Rebar Scanner A60+
25
Chapter IV Detection
Precautions：
1. During entering into detection status (Thickness Test,
Diameter Test and Rebar Scan) each time, system can calibrate
the probe automatically again. At this time, the probe should
be placed in air or away from magnetic medium like metal etc.
2. Detected surface is flat as much as possible to improve the
detection accuracy and avoid wrong interpretation.
3. During detection, the probe is moved at uniform speed as
much as possible to avoid moving in reverse direction before
finding the rebar, that is to say, avoid moving the probe to and
fro before finding the rebar. Otherwise, it is easy to cause
wrong interpretation.
4. The speed of moving the probe should not be more than
20mm/s. Otherwise, it is easy to cause larger error even rebar
missing.
5. If continuous working time is longer, to improve the detection
accuracy, pay attention that the probe should be placed in air
and away from the rebar every other about 5mins. Press the
ENTER key to reset once and eliminate all errors (when
detection results are doubted, after resetting it, detect it again).
6. When Thickness Test function of detecting covering layer
thickness under the condition of known rebar diameter, to
assure detection accuracy of covering layer thickness, user
should set the rebar diameter value corresponding to actual
rebar diameter because rebar with different diameters responds
the probe differently. Therefore, when the same rebar is
detected by means of different rebar diameter setting values,
detection results are sure to be different.
7. Range key is used to switch the first nominal range and the
second nominal range to increase the accuracy of detecting
covering layer thickness. After switching, confirm key must be
pressed to reset once.
8. Pay attention to the scanning direction of trolley to avoid
moving in reverse direction. Otherwise, it is easy to cause
wrong interpretation.
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