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Dwyer Instruments 475-00-FM | Digital Pressure Meter | 0.14Psi | Model 475-00-Fm | NULL
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 front panel's dual push pads manage the pressure unit selection, auto zero, and on/off functions, making setup unnecessary and enabling easy use. 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
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| 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 | Limits: 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) |
- Checking the pressure of natural gas in boilers and other combustion machinery.
- Using an AV calculator and a Dwyer Pitot tube, air velocity monitoring.
- Calibration of other instruments in the field.
- Keeping an eye on or debugging HVAC systems.
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