OTT Hydrolab DS5, User Manual

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Maintenance
Figure 14 Dryer Maintenance
6.1.3 FreshFlow™ Miniature Sample Circulator Maintenance
1.
If the circulator is clogged with twigs or other small debris, clean the impeller with
some tap water using a soft bristle brush. Use a pair of plastic tweezers to help
remove debris. Rinse with tap water.
2.
If there is excessive build-up on the impeller, remove the retaining screw to clean the
build-up. After cleaning the impeller, and before inserting the retaining screw, apply a
very small amount of Loctite™ 242 threadlock (or equivalent) on the tip of the screw.
Do not overtighten.
6.2 Battery Replacement
If the multiprobe is equipped with an internal battery pack, the following batteries are
customer-replaceable. The Sondes are also equipped with a customer-replaceable
Lithium clock battery.
•
8 size C alkaline batteries for the DS5 and DS5X
•
8 size AA alkaline batteries for the MS5
Important Note: To keep internal components dry, avoid replacing batteries near a
water source.
Important Note: If water leaks into the multiprobe battery compartment, remove the
batteries, pour the water out, and thoroughly dry the compartment with a towel.
6.2.1 DS5 and DS5X Battery Replacement
DANGER
If the thumbscrew is difficult to remove, there may be pressure built up inside the
housing. To avoid serious injury, use extreme caution when loosening the battery
cap thumbscrew.
DANGER
Batteries must be installed in the correct orientation or serious injury and
instrument damage may occur. Do not mix depleted and fresh batteries together or
serious injury and instrument damage may occur.
1.
Dryer Nuts (2)
3.
Desiccate Packet
2.
Dryer Cap
4.
Gore-tex Patch
1
2
3
4