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Photohelic Gauge
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Dwyer Photohelic Pressure Switch Gauge

Original price was: $1,259.00.Current price is: $1,059.00.

The Dwyer Photohelic Pressure Switch Gauge, Series A300, measures and controls positive, negative or differential pressures of air and compatible gases.

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SKU: 242-179 Categories: , , Tags: , Brand:

Description

The Series A3000 Photohelic® Switch/Gauge functions as a versatile, highly repeatable pressure switch combined with a precise pressure gauge that employs the time-proven Magnehelic® gauge design.

Precision Instruments for Accurate Air Flow and Pressure Measurements

A3301:  Pressure switch/gauge, range .5-0-.5″ w.c.

  • Standard models are rated to 25 psig (1.7 bar) with options to 35 (2.4) or 80 (5.5 bar) psig.
  • Two phototransistor actuated, DPDT relays are included for low/high limit control.
  • Easy to adjust set point indicators are controlled by knobs located on the gauge face.
  • The individual set point deadband is one pointer width – less than 1% of full scale.
  • Set points can be interlocked to provide variable deadband – ideal for control of fans, dampers, etc.
  • The gauge reading is continuous and unaffected by switch operation, even during loss of electrical power.

Ships warehouse direct in 3-5 days.

The Series A3000 Photohelic® Switch/Gauge functions as a versatile, highly repeatable pressure switch combined with a precise pressure gauge that employs the time-proven Magnehelic® gauge design.

Precision Instruments for Accurate Air Flow and Pressure Measurements

A3301:  Pressure switch/gauge, range .5-0-.5″ w.c.

  • Standard models are rated to 25 psig (1.7 bar) with options to 35 (2.4) or 80 (5.5 bar) psig.
  • Two phototransistor actuated, DPDT relays are included for low/high limit control.
  • Easy to adjust set point indicators are controlled by knobs located on the gauge face.
  • The individual set point deadband is one pointer width – less than 1% of full scale.
  • Set points can be interlocked to provide variable deadband – ideal for control of fans, dampers, etc.
  • The gauge reading is continuous and unaffected by switch operation, even during loss of electrical power.

 

 

Quantity required for purchase Percent Discount
2 3%
3 5%
5 10%

 

The Series A3000 Photohelic® Switch/Gauge functions as a versatile, highly repeatable pressure switch combined with a precise pressure gauge that employs the time-proven Magnehelic® gauge design.

Precision Instruments for Accurate Air Flow and Pressure Measurements

A3301:  Pressure switch/gauge, range .5-0-.5″ w.c.

  • Standard models are rated to 25 psig (1.7 bar) with options to 35 (2.4) or 80 (5.5 bar) psig.
  • Two phototransistor actuated, DPDT relays are included for low/high limit control.
  • Easy to adjust set point indicators are controlled by knobs located on the gauge face.
  • The individual set point deadband is one pointer width – less than 1% of full scale.
  • Set points can be interlocked to provide variable deadband – ideal for control of fans, dampers, etc.
  • The gauge reading is continuous and unaffected by switch operation, even during loss of electrical power.

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