Vaisala AWS330 - Manual (Page 174)

User's Guide ______________________________________________________________________
172 _________________________________________________________________ M211296EN-B
Inside Enclosure Maintenance
Checking Battery
Battery status should be checked every 3 months. This is done either
using a multimeter on the batteries' plus and minus terminals or by
checking the status LED on the QBR101C battery regulator.
1. Disconnect AC (mains) power supply or external DC.
2. Press the QBR101C test button to see the battery status:
- If the LED is green, the battery is OK.
- If the LED is yellow, the battery voltage is low (level <11.5 V).
- If the LED is red, the battery is empty (level <10 V).
3. Charge the battery for a while. Then, repeat the procedure from
step 1.
If the battery status LED is red even after repeating the charging
procedure for a longer period of time, the battery is old and needs to be
replaced. The lead-acid battery may age in 3 to 5 years and needs to be
replaced with a new one.
NOTE When the status LED turns red, QBR101C disconnects the load at
DCout/Sw terminal, thus shutting down the system. This is to protect the
batteries from deep discharging.
Pressure Sensor BARO-1
Periodic Maintenance
Under normal operating conditions, BARO-1 needs only a minimal
amount of maintenance.
- Keep the pressure port clean. Check the pressure port every time when
visiting the site.
- Annually, compare pressure values against a calibrated portable
standard.