VST temperature sensor

For alternative drive and storage systems

The VST temperature sensor is used in applications where a high degree of flexibility and specific adaptations are required.

Due to the compact design and the use of fluid-specific materials, the VST achieves excellent results in applications where space is critical, as well as under harsh environmental conditions. The specially developed measuring element not only ensures fast response times but also a high degree of accuracy. The sensors are available in a resistive version with an NTC element or PT100/PT1000 element.

The transmitter version of the VST with a linearised, analogue output signal also offers the electrical protection and diagnostic functions typical to the automotive industry. Special fluid and pressure-resistant designs are available for use in hydrogen applications, including those suitable for high-pressure tank systems up to 900 bar.

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FIELDS OF APPLICATION
  • Tank and storage systems
  • H2 applications and special fluids
  • Cooling-water systems
  • Fuel cell
FEATURES

Specially developed measuring element and evaluation electronics

  • Fast response times
  • High accuracy
  • Transmitter version with voltage output available

Use of materials with proven fluid compatibility

  • Very good fluid compatibility
  • Suitable for high ambient temperatures
  • EC79-tested version available

Compact design

  • Suitable for high fluid pressures
  • Excellent integration into applications where space is critical
TECHNICAL SPECIFICATION
Measuring ranges
Measuring range 55–180 °C
Measuring element NTC
PT100 / PT1000
   
Electrical characteristics
Supply voltage 1) 5 V
Output signal Resistance signal NTC Standard 2)
PT100/PT1000
0.5–4.5 V, ratiometric
Overvoltage protection 1) ± 30 V
Reverse-polarity resistance 1) for all pins
   
Mechanical characteristics
Plug material PPS
Fluid-contacting parts Stainless steel, 1.4404
Connection thread Wrench size 19, M10×1
male thread 3)
Electrical connection MQS connector 4)
Installation position Any
Weight approx. 20 g
   
Accuracy
Total error < 0.5 K (25 °C)
Response time (t90) < 2 s (in liquid medium)
   
Environmental conditions
Fluid temperature range -55–180 °C 5)
Ambient temperature range -40–170 °C 5)
Fluid pressure range 0–30 bar 0–900 bar 6)
Fluid compatibility Miscellaneous oils, DI water, H2
ESD handling (ISO 10605-5-2) ± 3 kV to contacts
± 8 kV to housing
 
1) Valid for the transmitter version with voltage output
2) NTC standard means RN at 25 °C in the 2–100 k Ω range; others available on request
3) Other threads available on request
4) Other electrical connections available on request
5) Valid only for resistance output
6) High pressure version

Similar sensors

CCT pressure/temperature sensor

The CCT pressure/temperature sensor is used in air-conditioning systems – especially in vehicles with alternative drives – as well as in heat pumps.

CCT high-pressure/temperature sensor

The CCT high-pressure/temperature sensor was specifically developed for the high pressures and temperatures in CO2 heat pumps (R744).

LPS, MPS, HPS hydrogen pressure sensors

Our LPS, MPS and HPS pressure sensors were specially developed for scenarios involving the fluid hydrogen (H2) and are used, for example, in fuel cells, filling stations and high-pressure tanks.

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