Lo-Limit and Hi-Limit Control, Aluminum or Brass Case Available

Capsu-Photohelic® Switch/Gages function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic® design. The Capsu-Photohelic® 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 phototransistor actuated, DPDT relays are included for low/high limit control. Easy to adjust setpoint indicators are controlled by knobs located on the gage face. Individual setpoint deadband is one pointer width — less than 1% of full scale. Setpoints can be interlocked to provide variable deadband — ideal for control of pumps, etc.

SPECIFICATIONS
GAGE SPECIFICATIONS
Service: Compatible gases and liquids. Brass case option required for water based liquids.
Wetted Materials: Consult factory.
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 SPECIFICATIONS
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.