Phone 800-517-8431
HOME > DWYER > PRESSURE > MANOMETERS > DIGITAL > AIR-VELOCITY-KIT-5-PSIG-RANGE-10-00-WC-475-0-FM-AV

Dwyer 475-0-FM-AV

Handheld Digital Manometer with Air Velocity Kit, 5 psig, range 0-10.00" w.c.

Brand: Dwyer
Model No: 475-0-FM-AV
Our Model No: 4750FMAV
Condition: NEW
PDF Document Icon Data Sheet (348 KB)
475-0-FM-AV
($348.00)
Sale $302.76
  • Includes an Air velocity kit with a pitot tube, rubber tubing and pressure tips
  • Range: 0 - 10.00" w.c. (2.491 kPa)
  • Max pressure: 5 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 475-0-FM-AV Mark III Handheld Digital Manometer with an Air Velocity Kit measures positive, negative, or differential pressures of air and natural gases in ranges from 0 to 10 in w.c. with a metric range of 2.491 kPa. The dual push pads on the front panel control the on/off, auto zero, and pressure unit selection, allowing for simple operation with no set up needed. When used with a Dwyer Pitot tube, the 4750FMAV can also be used as an air velocity gauge. The kit includes static pressure tips, rubber tubing, Pitot tube with compression fitting, step drill, air velocity slide chart and carrying case.

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 10.00 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 - 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
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
↑ Back to Top