5
2. PRECAUTIONS
detergent solution. Wring out excess water until the cloth is slightly damp, then
carefully wipe the surface of the unit. Do not use any organic solvents or
alkaline cleaning solutions.
• Store the DT in a dry room where the temperature remains fairly constant.
• Check the tripod for loose fit and loose screws.
• If any trouble is found on the rotatable portion, screws or optical parts (e.g.
lens), contact your local dealer.
• When the instrument is not used for a long time, check it at least once every 3
months.
C
"11. CHECKS AND ADJUSTMENTS"
• When removing the DT from the carrying case, never pull it out by force. The
empty carrying case should be closed to protect it from moisture.
• Check the DT for proper adjustment periodically to maintain the instrument
accuracy.
Содержание DT20C
Страница 1: ...SURVEYING INSTRUMENTS OPERATOR S MANUAL DT7C DT20C Electronic Digital Theodolite ...
Страница 2: ...This is the mark of the Japan Surveying Instruments Manufacturers Association ...
Страница 6: ...iv ...
Страница 49: ......
Страница 50: ...3rd ed 03 0809 Printed in China 2007 SOKKIA TOPCON CO LTD ...