HD-BA-e-2030 5
wait until the MAX symbol disappears from the display. Then carry out the
operations described in points 4.3 and 4.4 again.
4.5 If a reading other than MAX is required, the "MAX" display option must be
deselected. The display will then show the reading of the current value. Hold the
hardness tester stationary in the selected operating mode to obtain the desired
reading (after 1s by default).
4.7 Mean value measurements
4.7.1 To obtain an average value from several measurements, press the "N/AVE" key.
The display will show the "N" symbol, then a number from the range 1 to 9, preceded
by the symbol "No".
The number indicates the number of measurements used to determine the mean
value. Each time the "N/AVE" key is pressed, the digit is increased by 1. The digits
change continuously, so that after pressing the "N/AVE" key, the number '9' is replaced
by '1'.
4.7.2 Select the desired digit and press the "MAX" or "ZERO" key to return to the
measuring mode or wait a few seconds until the "0" symbol appears in the display.
4.7.3 Perform measurements according to sections 4.3 - 4.5. The following
measurements must be carried out at a distance of 6mm from each other. After each
measurement, the respective reading and measuring times are shown on the display.
If the number of measurements reaches the specified number, first the reading of the
last measurement is shown and then an average of the last 'N' measurements. This is
followed by an acoustic signal and the symbol "AVE" appears on the display.
4.7.4 In order to determine a further average value, the activities according to the point
4.7.3.
4.7.5 To exit the 'Average' mode, press and hold the "N/AVE" key until the 'N' symbol
disappears from the display.