Reset Criteria; Battery Lifetime / Maintenance; Low Battery Warning; Low Battery Warning Reset - Nortroll LineTroll 110Em User Manual

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2.4. Reset criteria

The indicator automatically resets in two
different ways:
1) When the line is energised. The voltage
or current sensor detects that the line is
energised and can in turn reset the
indicator after 30 seconds of
continuously energised line
2) Automatic reset by internal timer.
This timer can be set to:
2, 6, 12 or 24 hours
The indicator can also be reset manually at
any time by use of a magnet, or by use of
the mounting and testing tool KBN-3.

2.5. Battery lifetime / maintenance

A 3,6V 16,5 Ah Lithium battery powers
the indicator. When idle, the 110Eµ
consumption is a few micro-Amps only,
giving some 9-10 years battery lifetime in
normal service. The 110Eµr approx. 5
years due to the additional power
consumption for the radio.
When the unit is activated, approximately
4 mA are consumed, giving more than
1500 hours of flashing capacity. The
battery is fitted with a connector for simple
replacement.
Figure 3: Initial battery capacity.
LINETROLL 110E /110Eµr User Guide February 2010
Figure 4: Remaining battery capacity as a
function of years and temperature

2.6. Low battery warning

During the last few months of the battery's
life, an amber LED with a low flashing
frequency will indicate that less than 20%
of capacity remains and that there is a need
for battery replacement.
The 110Eµr will in addition send a
message "Low battery" to the Collector.

2.7. Low battery warning reset

In the case of battery replacement the
battery capacity monitoring must be reset.
See Ch 5.2.

2.8. Fault sensitivity

The indicator's di/dt sensitivity is limited
by the load current.
See table in Ch. 7. TECHNICAL
SPECIFICATIONS.
The indicator detects short-circuit- as well
as earth-faults provided the di/dt current
change exceeds the detection level or
absolute threshold level dependent on
programming.
Page 5 of 16

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