Photohelic® Switch/Gages in Flame-Proof Enclosures
Approved Photohelic® Switch/Gages with 120, 240 or 24 VAC Power are available in aluminum with glass window, allowing for viewing of set point needles and process pressure.
Features
3-in-1 ATEX approved instrument allows the reduction of several instruments with one product, saving inventory, installation time and money
Flame-proof ATEX enclosure with optional glass window and aluminum housing protects the device in hazardous areas while giving local visibility to process pressure and set point status
Product Applications
Hazardous area pressure measurement and switching
Air conditioning systems
Clean rooms
Fume exhaust systems
Specifications
Service: Air and non-combustible, compatible gases.
Wetted Materials: Consult factory.
Accuracy: ±2% of FS at 70°F (21.1°C); ±3% on -0 and ±4% on -00 models.
Pressure Limits: -20 in Hg to 25 psig (-0.677 to 1.72 bar). MP option; 35 psig (2.41 bar), HP option; 80 psig (5.52 bar).
Temperature Limits: 20 to 120°F (-6.67 to 48.9°C) LT low temperature option to -20°F available; (Note: Product temperature limits differ from case).
Dial Size: 4" (101.6 mm).
Mounting Orientation: Diaphragm in vertical position.
Set Point Adjustment: Adjustable knobs on Photohelic® gage face behind enclosure cover. Follow instructions and safety warnings to open cover.
SWITCH SPECIFICATIONS:
Switch Type: Each setpoint has 2 Form C relays (DPDT).
Repeatability: ±1% of FS.
Electrical Rating: 10 A @ 120 VAC, 6 A @ 240 VAC, 60 Hz res. 10 A @ 28 VDC.
Electrical Wiring: Screw terminals.
Power Requirements: 120 VAC, 50/60 Hz; 240 VAC & 24 VAC power optional.
Enclosure Rating: IP66. IP65 with option OPV, overpressure relief valve.
Housing material: Aluminum.
Finishing: Texture epoxy coat RAL7038.
Pressure Connections: 1/8" NPT female brass (SS optional). In presence of acetylene it is necessary to use SS.
Electrical Connections: Three 1/2" FNPT. Cable gland not included.
Weight: 28.4 lb (12.9 kg).
ATEX Certificate: BVI 14ATEX0072.
Agency Approvals: ATEX Compliant CE 1370 Ex II 2G Ex d IIC T6 Gb / II 2D Ex tb IIIC T85°C Db, -60°C=Tamb=+60°C IECEx Compliant: Ex d IIC T6 Gb / Ex tb IIIC T85°C Db
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