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.
Technology
MEMS Piezoresistive effect sensor
Accuracy
±0.25 % of full scale
Permissible temperature range
Ambient: -20~80 °C (PT851, PT852, PT853) -20~70 °C (PT850) Process: -50~130 °C (PT851, PT852, PT853) -20~100 °C (PT850)
Scale range
Refer to range code
Enclosure rating
Min IP65
Explosion protection
Ex db IIC T6 Gb / IP65 (Model : PT850) Ex ia IIC T6...T4 (Model : PT851) Ex nA IIC T6...T4 (Model : PT852)
Standard features
Mechanical
Pressure connection
Type 316L electropolished low mount Type 316L double melt electropolished low mount surface finish Ra≤0.13 μm ■ ¼", ⅜", ½" (NPT, PT, PF) male thread ■ Male or female face seal fitting ■ Flow through type