Casella CEL CEL-63X - Manual (Page 8)

CEL-63x Environmental & Occupational Noise Meter
8 Casella CEL
CAUTION
The CEL-63x instrument can operate from a battery power supply.
Use only batteries of the correct type, and do not mix battery types in the
instrument. Refer to
“ Battery supply ” on page 10 for advice about battery types.
Do not try to charge non-rechargeable batteries.
Do not leave discharged batteries in the CEL-63x instrument.
Install new batteries as a complete set. Do not fit batteries that have a mixed
state of charge. Refer to
“ How to fit new batteries ” on page 10 for instructions to
install batteries.
Remove all batteries from the CEL-63x instrument if you will not use the
instrument for a long time.
Always follow local regulations to dispose of used batteries.
CAUTION
The CEL-63x instrument is not waterproof. Do not immerse the instrument in water or
use it in the rain.