User's Manual

Repeat the steps above until the instrument aims at the

station precisely.

4.3 Loading and unloading of battery

The information of the battery

--Full battery, operation is available.

--Just appearing this information which means the battery

can support the instrument for another 4 hours.

--The battery is lower, and it’s better to replace.

--Measurement is impossible, and it’s necessary to replace

and recharge battery.

Notes:

◆The working time of battery will be effected by many

factors, such as ambient temperature, recharging time,

recharging and discharging times. For safety, we suggest you

recharge the battery full or prepare several full batteries before

operation.

◆The battery symbol only indicates power capability for

current measurement mode. The power consumption in distance

measurement mode is more than in angle mode, if the instrument

enters into distance measurement mode from angle mode, the

power maybe auto-off because of lower battery.

Notes for loading/ unloading batteries:

▲You should switch off the instrument before unload the

battery.

Notes for charging:

▲Though the charger is designed with overcharge

protection circuit, one must unplug the charger after finished

charging.

▲Suitable temperature range for charging is between -45℃

and +45℃. Charging process may be abnormal if being over the