Ada ZSM 130 А00111 [27/36] Zsm 130

Ada ZSM 130 А00111 [27/36] Zsm 130
ZSM 130
MEASUREMENT FOUNDATION
27
С C-Weighting
Lo Low Range (35~100dB)
Hi High Range (65~130dB)
Low-Battery
3. Backlight
4. Weighting Select button: A/C
A: A – Weighting. For general sound level measurements.
C: C – Weighting. For checking the low- frequency content of noise.
(If the C-Weighted level is much higher than the A-Weighted level, then there is a large
amount of low-frequency noise)
CAL 94dB: Calibration using the internal oscillator
5. Power On/Off
6. Time weighting button: F/S
F (fast response): for normal measurements (fast varying noise).
S (slow response): for checking average level of uctuating noise.
7. Level range select button: Hi/Lo
Lo: 35~100dB; Hi: 65~130dB
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