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HOME > DWYER > PRESSURE > MANOMETERS > DIGITAL > AIR-VELOCITY-KIT-0-20-WC-TELESCOPING-PITOT-TUBE-475-1T-FM-AV

Dwyer 475-1T-FM-AV

Handheld Digital Manometer w/ Air Velocity Kit, 0-20" w.c., Pitot Tube

Brand: Dwyer
Model No: 475-1T-FM-AV
Our Model No: 4751TFMAV
Condition: NEW
PDF Document Icon Data Sheet (348 KB)
475-1T-FM-AV
($477.00)
Sale $414.99
  • Includes an Air velocity kit with a pitot tube, rubber tubing, pressure tips, and a 36" telescoping pitot tube
  • Range: 0 - 20.00" w.c. (4.982 kPa)
  • Max pressure: 10 psig
  • Rugged aluminum case protects instrument from damage during transport/use
  • Large, easy to read LCD and simple operation
  • FM approved to be intrinsically safe in hazardous locations, Class 1, Div 2, Groups A, B, C, D, T4 Ta = 70°C
  • Product Applications
  • Monitoring natural gas pressures on boilers and other combustion equipment
  • Air velocity monitoring, when used with a Dwyer Pitot tube and AV calculator
  • Field calibration of other instruments
  • Monitoring or troubleshooting HVAC systems

The Dwyer 475-1T-FM-AV Convenient all-in-one kit is small, light and easy to use. No set-up or leveling needed. Digital manometer reads from 0-20.00" w.c. with ± 0.5% F.S. accuracy and minor divisions to 0.01. Large 1/2" LCD readout is easy to see in poorly lighted areas and has "low battery" warning. The 4751TFMAV Kit includes convenient telescoping Pitot tube, Model 166T, fully adjustable from 11.5 to 36 inches (29.2 to 91.4 cm). Also, two static pressure tips with magnetic mounting measure pressure drop across filters, condenser coils, etc. Kit comes complete with rubber tubing, 9V battery, step drill, AV calculator slide rule, and a custom fitted carrying case. An indispensable test kit for the plant engineer, industrial hygienist and HVAC technician.

Service: Air and compatible combustible gases.
Wetted Materials: Consult factory.
Accuracy: ±0.5% Full Scale, 60 to 78° F (15.6 to 25.6° C)
±1.5% Full Scale from 32 to 60° F and 78 to 104° F (0 to 15.6° C and 25.6 to 40° C).
Pressure Hysteresis: ±0.1% of Full Scale.
Pressure Limits: 0 to 20.00 in w.c.
Temperature Limits: 0 to 140° F (-17.8 to 60° C).
Compensated Temperature Limits: 32 to 104° F (0 to 40° C).
Storage Temperature Limits: -4 to 176° F (-20 to 80° C).
Display: 0.42" (10.6 mm) 4-digit LCD.
Maximum pressure: 5 psig
Power Requirements: 9 V alkaline battery, installed non-functional, user replaceable.
Process Connections: Two barbed connections for use with 1/8" (3.18 mm) or 3/16" (4.76 mm) I.D. tubing. Two compression fittings for use with 1/8" (3.18 mm) I.D. x 1/4" (6.35 mm) O.D. tubing for 475-7 & 475-8 only.
  • 1 - User manual
  • 1 - Telescoping Pitot tube
  • 1 - Pitot tube w/compression fitting
  • 2 - No. A-303 static pressure tips w/magnetic mounting
  • 2 - 3/16" ID rubber tubing
  • 1 - No. A-397 step drill for 3/16" - 1/2" holes in 1/16" increments
  • 1 - No. A-532 AV slide chart
  • 1 - 9 V battery
  • 1 - Fitted polyethylene case
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Datasheet: PDF Document Icon(348 KB)
Manual: PDF Document Icon(288 KB)
Drawing: PDF Document Icon(111 KB)
Air Velocity and Flow Calculator App for iOS Devices: iOS App on iTunes
Air Velocity and Flow Calculator App for Android Devices: Android app on Google Play
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