7-18 7 Service and Maitenance
4 Expel air from the filter assemby
(1) Place the Main Power and Power of the analyzer to ON. Turn on the computer and
start the operating software.
(2) Reset 10 times (click Maintenance and then select Alignment, click Reset) to expel
the air in the filter assemby and the tubes.
(3) Check for large amount of buubles in the outlet tube. If yes, continue the resetting
process; if not, the air expelling is completed.
5 The installation is completed.
7.6 Irregular Maintenance
7.6.1 Checking photoelectric system performance
Check the performance of the optical system under the following conditions:
1. Lamp is replaced or reinstalled;
2. Filter is replaced or reinstalled;
3. Abnormal test data.
Please refer to 4.6.4.4 Checking Performance of Photometer for details.
7.6.2 Replacing the lamp
The lamp is tungsten-halogen lamp. It is necessay to replace it after the instensity drops to
a certain degree.
1. Place the Main Power to OFF. Wait at least 15 minutes until the lamp and its
housing cools down.
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