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Sensors PTOP

Sensors PTOP-series – Data shee – Data Sheet

Temperature sensor with replaceable measuring insert, suitable for various industrial applications

>> Temperature sensor suitable for measurement in hard-to-reach places and in applications requiring the use of flexible sensors with small diameters, and low thermal inertia.

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Technical data
Constructional version
with head mounted transmitter AP type
with connection head BA type (IP55, -40 to 100°C)
with exposed wire ends 20mm BT type
with sleeve T type


Material steel 1.4571
Diameter d (mm) ø3; ø6
Length L (mm) acc. to requirements
Min. bending radius (mm) 3xd; min. 50mm from the end.


Temperature range / sensing element
-200 to +550ºC Pt100 class B ø6
-50 to +500ºC Pt100 class B ø3



PTOP sensor drawing

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


Compensation / thermocouple wire insulations
Insulation material Operating temp. 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.
Si-silicone -50 to +180 Waterproof, flexible. Applied in high humidity.
Ws-fiberglass -60 to +400 Good resistance to high temperatures.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



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
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|



Connection heads

Connection head type BA (standard). Possibility to mount aconnection head of different type.


Connection Head BA (standard)


Connection Head Dana (option)


Connection Head DANAW (option)


Connection DANAW-WIN (option)


Connection NAA (option)

IHP works together with many leading industrial companies in Europe. As a partner and supplier, we are known for our flexibility and our high quality products and services. IHP has a business valued model and creates successful long-term relationships.



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