Differential pressure switch, range 1.40-5.5" w.c., approx. deadband @ min. set point 0.30, approx. deadband @ max. set point 0.30, with manual reset option.
Series 1900 Compact Low Differential Pressure Switches combine advanced design and precision construction to make these switches able to perform many of the tasks of larger, costlier units. Designed for air conditioning service, they also serve many fluidics, refrigeration, oven and dryer applications. Series 1900 switches have set points from 0.07 to 20 in w.c. (1.8 to 508 mm). Set point adjustment is easy with range screw located inside conduit enclosure. Internal location helps prevent tampering. UL, CE and CSA listed, and FM approved. For use with air or compatible gages.
- Compact size and repeatability, provides a high-value switch for many industrial and OEM applications
- Wide range of models from 0.07 in w.c. to 20 in w.c. can meet exacting OEM specifications for a low pressure switch
- Range screw protected inside enclosure provides simplifies making adjustments but prevents tampering
- Applications: Refrigeration, Refrigeration Equipment
- Compliance: CE, CSA, FM, UL
- Compliance Note: CE, CSA, FM, UL. Optional-EXPL explosion-proof enclosure does not possess any compliance
- Deadband: 0.3 inH²O
- Electrical Connection: 7/8 in knockout with Screw Terminal block
- Materials, Wetted: Consult Factory
- Measurement Pressure Type: Differential
- Measurement Pressure, Max: 5.5 inH²O
- Measurement Pressure, Min: 1.4 inH²O
- Media Compatibility: Air, Argon, Carbon dioxide, Helium, Nitrogen, Non-Corrosive Dry Gases
- Mounting Orientation: Vertical Diaphragm
- Operating Temperature, Max: 180 °F
- Operating Temperature, Min: -30 °F
- Port/Valve Configuration: Standard
- Process Connection Size: 1/8 in
- Process Connection Type: NPT Female
- Proof Pressure: Up to 45 inH²O
- Repeatability: ± 3%
- Set Point Adjustment: Internal Screw
- Switch Note: 15 A @ 120-480 VAC, 60 Hz. Resistive 1/8 HP @125 VAC, 1/4 HP @ 250 VAC, 60 Hz. De-rate to 10 A for operation at high cycle rates
- Switch Rating: 15 A @ 120-480 Vac, 1/8 HP @ 125 Vac, 1/4 HP @ 250 Vac
- Switch Type: SPDT NO/NC, Selectable
- Weight: 581 g
Applications
- Air conditioning refrigeration coil icing detection; defrost cycle initiation
- Clogged filter detection
- Variable air volume controller
