Maintenance and Service 8-5
Caution
Whenever the instrument is turned on, the Auto-Fill is activated. Do not
run the instrument with the saturator base and wick removed to prevent
spilling butanol from the butanol reservoir.
Changing the Filters
The CPCs use three liquid filters. The liquid filters are for butanol fill,
butanol drain, and the water removal system. The filter in the water
removal system is called Micro-pump filter. These filters may require
replacement at intervals that depend on usage. As a general estimate the
butanol fill filter needs to be replaced after every 2000 hours of usage,
while the other two are replaced only as needed. Replacement filters are
supplied in the accessory kit and are available from TSI as maintenance
kits. Refer to the earlier section Replacement Parts Kits.
Butanol Fill and Drain Filters
The butanol fill filter is found in the fill line leading from the butanol fill bottle
to the fill solenoid valve. The butanol drain filter is found in the line between
the reservoir and the drain solenoid valve (Figure 8-2).
1. Read warnings and cautions at the beginning of this chapter.
2. Unplug the instrument and lift off the cover by first removing the cover
screws.
3. Find the filter shown in Figure 8-2.
4. Remove the tubing from the barbed fittings at the back and front of the
filter.
5. Replace the filter with the 73 µm filter (P/N 1602088) found in the
accessory kit. This filter has no preferred direction.
Figure 8-2
Replacing the Butanol Fill and Drain Filters
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