10
３－２.
Contrast display of interferometric sensor
Pressing the SET switch during is displayed,
is displayed for about 1 second
.
After that, CONT and AL1 lights turns ON as shown in right
figure and contrast of interferometric sensor measured by
light source 1 is displayed.
Contrast is an index to show a condition of dirt for interferometric sensor.
If the dirt is progressed, this level decreases. CONT light flashes during measurement
when contrast becomes below 0.35 and it becomes trouble condition when contrast
becomes below 0.30.(See 2-6 Trouble indication and countermeasures).
Progress speed of the dirt for interferometric sensor or replacement interval of the
interferometric sensor can be guessed by checking the contrast level.
When ●mark of MAINTENANCE switch is pressed, it returns to .
３－3.
Light amount display of interferometric sensor
When pressing SET switch while is
displayed, is displayed for about 1
second and then, both BRIGHT light and AL1 light
turn on, light amount for light source 1 is displayed
as show right figure.
Pressing▲▼switch, is displayed and then, light amount for light
source 2 is displayed.
These values are indexes to show deterioration of light source.
BRIGHT light flashes during measurement if the light amount becomes below 256 and
it becomes trouble condition when light amount decrease below 128.
Replacement interval of the interferometrice sensor can be guessed by checking this
value.
When ●mark of MAINTENANCE switch is pressed, it returns to .
０．５ ０ ８
４ ６ ２
