641B-4

Air velocity transmitter.

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Display Type

N/A LED

$838.90 / each

Item# 641B-4

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In Stock

Lead Time (If not in stock): 3 weeks

Brand
Accuracy	± 5 %
Accuracy Detail	5% FS process gas: 32 to 122°F (0 to 50°C); 6% FS process gas: -40 to 32°F and 122 to 176°F (-40 to 0°C and 50 to 80°C)
Air Velocity, Max	2000 FPM
Air Velocity, Min	250 FPM
Display Type	N/A
Electrical Connection	Screw Terminal
Electrical Output	4 to 20 mA
Enclosure Ratings	IP66, NEMA Type 4X
Filter	0.5 to 15 s (Selectable)
GrossWeightValue	0.75
Loop Resistance	600 Ω max
Media Compatibility	Clean dry air / inert gas, HVAC / room air, Inert / non-reactive gases, 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
Probe Length	4 in
Process Temperature, Max	176 °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)
Series ID	Model-641B
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	12.6 oz
Country of Origin	United States
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