Pressure Gauges > Differential Pressure Gauges >Dwyer Photohelic A3000/3000MR/3000MRS


Dwyer Photohelic® 3000 Series Indicating Differential Pressure Gauge and Switch

Dwyer Photohelic switch/gauges can control pressures in air conditioning systems, clean rooms, fluidic and pneumatic control systems, materials handling equipment, and control pressure in air structures.

Gauge reading is unaffected by switch operation, and it's easy to adjust setpoints with the knob controls. Your applied pressure and switch setpoints are fully visible. Relays can be set for high-latching, low-latching, or combination high-low latching circuits.

Key Specifications

  • Rated pressures: 20" Hg to 25 PSIG total on either side of diaphragm
  • Accuracy: ±2% full scale (±3% on -00 models)
  • 1/8" NPTF gauge connection
  • A3000 models feature two DPDT relays for high limit control
  • 3000MR models feature two SPDT relays
  • 3000MRS models feature two SPST normally open solid state relay contacts

Specifications, Manuals, and Supporting Literature



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