Dwyer 475-1-FM Digital Manometer 0 to 20" WC
Product Description
The Dwyer 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.
Overview
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)
Specifications
Pressure Ranges | 0 to 20.00" w.c. (0 to 4.982 kPa) Max. Pressure: 10 psi (68.9 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. |
What's in the Box
Dwyer 475-1-FM Digital Manometer 0 to 20" WC