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Maintenance
9.3 Battery replacement
The transmitter is delivered with a CR1220 (3V) lithium battery included to safeguard the time
function in the analyzer when not powered up. Should this internal battery malfunction or require
replacement it must be replaced with exactly the same battery type CR1220 (3V) UL Certified
(compulsory VARTA, RENATA or MATSUSHITA).
WARNING
There is a risk of explosion if the replacement battery does not correspond to the correct
model as indicated above. Do not throw away used batteries, but send them to a local
recycling center.
9.4 Fuse replacement
The following illustration shows the position of the fuse, which is located next to the mains
connectors on the power supply board under the shielding plate.
Replacement fuses are supplied with the analyzer and these must be used to replace faulty or
blown fuses. If for any reason these replacements are not available, only the following
alternatives should be used:
• JDYX2, LITEFUSE, type 213, rated 2 AT, 250 VAC
• JDYX2, SIBA, Type 179120, rated 2 AT, 250 VAC
• JDYX2, SCHURTER, Type FST, rated 2 AT, 250 VAC
If there is any difficulty in obtaining these replacement fuses, please contact your local Hach
Lange representative for advice and assistance.
Figure 17 Fuse location
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