Description

Series 475 Intrinsically Safe Handheld Digital Manometer

Ranges from 1″ w.c. to 150 psid, ±0.5% Accuracy

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.

NIST CALIBRATION available in Product Configurator.

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°C

 

Handheld Unit

Model	Description
475-0-FM	Handheld digital manometer, range 0-10.00″ w.c. (2.491 kPa), max. pressure 5 psig.
475-00-FM	Handheld digital manometer, range 0-4.000″ w.c. (0.996 kPa), max. pressure 5 psig.
475-000-FM	Handheld digital manometer, range 0-1.000″ w.c. (.2491 kPa), max. pressure 5 psig.
475-1-FM	Handheld digital manometer, range 0-20.00″ w.c. (4.982 kPa), max. pressure 10 psig.
475-2-FM	Handheld digital manometer, range 0-40.00″ w.c. (9.96 kPa), max. pressure 10 psig.
475-3-FM	Handheld digital manometer, range 0-200.0″ w.c. (49.82 kPa), max. pressure 30 psig.
475-4-FM	Handheld digital manometer, range 0-10.00 psi (.6895 bar), max. pressure 30 psig.
475-5-FM	Handheld digital manometer, range 0-20.00 psi (1.379 bar), max. pressure 60 psig.
475-6-FM	Handheld digital manometer, range 0-30.00 psi (2.069 bar), max. pressure 60 psig.
475-7-FM	Handheld digital manometer, range 0-100.0 psi (6.895 bar), max. pressure 150 psig.
475-8-FM	Handheld digital manometer, range 0-150.0 psi (10.34 bar), max. pressure 200 psig.

 

Air Velocity Kit

Model	Description
475-0-FM-AV	Air velocity kit, range 0-10.00″ w.c. (2.491 kPa), max. pressure 5 psig, kit includes static pressure tips, rubber tubing, Pitot tube, step drill, air velocity slide chart and carrying case.
475-00-FM-AV	Air velocity kit, range 0-4.000″ w.c. (0.996 kPa), max. pressure 5 psig, kit includes static pressure tips, rubber tubing, Pitot tube, step drill, air velocity slide chart and carrying case.
475-1-FM-AV	Air velocity kit, range 0-20.00″ w.c. (4.982 kPa), max. pressure 10 psig, kit includes static pressure tips, rubber tubing, Pitot tube, step drill, air velocity slide chart and carrying case.
475-1T-FM-AV	Air velocity kit, range 0-20.00″ w.c. (4.982 kPa), max. pressure 10 psig, kit includes static pressure tips, rubber tubing, telescoping Pitot tube, step drill, air velocity slide chart and carrying case.