Topcon DL-501 Instruction Manual page 22

4. BASIC OPERATION
• If other DLC1A-compatible instruments are turned ON and placed within the operating range of the
Remote trigger, they may be unintentionally operated at the same time.
• Do not place the Remote trigger under heavy objects or in a tight space. A key may be continuously
depressed and deplete battery power.
• Working duration shortens under low temperatures.
{MEAS}
{ENT}
{ESC}
14
Performs same operation as Measure key on the
DL
Same operation as {} on DL
Same operation as {ESC} on DL