Topcon DL-103 Series, Instruction Manual

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GENERAL HANDLING PRECAUTIONS
1) Staff
Precautions are needed to avoid to be dirt or hurt of Pattern Staff sur-
face or connected part of each staff.
The pattern surface or the connected part is possible to be touched
and injured on the occasion of storage or transportation.
If the patterns dirtied or injured, accurate read out or measurement
can not be expected because the instrument reads out the white and
black patterns of the staff as electrical signals. Otherwise the quality of
accuracy of the instrument reduces or sometimes measurement can
not be done.
2) Tripod
The screws on each leg of the tripod must be tightened firmly.
3) On tribrach
If tribrach is not installed correctly, measuring precision may be
effected. Occasionally check adjusting screws of the tribrach . Tighten
the Base Fixing Screw.
4) Guarding the instrument against shocks
When transporting the instrument, provide some protection to mini-
mize risk of shocks. Heavy shocks may cause the measurement to be
faulty.
5) Carrying the instrument
When carrying the instrument at the site, always grip its handgrip.
6) Do not expose the instrument directly to the sunlight
Never leave the instrument in extreme heat (+122 degrees F) longer
than necessary. Heat can adversely affect its performance. Never
expose the instrument's objective lens to direct sunlight without a filter.
Sunlight may damage the components inside the instrument.
7) Sudden changes of temperature
Any sudden change of temperature to the instrument may result in a
reduction of the measuring range. When taking the instrument out
from a heated vehicle let instrument acclimate itself to the ambient
temperature.
8) Battery level check
Confirm battery level remaining before operating.