
34
Specifi cations
Output sound pressure level compensation for static (atmospheric) pressure
The output sound pressure generated by the NC-72A changes at a rate
proportional to the static (atmospheric) pressure (See "Reference"
section on page 17). To determine the exact output sound pressure
level, the static pressure at the time of use should be measured, and
compensation according to the specifi ed sound pressure level data
given in the calibration chart should be applied.
Specifi cations of supplied barometer (compliance with class LS/C)
Measurement range
905 hPa to 1055 hPa (90.5 kPa to 105.5 kPa)
Ambient conditions for use
+16°C to +30°C
Dimensions
135 (dia.) mm × 45 (H) mm
Weight 345
g