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The Series 475 Handheld Digital Manometer measures positive, negative, or differential pressures of air and natural gases in ranges from 1 in w.c. (0.249 kPa) to 150 psid (10.34 bar). 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 Series 475 can also be used as an air velocity gage.

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

Features

• 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°

Specifications

• Measures Pressure, Flow and Velocity; ±0.5% Accuracy
• Service : Air and compatible combustible gases.
• Accuracy : ±0.5%
• Temperature Limits : 0 to 140°F (-17.8 to 60°C).
• Power Requirements : 9 V alkaline battery, installed non-functional, user replaceable.
  

Models & Ordering