MODEL 2810E-2001 USER MANUAL
2810E-2001 UM
REV 3.0
12
4.
OPERATION
The 2810E-2001 is a panel mounted chamber communication system designed to provide reliable
voice communications between the chamber operator and occupants..
CHARGING THE BATTERY
4.1
The Model 2810E-2001 is supplied with an internal sealed lead acid battery. To charge the
battery, connect the AC power cord located on the back panel to an AC outlet. The internal
battery charger is able to operate on 115 and 230 VAC lines without the user having to make
any adjustments.
The 2810E-2001 internal battery charger is designed to charge the battery in float mode so
the charger can be left on indefinitely, without damage, to ensure the battery is fully charged
and the unit is ready to use. A fully discharged battery will take approximately 10 hours to
reach full charge (depending of the age of the battery and the surrounding temperature). To
ensure maximum service life, the battery should be fully charged at least once every six
months.
The operating time for a fully charged battery is approximately 85 hours. The exact
operating time depends on the age of the battery and the ambient temperature. The sealed
lead acid battery used in the 2810E-2001 has a service life of 300 full charge/discharge
cycles or 3 years. The BATTERY CONDITION INDICATOR will start to blink when the
battery has approximately 30% remaining charge. To maximize the service life, the battery
should be recharged as soon as possible after the indicator starts to blink. When the battery
reaches the full discharge state, the 2810E-2001 will shut down to prevent damage to both
the battery and the electronics.
INITIAL POWER ON - BATTERY CONDITION CHECK
4.2
Turn all the volume controls to minimum and turn on the POWER SWITCH. The state of the
battery is shown on the BATTERY CONDITION INDICATOR as follows:
•
STEADY GREEN - the battery is good and has more than 30% remaining life
•
BLINKING GREEN - the battery is low and has less than 30% remaining life
The BLINKING GREEN light provides a warning that the battery is low and should be
changed or recharged before starting chamber operations. When the indicator starts
BLINKING GREEN during operation, it means that there is, depending on age of the battery
and the ambient temperature, approximately 24 hours of remaining life. This should be
sufficient time to safely complete chamber operations or to connect the 2810E-2001 to an
AC power source. A battery that has not been used for a long period of time will exhibit a
higher voltage than the actual charge state. This is known as surface charge and will quickly
dissipate once the unit is turned on. It is recommended that the unit be left on for 5 minutes
before relying on the BATTERY CONDITION INDICATOR.