Cable type RTD sensor
"PS" range

Such temperature sensors are suitable for a large number of applications and operating conditions (food industry, home automation, special tooling…).
Their design makes them easy and efficient to use ; the active part of generally small dimension is prolonged by a flexible cable of variable length.
The choice of materials depends on the operating conditions of the sensor.
Temperature range
-200°C to +500°C
Mechanical data
The choice of the materials for the encapsulation, the cable and the type of crimping are the essential criteria that determine the sensor performance: tensile strength, resistance to vibrations, resistance to the operating conditions....
Accuracy
1) of the sensing element
• PT100 - PT500 - PT1000
- Class A : + 0,15 + 0,002 [t°]
- Class B : + 0,30 + 0,005 [t°]
Reduced tolerances on request
• CTN / CTP thermistor or semiconducor : depending on the chosen components
2) of the sensor
Accuracy depends on the assembly: 2, 3 or 4 wires
Response time
Below indications correspond to a PS probe with platinum resistance, 1 x 100 Ohms at 0°C.
Tests performed in compliance with IEC 751 standard, on a 1 x PT100 RTD probe, with 3 wires, temperature range: –20°C + 100°C
Time needed to reach % of the temperature step to be measured
diameter |
50% |
90% |
3mm |
4.4 |
9.8 |
4 mm |
6.5 |
15.4 |
6 mm |
11.2 |
30.4 |
Applicable standards :
IEC 751
UTE 46202
Certifications
PS range RTD probes may be used in potentially explosive atmospheres, provided that the requirements of the European directive ATEX 94/9/CE and our EC type examination certificate LCIE 03 ATEX 6427X are complied with. More information ...

The most common dimensions are:
- 2mm < D < 8mm
- 0.1mm < L < 50m
- 20mm < L1 < 1m

- 2, 3, 4 wire assembly with 1x, 2x 100 at 0° platinum resistance
- NTC (negative temperature coefficient) or PTC (positive temperature coefficient) thermistor
- Semiconductor
- metallic (stainless steel, brass, aluminium) with annular, hexagonal or square crimping on cable
- overmoulded resin
- Epoxy resin
- Silicone
- Ceramics
- Teflon
- undismantable junction box
- bending spring
Its choice depends on :
- the temperature to be measured
- room temperature,
- the requested level of tightness
- compatibility with the working conditions of the sensor
Operating temperatures :
conductor / insulation |
Temperatures (°C) |
plated copper / PVC |
-10 / +105 |
nickel coated copper / Silicone |
-50 / +200 |
nickel coated copper / Teflon |
-50 / +260 |
nickel coated copper / glass fiber |
-10 / +250 |
- Bare threads or connector on request

Connecting diagram
Platinum resistance
2 wires 3 wires 4 wires
Recommendations
- Immersion length: diameter x 10
- the chosen connexion with 2, 3 or 4 wires and the required accuracy determine the "L" length
- 4-20 mA / Ohms converters may be used with such sensors