14
Appendix A
Power Requirements:
Four AA-size batteries (included) or AC adapter (optional) 9 VDC,
300 mA, 4-18 watts (input voltage and frequency vary depending on
which adapter is used)
1
Overpressure range = 7 psi (190 in. H
2
O, 360 mmHg, 48 kPa).
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.
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