14
Because of the safety it’s very important to hold the
device UNDER the operating button and avoid each
contact with the top plate.
5.3.1 Powering up the Pinhole Detector
Hold the button until the TQC logo shows on the display. As soon as the logo disappears the
device is ready for use. Below the start-up screen and the main screen:
TIP!
To test if the device
detects
an electronic contact briefly hold the crocodile clamp against
the wet sponge. When functioning properly feedback is immediately given (audio / tactile),
depending on the settings.
Connect the grounding clamp to an untreated piece of the substrate (which is electrically con-
nected with the measurement area)
Place the wet sponge, on the substrate. The left side of the screen indicates that the ground cable
is connected properly. If the coating in the selected position is in good condition, the right half of
the screen will indicate this.
When current flows from the sponge wand to the grounding clamp, this indicates a defect in the
DPBUJOHBOEUIFVTFSXJMMCFOPUJöFEVTJOHUIFTFMFDUFEGFFECBDLNFUIPE T BVEJPUBDUJMF
->
EN