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Sensors TOPGN11

TOPGN11 Sensors – Data Sheet

Sensor with replaceable measuring insert

>> 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 thermo well.

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Temperature range / sensing element
-200 to +550ºC Pt100 Class B
-40 to +550ºC K,J Class 2


Measuring insert
pipe or mineral insulated version
2-, 3-, 4-wire connection (for Pt100)
2-, 3-wire connection (for 2xPt100)


material: steel 1.4541
length (mm): 85 to 2000


Connection head
BA, IP55, -40 to 100ºC


Process connection
M20x1,5; G½

Other parameters acc. to requirements



Temperature transmitter application

Temperature transmitter with standard 4 to 20mA, 0 to 10V output signals and with the HART or PROFIBUS communication protocols can be mounted in the connection head. Transmitter installation is carried out directly on the measuring insert (in place of a terminal block) or in the high cover connection head (solution used to enable installation of two transmitters).

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÷20mA. This version makes the local temperature reading and transmission of the analogue signal possible.

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. Please contact our technical sales team for further information.



Standard length
Immersion length L (mm) Measuring insert length Lw (mm)
100 255
160 315
200 355
250 405
Maximum pressure
Length L (mm) Maximum pressure (MPa)
ø9 ø11
do 160 6,4 11,8
do 250 4,9 6,9
Values specified on the basis of the maximum speed of steam flow: 25m/s and water flow: 3 m/s with thermowell standard diameter 9 mm.
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|)
C -196 to +600 T = ±(0,06 + 0,01 |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  


Tolerance for thermocouple classes acc. to PN-EN 60584
Thermocouple type Class 1
Range of application (°C) Tolerance (°C)
J Fe-CuNi from -40 to +375 from +375 to +750 ±1,5
±0,004 |t|
K NiCr-NiAl from -40 to +375 from +375 to +1000 ±1,5
±0,004 |t|


Thermocouple type Class 2
Range of application (°C) Tolerance (°C)
J Fe-CuNi from -40 to +333 from +333 to +750 ±2,5±0,0075 |t|
K NiCr-NiAl from -40 to +333 from +333 to +1200 ±2,5±0,0075|t|



Connection Heads

Connection head type BA in standard.Possibility to mount the connection head of different type.

Connection head BA (Standard)

Connection head BA (Standard)

Connection Head Naa (option)

Connection Head Naa (option)

Connection Head Dana (option)

Connection Head Dana (option)

Connection Head Danaw (option)

Connection Head Danaw (option)

Connection Head DANAW-win (option)

Connection Head DANAW-win (option)


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