Last Updated: 05/04/2020
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Dwyer Series 648B & 648C Differential Pressure Transmitter

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Part Number: Series 648B & 648C Categories: ,
  • Free Shipping
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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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  • The Series 648B and 648C Differential Pressure Transmitters are designed to be used with clean, dry air and other non-corrosive gases. Each unit features a push-activated zero function and an associated LED light indicator. With the convenient push-button, zero calibration can be performed without any additional equipment, which significantly reduces time and cost for users. The dual color LED indicates if the transmitter is at normal operation, overpressure, or in the process of zero calibration. The enclosure consists of a flame retardant plastic top cover and a stainless steel bottom plate for ruggedness. The pressure ranges vary from 0.1 in w.c. to 25 in w.c. unidirectional and 0.25 in w.c. to 5 in w.c. bidirectional. Series 648B comes standard with ±0.8% FS* accuracy, while 648C models are available in ±0.4% FS* accuracy for more demanding applications. Wiring time is reduced with the removeable terminal block. Each unit features a 2-wire 4 to 20 mA output that is fully protected against short circuiting and incorrect wiring.

    Service : Air and non-combustible, compatible gases.

    Wetted Materials : 302 SS, glass, nickel, silicon rubber, polyethylene, acrylic, ABS and brass.

    Accuracy : 648B: ±0.8% FS* at room temperature; 648C: ±0.4% FS* at room temperature. *RSS (Root Sum Square) includes non-linearity, hysteresis and non-repeatability.

    Stability : ±1% FS/yr.

    Temperature Limits : Operating: 0 to 170°F (-18 to 77°C); Storage: -65 to 185°F (-54 to 85°C).

    Pressure Limits : 15 psi (100 kPa) proof pressure; 30 psi (200 kPa) burst pressure.

    Thermal Effects : 648B: ±0.025% FS/°F (0.045%/°C); 648C: ±0.020% FS/°F (0.036%/°C).

    Power Requirements : 13 to 32 VDC.

    Output Signal : 4 to 20 mA.

    Zero and Span Adjustments : Push-button for zero, potentiometer for span.

    Response Time : Approximately 10 ms.

    Max. Loop Resistance : DC: 0 to 950 Ω.

    Electrical Connection : Detachable euro-style terminal block.

    Process Connections : 3/16″ OD barbed fitting for 1/8″ ID push-on tubing.

    Housing : SS and PC+ABS alloy.

    Weight : 3.8 oz (108 g).

    Product Literature

    Manual

    Catalog Pages

     

     

     

    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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