差压压力表主要技术指标和参数.pdf

Differential Pressure Gauges Accuracy ± 2.5 % DiP2Ch Bayonet Ring Case Stainless Steel Case Ø 100 (4) Models 160 (6) DiP2ChG Standard (DiP2Ch) or with Case Filling (DiP2ChG) This data sheet contains all important features of models DiP2Ch and DiP2ChG, with ordering information. Application Differential pressure gauges models DiP2Ch respectively DiP2ChG are used for direct reading of low differential pressure from 0/25 mbar (0/10 WC) and above at static pressures of 10 resp. 25 bar (150 resp. 400 psi). Differential pressure gauges of accuracy class 1.6 (EN) for higher static pressures (40 bar or 100 bar / 600 or 1500 psi) are to find in data sheet 5200, models DiP1Ch and DiP1ChG. Differential pressure gauges models DiP2Ch and DiP2ChG may be used for measuring gaseous and fluid media, which are compatible with 316 stainless steel (1.4571, 1.4404), Duratherm (NiCroCo-alloy), and Viton. In case of highly viscous media that tent to pollute or crystallize, we recommend models DiP1Ch or DiP1ChG (compare data sheet 5200). Several electrical accessories such as limit switch contact assem- blies or potentiometers may be installed. The gauges can optionally be supplied with solid front case type S3 according to EN 837-1 safety standard, with solid front (stainless steel) between measuring system and dial and full blow- out safety back. If the medium pressure gets into the case, e.g. because of a defective diaphragm, the entire case back separa- tes allowing full relief. Construction and Function The measuring system consists of two pressure chambers sepa- rated by a diaphragm. A pressure difference occurring in these pressure chambers leads to