Print Page
641-12-LED
Flow Transmitter, 12" Probe, LED, 4mA to 20mA, 12 VDC, 35 VDC, ± 3%
Image is for illustrative purposes only. Please refer to product description.
ManufacturerDWYER
Manufacturer Part No641-12-LEDCopy
Manufacturer Standard Lead Time7 weeks
Order Code4288729
Product Range641 Series
Your Part Number
Available to Order
Manufacturer Standard Lead Time: 7 week(s)
Notify me when back in stock
| Quantity | Price |
|---|---|
| 1+ | Php73,035.500 |
Price for:Each
Minimum: 1
Multiple: 1
Php73,035.50
Line Note
Added to your Order Confirmation, Invoice, and Dispatch note for this order only.
Product Information
ManufacturerDWYER
Manufacturer Part No641-12-LEDCopy
Manufacturer Standard Lead Time7 weeks
Order Code4288729
Product Range641 Series
Technical Datasheet
Flow Rate Max-
Flow Rate Min-
Flow Transmitter Output4mA to 20mA
Supply Voltage Min12VDC
Supply Voltage Max35VDC
Accuracy± 3%
Port Style1/2" MNPT
Process Connection Size1/2"
Process Connection TypeNPT Male
Pipe Size-
Sensor MountingPipe Mount
Operating Temperature Min0°C
Operating Temperature Max60°C
Product Range641 Series
SVHCNo SVHC (04-Feb-2026)
Pressure Max100psi
Supply Voltage DC Min12V
Product Overview
641-12-LED is a series 641 air velocity transmitter with LED display. It is ideal instrument for monitoring air flow. This transmitter uses a heated mass flow sensor which allows for precise velocity measurements at various flow rates and temperatures. Typical applications include exhaust stack flow monitoring, HVAC air velocity measurements, clean room fresh air supply, air control in drying processes, fan supply and exhaust tracking and ensuring proper lab hood exhaust flow rates.
- 12" probe length
- Field selectable ranges from 250FPM (1.25m/s) to 15,000FPM (75m/s) suit any application
- Easy push button set-up reduces installation time
- Compact housing minimizes installation footprint
- 4-20mA output for use with most building management systems
- Digital filter for signal damping
- Selectable 0.5 to 15 (seconds) output filter
- 1/2˝ male NPT process connection and screw terminal electrical connection
- Maximum 300mA current consumption and 600 ohm loop resistance
- Unit not position sensitive, probe must be aligned with airflow
Technical Specifications
Flow Rate Max
-
Flow Transmitter Output
4mA to 20mA
Supply Voltage Max
35VDC
Port Style
1/2" MNPT
Process Connection Size
1/2"
Pipe Size
-
Operating Temperature Min
0°C
Product Range
641 Series
Pressure Max
100psi
Flow Rate Min
-
Supply Voltage Min
12VDC
Accuracy
± 3%
Media Type
Argon, Carbon Dioxide, Clean Dry Air, Helium, Nitrogen, Non-Corrosive Dry Gas
Process Connection Type
NPT Male
Sensor Mounting
Pipe Mount
Operating Temperature Max
60°C
SVHC
No SVHC (04-Feb-2026)
Supply Voltage DC Min
12V
Technical Docs (1)
Legislation and Environmental
Country of Origin:
Country in which last significant manufacturing process was carried outCountry of Origin:United States
Country in which last significant manufacturing process was carried out
Country in which last significant manufacturing process was carried outCountry of Origin:United States
Country in which last significant manufacturing process was carried out
Tariff No:90268020
US ECCN:EAR99
EU ECCN:NLR
RoHS Compliant:Yes
RoHS
RoHS Phthalates Compliant:Yes
RoHS
SVHC:No SVHC (04-Feb-2026)
Download Product Compliance Certificate
Product Compliance Certificate
Weight (kg):.521631