Ψηφιακός μετρητής στάθμης ήχου
Εύρος μέτρησης 30-130dB
Ακρίβεια 1,5dB
Δυνατότητα συγκράτησης μέτρησης και ένδειξη ελάχιστης και μέγιστης στάθμης
|
Functions |
Range |
Resolution |
Accuracy |
|
Noise（A Weighting） |
30～130dB |
0.1dB |
±1.5dB |
|
Sampling Rate |
FASH |
|
125ms |
|
SLOW |
|
1000ms |
|
|
Overload Indication |
|
|
OL |
|
MAX/MIN |
|
|
MAX/MIN |
|
Data Hold |
|
|
HOLD |
|
LCD Backlight |
|
|
Yes |
|
Auto Power Off |
|
|
5min |
|
Low Battery Indication |
|
|
3.0～3.5V |
|
Battery |
|
|
4.5V |
|
Current Consumption |
Working |
mA |
≤40mA |
|
Power off |
uA |
≤10uA |
|
|
Working Environment |
Temperature |
|
0～40℃ |
|
Humidity |
|
≤80%RH |
|
|
Storage Environment |
Temperature |
|
-20～60℃ |
|
Humidity |
|
≤75%RH |
|
|
Key Functions |
|||
|
ON/OFF |
Short press to turn on/off the meter |
||
|
MAX/MIN |
Short press to switch between MAX/MIN/normal measurement state |
||
|
FAST/SLOW |
Short press to select fast sampling (125ms) or slow sampling (1s) |
||
|
HOLD/BL |
Short press to enter data hold mode, long press to turn on/off backlight |
||
