GSL SR 1212 Operation Manual
Page 1 of 4
Model:
SR 1212
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
12Volt 12Amp
Solar Regulator
Operating Instructions
Please read these instructions before use
SR12-R1
Operation Guide
Thank You for purchasing another quality GSL Product.
The SR 1212 is a Negative Switched PWM Solar Panel Regulator which is feature rich and powerful for it’s size due to it’s
microcontroller based design with the added bonus of polymer encapsulation making it water and weather proof.
Featuring:
• Operating from panels that are peak rated to 250W
• Very high efficiency, typically over 98%
• Low night time discharge current, below 10mA.
• Selectable multichemistry. For Sealed Lead Acid , Flooded Cell Lead Acid and Lithium (LiFePO4) chemistries. (Note: This
feature is only available on SR1212-2 only. The SR1212-1 fixed for Flooded Cell Lead Acid)
• Simple Status LED Indication (SR1212-2 model only)
• High operating temperatures - Safely work up to 70°C.
• High reliablity due to dual over temperature protection.
• Built in Low Voltage Disconnect (LVD) (SR1212-2 model only)
• Advanced 3 stage automatic PWM charging algorithm
SR 1212
Note: Coin for size
reference only.
Page 2 of 4
Model:
SR 1212
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
12Volt 12Amp
Solar Regulator
Operating Instructions
Please read these instructions before use
SR12-R1
Operational Parameters
SR1212-1 SR1212-2
Maximum Current at Bulk Charge 12A 12A
Input Operating Voltage Range 15V to 25Volts 15V to 25Volts
Maximum Charge Voltage for Flooded Cell (LEAD
ACID)
14.6Volts 14.6Volts
Maximum Charge Voltage for Lithium - 14.4Volts
Maximum Charge Voltage for AGM/GEL - 14.2Volts
Float Voltage 13.5Volts 13.5Volts
Lithium Maintenance Charge - 13.2V
Standby Current 0.01A 0.01A
Maximum Operating Temperature 70°C 70°C
Automatic Derating Above 45°C 0.5A/°C 0.5A/°C
Typical Efciency 98% 98%
LVD On/Off - On : <11V OFF : <12.5V
Status LED - YES
Dimensions 81mm(L) x 37mm(W) x 22mm(H) 81mm(L) x 37mm(W) x 22mm(H)
Weight 50g 70g
• Use only PV systems with open circuit voltage below 25v and 250W rated peak power.
• Install the unit away from ammable liquids or gases.
• Use wires suitable for at least 15A, but if wire runs are over 3m then larger wires are recommended to limit voltage
drop and losses.
• A battery fuse ( BF ) is always required and must be located as close as possible to the positive battery terminal and
before any other connection. The fuse ratings will depend on the wire size and load but typically a 15A fuse
is envisaged.
• Before connecting always check battery and PV panel polarity & Do not short PV or Load with Battery connected!
• Always check that the correct chemistry setting is used and that the voltage levels are suitable for your specic
battery.
• Only use Lithium batteries with a suitable BMS.
• This appliance is not meant for use by young children.
• During the charging process on a vented battery do not use a naked ame near a battery which may ignite and explode.
• Never smoke or light cigarettes near a battery.
• Do not place tools on top of battery or allow tools to fall on to the battery.
• Always wear eye protection near a charging battery.
• Ensure a “well” ventilated area is used when testing or charging batteries.
• Ensure ventilation is adequate and venting holes are not obstructed.
• If skin or clothing comes into contact with acid, ush the area(s) with water immediately and seek medical attention if
necessary.
Important installation and safety notes
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