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                      1. Home
                      2. Sensors & Transducers
                      3. Sensors
                      4. Flow Sensors
                      5. Flow Transmitters
                      Print Page

                      641-12

                      Flow Transmitter, 12" Probe, 4mA to 20mA, 12 VDC, 35 VDC, ± 3%

                      DWYER 641-12
                      Image is for illustrative purposes only. Please refer to product description.
                      ManufacturerDWYER
                      Manufacturer Part No641-12
                      Order Code4288728
                      Product Range641 Series
                      Technical Datasheet

                      Data Sheet

                      See all Technical Docs
                      Available to Order
                      Manufacturer Standard Lead Time: 5 week(s)

                      Notify me when back in stock

                      QuantityPrice
                      1+Rs.91,974.700
                      Price for:Each
                      Minimum: 1
                      Multiple: 1
                      Rs.91,974.70
                      Enter Your Part No/Line Note
                      Added to your Order Confirmation, Invoice, and Dispatch note for this order only.
                      This number will be added to the Order Confirmation, Invoice, Dispatch note, Web confirmation Email and Product Label.

                      Product Information

                      ManufacturerDWYER
                      Manufacturer Part No641-12
                      Order Code4288728
                      Product Range641 Series
                      Technical Datasheet

                      Data Sheet

                      Flow Rate Max-
                      Flow Rate Min-
                      Flow Transmitter Output4mA to 20mA
                      Supply Voltage Min12VDC
                      Supply Voltage Max35VDC
                      Port Style1/2" MNPT
                      Accuracy± 3%
                      Media TypeArgon, Carbon Dioxide, Clean Dry Air, Helium, Nitrogen, Non-Corrosive Dry Gas
                      Process Connection Size1/2"
                      Process Connection TypeNPT Male
                      Pipe Size-
                      Sensor MountingPipe Mount
                      Operating Temperature Min0°C
                      Operating Temperature Max60°C
                      Product Range641 Series
                      SVHCTo Be Advised
                      Pressure Max100psi
                      Supply Voltage DC Max35V
                      Supply Voltage DC Min12V

                      Product Overview

                      641-12 is a series 641 air velocity transmitter. 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

                      Accuracy

                      ± 3%

                      Process Connection Size

                      1/2"

                      Pipe Size

                      -

                      Operating Temperature Min

                      0°C

                      Product Range

                      641 Series

                      Pressure Max

                      100psi

                      Supply Voltage DC Min

                      12V

                      Flow Rate Min

                      -

                      Supply Voltage Min

                      12VDC

                      Port Style

                      1/2" MNPT

                      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

                      To Be Advised

                      Supply Voltage DC Max

                      35V

                      Technical Docs (1)

                      Technical Data Sheet EN

                      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
                      Tariff No:85389000
                      US ECCN:EAR99
                      EU ECCN:NLR
                      RoHS Compliant:Yes

                      RoHS

                      RoHS Phthalates Compliant:Yes

                      RoHS

                      SVHC:To Be Advised
                      Download Product Compliance Certificate

                      Product Compliance Certificate

                      Weight (kg):.476272
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                      element14 is a trading name of element14 India Private Limited.
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