Battery/Tank Monitor BTM2
REV 1A - FEB 2022 - Software Version 1.xPage 16
Battery capacity alarms
A message appears on the monitor to charge the battery (battery appears red) if the battery falls
below the set capacity threshold.
The alarm for the alarm capacity is preset to 50%. For an average application, this value is usually
fine; however, the alarm can be adjusted according to the application's requirements.
If the state of charge drops further, 2 different thresholds take effect: Battery reserve (20%) and
battery deep discharge (0%). An alarm is triggered here depending on the configuration.
Battery voltage alarms
If there is a voltage >1V at the shunt on the terminal (+2) for the 2nd battery voltage, this is
reported as another battery. If the battery voltage drops or exceeds the set threshold value
for
30
s, an alarm can be generated.
The following settings are possible in the alarm menu:
-
Visual alarmLighting flickers (on / off)
-
Alarm auto off0-255
sec
(Attention 0 = always on)
-
Relay auto off
0-255 sec
(Attention 0 = always on)
The potential-free relay and the buzzer can be configured for individual alarms. Depending on the
configuration, the alarm switches on for the following alarm states and remains on until all
pending alarms have been cancelled. If an alarm has been acknowledged and a new alarm is
added, the buzzer is activated again.
Battery 1Capacity alarm
Adjustable (10 - 80 %)
Battery Empty (20%)
determined by battery management
Battery deep discharge (0%)
determined by battery management
Overvoltage adjustable
(14 - 32 V)
(Over)-temperature
adjustable (40 - 60 °C)
Battery 2Undervoltage
adjustable (9-24V)
Overvoltage
adjustable (14-32V)
Battery 3Undervoltage
adjustable (9-24V)
Overvoltage
adjustable (14-32V)
The voltage alarms must be adjusted for 24V batteries!
Tank
Tank 1 Level
adjustable, empty or full alarm
Tank 2 Level adjustable
, empty or full alarm
Tank 3 Level
adjustable, empty or full alarm
Tank 4 Level adjustable
, empty or full alarm
