Dwyer Air Velocity Transmitter: 4 mA to 20 mA, 32°F to 140°F, 641RM-12
The DWYER Air Velocity Transmitter (model 641RM-12) is an air velocity transmitter with a 4 mA to 20 mA output, measuring from 250 fpm to 15,000 fpm. It operates within a temperature range of 32°F to 140°F and offers…
SKU 3G-OTH-168002
Also listed as: 641RM12 · 641RM 12
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 641RM-12) is an air velocity transmitter with a 4 mA to 20 mA output, measuring from 250 fpm to 15,000 fpm. It operates within a temperature range of 32°F to 140°F and offers an air velocity accuracy of +/-3% from 32 to 122 °F. This product does not include a calibration certificate.
Frequently Asked Questions
What is the DWYER 641RM-12 air velocity transmitter used for?
The DWYER 641RM-12 air velocity transmitter measures air flow from 250 fpm to 15,000 fpm in HVAC, ventilation, and industrial process systems. It outputs a 4 mA to 20 mA signal for monitoring and control applications.
What are the specifications of the DWYER 641RM-12?
The DWYER 641RM-12 has an air velocity range of 250 fpm to 15,000 fpm, accuracy of +/-3% from 32°F to 122°F, and operates from 32°F to 140°F. It provides a 4 mA to 20 mA output and does not include a calibration certificate.
Where to buy the DWYER 641RM-12 worldwide?
3G Electric supplies the DWYER 641RM-12 air velocity transmitter worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to install the DWYER 641RM-12 air velocity transmitter?
Install the DWYER 641RM-12 in a straight duct section per manufacturer guidelines, ensuring proper orientation for accurate flow measurement. Connect the 4 mA to 20 mA output to your control system. Verify wiring and seal the mounting point to prevent leaks.
Used in
Common applications for DwyerDwyer Products
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.
