YOKOGAWA UV700G, User Manual

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<8. Maintenance>
8-6
IM 12K01B02-01E
8.2.3 Replacement of Desiccant Agent and Seal Washers
for Screws
Here describes the replacement of desiccant agent and seal washers for screws in the analyzer
case.
Replace the desiccant agent and seal washers every 6 months.
1. Turn ON the maintenance switch.
2. Turn OFF the power switch.
3. Remove the detector from the measuring tank and put on the calibration tank.
4. Remove the 4 screw covers from the upper part of the detector and remove the 4 screws
using a screwdriver.
Remove the 4 screw covers from the upper part
of detector.
Upper part of detector
5. Take the old desiccant agent and replace with the new one attached with this unit (square
type, 5 pieces in 1 set). Remove the dirt from the surface of new desiccant agent and put in
the detector with the film surface facing downward.
6. Remove the screws and replace the seal washers between the screw and case (4 pieces).
7. Install the upper part of detector, 4 screws, and 4 screw covers.
CAUTION
• Packing for the seal is attached on the circumference of the upper part of detector.
Confirm that the packing is not removed, caught, or contaminated before tightening.
• Replaced desiccant agent can be disposed of as a general waste.