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5 CHECK AND ADJUSTMENT
● For non-prism mode
If the instrument is in the hold mode, press the [HOLD] key to release the hold mode.
15 Press the [NP/P] key to change the non-prism
mode.
16 Collimate the center of the prism.
17 Press the [HOLD] key to hold the quantity of
the light.
The mark "#" will appear on the right side of the
signal level indicator.
18
Repeat the previous procedure 6 to 14 in the
same way in the non-prism mode.
If the difference is within 2', no problem for use.
If the difference is more than mentioned value,
contact with your Topcon dealer or Topcon.
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