Dwyer

641 – Air velocity transmitter

494.00 618.00 

Service: clean air and compatible, non-combustible gases.
Accuracy: 3% f.s. process gas: 32 to 122°F (0 to 50°C). – 4% FS Process gas: -40 to 32°F & 122 to 212°F (-40 to 0°C & 50 to 100°C).
Response time: Flow: 1.5 seconds to 95% of final value (output filter set to minimum).
Temperature limits: Process: -40 to 212°F (-40 to 100°C). Ambient: 32 to 140°F (0 to 60°C).
Pressure limit: 100 psi (6.89 bar) maximum.
Humidity lmit: Non-Condensing

Power requirements: 12–35 VDC, 10–16 VAC.
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.
Process connections: 1/2″ male NPT.
Enclosure rating: Designed to meet NEMA 4X (IP66) for non LED models only.
Mounting orientation: Unit not position sensitive. Probe must be aligned with airflow.
Weight: 12.6 oz (357.2 g).
Agency Approvals: CE.

OPTIONAL DISPLAY VERSION
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: 13.3 oz (377 gr).

ACCESSORIES
A-156 Universal Mounting Plate  1/2″ female NPT ( to be used with A-159)
A-158 Split flange mounting kit
A-159 Duct mounting gland

Pls order above accessories in the section “PITOT TUBE SERIES 160”  in the category “Pitot tubes”

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Product available - for orders before 12.00, shipping the same day.
(In case of payment by bank transfer, shipment will be made upon payment received).

Product temporarily out of stock - average delivery time: 10-20 days.

641 - Air velocity transmitter - 641RM-12-LED 641RM-12-LED Code: 6616

Probe length: 12″ (308,4 mm).
Display: Yes.

REMOTE PROBE CONSTRUCTION

575.00 
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641 - Air velocity transmitter - 641RM-18-LED 641RM-18-LED Code: 26457

Probe length: 18″ (457 mm).
Display: Yes.

REMOTE PROBE CONSTRUCTION

575.00 
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641 - Air velocity transmitter - 641RM-24-LED 641RM-24-LEDCode: 22777

Probe length: 24″ (609,6 mm).
Display: Yes.

REMOTE PROBE CONSTRUCTION

575.00 
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641 - Air velocity transmitter - 641-6 641-6 Code: 742

Probe length: 6″ (152,4 mm).
Display: no.

494.00 
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641 - Air velocity transmitter - 641-6-LED 641-6-LED Code: 2667

Probe length: 6″ (152,4 mm).
Display: yes.

618.00 
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641 - Air velocity transmitter - 641-12 641-12 Code: 1658

Probe length: 12″ (304,8 mm).
Display: no.

494.00 
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641 - Air velocity transmitter - 641-12-LED 641-12-LED Code: 3940

Probe length: 12″ (304,8 mm).
Display: yes.

618.00 
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641 - Air velocity transmitter - 641-18 641-18 Code: 3401

Probe length: 18″ (457,2 mm).
Display: no.

494.00 
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641 - Air velocity transmitter - 641-18-LED 641-18-LED Code: 2406

Probe lenght: 18″ (457,2 mm). 
Display: yes.

618.00 
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641 - Air velocity transmitter - 641-24 641-24 Code: 5124

Probe length: 24″ (609,6 mm).
Display: no.

494.00 
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641 - Air velocity transmitter - 641-24-LED 641-24-LED Code: 9591

Probe length: 24″ (152,4 mm).
Display: yes.

618.00 
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641 - Air velocity transmitter - 641-36 641-36 Code: 3877

Probe length: 36″ (914 mm).
Display: no.

494.00 
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641 - Air velocity transmitter - 641-36-LED 641-36-LED Code: 9510

Probe length: 36″ (914 mm). 
Display: yes.

618.00 
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Accessories