Dwyer 641-6 Air Velocity Transmitter, 250 to 15,000 fpm, 4-20 mA Output
The DWYER Air Velocity Transmitter (model 641-6) is an air velocity transmitter that outputs a 4 mA to 20 mA signal. It measures air velocity from 250 fpm to 15,000 fpm within an operating temperature range of 32°F…
SKU 3G-OTH-167998
Also listed as: 6416 · 641 6
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The DWYER Air Velocity Transmitter (model 641-6) is an air velocity transmitter that outputs a 4 mA to 20 mA signal. It measures air velocity from 250 fpm to 15,000 fpm within an operating temperature range of 32°F to 140°F, with an accuracy of +/-3% from 32 to 122 °F. This unit does not include a calibration certificate.
Frequently Asked Questions
What is the Dwyer 641-6 air velocity transmitter used for?
The Dwyer 641-6 air velocity transmitter is used in HVAC and industrial ventilation systems to measure and transmit air velocity from 250 fpm to 15,000 fpm. It outputs a 4 mA to 20 mA signal for monitoring and control applications such as duct balancing, fume hood monitoring, and cleanroom airflow verification.
What are the specifications of the Dwyer 641-6 air velocity transmitter?
The Dwyer 641-6 air velocity transmitter measures air velocity from 250 fpm to 15,000 fpm with an accuracy of +/-3% from 32°F to 122°F. It operates in temperatures from 32°F to 140°F and outputs a 4 mA to 20 mA signal. The manufacturer part number is 641-6. A calibration certificate is not included.
Where to buy the Dwyer 641-6 air velocity transmitter worldwide?
You can source the Dwyer 641-6 air velocity transmitter through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we source and deliver this model to your location.
How to install the Dwyer 641-6 air velocity transmitter?
Install the Dwyer 641-6 air velocity transmitter in a straight duct section with minimal turbulence, following the manufacturer's mounting orientation. Connect the 4 mA to 20 mA output to your control system per the wiring diagram. Ensure the operating temperature stays within 32°F to 140°F for accurate readings.
Used in
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3G Electric supplies Dwyer air velocity transmitters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
