Temperature switch for monitoring of process temperatures
Thermophant T TTR31
+82 2 2658 7200
High reproducibility and long-term stability
Stainless steel housing 316L
Fast response times without reduced tip
Specs at a glance
Temperature range –50 to +150 °C (–58 to 302 °F) Display 4 digit, 14 segments display with color change Immersion length 30 mm, 50 mm, 100 mm, 200 mm (1.18",1.97", 3.94", 7.87") Response time <1.0 s (T50); <2.0 s (T90) Sensor ⌀ 6 mm (0.24") Accuracy <0.1 %
Thermophant T TTR31
Product / Version Price / pcs. in KRW Order code Process Connection , Length Power Supply; Output Electrical Connection 1 to 3 4 to 10 11+ G 1/2" / 1/4" / NPT 1/2" / 1/4"
12-30VDC; 1x switch PNP Plug M12 290,200 275,690 261,180 TTR31-A1A111xxxxAB Plug ISO4400 NPT1/2 290,200 275,690 261,180 TTR31-A3A111xxxxAB 12-30VDC; 2x switch PNP Plug M12 314,900 299,155 283,410 TTR31-A1B111xxxxAB 12-30VDC; switch PNP + 4-20mA Plug M12 371,600 353,020 334,440 TTR31-A1C111xxxxAB W/o, compr. fitting, 316L, L=>100mm insertion length Compr. fitting, to order separately.
12-30VDC; 1x switch PNP Plug M12 295,100 280,345 265,590 TTR31-A1A111AA2EAB Plug ISO4400 NPT1/2 295,100 280,345 265,590 TTR31-A3A111AA2EAB 12-30VDC; 2x switch PNP Plug M12 319,800 303,810 287,820 TTR31-A1B111AA2EAB 12-30VDC; switch PNP + 4-20mA Plug M12 376,500 357,675 338,850 TTR31-A1C111AA2EAB
Product / Version Price / pcs. in KRW Order code Collar welding boss d6 PEEK + screw moveable with sealing taper, washer + pressure screw G1/2, material of wetted parts: 316L, PEEK, max. Prozessdruck: 10 bar (145 psi) 67,600 51004751 Cable M12x1 l=5m 5m cable 4x 0.34 mm2, molded PVC angled connector, M12x1 connector screw Cu Sn/Ni, IP67. 14,100 51005148 Configuration kit TXU10- for PC-programmable devices. set-up programme+interface cable for PC with USB-Port. 4 pin plug + ReadWin2000 145,900 TXU10-AA
Prices valid until 30.06.2020 in EUR per unit (not including shipping and applicable sales tax). See
Endress+Hauser Terms and Conditions
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 dataSupply voltage
Supply voltage 12 to 30 V DC (reverse polarity protection) Current consumption Without load < 60 mA, with reverse polarity protectionOutput Output signal 1 or 2 × PNP or PNP with 4 to 20 mA Voltage drop PNP ≤2 V Overload protection Automatic testing of switching currentPerformance 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 %Sensor Sensing element 1 × Pt100, four-wire Tolerance Class A to IEC 751 Medium temperature –50 to +150 °C (–58 to 302 °F) Diameter 6 mm (0.24”)Operating conditions Ambient temperature –40 to +85 °C (–40 to +185 °F) 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 21Materials Process connection and protection pipe
316L / Ra ≤ 0.8 µm;
Operating elements 3 buttons or PC and software
Dimensions in mm (in inches)
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