TQC SP7316, Manual

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6. Place the needle gentle on the blasted surface and press the base of the gauge-holder firmly against the
steel. Do not drag the instrument.
7. Read the peak-valley value.
8. Make 10 measurements on each desired location and determine the mean as being the profile of the
surface.
5.2 Measuring Thickness
1. Press the On/Off button to switch the gauge on.
2. Check if the right tip is chosen. (the round tip is suitable for measuring thickness)
3. Choose parameter by pressing the IN/MM button.
4. Place the needle of the gauge on the flat glass specimen (zero plate) and press the gauge with the
holder down until the base of the holder stands firmly on the zero plate.
5. Press the ZERO button to make the instrument read zero.
6. Gently remove a piece of paint with a diameter of 8mm. from the surface. Try to remove the paint
without damaging the underground material.
7. Place the needle on the removed paint. Make sure the aluminium footing stands on the painted area.
8. The Coating thickness appears on the display.
6 CHANGING TIPS
Step 1
Two tips are supplied.
The sharp needle tip is
suitable for measuring
roughness, the round
one for thickness.
Step 2
Take the tip between
two fingers and turn
anti-clockwise until it is
loose. If the tip stays
stuck, go to step 2a.
Step 2a
Only when loosening the tip
anti-clockwise by hand fails,
a pair of tongs may be used
GENTLY. Make sure the tip
remains undamaged.
Step 3
Turn the new tip
clockwise until it’s
stuck.
Step 4
The tips have been changed.
Don’t forget to store the tip
that’s not in use.