8
Time weighting: FAST
Measurement mode: MAX MIN Mode function disable.
Level range: 50 to 100dB
(2) Insert t he m icrophone h ousing c arefully into t he i nsertion ho le of t he
calibrator.
(3) Turn on the switch of calibrator and adjust the CAL potentiometer of the unit.
The level display will indicate the desired level .
All products are well calibrated before shipment.
Recommended Recalibration cycle : 1 year.
VII
.
MEASUREMENT PREPARATION
(1) Battery Loading
Remove the battery cover on the back and put in one 9V Battery.
(2) Battery Replacement
When the battery voltage drops below the operating voltage, this symbol will
appear . Replace 9 Volt battery.
(3) AC Adapter Connection
When the AC adapter is used, insert the plugs of the adapter into the DC 9V
connector on the side panel.
VIII. OPERATING PRECAUTIONS
(1) Wind blowing across the microphone would bring additional noise.
When us ing the i nstrument i n t he pr esence of wind, a lways us e t he
windscreen to eliminate unwanted noise.
(2) Calibrate the instrument before operation if the instrument was not in use for
a long period of time.
(3) Do not store or operate the instrument at high temperature and high humidity
environment.
(4) Keep the microphone dry and avoid severe vibration.
(5) Please t ake out t he ba ttery and keep t he i nstrument i n a l ow humidity
environment when not in use.
IX. MEASUREMENT
(1) Open battery cover and install a 9V battery in the battery compartment.
(2) Turn pow er on and s elect t he d esired r esponse T ime and Weighting. I f t he
sound source consists of short bursts or only catching sound peak, set
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