Temperature switch for measurement of process temperatures

Thermophant T TTR31

11-35 Pcs.



  • Three buttons for local set-up, via ReadWin 2000 configuration software or FieldCare

  • High reproducibility and long-term stability

  • Stainless steel housing 316L

  • Fast response times without reduced tip

Temperature range:
-50 to +150 C

4 digit, 14 segments display

with colour change

Immersion length:

50 mm, 100 mm, 200 mm

Response time:

< 1.0 s (T50); < 2.0 s (T90)


6 mm


< 0.1 %

Product/VersionPrice/pcs. in NZ$Order code
Thermophant TTR31 with PNP + analog output
Power Supply; OutputImmersion lengthElectrical ConnectionProcess Connection1 to 34 to 1011 to 35
12-30VDC; switch PNP + 4-20mA50mmPlug M121/2" BSP thread510.-474.-449.-TTR31-A1C111AE1BAB
Plug and cable to be ordered as 'accessory'.
The above models are ex stock. Please ask for pricing and delivery time of other TTR31 versions.
Product/VersionPrice/pcs. in NZ$Order code
Accessories1 to 34 to 1011 to 35
M12 right-angle plug with 4-core, 5m PVC cable30.-52010285
Configuration kit TXU10- for PC-programmable devices. set-up programme+interface cable for PC with USB-Port.300.-TXU10-BA

Prices are net, ex store Auckland, GST additional and valid until 30/9/2016.
EMC's standard Terms and Conditions of Supply are applicable.


The Thermophant T TTR31 is a temperature switch for the monitoring, display and control of process temperatures and is available with a wide range of process connections.


A platinum sensor located at the measuring tip changes its resistance value depending on the temperature. This resistance value is recorded electronically. The conversion of the resistance value into a temperature measurement signal is defined by the international standard IEC 751. 

Technical data

Supply voltage
  • Power supply Ub
12 to 30 V DC
  • Current consumption
Without load < 60 mA, reverse polarity protection
  • Output signal
PNP with 4 to 20 mA
  • Voltage drop PNP
≤ 2 V
  • Overload protection
Automatic testing of switching current
Performance characteristics
  • Reference conditions
According to DIN IEC 60770/61003
  • Measured error
Electronics max. 0.2 K or 0.16 % sensor Class A
  • Long-term drift
≤ 0,1 % per year
  • Sensor response time
T50 = < 1.0 s; T90 = < 2.0 s
  • Analog output
Non-linearity ≤ 0.2 %
  • Sensing element
1Pt100, four-wire
  • Tolerance
Class A to IEC 751
  • Medium temperature
-50 to +150 C
  • Diameter
6 mm
Operating conditions
  • Ambient temperature
-40 to +85 C
  • Protection
IP 65 (complete housing)
  • EMC
Interference emiss. as per IEC 61326 Series, class B electrical equipment, interference immunity as per IEC 61326 Series, app. A (indust. use) and NAMUR Recomm. NE 21
  • Process connection and protection pipe
316L/Ra ≤ 0.8 m; housing 316L
  • Operating elements
3 buttons or PC and software
  • Desina compliant

Dimensions (in mm)

L = sensor length 50 mm/100 mm/200 mm

Installation according to operation instructions

Process connections (Dimensions in mm)

ISO 228 G A, 316L

Electrical connection

DC Voltage version with M12 connector
A3: PNP switch output with additional analog output