9 • Compulevel
TM
Measurement system
To use the HOLD function to freeze a measurement on the measurement
module display:
Press HOLD momentarily. The word ‘hold’ will appear on the left side of
the display window. To release the HOLD function, momentarily press the
HOLD key again. The word ‘hold’ will no longer appear on the display.
To use the HOLD function to obtain and hold a measurement reading from
a remote or hard to reach location:
1) Press the HOLD key momentarily while the measurement module is in
motion. The unit will begin to emit a series of beeps.
2) Move the measurement module to the location to be measured.
3) Allow the unit to settle there until it stops beeping.
4) Retrieve the measurement module. The reading from that location will
be retained on the display window. Press HOLD momentarily again to
exit the function.
ZERO
Press the ZERO key for two seconds to make the current elevation
(location of the measurement module) the zero reference or benchmark.
Hold & Zero
HOLD can be pressed before measurement module is in position. It will
freeze the display only when movement and beeping stops.
Display not visible
ZERO her
e
first
Deep, dark tr
ench
Framing
New
r
efer
ence plane
Original reference plane
(set during calibration)
When zeroed
above…
Will read -10.00’
below
-10.00’
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