SubSurface Instruments LD-18 Operation Manual page 16

<Opening/closing of battery compartment cover and replacement of batteries>
First of all, assure that the power for the main body is OFF.
Lift the cover lock tab, and remove the battery compartment cover.
Replace batteries in accordance with the indication.
Close the battery compartment cover, and positively lock the cover lock.
CAUTION
Use four alkali C-size batteries (LR14) available on the market.
If batteries other than what we specify are used, a difference may arises in the continuous use
time due to a difference in the battery capacity or depending on working conditions.
WARNING
If batteries other than what we specify are used, our warranty will not cover any failure resulting
from them.
Pay attention the direction of batteries at the occasion of their replacement. (Burst, fire and
personal injury may result.)
Do not use batteries of different kinds as mixed. (Burst and liquid leakage may result.)
Do not use unused batteries with used batteries as mixed.
Dispose used batteries in accordance with instructions given by the local municipality.
Cover lock:The battery compartment
cover opens when this tab lifted.
13
3. Before use of the detector
[Hardware]