4)Setting value by " Digital adjusting knob "
Rotate " Digital adjusting knob " ( 3-2, Fig. 1 )
to adjust the exact display value.
*
Turn the knob to clockwise direction will increase
the display value.
*
Turn the knob to counter-clockwise direction will
decrease the display value.
*
If rotate the knob slowly, the display value will
change with high resolution ( change just with 1
digit ).
*
If rotate the knob fast, the display value will
change with low resolution ( change with more
digits ).
Setting value by " + button " , " - button "
Use the " + button " ( 3-4, Fig. 1 ) , " - button " ( 3-3,
Fig. 1 ) to adjust the exact display value.
*
Press the " + button " once ( continuously ) will
increase the display value.
*
Press the " - button " once ( continuously ) will
decrease the display value.
*
If press the button once, the display value will
change with high resolution ( change just with 1
digit ).
*
If press the button continuously, the display value will
change with low resolution ( change with more
digits ).
When checking the speed, care must be taken
to ensure that the strobe is flashing in unison
(one to one) with the object being monitored.
8
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