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Dwyer 641RM-12-LED 641RM Air Velocity Transmitter

LED Display: Yes
  • Brand Dwyer
  • Part # 641RM-12-LED
  • Condition
    Brand New
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LED Display:
LED Display: Yes

Dwyer, 641RM-12-LED, Series 641RM Air Velocity Transmitter With Cable, With LED Display

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. The units 6´ cable which connects the sensing probe with the electronic enclosure allows the enclosure to be mounted where it can be more easily accessed.

Applications

  • Exhaust stack flow monitoring
  • Air control in drying processes
  • HVAC air velocity measurements
  • Fan supply and exhaust tracking
  • Clean room ventilation monitoring
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Technical Details

Optional Accessories
Reviews
Service Clean air and compatible, non-combustible gases
Accuracy 3% FS Process gas: 32 to 122°F
4% FS Process gas: -40 to 32°F & 122 to 212°F
Response Time Flow: 1.5 seconds to 95% of final value (output filter set to minimum)
Temperature Limits Process: -40 to 212°F
Ambient: 32 to 140°F
Pressure Limit 100 psi (6.89 bar) maximum
Humidity Limit Non-Condensing
Power Requirements 12-35 VDC, 10-16 VAC. 1.5 A rating required on supply due to initial power surge drawn by transmitter
Output Signal 4-20 mA, isolated 24V source, 3 or 4-wire connection
Output Filter Selectable 0.5-15 (seconds)
Loop Resistance 600 ohms max
Current Consumption 300 mA max
Electrical Connections Screw terminal
Mounting Orientation Unit not position sensitive. Probe must be aligned with airflow
Weight 13.2 oz
Cable Length 6 ft
Probe Length 12" standard
Probe Diameter 5/16"
Display 4-1/2 digit 1/2" red LED
Resolution 1 FPM, 0.01 MPS (10 FPM @ 10,000 and 15,000 FPM ranges)
Weight 13.9 oz
Notes

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Product Details
Service Clean air and compatible, non-combustible gases
Accuracy 3% FS Process gas: 32 to 122°F
4% FS Process gas: -40 to 32°F & 122 to 212°F
Response Time Flow: 1.5 seconds to 95% of final value (output filter set to minimum)
Temperature Limits Process: -40 to 212°F
Ambient: 32 to 140°F
Pressure Limit 100 psi (6.89 bar) maximum
Humidity Limit Non-Condensing
Power Requirements 12-35 VDC, 10-16 VAC. 1.5 A rating required on supply due to initial power surge drawn by transmitter
Output Signal 4-20 mA, isolated 24V source, 3 or 4-wire connection
Output Filter Selectable 0.5-15 (seconds)
Loop Resistance 600 ohms max
Current Consumption 300 mA max
Electrical Connections Screw terminal
Mounting Orientation Unit not position sensitive. Probe must be aligned with airflow
Weight 13.2 oz
Cable Length 6 ft
Probe Length 12" standard
Probe Diameter 5/16"
Display 4-1/2 digit 1/2" red LED
Resolution 1 FPM, 0.01 MPS (10 FPM @ 10,000 and 15,000 FPM ranges)
Weight 13.9 oz
Optional Accessories

Optional Accessories

Note

Note: Please read description carefully. Do not base your order on the picture presented.

Reviews

Reviews

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(800) 884-5767
+1 (332) 900-3727 (Intl.)