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Series 43000 Capsu-Photohelic® Pressure Switch/Gauge

Brand: Dwyer Instruments, LLC

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Series 43000 Capsu-Photohelic® Switch/Gauges function as versatile, highly repeatable pressure switches combined with a precise pressure gauge employing the time-proven Magnehelic® gauge design.

The Capsu-Photohelic® switch/gauge employs an encapsulated sensing element for use with both liquids and gases at pressures to 500 psig (34 bar). Optional cast brass case is available for water or water based liquids.

Two phototransistors 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.

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 pumps.
Features
  • Gauge capsule permits high-pressure usage with small differentials
  • Zero and range adjustments outside of gauge means no disassembly in normal service
  • Time-proven, simple, frictionless movement that permits full scale readings as low as 0.5 in w.c
  • Photo-electronic relays provide fast-acting switching with variable deadband control for chatter-free operation
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Series 43000 Capsu-Photohelic® Switch/Gauges function as versatile, highly repeatable pressure switches combined with a precise pressure gauge employing the time-proven Magnehelic® gauge design.

The Capsu-Photohelic® switch/gauge employs an encapsulated sensing element for use with both liquids and gases at pressures to 500 psig (34 bar). Optional cast brass case is available for water or water based liquids.

Two phototransistors 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.

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 pumps.
Features
  • Gauge capsule permits high-pressure usage with small differentials
  • Zero and range adjustments outside of gauge means no disassembly in normal service
  • Time-proven, simple, frictionless movement that permits full scale readings as low as 0.5 in w.c
  • Photo-electronic relays provide fast-acting switching with variable deadband control for chatter-free operation

Specifications

Accessories

  • Flat Aluminum Bracket for Flush Mounting

Accuracy

  • ± 3 % of Full Scale at 21.1° C (70° F)
  • ± 4 % on 43215, 43220 & 43500

Adjustment Type

  • Adjustable Knobs on Face

Electrical Connectors

  • Screw Terminal

Electrical Rating

  • 10 A at 120 Vac
  • 10 A at 28 Vdc
  • 6 A at 240 Vac 60 Hz Res

Enclosure, Body Material

  • Aluminum
  • Brass

Input Power

  • 24 Vac or 220 Vac Powered Relay Pack

Media

  • Compatible Gases
  • Liquids & Gases

NACE & NIST

  • NIST Traceable Calibration Certificate

NPT Connection

  • 1/4" NPT Female

Power Requirement

  • 120 Vac
  • 50/60 Hz

Repeatability

  • ± 1 % of Full Scale

Sensor Orientation

  • Diaphragm in Vertical Position

Set Point - Decreasing

  • Inches WC: -15 to 500

Set Point - Increasing

  • Inches WC: -15 to 500

Size

  • Dial: 4" (101.6 mm)
  • Gauge: 5" (127 mm) O.D. × 9-3/16" (233.36 mm)

Switch Type

  • Each Set Point Has 2 Form C Relays (DPDT)

System Pressure

  • bar: 34.5
  • kPa: 3,450
  • psig: 500

Temperature Range

  • -6.7° to 48.9° C (20° to 120° F)

Typical Applications

  • Pump control
  • Pumping systems
  • Waste water
  • Compatible liquid or gas application