• 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 = 70deg C

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.

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