Rebar Scanner A60+
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5. The probe is placed on the surface of detected body and moved at
uniform speed in parallel with rebar and along the direction that is
vertical to rebar direction. The speed should be less than 20mm/s.
When the probe reaches the top of detected rebar, the instrument
gives the humming to prompt that rebar is under this position and
show covering layer thickness automatically. At this time, press
the SAVE key to save detection results into current set project No.
The probe is moved to and fro at nearby position in reverse
direction. At the same time, two-digit value on the right side of
screen can be observed. The position that the minimum occurs
and Signalis the maximum is accurate position of rebar. Center of
rebar is coincident with that of diamond pattern on the probe.
Value determination
When covering layer thickness is more than certain value,
detection signal of probe is rather weak. At this time, to reduce
wrong interpretation, rebar position is not determined automatically
by means of general procedure. It requires that user determines the
rebar position according to change laws of current value. Such
determination is called as value determination. Observe the
two-digit value in small print shown on the right side of the screen.
When this value is changed from large to small, it indicates that the
probe is near the rebar gradually. Continue to move the probe. When
this value is changed from small to large, it indicates that the probe
Scanning direction
Rebar position
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