Chauvin Arnoux CA834 Manual De Instrucciones página 16

2. LCD 4-digits display :
MAX Holding of maximum value
MIN Holding of minimum value
OVER Indicates that the selected measurement range is inappropriate. Use the
LEVEL button to select the suitable measurement range.
UNDER Indicates that the selected measurement range is inappropriate. Use the
LEVEL button to selected the suitable measurement range.
FAST Fast response time.
SLOW Slow response time.
dBA A type frequency weighting.
dBC C type frequency weighting.
88-180 Indication of selected measuremnt range.
Battery low
-L.O.- Measurement below 30dB
AUTO Auto-range selected
REC Data recording in progress
FULL Memory full
Auto-power OFF activated
3. ON/OFF button and backlighting
Press the button to turn on the sonometer.
Press the button again to turn the backlighting ON/OFF.
Hold the button down for 3 seconds to turn off the sonometer.
Note : When you turn on the sonometer, the screen displays how much memory space is still
available (32000 maximum).
4. MAX / MIN mode activation / deactivation push button.
5. Recording mode activation / deactivation push button.
6. Frequency weighting selection push button.
7. Response time selection push button.
8. Measurement range selection push button.
9. Sonometer measurement head including the microphone.
10. Adjusting screw to modify the calibration of the sonometer.
11. USB interface for extracting data and controlling the sonometer via a PC.
12. Analogue output for recording on an external system using a jack connector.
13. 9V DC mains power supply input.
14. Threaded hole for mounting on a tripod.
15. Battery cover.
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