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@
14
Fig. 7
@
Fig. 8
2
Turning the Burner ON
# The burner should be centered before the first use after it has been
mounted or replaced. (see page 44) When resetting the burner hour
counter, press and hold the reset button until the reading becomes
"0.0".
Set the main switch of the power supply unit to "
of the burner will stabilize in 5 to 10 minutes after the burner is ignited.
}A discharge-type mercury burner may not turn on by the first try due to
the characteristics of the burner. If a burner does not turn on, set the main
switch to "
" (OFF), wait for 5 to 10 seconds and set the main switch to
" " (ON) again.
# To avoid shortening the service life of the burner, do not turn a burner
off for 2 hours after turning it on but use the shutter in this period.
# When turning on a mercury burner that has been turned off, wait for
about 10 minutes after it is turned off, because it cannot be turned
on unless the mercury vapor in the burner has cooled down and
liquefied.
}If the lamp housing is opened while the burner is on, the power supply
stops to ensure safety. In this case, set the main switch to "
wait for more than 10 minutes before retrying to turn it on again. Do not
open the lamp housing unless it has cooled down sufficiently.
3
Opening/Closing the Shutter
}The shutter can be used to close the shutter temporarily when changing
the mirror unit turret or interrupting observation for a short period.
1. When the shutter knob @ is set to "{", the shutter is engaged to shut off
the excitation light.
2. When the shutter knob @ is set to "¦", the shutter is disengaged and
opened.
4
Using the Field Iris Diaphragm
}The centering of the field iris diaphragm can be adjusted (see page 45).
}Push in or pull out the field iris diaphragm lever @ as required to prevent
color fading due to fluorescence in parts other than the observed region.
" (ON). The arc image
" (OFF) and
(Fig. 7)
(Fig. 8)
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