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3.5
Setting the Threshold
The ColcheK
2™ has a facility to set an acceptance threshold. Once set, any wall loss area
equal to or above the threshold will be indicated on the display, and the display background
will turn red.
The bar graph reading on bottom the display will show the threshold setting and give a
graphical display of any indications and how close they are to the threshold point. To set the
threshold level follow the below instructions:
1.
Switch the unit on and
‘wake up’ as normal.
2.
Zero the probe as previously described. If no column is available a temporary zero can
be obtained by pushing the Down arrow button. A full zero as described in Section 3.1
will need to be carried out prior to inspection.
3.
Press and hold the
‘A’ button to bring up the ‘set up’ screen. Use the ‘up’ arrow button
to set the required threshold level.
4.
Press the
‘A’ button to exit the threshold ‘set up’ screen.
5.
The desired threshold is set; inspect as normal.
3.6
Setting the Time Off Period
The time off period can be set by following the below instructions.
1.
Switch the unit on and
‘wake up’ as normal.
2.
Zero the probe as previously described. If no column is available a temporary zero can
be obtained by pushing the down arrow button. A full zero as described in Section 3.1
will need to be carried out prior to inspection.
3.
Press and hold the
‘A’ button to bring up the ‘set up’ screen. Use the Down arrow
button to set the required off time.
4.
Press the
‘A’ button to exit the Set Up screen.
5.
The desired off time is set. Inspect as normal.
