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The Dwyer Series 475 Handheld Digital Manometers measure 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.
Dwyer Series 475 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
Dwyer Series 475 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
Dwyer Series 475 Specification
| Service: | Air and compatible combustible gases. |
| Wetted Materials: | Consult factory. |
| Accuracy: | ±0.5% Full Scale, 15.6 to 25.6°C; ±1.5% Full Scale from 0 to 15.6°C and 25.6 to 40°C. |
| Pressure Hysteresis: | ±0.1% of Full Scale. |
| Pressure Limits: | See Model Chart below |
| Temperature Limits: | 17.8 to 60°C. |
| Compensated Temperature Limits: | 0 to 40°C. |
| Storage Temperature Limits: | 20 to 80°C. |
| Display: | 10.6 mm 4-digit LCD. |
| Resolution: | See Model Chart below |
| Power Requirements: | 9 V alkaline battery, installed non-functional, user replaceable. |
| Weight: | 306 g. |
| Process Connections: | Two barbed connections for use with 1/8″ (3.18 mm) or 3/16″ (4.76 mm) I.D. tubing. Two compression fittings for use with 1/8″ (3.18 mm) I.D. x 1/4″ (6.35 mm) |
| Agency Approvals: | CE, FM. |
Dwyer Series 475 Ordering Information
| Model | Description |
|---|---|
| 475-000-FM | Handheld digital manometer, range 0-1.000″ w.c. (.2491 kPa), max. pressure 5 psig. |
| 475-00-FM | Handheld digital manometer, range 0-4.000″ w.c. (0.996 kPa), max. pressure 5 psig. |
| 475-0-FM | Handheld digital manometer, range 0-10.00″ w.c. (2.491 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. |
