Last Updated: 05/04/2020
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Dwyer Series 1900 Compact Low Differential Pressure Switches

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Part Number: Series 1900 Categories: ,
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    Questions? Call +604-502 1894 Mon-Fri 8:30am to 5:30pm or Email [email protected]

    FREE Domestic AND SEA Shipping!

    Most orders RM500/USD120 or more ship SEA for FREE!

    • Delivery within the Southeast Asia only.
    • Hazardous items excluded.
    • Extremely heavy or bulky items excluded.
    • Distributors, Resellers and OEMs excluded.
    • Contact us for shipping charge for orders < RM500/USD120
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    Questions? Call +604-502 1894 Mon-Fri 8:30am to 5:30pm

    Setup, Configuration and Technical Support of our Products are FREE.

    We help to check your faulty Instruments too, fill in the form here

    Free phone and email tech support continues as long as you own the product. Click here for contact information.

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  • Our most popular Series 1900 Compact Low Differential Pressure Switch combines 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. For air and non-combustible compatible gases, Series 1900 switches have set points from 0.07 to 20″ w.c. (1.8 to 508 mm). Setpoint adjustment is easy with range screw located inside the conduit enclosure. Internal location helps prevent tampering. UL, CE, and CSA listed, and FM approved.

    CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES.

    Product Applications

    • Air conditioning refrigeration coil icing detection; defrost cycle initiation.
    • Clogged filter detection.
    • Variable air volume controller

    Service : Air and non-combustible, compatible gases.

    Wetted Materials : Consult factory.

    Temperature Limits : -30 to 180°F (-34 to 82.2°C).

    Pressure Limits : 45″ w.c. (11.2 kPa) continuous, 10 psig (68.95 kPa) surge.

    Switch Type : Single-pole double-throw (SPDT).

    Repeatability : ±3%.

    Electrical Rating : 15 A @ 120-480 VAC, 60 Hz. Resistive 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC, 60 Hz. Derate to 10 A for operation at high cycle rates.

    Electrical Connections : 3 screw type, common, normally open and normally closed.

    Process Connections : 1/8″ female NPT.

    Mounting Orientation : Diaphragm in vertical position. Consult factory for other position orientations.

    Set Point Adjustment : Screw type inside conduit enclosure.

    Weight : 1 lb 4.5 oz (581 g).Agency Approvals:CE, CSA, FM, UL. Optional EXPL Explosion-proof enclosure does not possess any agency approvals.

     

    • 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

    Product Literature

    Manual

    Catalog Page

     

    celectric logo

    Questions? Call +604-502 1894 Mon-Fri 8:30am to 5:30pm

    Setup, Configuration and Technical Support of our Products are FREE.

    We help to check your faulty Instruments too, fill in the form here

    Free phone and email tech support continues as long as you own the product. Click here for contact information.

    close-link
    celectric logo

    Questions? Call +604-502 1894 Mon-Fri 8:30am to 5:30pm or Email [email protected]

    FREE Domestic AND SEA Shipping!

    Most orders RM500/USD120 or more ship SEA for FREE!

    • Delivery within the Southeast Asia only.
    • Hazardous items excluded.
    • Extremely heavy or bulky items excluded.
    • Distributors, Resellers and OEMs excluded.
    • Contact us for shipping charge for orders < RM500/USD120
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