natus Xltek EMU40EX, Руководство пользователя

Страница: 8 / 14

Xltek EMU40EX Battery Pack User Manual
8
USING THE EMU40EX HEADBOX WITH THE BATTERY
PACK
•
Connect Battery Pack (Fig.1) to EMU40EX Breakout Box using EMU40EX power cable (Fig.4).
•
Green light
(“Battery”) will keep flashing as long as the battery is at least 20% full.
•
When the Battery Pack is discharged to less than 20% of its capacity, flashing light “Battery” changes
its color to
RED . This is a warning for you to complete the study or to change the power source in less
than 1 hour.
•
Even after the Battery Pack is discharged and all lights are off, there may still be some power available
stored in the internal battery of the EMU40EX Breakout Box.
USEFUL TIPS
•
In order to check condition of the battery simply connect the EMU40EX Power Cable (Fig.4). There is
no need to connect the headbox for this check. Three cases are possible:
1. “Battery” LED is off
the battery is completely discharged.
2. “Battery” LED is flashing GREEN the battery is more than 20% full.
3. “Battery” LED is flashing RED
the battery is less than 20% full.
•
Please do not leave EMU40EX Power Cable (Fig.4) plugged if you do not intend to use the Battery
Pack for a long time. When the EMU40EX Power Cable is unplugged, the Battery Pack automatically
enters low-power standby mode prolonging battery life.
•
All lithium batteries are “perishable products”. Their life expectancy is limited to 500 charge-discharge
cycles or 5 years due to chemical degradation of active electrodes. You may see very slow degradation
of the lithium cell performance even if it is not used.
•
Lithium battery will last much longer when using more shallow charge-discharge cycles rather than
full-charge
— full-discharge cycles.
Battery life in charge-discharge cycles is specified for the latter
(worst) case. Use fresh or fully charged batteries before beginning a study.
•
If you are not going to use Battery Pack for a few weeks or longer, please pre-charge it approximately
to 50~75%. This is optimal for long-term storage. Do not store a totally discharged battery as this may
render the battery pack inoperable.
•
Do not continuously leave the battery pack charging. Overcharged cell leads to faster electrode
degradation.
•
If you need longer continuous operation two (or more) batteries can be used to prolong disconnected
operation of EMU40EX headbox. This is limited by the memory storage capacity of the EMU40EX
headbox.