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Mica band heaters data sheet – Data Sheet

Temperature Sensors with Replaceable Measuring Inserts TOPP-11, TTJP-11, TTKP-11

>> This sensor is used for temperature measurement of liquid and gaseous media. The temperature sensor design (replaceable measuring insert) is suitable for various industrial applications. Replacement of the measuring insert does not cause the technological installation damage. Spring-loaded insert ensures an excellent connection with the bottom of the sensor thermowell.

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Temperature range / sensing element
-200 to 550ºC Pt100 class B
-40 to 700ºC J class 2
-40 to 900ºC K class 2
Measuring insert
2-, 3-, 4-wire connection (for Pt100)
2-, 3-wire connection (for 2xPt100)
material: steel 1.4541 for (mm): ø9; 11; 12; 14; 15
material: steel 1.4841 for (mm): ø15
material: steel 1.4762 for (mm): ø15
length (mm): 85 to 2000
Connection head
BA, IP55, -40 to 100ºC
Sensor mounting fittings
UG-1, UG-8,
UZ-11, UZ-21 (only for ø15mm)


Temperature transmitter application

Temperature transmitter with standard 4 to 20mA, 0 to 10V output signals and with the HARTor PROFIBUS communication protocols can be mounted in the connection head, in place of a terminal block, or in the control cabinet.

Local display application

The temperature sensor can be equipped with the connection head enabling the local LED display installation.The local display operates in current loop 4 to 20mA.This version makes the local temperature

ATEX Design

For explosion zones adequate sensor constructions are available:

  • Intrinsically safe Exi
  • flameproof Exd

These designs possess EC-Type Examination Certificate in compliance with 94/9/EC(ATEX) directive

Non-standard design

Immersion length, process connection thread, shape and material of the thermowell, connection head type and the measuring insert parameters can be customized per client request

Mounting fittings


Standard length
Immersion length L (mm) Measuring insert length Lw (mm)
250 275
350 375
500 525
710 735


Response time to temperature change
Thermowell diameter (mm) Response time [s]
ø12 t0,5 = 45
t0,9 = 155
ø15 t0,5 = 57
t0,9 = 1700,9
Tolerance for classes of sensors with resistors Pt acc. to PN-EN 60751
Sensor classes
  Range of application (°C) Formula for calculating acceptable deviations (°C)
AA -50 to +250 T = ±(0,10 + 0,0017 |t|)
A -100 to +450 T = ±(0,15 + 0,002 |t|)
B -196 to +600 T = ±(0,3 + 0,005 |t|)
|t|- absolute value of temperature.


Measurement circuit
1 x Pt100
2-wire 3-wire 4-wire
x x x
2 x Pt100
2-wire 3-wire 4-wire
x x  
1 x TC 2 x TC  
2-wire 2-wire  
x x  


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