Airflow PVM610 Руководство по эксплуатации и обслуживанию - Страница 15

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Appendix A
Specifications
Specifications are subject to change without notice.
Static/Differential Pressure:
1
Range
:
Accuracy:
Resolution:
Velocity From a Pitot Tube:
2
Range
:
3
Accuracy
:
Resolution:
Instrument Temperature Range:
Operating (Electronics):
Storage:
Instrument Operating Conditions:
Altitude up to 4000 meters
Relative humidity up to 80% RH, non-condensing
Pollution degree 1 in accordance with IEC 664
Transient over voltage category II
External Meter Dimensions:
3.3 in. × 7.0 in. × 1.8 in. (8.4 cm × 17.8 cm × 4.4 cm)
Meter Weight:
Weight with batteries:
Power Requirements:
Four AA-size batteries (included)
1
Overpressure range = 7 psi (190 in. H
2
Pressure velocity measurements are not recommended below 1,000 ft/min (5 m/s) and are
best suited to velocities over 2000 ft/min. Range can vary depending on barometric
pressure.
3
Accuracy is a function of converting pressure to velocity. Conversion accuracy improves
when actual pressure values increase.
-15 to +15 in. H
2
+3735 Pa)
±1% of reading ±0.005 in. H
0.001 in. H
O (0.1 Pa, 0.01 mm Hg)
2
250 to 15500 ft/min (1.27 to 78.7 m/s)
±1.5% at 2000 ft/min (10.16 m/s)
1 ft/min (0.1 m/s)
40 to 113°F (5 to 45°C)
-4 to 140°F (-20 to 60°C)
0.6 lbs (0.27 kg)
O, 360 mmHg, 48 kPa).
2
O (-28.0 to +28.0 mm Hg, -3735 to
O (±0.01 mm Hg, ±1 Pa)
2
11