for subsequent operation.
This sets the device back to the state in which it was supplied.
Caution! All application-related data are lost.
21
7. Alarms / Relays
7. Alarms / Relays
This device has 4 virtual alarms that can monitor one limit value in regard of an undercut or
exceedance. Each alarm can be allocated to an optional relay output S1-S2; furthermore alarms
can be controlled by events like e.g. min/max-value.
Function principle of alarms / relays
Alarm / Relay x
Deactivated, instantaneous value, min/max-value
Switching threshold
Threshold / limit value of the change-over
Hysteresis
Broadness of the window between the switching thresholds
Working principle
Operating current / Quiescent current
Operating current
By operating current the alarm S1-S2 is off
below the threshold and on on reaching the
threshold.
Quiescent current
By quiescent current the alarm S1-S2 is on
below the threshold and switched off on
reaching the threshold.
Switching-on delay
The switching-on delay is activated via an alarm
and e.g. switched 10 seconds after reaching the
switching threshold, a short-term exceedance of
the switching value does not cause an alarm,
respectively does not cause a switching
operation of the relay. The switching-off delay
operates in the same way, keeps the alarm / the
relay switched longer for the parameterised
time.
22
8. Technical data
8. Technical data
Housing
Dimensions
48x24x90 mm (BxHxD)
48x24x109 mm (BxHxD) incl. plug-in terminal
Panel cut-out
45.0+0.6 x 22.2+0.3 mm
Wall thickness
up to 3 mm
Fixing
screw elements
Material
PC Polycarbonate, black, UL94V-0
Sealing material
EPDM, 65 Shore, black
Protection class
standard IP65 (front side), IP00 (back side)
Weight
approx. 200 g
Connection
plug-in terminal; wire cross section up to 2.5 mm2
Display
Digit height
10 mm
Segment colour
red (optional green, yellow or blue)
Range of display
-19999 to 99999
Setpoints
one LED per setpoint
Overflow
horizontal bars at the top
Underflow
horizontal bars at the bottom
Display time
0.1 to 10.0 seconds
Input
Measuring range
Measuring error
Digit
Pt100 2-/3-/4-wire
-200.0…850.0°C
0.1 % of measuring range
±1
Pt100 2-/3-/4-wire
-328.0…1562.0°F
0.1 % 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
Output
Sensor supply
24 VDC / 50 mA; 10 VDC / 20 mA
Analog output
0/4-20 mA / burden ≤ 500 Ω; 0-10 VDC / burden ≥ 10 kΩ, 16 Bit
Switching outputs
2 PhotoMos (Closer)
Power pack
100-240 VAC 50/60 Hz / DC ± 10% (max. 5 VA)
24 VDC ± 10% galv. isolated (max. 4 VA)
Memory
EEPROM
Data life
≥ 100 years at 25°C
23
30 VDC/AC, 0.4 A
8. Technical data
Ambient conditions
Working temperature
0…50°C
Storing temperature
-20…80°C
Weathering resistance
0-80% relative humidity on years average without dew
EMV
EN 61326
CE-sign
Conformity according to directive 2004/108/EG
Safety standard
According to low voltage directive 2006/95/EG
EN 61010; EN 60664-1
24
9. Safety advices
9. Safety advices
Please read the following safety advices and the assembly in chapter 2 before installation and
keep it for future reference.
Proper use
The M3-7C-device is designed for the evaluation and display of sensor signals.
Danger!
Careless use or improper operation can result in
personal injury and/or can damage 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 M3-7C-device must be installed by a suitably qualified specialist (e.g. with a qualification in
industrial electronics).
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 6A 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 one another and do not lay them parallel with
each other. Position “go” and “return lines” next to one another. Where possible use twisted pair.
This way best measuring results are 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 device 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.
25
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 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.
"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.
M3_7CGB.pdf
26
update: 23.03.2015
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