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Series-645

Wet/Wet Differential Pressure Transmitters, ± 0.25% Accuracy, 4-20 mA

  • Versatile, high-accuracy device for liquid or gas supports designs requiring more precise measurements in support of application
  • Optional 3-way valve manifold supports simplifying installation or removal of transmitter without interrupting process
Series-645
From $ 839.50
Wet/Wet Differential Pressure Transmitters, ± 0.25% Accuracy, 4-20 mA Series-645 Series-645
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Product Overview
  • Accuracy ± 0.25 %
  • Accuracy Note ± 0.25% FS (RSS)
  • Compliance CE
  • Display Type N/A
  • Electrical Connection 1/2 NPS female Conduit with Screw Terminal block
  • Enclosure Ratings IP56, NEMA Type 4X
  • Media Compatibility Air, Argon, Carbon dioxide, Helium, Hydrogen, Nitrogen, Oxygen, Steam
  • Operating Temperature, Max 80 °C
  • Operating Temperature, Min -22 °C
  • Pressure Type Differential
  • Process Connection Size 1/4 in
  • Response Time 30 to 50 ms
  • Span Adjustment Adjustable
  • Storage Temperature, Max 126 °C
  • Storage Temperature, Min -54 °C
  • Thermal Effects ± 0.02% FS/°F
  • Thermal Effects Note (includes zero and span) ± 0.02% FS/°F, 30 to 150°F (-1 to 65°C).
  • Zero Setting Adjustable Range Adjustable, ± 1 mA, non-interactive

Series 645 Wet/Wet Differential Pressure Transmitters are designed for use with compatible gases and liquids which can be applied to both the pressure and reference ports. Quick response capacitance sensor delivers a 4 to 20 mA output signal proportional to differential pressure with ±.25% accuracy. The Series 645 transmitters are ideal for process control, filter condition monitoring, refrigeration equipment, pump speed control, HVAC equipment, and liquid level measurement. For ease of installation and maintenance, order optional 3-valve manifold assembly. Bleed ports allow for total elimination of air in the line and pressure cavities.

Calibration Option available under Accessories.

California Residents:  Click Here for Proposition 65 WARNING.

Product Applications

  • Process control
  • Filter monitoring
  • Refrigeration equipment
  • Pump speed control
  • HVAC equipment
  • Liquid level measurement
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