Series 641RM Air Velocity Transmitter with Remote Probe
Does not ship to VA, United States
Description
The SERIES 641RM 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.
Features- Ranges from 250 FPM (1.25 MPS) to 15,000 FPM (75 MPS)
- Optional Bright LED Display
- Easy Push Button Set-up
- Compact Housing
- 4 to 20 mA Output
- Digital Filter for Signal Damping
Configure
Specifications
Specifications
Accuracy
- 3 % of Full Scale Process Gas: 0° to 50° C (32° to 122° F)
- 4 % of Full Scale Process Gas: -40° to 0° C & 50° to 100° C (-40° to 32° F & 122° to 212° F)
Ambient Temperature Range
- 0° to 60° C (32° to 140° F)
Approvals & Certifications
- CE
Cable Length
- 6 feet (1.82 metres)
Consumption
- 300 mA - Max.
Display
- 4-1/2-Digit, 1/2” Red LED
Electrical Connectors
- Screw Terminal
Flow Rate
- 250 to 15,000 fpm (1.25 to 75 mps)
Loop Resistance
- 600 ohms, Max.
Media
- Clean Air & Compatible
- Non-Combustible Gases
Mounting
- Duct Mount
NACE & NIST
- NIST Traceable Calibration Certificate
NPT Connection
- 1/2” NPT Female
Output
- 4-20 mA, Isolated 24 V Source, 3 or 4-Wire Connection
Power Requirement
- 10-16 Vac
- 12-35 Vdc
Process Temperature
- -40° to 100° C (-40° to 212° F)
Response Time
- 0.5 to 15 seconds
- 1.5 seconds to 95 % of Final Value
Seat / Seal Material
- PTFE
Sensor / Probe Diameter
- 12” (304.8 mm)
- 5/16” (0.79 cm)
Supply Pressure
- psi: 100 (kPa: 689.5, bar: 7)
Applications
Applications
- Exhaust stack flow monitoring
- Air control in drying processes
- HVAC air velocity measurements
- Fan supply and exhaust tracking
- Clean room ventilation monitoring