General Tools and Instruments LDM60 - Manual (Page 27)

OPERATING & MAINTENANCE TIPS
Because the laser silently auto powers off after 30 seconds of
inactivity while the meter remains powered on, you’ll often find
that when you press the
button expecting to make a
measurement, all you have done is reactivate the laser. In this
case, you have to press the button a second time to take a
reading. To minimize the number of times this happens, learn to
distinguish the slightly different beeps that accompany making
a measurement and activating the laser. Compared to the
measurement beep, the laser activation beep has a slightly lower
frequency (tone).
When measuring horizontal distances, keep the meter as
horizontal as possible.
When measuring long distances, use a target plate made of
white paper or cardboard. Using a monopod or resting the meter
on a surface (rather than holding it in your hand) helps to steady
the laser on distant targets.
The meter will almost always register an “Info 204” error if the
target is an LCD or plasma computer or TV screen. The
calculation error results because the display absorbs the
incoming beam and reflects nothing back to the meter.
MEAS
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