Pentair HAFFMANS RPU-352, Instruction Manual, Page: 17 / 112

HAFFMANS RPU 352, RPU 353, RPC 80 RPC 50
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RPU 352, RPU 353, RPC 80, RPC 50 Page 17 of 112
4.8 LOW BATTERY CONDITION
If recording is taking place when the battery charge level falls below 15%
then recording will stop and the file will be saved. This ensures that
recordings cannot be corrupted by low battery condition. The results
screen will show the reason for stopping.
If there is less than 15% charge in the battery then the backlight cannot be
switched on. This helps to ensure that the battery lasts for as long as
possible. The backlight increases the battery drain by about four times.
At an even lower level of charge (below 5%) the whole instrument will turn
off. Any recorded files will be saved. If you switch the instrument on again
in this state it will stay on for only a few seconds. Connect the instrument
to a Redpost battery charger as soon as possible.
The instrument continuously monitors its own battery use and battery
charging to gauge the amount of charge that remains in the battery. If the
battery voltage falls to a low level unexpectedly it may indicate that the
battery is not correctly holding its charge. This can happen after several
years of use. If this problem occurs the display will warn you that the
battery may need to be replaced. More information can be found in the
“Maintenance” section.