Battery Replacement And Disposal - Extech Instruments SDL600-NIST User Manual

Calibration
Frequent calibration is recommended and is often required by noise standards and
directives.
1. Turn the meter ON
Put the meter in the 'A' weighting mode
2.
Put the meter in the 'SLOW' response mode
3.
4. Place the optional 94db calibrator onto the microphone
5. Turn the calibrator ON
Adjust the meter's CAL potentiometer (located on the right side under the snap-
6.
off compartment cover) so that the meter's display matches the output of the
calibrator (94.0 dB)

Battery Replacement and Disposal

When the low battery icon
of accurate readings are still possible in this condition; however batteries should be replaced as
soon as possible:
1. Remove the two (2) Phillips screws from the rear of the meter (directly above the top of the tilt
stand).
2. Remove and safely place the battery compartment and screws where they will not be damaged
or lost.
3. Replace the six (6) 1.5V 'AA' batteries, observing polarity.
4. Replace the battery compartment cover with the two (2) Phillips screws.
Never dispose of used batteries or rechargeable batteries in household waste.
As consumers, users are legally required to take used batteries to appropriate collection
sites, the retail store where the batteries were purchased, or wherever batteries are sold.
Disposal: Do not dispose of this instrument in household waste. The user is obligated to
take end-of-life devices to a designated collection point for the disposal of electrical and
electronic equipment.
appears on the LCD, the batteries must be replaced. Several hours
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