G. Temperature Sensor
Warning!
The temperature sensor must be installed at the Negative Terminal of the battery terminal, wrong connection to
the Positive Terminal will damage the charger and the sensor. See below Fig.5 for installation.
The temperature sensor is used to optimal charging over wide ambient temperature range.
Fix the temperature sensor in a position on the battery which is not affected by other cooling or heating source. Or you
can insert it into the power cable negative battery clamp (factory pre-mounted)
The reference temperature of this sensor is 25°C and compensation voltage is -20mV/C for SBC-8138 and -40mV/C for
SBC-8238, the higher the battery temperature, the lower the charging voltage. When battery temperature reaches 60°C,
the charger will shutdown, Fault and OTP indicator will light up.
H. Fault Indication
Fault LED (Red)
:
Solid for F1/ 2/ 4
Flashing for F3/ 5/ 6/ 7/ 8
Fault type Protection/ Fault Description
F1
Charger over temperature protection
F2
Output over voltage (tracking)
F3
Overload (OCP), 10% higher than the C.C.
F4
Fan stuck or not working
F5
Faulty battery
F6
Battery temp over 60°C as detected by remote sensor
F7
short circuit > 5 sec shut down otherwise auto-recover
F8
Reverse polarity
Remark: F7 is only for power supply
Fig.5
