Dwyer Series 638R OEM Pressure Transmitter

Part Number: Series 638R Categories: , ,

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The Series 638R OEM Pressure Transmitter is a high-accuracy, low-cost pressure transmitter designed for industrial equipment markets. This transmitter is designed to work with all liquids and gases that are compatible with the wetted materials. The series features a number of configurable options including wetted materials, process connections, and pressure ranges. Whether the application involves aggressive fluids or extreme temperatures, this transmitter is a great option for most applications.


Product Applications

  • HVAC equipment
  • Refrigeration equipment
  • Refrigerant recovery
  • Leak detection systems
  • Building pressurization
  • Isolated diaphragm packages
  • Closed loop hydraulics
  • Paint and agriculture spraying

Service : Compatible gases and liquids.

Wetted Materials : Brass, aluminum, or 316 SS.

Accuracy : ±1.2% F.S. (includes linearity, hysteresis, repeatability and calibration); Static error band @ 25°C, 5.0 VDC supply voltage.

Cycle Life : 10 million F.S. cycles.

Storage Temperature : -40 to 302°F (-40 to 150°C).

Operating Temperature : -40 to 275°F (-40 to 135°C).

Pressure Limit : See sku chart on catalog page.

Thermal Effect : ±0.013% F.S./°C.

Power Supply : 5 VDC.

Output Signal : 0.5 to 4.5 VDC ratiometric.

Response Time : 10 ms typical.

Output Load : 20kΩ min. (Pull-up or Pull-down)Current Consumption:<10 mA @ 5.5 VDC (8.5 mA typical).

Electrical Connection : Packard connection.

Process Connection : 7/16″ 20 UNF (female) or 1/4″ NPT (female).

Enclosure Rating : IP67 (with IP67 plug).

Mounting Orientation : Mount in any position.

Weight : 1.1 oz (30 g).

Agency Approvals : CE.

  • High-accuracy pressure transmitter with a fast response time and excellent pressure surge protection
  • Suitable for use in applications with extreme temperatures and aggressive fluids
  • Highly configurable cost-effective transmitter with a compact design

Product Literature


Catalog Pages

Product Data Sheet

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