Series 477B Handheld Digital Manometer
Precise Air Pressure Measurement, ±0.1% F.S. Accuracy
The Series 477B Handheld Digital Manometers are versatile, hand-held, battery operated manometers 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 is a hold feature; plus both visual and audible overpressure alarms.
NIST CALIBRATION available in Product Configurator.
Product Applications
- Lab calibration of other pressure instruments
- Air velocity/air flow measurements in commercial buildings
Starting at $524.15
Specifications
- 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).
- Storage Temperature Limits:
- -4 to 176°F (-20 to 80°C).
- Display:
- 4-digit LCD (.425" H x .234" W digits).
- Resolution:
- See chart on catalog page.
- Power Requirements:
- 9 V alkaline battery. Battery included but not connected.
- 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.
- Weight:
- 10.2 oz. (289 g).
- Agency Approvals:
- CE.
Features
- Precise 0.1% FS accuracy provides four times better accuracy than most standard manometer/gages
- Aluminum housing protects instrument against damage
- 40 readings in internal memory reduces time to record data
Approvals
Model Chart
EXAMPLE | 477B | 1 | AT | Series 477B-1-NIST Handheld Digital Manometer, range 0-20.00" w.c., with NIST calibration. |
SERIES | 477B | Handheld Digital Manometer | ||
RANGE | 1 2 3 4 5 6 7 |
0-20.00" w.c. 0-40.00" w.c. 0-200.0" w.c. 0-10.00 psi 0-30.00 psi 0-50.00 psi 0-100.0 psi |
||
OPTIONS | COC FC NIST |
Certificate of Calibration Factory Calibration Certificate NIST Certificate of Calibration |
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Model | Description | Availability* | Price | |
---|---|---|---|---|
A-402A | Carrying case for most manometers; tough, gray nylon pouch, double zippered with belt loop | 1-3 days* |
$56.25 |
|
A-47X-BOOT | Rubber boot for manometers (manometer not included) | 1-3 days* |
$17.70 |