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Dwyer 641RM-12 Air Velocity Transmitter

The Series 641RM Air Velocity Transmitter with Remote Probe features the same highly accurate heated mass flow sensor as the Series 641, with a remote probe construction.

  • Accuracy: 3% FS Process gas: 32 to 122 F
  • Outputs: 4-20 mA
  • Power Requirments: 12 to 35 VDC, 10 to 16 VAC
  • Current Consumption: 300 mA max
Price: $804.35
ServiceClean air and compatible, non-combustible gases
Accuracy3% FS Process gas: 32 to 122 F
Response TimeFlow: 15 s to 95% of final value (output filter set to min)
Temperature LimitsProcess: -40 to 212 F (-40 to 100 C) Ambient: 32 to 140 F (0 to 60 C)
Pressure Limit100 psi (689 bar) maximum
Humidity LimitNon-Condensing
Power Requirments12 to 35 VDC, 10 to 16 VAC
Output FilterSelectable 05-15 s
Loop Resistance600 Ω max
Current Consumption300 mA max
Outputs4-20 mA
Electrical ConnectionsScrew terminal
Mounting OrientationUnit not position sensitive Probe must be aligned with airflow
Cable Length6' (182 m)
ApprovalsRoHS
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