Fluke DTX-1800, Technical Reference Handbook

Page: 333 / 398

Maintenance and Specifications
Maintenance
14-7
14
To retrain the battery gauge:
1 Connect the main and remote testers together using a
permanent link adapter and a channel adapter, two
channel adapters or two coaxial adapters and a patch
cord, or two fiber modules and a test reference cord.
2 Connect the ac adapters to the main and remote
testers. Turn on both testers.
3 Turn the rotary switch to SPECIAL FUNCTIONS; then
select Battery Status. Verify that both the main and
remote battery gauges are shown. If the remote gauge
is missing, check the connections between the two
units.
4 Press
J
Train Battery.
5 To abort the retraining, hold down the power key (
M
)
on the main and remote testers until they turn off.
Retraining is complete when the testers have turned off
and the LED by the ac adapter connection is green.
Replacing the Battery Pack
Replace the lithium ion battery pack when its life becomes
noticeably shorter or when it fails to reach full charge. The
battery is normally good for up to 400 charge/discharge
cycles.
/
Note
Dispose of the lithium ion battery pack in
accordance with local regulations.
Replacing the Internal Battery
An internal lithium battery maintains the tester’s clock,
when you remove the battery pack. This battery typically
lasts about 5 years. When the battery begins to fail, the
tester will lose the current date and time when you remove
the battery pack. If the internal lithium battery fails, send
the tester to a Fluke Networks service center for a
replacement.
Fiber and OTDR Module Maintenance
The following sections apply to the optional DTX-MFM2,
DTX-GFM2, and DTX-SFM2 fiber modules and the
DTX Compact OTDR modules.
Optical Connector and Adapter Care
Periodically clean and inspect the module’s optical
connectors as described on pages 7-9 for the OTDR module
and 8-9 for the fiber modules.