7 Service and Maitenance 7-23
Pay attention to the direction of the filter wheel during installation. The arrow on the filter
wheel indicates the direction of the light path, or put the end surface with chamfer angle to
the bottom of the installation hole.
Figure 7-7 Filter Assembling Structure
9. Install the filter to the filter wheel hole with the right order and direction. Cover the filter
with fixture BA10-J12-01 and tighten the 8 screws on the filter. If you can not find the
fixture on the spot, handle carefully.
10. Install dustproof cover.
11. Install
the optical module back.
12. Pull out the porcelain socket, the cooling fan of the optical module, the filter wheel
home position sensor cable and the motor cable socket.
13. Turn on the power, and check the movement of the filter wheel. Install the front
plate and the back panel when the lamp is turned on.
14. Confirm the photoelectric performance after replacement. Please refer to 4.6.4.4
Checking Performance of Photometer for details.
Precautions:
1. Wear white clear cotton gloves while operating.
2. Do not get the filter damaged while screwing the screws.
3. Press the filter gently into the installation hole on the filter wheel.
4. If there is dirty on the surface of the filter, clean it with ethanol-soaked defatted cotton.
5. Check the rotation of the filter wheel.
7.6.4 Unclogging Sample Probe
When the probe is clogged, the fluid flow will become abnormal.
Follow this procedure to remove, unclog and install the sample probe.
7.6.4.1 Removing Probe
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