Precaution
1.
Avoid heavy shock
For long-distance transportation, pay attention to external
package and shock proof.
2.
Setting and moving
When placing the instrument on the tripod head, hold the
instrument and rotate the tripod screw until it is fixed securely
on top of the tripod head. Repeat the above mentioned
procedure for removing the instrument from tripod head. If the
instrument must be carried with tripod attached, never carry
it horizontally over the shoulder, always keep it in vertical
direction when carried. The instrument must be kept in
container for long-distance transportation.
3.
Keep it clean
Clean dust of the instrument surface with cotton wool or small
brush after using the instrument. Dry the instrument on time
after it exposed in the rain. Make sure not to use chemicals
to clean battery case and plastic parts. If necessary, damp soft
cloth is permissible. High aborbent cotton and lens-cleaning
paper are used for exposed optics. Never use handkerchief
and clothes.
4.
Avoid the long-time irradiation
Never leave the instrument in extreme heat longer than
necessary. It could adversely affect its performance.
5.
Check the battery
Be sure to check the battery for voltage level before use.
6.
Notice
Store the instrument in a place with good air circulation and
low humidity. Temperature is kept under 45 C. Often change
drier in the instrument container.
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