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7 INTERPRETATION OF THE RESULTS
Cracks and defects in the coating will form when the stresses exceed the max flexibility of the coating. Generally
the forming of such cracks is preceded by a small discoloration of the coating. The visibility of the cracks is very
depending on the type and color of the coating, just as the visual capability’s of the operator. An optional
maximum magnification of 10x may be used when evaluating the samples. Please refer to the appropriate
standard for further information and possibility’s regarding magnification and illumination.
8 CALIBRATIONS
• Prior to the first use and later at regular intervals the TQC Manual Cupping Test should be calibrated.
• Check the indenter and panel clamps for any dirt or impurities. If dirty clean by using a soft cloth and non
aggressive solvent like Iso Propyl Alcohol.
• Turn the handle such that the indenter has recited below the support
ring.
• Place the calibration plate such that any possible large dents or
deformities are not above the indenter.
• Close the clamp by turning both handles. Do not use excessive force
during closing.
• Turn on the micrometer by pressing the on/off button.
• Slowly and Gently turn the handle using the most sensitive finger, by
turning it as close to the center as possible. When any extra
resistance can be felt immediately stop and hold the handle in place
• Press the zero key of the Micrometer to set this as the zero level.
• Turn back the indenter several mm and again very delicately turn the
indenter up. again resistance should be felt at the zero mm.
9 REPLACING BATTERIES
• To change the battery open the battery compartment on to of the micrometer.
• Carefully take out the battery and note the orientation of the battery.
• Replace the battery and carefully reinsert the holder into the
micrometer
• Turn the micrometer on and test if it is working.
• After changing the battery the micrometer needs to be calibrated.
Please follow the steps as described in 8
10 MAINTENANCE
• Though robust in design, this instrument is precision-machined. Never drop it or knock it over
• Always clean the instrument after use.
• Clean the instrument using a soft dry cloth. Never clean the instrument by any mechanical means such as a
wire brush or abrasive paper. This may cause, just like the use of aggressive cleaning agents, permanent
damage.
• Do not use compressed air to clean the instrument.
• Always keep the instrument in its case when not in use.
• We recommend annual calibration
