24V 25A Sterling Digital Charger

Description

24V 25A Sterling Digital Charger

Digital software control

There are 2 ways to control electronic processing, Analogue (hardware control) and Digital (soft ware control). Hardware control is where the voltage sensing and processing are all done via transistors and electronic hardware. This is fine as long as the information to be processed is kept simple. However an Advanced Regulator may look simple (and most of them are) but when all the different battery types, bank sizes, and safety parameters are installed, the unit would become almost impossible to make and set up. Sterling leads the field in this type of controller but has found that when upgrading from our previous model that it required so many extra features to keep up with new battery types and alternator types etc that it made a hard ware version impossible to make.

Digital control (software): This uses computer lines of code, digitally burned into a memory processor in the Advanced Regulator. This means that very complex information and mathematical processes can be processed, which would be impossible for the hardware system to do. It is the next generation of control, and more and more you will see the term digital control appearing on different products. Digital control offers so many extra features at no extra cost (see below) and accuracy beyond the ability of the analogue version.

Features:

• 3 isolated outputs: The charger has 3 outputs enabling 3 different battery banks to be monitored and charged at the same time.
• Automatic 110/230 volt selector: The in built system enables the charger to be automatically used on a wide voltage range from 80-300 volts A/C. This covers all the possibilities encountered on any marine in the world.
• Multiple input frequencies from 40-400 Hz: Self-explanatory, the unit is able to work on all worldwide A/C input frequencies.
• Thermostatically controlled fan cooling: The digital software monitors the unit temperature and controls the fans; this reduces any unnecessary fan noise from the charger and prolongs the fans life for many years.
• High ambient temperature rated: Many boat builders expect the chargers to work at full power continuously at 40 deg ambient, few chargers in the world meet this specification – we do.
• 3 battery type charging curve selector: There is more than one battery type; most chargers do not offer different programs for different battery types. Failure to offer an option will result in either overcharging some battery types and sulphating others. The Sterling offers charging curves for open lead acid batteries, traction batteries, sealed batteries, gel batteries and A.G.M batteries.
• Automatic battery bank size and state: No need to program in the battery bank size as the digital software can work that out itself.

Specifications:

• Input voltage: 90-125V / 185-260V
• Input frequency: 40-400Hz
• 3 stage RFI filter
• Thermostatically controlled fan cooling
• 100% output power at 40°C ambient temperature
• 24kt. gold plated output terminal posts
• Power pack mode
• Battery type selector: open lead acid / gel / agm
• Automatic battery bank size and state sensing
• Automatic equalizing time calculation
• Automatic 7 day de-sulphation cycle
• Charge indication LEDs (7)
• Battery temperature sensor inc.
• Battery temperature compensation
• Auto power reduction in event of high temp.
• High battery voltage trip
• High battery temp. trip
• Negativ fused externally
• Reverse polarity protected
• Remote control socket
• AC input totally isolated to DC output
• Short circuit, shock, overload protected
• Sturdy construction
• Small footprint, low profile
• Ideal for use on 38-55ft boats.
• Size: 340x160x60mm
• Weight: 3.3kg