Battery-Monitor BLS
REV 1A – APR 2019 - Software Version 1A page 17
During charging, the estimated charging time is displayed until the batteries are about 95% charged.
The maximum value during a discharge process is 99.9 hours (> 4 days). The remaining time is
automatically corrected taking into account the Peukert function.
5.2.4 Calculation of the current state of charge
During charging, the Ah efficiency of the battery (C.E.F.) is automatically taken into account in the
capacity calculation. The charge current with the C.E.F. Value (in%).
6. Tips and tricks
a) a) If the message "not synchronized" despite 100% full charge (U> 14,0V and I <2% of the
rated capacity) of the battery does not go out, this can be achieved manually by changing
the nominal battery capacity by 1 Ah.
Please check if every charging source is recognized correctly. Charging currents are
always positive when all consumers are switched off at the same time.
b) Full battery detection does not work. Please check the charging voltage of your battery
charger / solar system and set the battery type to NASS to work with the lowest possible
values.
Please check whether each charging source is recognized correctly. Charging currents are
always positive if all consumers are switched off at the same time. This must be checked
individually for each charging source. At the negative pole of the battery only the shunt
with the B-connection must be connected, nothing else!!
7. Software Update
To update the monitors software, a micro SD card is required. After receiving the software, the file
must be copied to the previously empty micro SD card (without folder, top level).
To update, insert the SD card into the SD card slot on the back of the monitor and disconnect the
power supply from the battery monitor. Then the power is turned on and the screen shows that new
software has been detected and installed automatically. During the update process the progress is
displayed. If the monitor starts normally after inserting the SD card, no SD card has been detected
or the software is up-to-date.
8. Technical data
Supply voltage DC 8-32 V
Current consumption monitor 80 mA at max. Display brightness, 6 mA in sleep mode
Current consumption shunt 20 mA, 2 mA in sleep mode
Shunt 0.1 m Ω
Measuring range U1 0-35V, resolution 30mV, accuracy 0.25%
Measuring range U2 0-35V, resolution 30mV, accuracy 0.25%
Current carrying capacity Shunt 300A, 600A 1 min, 1500A 0.5 s
Current carrying capacity relay 1A
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