laerdal Suction Unit, Руководство пользователя

Страница: 17 / 28

17
5.4 Charge the Battery
The internal rechargeable battery can be charged directly from external
AC- or DC-power as described in section 3.4. No external charger is needed.
To charge the battery, proceed as follows:
1. Make sure the Operating Knob is set to “0”. Connect either
external AC- or DC-power to the LSU and charging will
start automatically.
2. During charging the Battery Status Indicator will indicate
approx. achieved battery capacity (see section 3.2.2.5
for details).
3. The LSU must be placed on charge for a minimum of
4 hours to reach full battery capacity. The fast charging
gives approx. 80% capacity after 3 hours (for a new battery).
Repetitive charging for only 3 hours is not recommended.
Note:
- To maintain satisfactory operation of the battery, it is recommended to place
the LSU on continuous charge immediately after use.
- It is recommended to always fully charge the battery. Repetitive charging to
a lower capacity level will reduce battery life.
- If it is not possible to place the LSU on continuous charge when not in use,
make sure the battery is charged for a minimum of 4 hours at least once
a month.
- Do not store the battery when it is discharged. Always fully charge the battery
before storage.
- The recommended ambient temperature for charging is from 15 °C to 25 °C
(59 °F to 77 °F ).
- The battery will not be charged when the LSU is in operation.
- If no battery is installed, the battery status indicator will be fully lit for approx.
5 sec. until it is automatically turned off.
5.5 Check the Battery Quality
If poor battery quality is suspected, charge the battery for a minimum
of 4 hours and then perform the following test without connection to
external power:
- Run the Device Test and then let the LSU operate continuously at
500+ mmHg/free flow for 20 minutes.
- If the LSU stops before completing the 20 minutes, the battery should be
discarded.