Owner's manual

DC0091A November 2001 1/3
This information applies only to the
FTB-100 mini-OTDR and FTB-100B Mini-OTDR.
Battery Maintenance Recommendations
➤ To extend the life of the 9 V clock battery, do not leave the main battery
in the unit when it is discharged.
➤ EXFO highly recommends removing the NiMH main battery and 9 V
clock battery if the unit will not be used for more than two weeks.
➤ EXFO recommends leaving the FTB-100/FTB-100B plugged in when
not in use.
➤ Replace the 9 V clock battery every 6 months to avoid having to
recalibrate the touchscreen.
➤ Change the Ni-MH main battery after 300 cycles (approximately
18 months of use) otherwise the unit operating time might be reduced
by as much as 50 %.
➤ If the NiMH main battery is not used for a long period of time (i.e. over
three months), it will not be damaged, but might need to be recharged.
In the worst case scenario, the battery will require a complete
recalibration; i.e. a full discharge, immediately followed by a full
charge, then followed by a full discharge.
IMPORTANT NOTICE
Please make sure to fully charge the battery prior to using the
instrument for the first time.