WISE(PT-850 Series)

Ultra high purity pressure transmitter.

Service intended
PT850 series are specially designed for the ultra-high purity gas distribution system used in a semiconductor, electronic, medical, biotechnology and pharmaceutical industry. The transmitter has a water resistant, Stainless steel housing for complete protection from harsh environments. The transmitter offers the convenience and easy installation with the full capabilities of a highly accurate 4~20 mA 2-wire system design. The stainless steel surfaces make it compatible with a wide variety of gases, liquids and can be protected from harsh environment. It is extremely versatile and suitable for measuring dynamic or static pressure. The pressure to be measured acts through corrosion resistant stainless steel 630 diaphragm with a MEMS Piezoresistive effect sensors which are connected into a Wheatstone bridge. PT850 series pressure transmitter is electrically temperature compensated.
MEMS Piezoresistive effect sensor
±0.25% of full scale
Operating temperature range
-20 ~ 80°C
Scale range
Refer to range code
Enclosure rating
IP 65
Explosion protection
  • Ex d IIC T6 (Model : PT850)
  • Ex ia IIC T6...T4 (Model : PT851)
  • Ex nA IIC T6...T4 (Model : PT852)
Pressure connection
Stainless steel 316L electropolished low mount or center back mount surface finish Ra≤0.15 μm
  • ¼", ⅜", ½" (NPT, PT, PF) male thread
  • Male or female face seal fitting
  • Tube welding
  • Flow through type
  • Modular surface mount
Material wetted by process
  • Stainless steel 630 (Sensor)
  • Stainless steel 316L (Connection)
Input power
12 ~ 24 VDC
Output signal
4 ~ 20 mA
DC 2-wire loop powered technique
Load resistance max
500 Ω at 24 V
Response time (10 ~ 90%)
≤20 milliseconds

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