Sound Level Meter
10
9. MEASUREMENT PREPARATION
(1) Battery Loading:
(a) Back out the screw at the top of the battery cover and lift the cover
away from the unit.
(b) Insert the four AA batteries, observing proper polarity as depicted on
the bottom of the battery compartment.
(c)Replace the battery cover and tighten the screw.
Note:
It is possible to use size AA rechargeable batteries, but a separate
charger must be provided for such batteries, since the unit is not
designed to recharge batteries.
(2) Battery capacity indicator:
When operating the unit on batteries, periodically check this indicator to
determine the remaining battery capacity.
(3) AC Adapter Connection:
When the AC adapter is used, insert the plugs of the adapter into the DC9V
connector on the bottom panel.
Note: When the AC adapter is connected, the unit will be powered form the
adapter, also when batteries are inserted.(The AC adapter has priority)
10. OPERATING PRECAUTIONS
(1) Wind blowing across the microphone would bring additional extraneous
noise.
When using the instrument in the presence of wind, it is a must to mount the
windscreen to not pick up undesirable signals.
(2) Calibrate the instrument before operation if the instrument was not in use
for a long time or operated in bad environment.