Reya DOLPHIN PRO 24V40A Notice Technique page 25

OPERATION
NOT-DOLPROREYA-03
BATTERY TEMPERATURE SENSOR
The temperature sensor allows the charging
voltage to be adjusted depending on the
battery temperature.
It therefore allows the usable life of batteries to
be increased, mainly in the event that the
ambient temperature in the battery area is
high.
This sensor is screwed onto the main battery's
positive terminal (a service battery as a general
rule). The 2 wires are connected to the "TEMP SEN-
SOR" connector on the charger board (in no par-
ticular direction).
The compensation level is around
+/-25mV per °C for a 24V battery and between
+/-12mV per °C for a 12V battery (see curves
below).
The resistor connected initially simulates a temperature of 25°C.
The action of the battery temperature sensor allows the charge
to be adjusted, upwards or downwards, depending on the battery
temperature, i.e.:
+/- 15 mV per °C at 12 V
+/- 30 mV per °C at 24 V
Reference voltage
Battery temperature in °C
OPERATION
NOT-DOLPROREYA-03
LED DISPLAY
The PRO charger is equipped with a local
multifunction LED display, which, among other
things, shows the details of the key stages of the
battery charging process.
BOOST phase : the battery is in its recharging
phase, reaching a level of charge of close to 80%.
This recharging phase is limited to a period of
6 hours.
ABSORPTION phase : The voltage is maintained
and the amperage is reduced until the battery
returns to a level of charge approaching 100%.
This phase is limited to a period of between 30
minutes and 4 hours, depending on the battery's
initial charge level.
FLOAT phase : the voltage and the amperage
are reduced to maintain the battery. During the
Floating phase the charger only delivers what the
battery strictly needs.
In other respects, the key faults (temperature,
fuse, voltage, etc.) are also taken into account
and shown by the LED display.
Screen
UK