Dwyer 475 Series Handheld Differential Pressure Gauge
Handheld digital differential pressure gauge, range 1" w.c. to 150 psid, with Pitot tube for air velocity measurement.
- Original Factory Genuine, Tenfold Compensation for Counterfeits
- Full Machine Warranty, Lifetime Maintenance
- In Stock, Shipped on the Same Day
The 475 Series handheld digital differential pressure gauge ranges from 1″ w.c. to 150 psid and measures positive, negative and differential pressure with an accuracy of ±0.5% FS. Two front-panel push buttons handle power on/off, auto-zero and unit switching; with a Pitot tube it can be used as an air velocity meter, making it suitable for boiler gas pressure and on-site air flow measurement.
| Parameter Name | Technical Specifications |
|---|---|
| Main specifications | |
| Medium | Air and compatible combustible gases |
| Wetted materials | Consult factory |
| Accuracy | ±0.5% full scale, 60~78°F (15.6~25.6°C); ±1.5% full |
| Range | 32~60°F and 78~104°F (0~15.6°C and 25.6~40°C). |
| Pressure hysteresis | ±0.1% full scale |
| Pressure limits | See selection table |
| Temperature limit | 0~140°F (-17.8~60°C). |
| Temperature compensation limits | 32~104°F (0~40°C). |
| Storage temperature | -4~176°F (-20~80°C). |
| Display | 0.42" (10.6 mm) 4-digit LCD. |
| Resolution | See selection table |
| Power Supply | 9 V alkaline battery, for better |
| Weight | 10.8 oz. (306 g). |
| Process connection | Two barbed fittings: for 1/8" (3.18 mm) or 3/16" (4.76 mm) I.D. tubing. Two compression fittings, 1/8" (3.18 mm) I.D. x 1/4" (6.35 mm) O.D. tubing, for 475-7 and 475-8 |
| Certification | CE, FM. |
| Model selection | |
| Selection table | Published on the official website as a screenshot of the selection table; for complete model numbers and ranges, see the official manual "475.i.pdf" in the documentation package. |
- Handheld and portable; two push buttons handle power on/off, auto-zero and unit switching
- Accuracy ±0.5% FS (15.6~25.6°C)
- Measures positive, negative and differential pressure
- Can be used as an anemometer with a Pitot tube
Boiler gas pressure testing
Measure burner gas pressure and verify it is within the set range.
On-site air volume and differential pressure inspection
Measure duct air velocity with a Pitot tube and convert to air volume.
Need selection advice or bulk quotation?
Send us the working condition parameters (signal type, medium, range, pressure, temperature, connection method), and our engineers will provide a selection scheme and quotation within 1 working day.
- Phone consultation +86-21-66020232
- Email inquiry web@qishan-sh.com
