8
5) Precisely centering and leveling
Through observation of optical plummet, slightly loosen the central connecting screw and move the
instrument evenly (Don‟t rotate the instrument), making the instrument precisely collimating to the
station point. Then tighten the central connecting screw and level the instrument precisely again.
Repeat this operation till the instrument collimate precisely to the measurement station point.
2.3 BATTERY
TIPS
1) The battery operating time depends on the environmental conditions such as ambient temperature,
charging time, times of charging and discharging etc. It is recommended to fully charge the battery before
operation or prepare spare batteries.
2) Distance measurement consumes more power than angle measurement.
3) When the measurement mode is changed, the battery power will not immediately show the decrease
or increase. The battery power indicating system shows the general status but not the instantaneous
change of battery power.
CAUTIONS
1) Use the original charger HC-III.
Remove the on-board battery and connect it to battery charger. When the indicator light on the battery
charger is red, the recharging process is on. When recharging is complete, the indicator lamp turns green.
2) Before removing the battery from the instrument, make sure that the power is turned off. Otherwise, the
instrument may be damaged.
3) The charger has built-in circuitry for protection from overcharging. However, do not leave the charger
plugged into the power after recharging is completed.
Be sure to recharge the battery at a temperature from 0° to 45°C. Recharging may be abnormal beyond
specified temperature range.
When the indicator light does not light after connecting the battery and charger, either the battery or the
charger may be damaged. Please contact technician for repairing.
4) Rechargeable battery can be recharged 300 to 500 times. Complete discharge of the battery may
shorten its life.
In order to get the maximum life, be sure to recharge it at least once a month.
2.4 REFLECTORS
When measuring distance, a reflector needs to be placed at the target place. Reflector system comes
with single prism or triple prisms, which can be mounted with tribrach onto a tripod or mounted onto a
prism pole. Reflector system can be self-configured by users according to the job.
2.5 MOUNTING AND DISMOUNTING
Dismounting
If necessary, the instrument (including reflector prisms with the same tribrach) can be dismounted from
tribrach. Loosen the tribrach locking screw in the locking knob with a screwdriver. Turn the locking knob
about 180° counter-clockwise to disengage anchor jaws, and take off the instrument from tribrach.
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