differential pressure transmitter / membrane / process / stainless steel
648B, 648C series DWYER



  • Pressure type:


  • Technology:


  • Other characteristics:

    stainless steel, process, for liquids and gases

  • Process temperature:

    Max.: 77 °C (171 °F)

    Min.: -18 °C (-0 °F)

  • Pressure range:

    100,000 Pa, 200,000 Pa (14.5 psi)


648B is a series of products that contains items that are fully compatible with dry, clean air, along with other non-corrosive gases. Each of the units in this product series contain a push-activated zero function, along with an associated LED light indicator. Next, the convenient push-button helps perform zero calibration without the need for any additional equipment.

In addition to this, the LED is dual colored and indicates whether the transmitter is operated normally. In addition, the enclosure is composed of a flame retardant plastic top cover, as well as a bottom plate made of stainless steel, which ensures ruggedness. The pressure range supported varies from 0.1 in w.c. to 25 in w.c. Finally, the output is between 4 to 20mA, and is fully protected against incorrect wiring and short circuiting.

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