
9 10
ranges.
(6) When HOLD (data hold )mode is chosen.The hold
function freezes the reading in the display. Press the
HOLD button momentarily to activate or to exit the HOLD
function
(7) Turn OFF the instrument and remove and remove
battery when not in use.
VIII
.
Calibration Procedures
Using a standard Acoustic Calibrator (94dB, 1kHz Sine wave)