Operating instructions
Control monitor for
temperature sensors
TR2432
704774/00 04/2011
UK
2
Contents
1 Preliminary note....................................................................................................3
1.1 Symbols used .................................................................................................3
2 Safety instructions ................................................................................................4
3 Functions and features .........................................................................................4
4 Function ................................................................................................................4
4.1 Communication, parameter setting and evaluation ........................................4
4.2 Switching function ..........................................................................................5
4.3 Analogue function ...........................................................................................6
5 Installation ............................................................................................................7
6 Electrical connection.............................................................................................8
7 Operating and display elements ...........................................................................9
8 Menu...................................................................................................................10
8.1 Menu structure .............................................................................................10
8.2 Explanation of the menu ............................................................................... 11
9 Parameter setting ...............................................................................................12
9.1 General parameter setting ............................................................................12
9.2 Configuration of the display (optional) .......................................................... 14
9.3. Setting of the output signals for OUT1 ........................................................14
9.3.1 Setting of the output function ...............................................................14
9.3.2 Setting of the switching limits ..............................................................14
9.4 Setting of the output signals for OUT2 .........................................................14
9.4.1 Setting of the output function ...............................................................14
9.4.2 Scaling of the analogue value .............................................................14
9.5 User settings (optional) ................................................................................15
9.5.1 Setting the measurement method .......................................................15
9.5.2 Zero point calibration ........................................................................... 15
9.5.3 Setting of the delay time for OUT1 ......................................................15
9.5.4 Setting of the error behaviour of the outputs .......................................15
9.5.5 Setting of the switching logic for OUT1 ...............................................15
9.6 Service functions ..........................................................................................15
9.6.1 Reading of the min/max values for the system temperature ...............15
9.6.2 Reset of all parameters to factory setting ............................................16
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1 Preliminary note
1.1 Symbols used
Instruction
> Reaction, result
[…] Designation of pushbuttons, buttons or indications
Cross-reference
Important note
Non-compliance can result in malfunctions or interference.
10 Operation ..........................................................................................................16
10.1 Reading of the set parameters ...................................................................16
10.2 Fault indication ...........................................................................................16
11 Scale drawing ...................................................................................................17
12 Technical data ...................................................................................................18
12.1 Setting ranges ............................................................................................19
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2 Safety instructions
• Please read this document prior to set-up of the unit. Ensure that the product is
suitable for your application without any restrictions.
• Improper or non-intended use may lead to malfunctions of the unit or to un-
wanted effects in your application. That is why installation, electrical connec-
tion, set-up, operation and maintenance of the unit must only be carried out by
qualified personnel authorised by the machine operator.
• Checkthecompatibilityoftheproductmaterials(→12Technicaldata)withthe
media to be measured in all applications.
3 Functions and features
With temperature sensors connected the unit monitors the system temperature in
machinery and plant.
Connectable temperature sensors:
• Temperature sensors TM, TS or TT.
• Resistance thermometer RTD (Pt 100 or Pt 1000).
The unit automatically detects the connected sensor type and configures itself ac-
cordingly The electrical measuring method (3-wire or 4-wire sensor) is determined
viathemenusetting(→9.5.1).
4 Function
4.1 Communication, parameter setting and evaluation
• The unit displays the current system temperature.
• It generates 2 output signals according to the parameter setting.
OUT1 Switching signal for system temperature limit value.
OUT2 Analogue signal for system temperature.
• It moreover provides the process data via IO-Link.
• The unit is laid out for fully bidirectional communication. So, the following op-
tions are possible:
- Remote display: Reading and displaying the current system temperature.
- Remote parameter setting: Reading and changing current parameter settings
with the FDT service program ifm Container or via IO-Link.
- Using the FDT service program ifm Container, the current parameter settings
can be stored and transferred to other units of the same type.
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The program library of the available DTM objects can be found at www.ifm.com
→Service→Download.
Device-specific parameter lists for IO-Link parameter setting are available at:
www.ifm.com→Selectyourcountry→Datasheetdirect:
4.2 Switching function
OUT1 changes its switching state if it is above or below the set switching limits
(SP1, rP1). The following switching functions can be selected:
• Hysteresisfunction/normallyopen:[OU1]=[Hno](→fig.1).
• Hysteresisfunction/normallyclosed:[OU1]=[Hnc](→fig.1).
First the set point (SP1) is set, then the reset point (rP1) with the requested differ-
ence.
• Windowfunction/normallyopen:[OU1]=[Fno](→fig.2).
• Windowfunction/normallyclosed:[OU1]=[Fnc](→fig.2).
The width of the window can be set by means of the difference between SP1 and
rP1. SP1 = upper value, rP1 = lower value.


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

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1 2
T = system temperature; HY = hysteresis; FE = window
When set to the window function the set and reset points have a fixed hysteresis
of 0.25 % of the measuring range. This keeps the switching state of the output
stable if the temperature varies slightly.
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4.3 Analogue function
• [OU2] defines if the set measuring range is provided as a 4...20 mA signal
([OU2] = [ I]) or a 0...10 V signal ([OU2] = [U]).
• Analogue start point [ASP] defines at which measured value the output signal
is 4 mA / 0 V.
• Analogue end point [ AEP] defines at which measured value the output signal
is 20 mA / 10 V.
Minimum distance between [ASP] and [AEP] = 5 K.
Current output 4...20 mA
Factory setting Measuring range scaled











In the set measuring range the output signal is between 4 and 20 mA.
The analogue output also indicates:
•Temperature above the measuring range: Output signal 20...20.5 mA.
•Temperature below the measuring range: Output signal drops to max. 3.8 mA.
•If the detection zone is not reached or is exceeded (T < -60°C or T > +320°C), the output
behavesaccordingtotheparametersetinFOU2(→9.5.3).
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Voltage output 0...10 V
Factory setting measuring range scaled
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
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
In the set measuring range the output signal is between 0 and 10V.
The analogue output also indicates:
•Temperature above the measuring range: Output signal 10...10.3 V.
•If the detection zone is not reached or is exceeded (T < -60°C or T > +320°C), the output
behavesaccordingtotheparametersetinFOU2(→9.5.4).
5 Installation
Connect the unit to a temperature sensor and fix it with the help of mounting accessories.
The following components are available as accessories
order no.
Mounting set for direct connection of temperature sensors TT E30017
Mounting clamp Ø 34 mm, PBT E10017
Mounting clamp Ø 34 mm, PA E10193
Mounting device 2 way, POM E30078
Mounting device 3 way, POM E30079
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6 Electrical connection
The unit must be connected by a qualified electrician.
The national and international regulations for the installation of electrical
equipment must be adhered to.
Voltage supply to EN 50178, SELV, PELV.
Disconnect power.
Connect the unit as follows:
1
2: OUT2
4: OUT1
L
L
+
3
4
2
1
BU
BK
WH
BN
L
L
+
3
4
2
1
BU
BK
WH
BN
432
ϑ
432
ϑ
432
ϑ
1
1
pnp
npn
321
3
1
2
4
4
2
1
3
1: two-wire sensor
2: three-wire sensor
3: four-wire sensor
connection for
voltage supply
and output
signals
Pin 1 Ub+
Pin 3 Ub-
Pin 4 (OUT1)
•Binary switching output temperature monitoring.
•Data channel for bidirectional communication.
Pin 2 (OUT2) •Analogue signal for temperature.
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connection for
temperature
sensor
2-wire sensor
Menu setting: Mmod = 4w, links between 1 / 2 and 3
/ 4.
A wiring fault can be corrected in the menu COF.
3-wire sensor
Menu setting: Mmod = 3w, link between 1 / 2.
Themaximumcableresistanceof10Ωpercoremust
not be exceeded (this corresponds to a cable length of
approx. 80 m for a wire cross-section of 0.14mm²).
4-wire sensor Menu setting: Mmod = 4w.
Core colours of ifm sockets:
1 = BN (brown), 2 = WH (white), 3 = BU (blue), 4 = BK (black)
7 Operating and display elements
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 
1 to 8: Indicator LEDs
- LED 1: Current temperature in °C.
- LED 2: Current temperature in °F.
- LED 8 = Switching status output 1.
9: Alphanumeric display, 4 digits
- Display of the current system temperature.
- Indication of the parameters and parameter values.
10: Set button
- Setting of the parameter values (scrolling by holding pressed; incrementally by pressing
once).
11: Mode/Enter button
- Selection of the parameters and acknowledgement of the parameter values.
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8 Menu
8.1 Menu structure

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8.2 Explanation of the menu
SP1/rP1 Upper / lower limit value for system temperature at which OUT1 switches.
OU1 Output function for OUT1:
Switching signal for the temperature limit values: Hysteresis function [H ..] or
window function [F ..], either normally open [. no] or normally closed [. nc].
OU2 Output function for OUT2:
Analogue signal: 4...20 mA [I] or 0...10 V [U].
ASP Analogue start value for temperature.
AEP Analogue end value for temperature.
Mmod Measurement method (2-wire, 3-wire or 4-wire temperature sensors).
EF Extended functions / opening of menu level 2.
HI Maximum value memory for system temperature.
LO Minimum value memory for system temperature.
COF Zero-point calibration.
dS1 Switch-on delay for OUT1.
dr1 Reset delay for OUT1.
FOU1 Behaviour of output 1 in case of an internal fault.
FOU2 Behaviour of output 2 in case of an internal fault.
P-n Switching logic for OUT1: PNP or NPN.
diS Update rate and orientation of the display.
Uni Unit of measurement for system temperature.
rES Restore factory settings.
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9 Parameter setting
During parameter setting the unit remains in the operating mode. It continues its
monitoring function with the existing parameters until the parameter setting has
been completed.
9.1 General parameter setting
3 steps must be taken for each parameter setting:
1
Selection of the parameter
Press [Mode/Enter] until the re-
quested parameter is displayed.
 
2
Setting of the parameter value
Press [Set] and keep it pressed.
> Current setting value of the param-
eter flashes for 5 s.
> After 5 s: Setting value is changed:
incrementally by pressing the button
once or continuously by keeping the
button pressed.
 
Numerical values are incremented continuously. For reducing the value: Let the dis-
play move to the maximum setting value. Then the cycle starts again at the minimum
setting value.
3
Acknowledgement of the parameter
value
Press [Mode/Enter] briefly.
> The parameter is displayed again.
The new setting value is stored.
 
Setting of other parameters
Start again with step 1.
Finishing the parameter setting
Press [Mode/Enter] several times until the current measured value is displayed or wait
for 15
s.
> The unit returns to the operating mode.
•If [SLoc] is displayed when attempting a modification of a parameter value, the sensor is
locked via software. This locking can only be removed via a parameter setting software.
•In case of parameter setting with the user interface of the ifm Container program, the
values can be directly entered in the specified fields.
•ForIO-Linkparametersetting→device-specificparameterlistsat:www.ifm.com→Select
yourcountry→Datasheetdirect:
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• Change from menu level 1 to menu level 2:
Press [Mode/Enter] until [EF] is
displayed.
If the submenu is protected with an ac-
cess code, [Cod1] flashes in the display.
Press [Set] and keep it pressed until
the valid code no. is displayed.
Press [Mode/Enter] briefly.
On delivery by ifm electronic: no access
restriction.
 
Press [Set] briefly.
> The first parameter of the sub-menu
is displayed (here: [HI]).
 
With the user interface of the ifm Container program:
Activate the [EF] button.
If menu level 2 is protected by an access code, the input field for the code no. is
activated.
Enter valid code no.
• Locking / unlocking
The unit can be locked electronically to prevent unintentional settings.
Make sure that the unit is in the
normal operating mode.
Press [Mode/Enter] + [Set] for 10 s.
> [Loc] is displayed.
 

During operation: [Loc] is briefly displayed if you try to change parameter values.
For unlocking:
Press [Mode/Enter] + [Set] for 10 s.
> [uLoc] is displayed.
 

On delivery: unlocked.
• Timeout:
If no button is pressed for 15 s during parameter setting, the unit returns to the operat-
ing mode with unchanged values.
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9.2 Configuration of the display (optional)
Select [Uni] and set the unit of measurement:
[°C] or [°F].
Select [diS] and set the update rate and orientation of the display:
- [d1]: Update of the measured values every 50 ms.
- [d2]: Update of the measured values every 200 ms.
- [d3]: Update of the measured values every 600 ms.
- [rd1], [rd2], [rd3]: Display as for d1, d2, d3; rotated by 180°.
- [OFF]: The display is switched off in the operating mode.
9.3. Setting of the output signals for OUT1
9.3.1 Setting of the output function
Select [OU1]and set the function:
- [Hno] = Hysteresis function / normally open.
- [Hnc] = Hysteresis function / normally closed.
- [Fno] = Window function / normally open.
- [Fnc] = Window function / normally closed.
9.3.2 Setting of the switching limits
Select [SP1] and set the value at which the output switches.
Select [rP1] and set the value at which the output switches off.
rP1 is always smaller than SP1. The unit only accepts values which are
lower than the value for SP1.
9.4 Setting of the output signals for OUT2
9.4.1 Setting of the output function
Select [OU2] ] and set the function:
- [I] = temperature-proportional current signal (4…20 mA).
- [U] = temperature-proportional voltage signal (0…10 V).
9.4.2 Scaling of the analogue value
Select [ASP] and set the measured value at which 4 mA / 0 V is pro-
vided.
Select [AEP] and set the measured value at which 20 mA / 10 V is
provided.
Minimum difference between ASP and AEP = 5 K.
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9.5 User settings (optional)
9.5.1 Setting the measurement method
Select [Mmod] and set the value:
- [3w] for 3-wire measurement.
- [4w] for 2-wire and 4-wire measurement
9.5.2 Zero point calibration
Select [COF] and enter value. Setting range:
-10.0...10.0 °C in steps of 0.1 °C.
-18.0 ...18.0 °F in steps of 0.1° F.
The internal measured value "0" is shifted by this value.
9.5.3 Setting of the delay time for OUT1
[dS1] = switch-on delay / [dr1] = switch-off delay.
Select [dS1] or [dr1] and set a value between 0.1 and 50 s (at 0.0 the
delay time is not active).
9.5.4 Setting of the error behaviour of the outputs
Select [FOU1] and set the value:
- [On] = Output 1 switches ON in case of a fault.
- [OFF] = Output 1 switches OFF in case of a fault.
Select [FOU2] and set the value:
- [On] = The analogue signal goes to the upper limit value (21.0 mA /
10.6 V).
- [OFF] = The analogue signal goes to the lower limit value (3.5m A /
0 V).
9.5.5 Setting of the switching logic for OUT1
Select [P-n] and set [PnP] or [nPn].
9.6 Service functions
9.6.1 Reading of the min/max values for the system temperature
Select [HI] or [LO], briefly press [Set].
[HI] = maximum value, [LO] = minimum value.
Delete memory:
Select [HI] or [LO].
Press [Set] and keep it pressed until [----] is displayed.
Press [Mode/Enter] briefly.
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9.6.2 Reset of all parameters to factory setting
Select [rES].
Press [Set] and keep it pressed until [----] is displayed.
Press [Mode/Enter] briefly.
We recommend taking down your own settings in the table before carrying
outareset(→13Factorysetting).
10 Operation
After power on, the unit is in the Run mode (= normal operating mode). It carries
out its measurement and evaluation functions and provides output signals accord-
ing to the set parameters.
Operatingindications→Chapter7Operatinganddisplayelements.
10.1 Reading of the set parameters
Press [Mode/Enter] until the requested parameter is displayed.
Press [Set] briefly.
> The unit displays the corresponding parameter value for about 15 s. After
another 15 s the unit returns to the Run mode.
10.2 Fault indication
[OL] Temperature too high (measuring range exceeded by more than 3% of the final
value of the measuring range).
[UL] Temperature too low (measuring range below the final value of the measuring
range by more than 10%).
[Err] •No temperature sensor connected.
•Fault or short circuit in the temperature sensor, wire break.
•Detection zone is exceeded (T < -60°C or T > +320°C).
[SC1] Short circuit in OUT1.
The output is switched off as long as the short circuit persists.
[Loc] Setting pushbuttons of the unit locked, parameter change rejected.
[SLoc] Unit locked via software, parameter change rejected.
[PARA] Settingvalueofaparameteroutsidethevalidrange→theunitisnotreadyfor
operation. The error may occur with IO-Link parameter setting.
If an invalidly set parameter is activated, [PARA] is displayed instead of the
parameter value.
The messages Err, PARA and SC1 are shown even if the display is switched off.
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Response of the outputs in case of a parameter setting fault [PARA]:
OUT1 OUT2
Invalid setting [OU1] / [OU2] OFF OFF
Invalid setting [FOU1] / [FOU2] OFF OFF
Invalid setting [P-n] OFF OFF
Invalid setting of other parameters acc. to setting [FOU1] acc. to setting [FOU2]
Response of the analogue output in case of a fault [Err], [OL], [UL]:
The set measuring range is not
reached.
→Lineardropofthecurrentsignalupto
3.8 mA; the voltage signal remains at 0 V.
The set measuring range is exceeded. →Linearincreaseoftheanaloguesignalto
20.5 mA / 10.3 V.
Detection zone of the sensor is not
reached or is exceeded (T < -60°C or T
> +160°C).
→Errormessage[Err];
Analogue signal acc. to setting [FOU2].
11 Scale drawing







Dimensions in mm
1: Display, 2: LEDs, 3: Programming button, 4: Connector for temperature sensor (M12x1)
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12 Technical data
Measuring range [°C / °F] ...................................................................... -40...300 / -40...572
Communication interface ................................................................................... IO-Link 1.0
Baud rate [kBAUD] ........................................................................................................ 38.4
Operating voltage [V] ........................................................................................... 18...32 DC
Current rating [mA] ......................................................................................................... 250
Short-circuit protection (pulsed); protected against reverse polarity and overload
Integrated watchdog
Voltage drop [V] ...............................................................................................................< 2
Current consumption [mA] .............................................................................................< 50
Response time switching output [ms] .............................................................................130
Analogue output ............................................................................... 4 ... 20 mA / 0 ... 10 V
Max.loadcurrentoutput[Ω] ....................................................................... (Ub - 10 V) x 50
Min.loadwithvoltageoutput[Ω] ................................................................................. 2000
Response time analogue output [ms] .............................................................................384
Accuracy
- switching output [K] .....................................................................................................± 0.3
- analogue output [K] .....................................................................................................± 0.3
- display [K] ....................................................................................................................± 0.3
Resolution
- switching output [K] ........................................................................................................0.1
- analogue output [K] .....................................................................................................< 0.1
- display [K] .......................................................................................................................0.1
Housing materials ................................... stainless steel (304S15); EPDM/X (Santoprene);
PBT (Pocan); FPM (Viton)
Operating temperature [°C] ..................................................................................... -25...70
Storage temperature [°C] ......................................................................................... -40...85
Pressure resistance [bar].................................................................................................300
Protection rating .......................................................................................................... IP 67
Protection class ..................................................................................................................III
Shock resistance [g] .............................................................. 50 (DIN / IEC 68-2-27, 11 ms)
Vibration resistance [g] .................................................. 20 ( DIN / IEC 68-2-6, 10-2000 Hz)
EMC EN 61000-4-2 ESD: ...................................................................... 4 kV CD / 8 kV AD
EN 61000-4-3 HF radiated: ............................................................................ 10 V/m
EN 61000-4-4 Burst: ........................................................................................... 2 kV
EN 61000-4-5 Surge: .......................................................................................... 1 kV
EN 61000-4-6 HF conducted: ............................................................................ 10 V
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12.1 Setting ranges
TEMP
SP1 rP1 ASP AEP
∆T
min max min max min max min max
°C -39.8 300.0 -40.0 299.8 -40.0 295.0 -35.0 300.0 0.1
°F -39.6 572.0 -40.0 571.6 -40.0 563.0 -31.0 572.0 0.1
∆T=stepincrement
13 Factory setting
Factory setting User setting
SP1 60.0
rP1 50.0
OU1 Hno
OU2 I
ASP -40.0
AEP 300.0
Mmod 4w
COF 0.0
dS1 0.0
dr1 0.0
dS2 0.0
dr2 0.0
FOU1 OFF
FOU2 OFF
P-n PnP
diS d2
Uni °C
Further information at www.ifm.com