Industrial Differential Pressure Switch Or Alarm

The PSW-180 Series differential pressure switch offers a blend of small size, excellent performance and environmental protection. The PSW-180 is available with switch contacts or as an audible alarm.

SPECIFICATIONS
Switch: SPDT rated at 5 amp at 250/125 Vac, 5 amps at 30 Vdc, gold-clad contacts
Audible Alarm: Internal 9 Vdc battery powered, continuous tone 85 dB (battery included)
Repeatability: 1% of span
Ambient Temperature:
   Storage: -30 to 80°C (-22 to 176°F)
   Operating: 0 to 70°C (32 to 158°F)
Max Media Temp: 95°C (203°F) @ 100 psi
Vibration: MIL STD 810C, 2.5 g’s 5-500 cps
Shock: 15 g’s, 10 msec duration.
Working Pressure: 0-150 psid at up to 70°C (158°F) air temperature
Differential Proof Pres: 150 psid at up to 70°C (158°F) air temperature
Enclosure: NEMA-4, reinforced polyester body, zinc-plated steel cover with neoprene gasket, terminal block wiring
Adjustment: multi-turn screw, accessible from outside enclosure
Pressure Port: 1/4 NPTF brass or 1/4 NPSF polysulfone
Dimensions:
   Polysulfone: 70 W x 60 D x 89 H mm (2.75 x 2.38 x 3.5′)
   Brass: 80 W x 60 D x 89 H mm (3.13 x 2.38 x 3.5′)
Weight: 165 g (5.8 oz) (approximate)