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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.
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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).
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Single Contact, right set point, for actuation on increasing or decreasing
pressure.
Power Supply, 24 VAC or 220 VAC powered relay pack.
Remote-Mounted Relay, relay pack may be mounted remotely from gage.
Specify cable length required.
Tamper-proof Knobs, low temperature option, special scales, voltages
and other features and modifications are available.
Special Housings, available include Weatherproof (NEMA 4) and Explosionproof
(NEMA 7 CD, 9 EFG; NEC Class I, DIV. 1 & 2, Groups C, D, Class II, Div.
1 & 2, Groups E, F, G, Class III. Contact Customer Service for detailed
dimension drawings.
ACCESSORIES -- See "Ordering" Page
A-298 Flat Aluminum Bracket for Flush Mounting
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