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<<Replacement of deuterium lamp>>
(1) Slide the outer lid of the light source unit to remove it.
(2) Remove the deuterium lamp from the socket.
(3) Insert a new deuterium lamp into the socket (Fig. 5.5 or 5.6).
(4) Adjust the light source mirror as described in Section 5.3.2.2 or 5.3.2.3.
D
lamp
WI lamp
Adjustment screw
D
lamp stopper
Figure 5.5 Light source unit (V-630)
WI lamp stopper
D
2
lamp
Adjustment screw
Figure 5.6 Light source unit (V-650/660/670)
5.3.2.2 Adjustment of iRM type light source mirror
When the light source is replaced, if the beam from the lamp is not incident upon the entrance slit
correctly, problems will occur, such as insufficient light intensity, a non-linear baseline, and
incorrect values for measurements. Whenever the lamp is replaced, be sure to adjust the light
source mirror.
WARNINGS!:
(1) The lamp is hot when lit. Do not touch with bare hands.
(2) Wear glasses (ordinary glasses or sunglasses) during adjustment to
protect your eyes from ultraviolet rays.
(3) Do not touch the wiring either with your hand or with a screwdriver.
Contact with the wiring may cause electric shock.
Note: Never loosen any screws other than those required for lamp replacement.
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