Dwyer 477B Series Handheld Digital Manometer Precise Air Pressure Measurement
product description
Handheld Digital Manometer, 0 to 20" w.c. (0 to 4.982 kPa)
The Series 477B Handheld Digital Manometer is a versatile, hand-held, battery operated manometer available in several basic ranges from 0-20 in w.c. up to 100 psi. All models measure either positive, negative or differential pressures with ±0.10% of full-scale accuracy. You can select from up to seven common English and metric pressure units so conversions are not necessary. A memory function allows storage of up to 40 readings for later recall and a backlight provides auxiliary lighting for hard-to-see locations. Also standard are a hold feature plus both visual and audible overpressure alarms.
Specification
| Brand name | Dwyer |
| Model | 477B Series |
| Range | 0-20.00" w.c. |
| Service | Air and compatible gases. |
| Wetted Parts | Consult factory. |
| Accuracy | ±0.10% of full scale from 60 to 78F° (15.6 to 25.6°C); ±1% of
full scale from 32 to 60 and 78 to 104°F (0 to 15 .6 and 25.6 to 40°C). |
| Pressure Hysteresis | ±0.1% of full scale. |
| Pressure Limits | See chart on catalog page. |
| Temperature Limits | 0 to 140°F (-17.8 to 60°C). |
| Display | 4-digit LCD (.425" H x .234" W digits). |
| Weight | 10.2 oz. (289 g). |
| Agency Approvals | CE |
Applications
- Lab calibration of other pressure instruments
- Air velocity/airflow measurements in commercial buildings
Product Dimension
Dwyer 477B-1
- Range: 0-20.00" w.c.
- 4 Digit LCD Display
- Precise 0.1% FS accuracy provides four times better accuracy than most standard manometer/gages
- Aluminum housing protects instruments against damage
- 40 readings in internal memory reduce time to record data
APPLICATIONS
- Lab calibration of other pressure instruments
- Air velocity/air flow measurements in commercial buildings
product display
Connections:Two barbed connections for use with 1/8" (3.18 mm) or 3/16" (4.76 mm) I.D. tubing for
477B-1, 477B-2, 477B-3, 477B-4 and 477B-5 only. Two compression fittings for use with
1/8" (3.18 mm) I.D. x 1/4" (6.35 mm) O.D. tubing for 477B-6 and 477B-7 only.
ACCESSORIES
Carrying case; tough gray nylon pouch protects any Series 477B Manometer; double zippered for quick and easy access, with a belt loop that snaps closed; 7-1/2˝H x 3˝W x 2-1/4˝D (191 x 76 x 57 mm).
Model /Description
477B-1 Handheld digital manometer, 0 to 20" w.c. (0 to 4.982 kPa)
477B-2 Handheld digital manometer, 0 to 40" w.c. (0 to 9.96 kPa)
477B-3 Handheld digital manometer, 0 to 200" w.c. (0 to 49.82 kPa)
477B-4 Handheld digital manometer, 0 to 10 psi (0 to 68.95 kPa)
477B-5 Handheld digital manometer, 0 to 30 psi (0 to 206.9 kPa)
477B-6 Handheld digital manometer, 0 to 50 psi (0 to 344.7 kPa)
477B-7 Handheld digital manometer, 0 to 100 psi (0 to 689.5 kPa)
