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641-18-LED
Air velocity transmitter, 18" (457.2 mm) probe length, with LED display.

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Product Specs
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Accuracy | ± 3 % |
Accuracy Detail | 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 |
Air Velocity, Max | 15000 FPM |
Air Velocity, Min | 250 FPM |
Compliance | CE |
Display Note | 4-1/2 digit 1/2˝ Red LED |
Display Resolution | 1 FPM, 0.01 MPS (10 FPM @ 10,000 and 15,000 FPM ranges) |
Display Type | LED |
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 Digits | 4.5 |
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 Length | 18 in |
Process Connection Size | 1/2 in |
Process Connection Type | NPT Male |
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 |
Weight | 13.3 oz |
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PDFs & Manuals
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