Fischer DP Gauge for Process, Chemical Application – DA03

Fischer DP Gauge for Process, Chemical Application – DA03

Gas Alarm India offer Fischer Germany differential pressure gauge DA03. DA03 is a versatile differential pressure gauge which can be configured with various optional features, such as:

  • Adjustable limit contacts: delayed action or magnet actuated type
  • Proximity type (NAMUR) non-contact limit detector
  • Pointer position transducer, with electrical signal output


  • Chemical, pharmaceutical industries
  • Process industries
  • Marine and off-shore
  • heavy industries
  • power plants, hydro plants
  • petrochemical, oil & gas
  • refrigeration, building
  • fertilizer, transportation


  • Corrosion resistant
  • Rugged, wear resistant mechanism
  • Unaffected by fouling
  • Easily cleaned pressure chamber
  • Measuring ranges: 0-40 mbar to 0-25 bar
  • Nominal pressure rating: 40 bar or 100 bar (max. static pressure)
  • Accuracy: ± 1.6% of span
  • Max. differential overpressure:Safe up to max. static pressure; pressure differential in either direction
  • Indicator:Circular dial type, 100 mm or 160 mm diameter
  • Operating temperature: Ambient: -20°C to +80°C, Media: +100°C, maximum
  • Temperature coefficient: Approx. 0.3% / 10°C
  • Zero adjustment: Screw through hole on top of dial housing. ±25% FS.
  • Protection class: IP 54, per DIN EN 60529
  • Pressure chambers: Smooth internal surfaces without recesses; flush sensing diaphragms; easy to clean
  • Pressure connections: DIN EN 61518 connecting flanges with 2x G½ (F) threaded sockets. Various bite type ferrule connectors (see Ordering Code)
  • Purge ports: 2x G 1/8 (F) threaded sockets, in flanged pressure chamber casing; screw plugs fitted

Type “R”:

  • Pressure chamber (wetted part): Stainless steel 1.4404 (AISI 316L)
  • Diaphragm (wetted part): dP ≤ 400 mbar: stainless steel 1.4571
  • dP ≥ 0.6 bar: DURATHERM® (stainless steel)

Type “H”:

  • Pressure chamber (wetted part): Hastelloy® C4
  • Diaphragm (wetted part): dP ≤ 2.5 bar: Hastelloy® C 276
  • dP ≥ 4 bar: Standard diaphragm with separating foil made from Hastelloy® C 276
  • NB: Models with separating foil not useable for vacuum application.
  • Intermediate plate: Aluminium alloy (AlMgSiPb); hard coated
  • Dial mechanism, gauge housing: Stainless steel 1.4301
  • Dial window: Laminated safety glass
  • Dial scale and pointer: Aluminium
  • O-ring gasket: Viton® (FKM, fluorocarbon elastomer)

Electrical accessories: Limit signalling contacts: delayed action / magnet actuated switch type / non-contact proximity type limit detector. Pointer rotation transducer: capacitance type, with output signal proportional to the pointer position (uses deeper gauge housing: see Dimensions). For details of electrical accessories, see Data Sheet KE. Liquid filling For operating conditions involving vibration, pressure fluctuations, and/or moisture condensation inside, the gauge can be supplied with glycerine filling. Reference pointer Adjustable pointer for visual marking of limit / reference value. Peak registering pointer Separate pointer without spring, friction holding: dragged by the measuring pointer as the measured value increases. Stays put when the measuring pointer recedes, thereby registering peak value. Manual re-setting. Options (on special order) Special materials: PTFE coated or Hastelloy-C diaphragm and pressure chamber casing.