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Series-641RM
Air Velocity Transmitter w/ Remote Heated Probe for HVAC & Clean Rooms
- Output signal conditioning with digital filtering
- Install in tight spaces with compact design
- Easy setup with on-board buttons
Series-641RM
From
$
899.00
Product Overview
- Accuracy ± 3 %
- Accuracy Note 3% FS process gas: 32 to 122°F (0 to 50°C); 4% FS process gas: -40 to 32°F and 122 to 212°F (-40 to 0°C and 50 to 100°C)
- Air Velocity, Max 15000 FPM
- Air Velocity, Min 250 FPM
- Cable Length 6 ft
- Electrical Connection Screw Terminal
- Electrical Output 4 to 20 mA
- Filter 0.5 to 15 s (Selectable)
- Loop Resistance 600 Ω max
- Media Compatibility Argon, Carbon dioxide, Clean Dry Air, Helium, Nitrogen, Non-Corrosive Dry Gases
- Mounting Orientation None
- Number of Wires 4
- Operating Temperature, Max 140 °F
- Operating Temperature, Min 32 °F
- Output Detail 4 to 20 mA, isolated 24 V source, 3 or 4-wire connection
- Power Consumption 300 mA
- Pressure Limits Up to 100 psi
- Probe Diameter 0.3125 in
- Probe Length 12 in
- Process Temperature, Max 212 °F
- Process Temperature, Min -40 °F
- Relative Humidity Non-Condensing
- Response Time 1.5 s to 95%
- Response Time Note Flow: 1.5 s to 95% of final value (output filter set to minimum)
- Supply Power Note 12 to 35 Vdc, 10 to16 Vac. 1.5 A rating required on supply due to initial power surge drawn by transmitter
- Supply Power Type AC/DC
- Supply Voltage 10 to 16 Vac, 12 to 35 Vdc
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.
NIST CALIBRATION available in Product Configurator.
Product Applications
- Exhaust stack flow monitoring
- Air control in drying processes
- HVAC air velocity measurements
- Fan supply and exhaust tracking
- Clean room ventilation monitoring