-4-
Digital Sound Level Meter
MAX
F/S
HOLD
A/C
E. Calibration
1. Please use 94dB@1KHZ standard calibration instrument
2. Setting on sound level meter: Frequency weighting is A,Time weighting
is FAST
3. Insert the microphone carefully into a 1/2-inch hole in the standard
audio source (94dB@1KHz).
4. Turn on the power switch of the standard sound source, adjust the
potentiometer at the circular hole in the battery door with slotted
screwdriver, and make the LCD display 94.0
Calibration knob
Note:
Our products are all well calibrated before Shipment.
Recommended recalibration cycle: 1 year.