6) Always secure the Base Unit to prevent movement during measurements
– it does not need to be level.
7) Avoid using ZIPLEVEL
®
beyond the specied ranges of elevation or tem-
perature. The display will ash 8888 when beyond the +/-20’ (6m) vertical
range and the CAL will be on steady for temperatures below -22°F (-30C)
or above +158°F (+70C).
8) Occasionally check the 4’ (121.9cm) length of the fully extended Unipod
for changes in length caused by wear. Adjust its length if necessary.
9) As with conventional instruments, additional errors may be caused dur-
ing use outdoors on sunny or windy days. In such conditions pull out only
as much Cord as is needed and avoid unnecessary loops over objects.
Measurements are less affected by sun/shade in early morning, late af-
ternoon, when overcast, in full shade or indoors. If a measurement varies
when breezy, take the average reading.
33 ▪ HOW TO MEASURE ACCURATELY
ZIPLEVEL
®
is rugged, durable and designed to provide years of reliable
performance when properly used. Here are some guidelines:
1) Avoid excessive strain on the Measurement Module by guiding the Cord
with the left hand during use (see page 8).
2) Whenever possible use the protective boot on the Measurement Module.
Avoid dropping the Measurement Module and never use as a hammer.
3) Do not immerse the Measurement Module in water or any other liquid or
gas and avoid contact with solvents.
4) Minimize ZIPLEVEL
®
wear by wiping with a damp cloth (avoid scratching
display window) or rinsing lightly to remove mud and dirt from the Base
Unit, Cord and Measurement Module. In extreme cases the single screw
at the back of the reel can be removed to release the reel from the hous-
ing for a thorough hosing.
5) Keep the Cord, Measurement Module or Base Unit out of the path of
vehicle trafc and out of contact with hot objects such as smoldering
cigarette butts, fresh asphalt or welding.
ZIPLEVEL CARE ▪ 34
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