Temperature sensor for BlueSolar PWM-Pro - SCC940100100

What is the role of the temperature sensor in the controller operation?

It allows the controller to adjust the charging parameters in real time, relying on the temperature of the lead plates. This protects the batteries from overcharging in summer and undercharging in winter.

Which devices is this model suitable for?
The SCC940100100 sensor was developed specifically and exclusively for Victron BlueSolar PWM-Pro series solar controllers.

Will it work with MPPT or PWM-LCD models?
No, these lines of controllers do not have hardware support for this temperature sensor.

Is this sensor included in the box with the controller when purchased?
No, this accessory is optional and is purchased separately by the user.

Is the cord length sufficient?
The wire length is about 1.5 meters — this is more than enough for typical installations where the controller hangs next to the battery.

Where exactly should it be fixed?
The best place is directly on the battery wall. The tighter the contact with the battery, the more accurate the charge compensation.

Will I have to mess around with controller settings?
No configuration is required. As soon as you plug in the sensor connector, the microprocessor itself activates the temperature compensation function.

How exactly does the voltage change when the climate changes?
For every 1°C of temperature change, the system makes a correction of 30 millivolts (for 12-volt banks): in freezing weather, the voltage increases, in the heat, it decreases.

What happens if the sensor is connected, but the battery is not connected to the controller?
The logic of the controller is designed in such a way that without a reference voltage from the battery, temperature compensation does not function.

Can I cut off the plug and solder a sensor from another company?
Highly unrecommended. The original SCC940100100 sensor uses a thermistor with a specific resistance curve; another brand's sensor will lead to incorrect calculations and battery damage.