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Zero adjustment
During the Light measurement, use the light sensor cover
( 3-21 Fig.1) blank the Light Sensor ( 3-22, Fig. 1 ) completely,
if the Display is not show zero value, together press the
" ▲ Button " (3-5, Fig. 1 ) & " ▼ Button " (3-6, Fig. 1 )
> 3 seconds, Display will show the zero value.
4-6 Data Hold
During the measurement, press the " Hold Button " ( 3-3,
Fig. 1 ) once will hold the measured value & the LCD will
display a " HOLD " symbol.
Press the " Hold Button " once again will release the data
hold function.
4-7 Data Record ( Max., Min. reading )
1) The data record function records the maximum and
minimum readings. Press the " REC Button " ( 3-4, Fig.
1 ) once to start the Data Record function and there
will be a " REC " symbol on the display.
2) With the " REC " symbol on the display :
a) Press the " REC Button " ( 3-4, Fig. 1 ) once, the
" REC MAX " symbol along with the maximum value
will appear on the display.
If intend to delete the maximum value, just press
the " Hold Button " ( 3-3, Fig. 1 ) once, then the
display will show the " REC " symbol only & execute
the memory function continuously.
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