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Description
Dwyer 43203 Pressure switch/gage, range 0-3 psid., Aluminum Case. Series 43000 Capsu-Photohelic® Pressure Switch Gage Lo-Limit and Hi-Limit Control
Capsu-Photohelic® Switch/Gages function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic® gage design. The Capsu-Photohelic® switch/gage employs an encapsulated sensing element for use with both liquids and gases at pressures to 500 psig (34 bar). 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 gage 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, etc.
- Service: Compatible gases and liquids. Brass case option required for water based liquids.
- Accuracy: ±3% of full scale at 70°F (21.1°C). ±2% on 43000S models; ±4% on 43215, 43220 and 43500.
- Pressure Limits: -20 Hg to 500 psig (-0.677 to 34.5 bar).
- Temperature Limits: 20 to 120° (-6.67 to 48.9°C) Low temperature option available.
- Process Connections: 1/4" female NPT.
- Size: 4" (101.6 mm) dial face, 5" (127 mm) O.D. x 9-3/16" (233.36 mm).
- Weight: 5 lb 8 oz (2.49 kg). Brass 11 lb 2 oz (5.05 kg).
- Switch Type: Each setpoint has 2 Form C relays (DPDT).
- Repeatability: ±1% of full scale.
- Electrical Rating: 10A @ 120 VAC, 6A @ 240 VAC, 60 Hz res. 10A @ 28 VDC.
- Electrical Connections: Screw Terminals.
- Power Requirements: 120 VAC, 50/60 Hz; 240 VAC & 24 VAC power optional.
- Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
- Set Point Adjustment: Adjustable knobs on face.
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