Dwyer 475-3-FM Intrinsically Safe Digital Manometer (0 to 200.0″w.c.)

Description

The Series 475 Handheld Digital Manometer measures positive, negative, or differential pressures of air and natural gases in ranges from 0 to 200.0″w.c.. 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.

Dwyer 475-3-FM Offers
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
Applications

Monitoring natural gas pressures on boilers and other combustion equipment
Field calibration of other instruments
Monitoring or troubleshooting HVAC/R systems
Air velocity monitoring, when used with a Dwyer Pitot tube and AV calculator (sold separately)

Dwyer 475-3-FM Specifications
Pressure Ranges 0 to 200.0″ w.c. (0 to 49.82 kPa)
Max. Pressure: 30 psi (207 kPa)
Service Air and compatible combustible gases
Housing Stainless Steel
Accuracy ±0.5% F.S., 60 to 78°F (15.6 to 25.6°C)
±1.5% F.S., 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 FS
Temperature Limits 0 to 140°F (-17.8 to 60°C)
Compensated Temperature Limits 32 to 104°F (0 to 40°C)
Display 4-digit LCD
Power Requirements 9V alkaline battery
Process Connections Two barbed connections for use with 1/8″ or 3/16″ I.D. tubing
Two compression fittings for use with 1/8″ I.D. x 1/4″ O.D. tubing (for 100 psi or higher pressure ranges)
Agency Approvals CE, FM approved to CLASS 1, DIV. 2 GROUPS ABCD/T4 Ta = 70°C.