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Dwyer Instruments 475-5-FM | Handheld digital manometer | Range 0-20.00 psi (1.379 bar) | Max. Pressure 60 psig
From 1 in w.c. (0.249 kPa) to 150 psid (10.34 bar), the Dwyer 475 portable digital manometer monitors the positive, negative, or differential pressures of air and natural gases. The pressure unit selection, auto zero, and on/off functions are controlled by the two push pads on the front panel, making operation straightforward and requiring no setup. The Series 475 can also be used as an air velocity gage when paired with a Dwyer Pitot tube. According to FM approval, this product is fundamentally safe in Class 1, Div 2, Groups A, B, C, D, and T4 Ta = 70°C hazardous areas.
- Specifications
- Features
- Downloads
| Accuracy | +/-0.5% Full Scale, 60 to 78°F (15.6 to 25.6°C); +/-1.5% Full Scale from 32 to 60°F and 78 to 104°F (0 to 15.6°C and 25.6 to 40°C) |
| Approvals | CE, FM |
| Connection | Process: 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) O.D. tubing for 475-7 & 475-8 only |
| Display | 0.42" (10.6 mm) 4-digit LCD |
| Material | Wetted: Consult Factory |
| Power | 9 V alkaline battery, installed non-functional, user replaceable |
| PRESSURE | Hysteresis: +/-0.1% of Full Scale |
| Temperature | Compensated Temperature Limits: 32 to 104°F (0 to 40°C) |
| Temperature | Limit: 0 to 140°F (-17.8 to 60°C) |
| Temperature | Storage Temperature Limits: -4 to 176°F (-20 to 80°C) |
| Weight | 10.8 oz. (306 g) |
- Keeping an eye on the natural gas pressure in boilers and other combustion apparatus.
- Air velocity monitoring using an AV calculator and a Dwyer Pitot tube.
- Calibration of other instruments in the field.
- HVAC system monitoring or troubleshooting.
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