Checkline MK-720 User Manual
Page 15
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Setting of contrast
MK-720 displays [Settings CONTRAST] first after turning on at setting mode.
It is for adjusting of contrast.
You can make dark by pushing blue button
(12 steps).
After push at darkest setting, screen goes to
brightest one.
MK-720 is set at current contrast setting by
one push of white button.
MK-720 transitions to [Alarm level setting].
Alarm level setting
MK-720 displays [Settings ALARM LEVEL] after push of white button after turning on at setting mode.
It is for setting alarm level.
You can set from 0% to 50%
After push at 50%, setting value returns to
0%.
To cancel alarm, set it 0%.
MK-720 is set at current alarm level setting
by one push of white button.
MK-720 transitions to [
Frequency of
power supply]
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Setting of power supply frequency
MK-720 displays [Settings FREQUENCY] after two push of white button after turning on at setting mode.
Set power supply frequency used in
operation area. (50Hz or 60Hz)
MK-720 is set at current frequency by one
push of white button.
MK-720 transitions to “Clock setting”.
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