To check whether the tester is accurate, just
Insert the indenter into the hole of the
calibrated test Block. Apply enough force
to make firm contact between the top
surface of the test block and the presser
foot. The reading should agree with the
value stamped on the test block. If not, just
carry out Zero calibration and High end
calibration.
7.1 Zero calibration
Hold the durometer vertically with the point
of the indenter hanging in the air, the
reading on the display should be “0”. If not,
depress the “Zero key” to make the tester
display “0”.
7.2 High end calibration
Just place the indenter onto a flat glass,
apply enough force to make firm contact
between the glass and the presser foot. The
readings on the display should lie between
99.5 and 101. If not, press “CAL key” to
carry out high end calibration.
8. BATTERY REPLACEMENT
8.1 When the battery symbol appears on the
display, it is time to replace the batteries.
8.2 Slide the Battery Cover away from the tester
and remove the batteries.
8.3 Install batteries paying careful attention to
polarity.