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5.3.2 Lamp Replacement and Adjustment of the Light Source Mirror
The lifetime of both the deuterium (D
2
) lamp and the halogen (WI) lamp is approx. 1000 hours.
After prolonged use, the noise level in the measured data will increase because of the low light
intensity.
5.3.2.1 Lamp replacement
WARNINGS!:
(1) The lamp is hot when lit. Therefore, before replacing the lamp,
switch off the light source and wait for at least 15 minutes.
(2) To avoid electric shock, turn off the power and remove the power
cable from the outlet.
Notes:
(1) Never loosen any screws other than those required for lamp
replacement.
(2) When handling the lamp, wear clean cloth gloves. Never handle the
lamp with bare hands.
(3) Never touch the mirror or any other optical elements by hands.
(4) If the lamp surface is contaminated, clean it with gauze soaked in
ethanol and wipe it with dry clean gauze.
<<Replacement of halogen (WI) lamp>>
(1) Slide the outer lid of the light source unit to remove it and then remove the inner lid (Fig. 5.4).
The way to remove the lamp is the same for V-630, even though V-650/660/670 is shown in
figure 5.4.
Light source lid (outside)
Light source lid (inner side)
Figure 5.4 Removal of light source lid (V-650/660/670)
(2) Remove the halogen lamp from the socket.
(3) Insert a new halogen 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.
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