Checks And Adjustments; Circular Level - Topcon DS Series Instruction Manual

24.CHECKS AND ADJUSTMENTS

DS is a precision instrument that requires fine adjustments. It must be inspected and adjusted before
use so that it always performs accurate measurements.
• Always perform checking and adjustment in the proper sequence beginning from "24.1 Circular
Level" to "24.10 Laser Plummet (Option)".
• In addition, the instrument should be inspected with special care after it has been stored a long time,
transported, or when it may have been damaged by a strong shock.
• Make sure the instrument is securely set up and stable before performing checks and adjustments.
24.1

Circular Level

The bubble tube is made of glass, so it is sensitive to temperature changes or to shock. Check and
adjust it as outlined below.

• Be careful that the tightening tension is identical for all the adjusting screws. Also, do not over-
tighten the adjusting screws as this may damage the circular level.
PROCEDURE Checking and adjusting
1. Level while checking the display.

"7.2 Levelling"

• Tap Tilt angle compensation icon
status bar or in Starkey mode to display electric
circular level.

• If the tilt sensor is misaligned, the circular level is
not adjusted correctly.

"24.2 Tilt Sensor"
2. Check the position of the bubble of the circular
level.
If the bubble is not off-center, no adjustment is
necessary.
If the bubble is off-center, perform the following
adjustment.
in the
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