Fischer pressure transmitter Process technology DA01 | PN250 Differential pressure gauge, stainless steel

Gas Alarm India offers Fischer Germany's DA01 used for indication and switching differential pressure of gaseous and liquid media.

Construction and Operation: The pressures to be compared act on flexible stainless steel diaphragms on either side of the sensing capsule. The two diaphragms are mechanically linked by a rigid connecting rod. To compensate for high static pressures, the cavity between the two diaphragms is filled with hydraulic fluid. When pressures are equal on both diaphragms, they are at zero position. When there is a difference in pressures acting on the two diaphragms, they are deflected away from the high pressure side, towards the lower pressure side, causing a displacement of the connecting rod.

Features:
 

• Measuring range: 0-60mbar to 0-1600kPa (other ranges on request)
• Max. pressure load: Overpressure safe up to max. operating pressure
• Max. static operating pressure: PN 250; PN 400
• Indication: Circular dial type 100 or 160 diameter; Scale design acc. to DIN, 270°
• Accuracy: ± 1.6% FS
• Perm. ambient temperature (housing): -20 to +80°C
• Perm. medium temperature: -20 to +80°C
• Zero adjustment: Accessible through marginal openings of the housing, max. ±30% Full Scale
• Pressure connection: Flange connection acc. to DIN EN 61518, female thread G1/2
• Pressure chamber: Plain walls without undercuts, even measuring diaphragm; Rinsing and venting connection G1/8
• Protection class: IP54 acc. to DIN EN 60529, IP65 acc. to DIN EN 60529 for filled models
• Pressure chamber: 1.4404
• Measuring diaphragm: For ranges ≤ 400 mbar: 1.4571 stainless steel; For ranges ≥ 0.6 bar: NiCrCo alloy (Duratherm®)
• Pressure transfer liquid: Silicone oil
• Inner plate: AlMgSiPb HART-COAT®
• Indicator and housing: 1.4301 stainless steel
• Gasktes: Viton® O-Rings
• Glass: Multi layer laminated safety glass
• Dial and Indicator: Aluminium
• High corrosion-resistance
• Robust, good wear resistant movement
• Rinseable pressure chambers, insensitive against dirt
• overpressure safe up to 250 bar

Applications:
 

• Chemicals and gas plants
• On and offshore area
• Cements
• Pharmaceuticals, clean rooms
• Refrigeration
• Coal mines, underground mines
• Pipelines, water treatment