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TOPE 361-series

TOPE 361 datasheet – Data Sheet

Temperature Sensors for Measurement of Machinery and Device Parts

>> Sensor suitable for temperature measurement of liquid and gaseous media in high pressure conditions. This Sensor consists of sensing element placed in the thin-walled acid-resistant sheath with connector and flexible lead wire.

TOPE-361, 362, TTJE-361, 362, TKE-361, 362

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Temperature range / sensing element
-50 to 400ºC Pt100 class B
-40 to 400ºC K, J class 2
material: steel 1.4541
diameter d (mm): 3, 4, 5, 6, 8
length L(mm): 30 to 1000
Lead wire
stranded Cu wire or stranded thermocouple wire: 0,22mm2
fiberglass insulation, metal overbraid
length L [m]: 1,5 (standard)
Cu wire resistance~0,14 ?/m = ~0,36ºC
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, in place of a terminal block, or in the control cabinet.

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


Compensation / thermocouple wire insulations
Insulation material Operating temperature range[°C] Properties
PCW (PCV) -10 to 105 Applied in mild environmental conditions.Waterproof and flexible.
Yc- polyvinyl chloride -10 to 105 Applied in mild environmental conditions.Waterproof and flexible.
FEP-teflon -50 to 200 Resistant to oils, acids and other aggressive liquids. Good flexibility.
Si-silicone -50 to 180 Waterproof, flexible. Applied in high humidity conditions.
Ws-fiberglass -60 to 400 Good resistance to high temperature. Low resistance to liquid penetration.
Notes: Additionally, copper or steel braids/shields are used on wires to prevent electrical noises, Increasing, at the same time, wire insulation resistance to mechanical damages. In case of longer wire lengths grounding may be needed to minimize the noise in measurement circuit
Response time to temperature change
Thermowell diameter (mm) Response time [s]
ø12 t0,5 = 12
t0,9 = 55
ø15 t0,5 = 20
t0,9 = 850,9


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 -0 to +150 T = ±(0,10 + 0,0017 |t|)
A -30 to +300 T = ±(0,15 + 0,002 |t|)
B -50 to +500 T = ±(0,3 + 0,005 |t|)

|t|- absolute value of temperature.

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


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|


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