Batsystem 1224 LED Dimmer Installation Guide
- June 6, 2024
- Batsystem
Table of Contents
Batsystem 1224 LED Dimmer
INSTALLATION
While handling the dimmer before installation, take care not to expose it to
static electricity.
There are three connections:
- -0V Supply voltage -0V (battery -), connects directly to the switch board or battery.
- +V Supply voltage 12V/24V DC. Connects through a 8A fuse for
- 12V system and a 4A fuse for 24V system, in the switchboard.
- OUT Connects to one side of the lamps. The other side of the lamps connects to the switchboard fuse, mentioned above.
Avoid connecting the dimmer to the same supply that is used for other equipment, i.e. VHF radio and marine instruments. The CE mark is valid, provided the dimmer is connected directly to the switchboard or the battery, by a separate fuse. The dimmer is suitable only for regulating lightbulbs and halogen lamps. It will not regulate fluorescent light and LED.
The dimmer is intended for installation in boats, caravans and other places where 12V or 24V is available. It will select 12V or 24V mode automatically on powering up.
- Input voltage
12-30V DC 12V DC Max 10mA
Approvals: CE marked. Complies with SS-EN 55015 for installation in boats and caravans.
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USING THE DIMMER
The front panel has two keys only, for light level up and down. There is also a pair of LED’s indi-cating various kinds of information. A brief press on the UP key will start an automatic fade-up to a 100% light level. Similarly, there will be a fadedown to a 0% light level when pressing the DOWN key. Fade-time is a few seconds.
There are four pre-defined levels, in all. If either of the keys are pressed for more than a second then the light level will be manually adjusted for as long as the key is pressed. While fading, there will be stops for approx. 3 sec. at the 25% and 5% light levels. At light levels below approx. 15% the dimmer will cut off to 0% in order to prevent a low current to flow without really generating any light.
A microprocessor is continuously monitoring the supply voltage. Whenever it falls below 10 Volts the dimmer will cut off the light in order to prevent the battery from being completely empty. At low voltage the LED next to the DOWN key will flash. Thin wires can cause voltage drop at high load. The dimmer will then cut off the light or interrupt an ongoing fade-up. Note that the output voltage will never be higher than the actual input voltage.
The dimmer will also cut off when supply voltage is above 16 Volts and the LED next to the Up key will flash. In a 24 Volts system the limits are 20 and 32 Volts. When the load exceeds 100 W there will be a reduction in output voltage down to a low level. Occasionally, this can occur also with loads below 100 W due to large initial current drain in halogen lamps. During short-circuiting both the LED’s will be lit for 10 seconds and the dimmer will cut off the output.
The dimmer makes it possible to apply the light level required at any time, thus reducing the load on the battery. The efficiency of the dimmer is approx 98%. When in idle mode the current drain is negligible: 10 milliamp’s. In case there is a battery charger in the system this can cause flicker-ing light. This is a result of the varying battery voltage that many chargers utilize. Always make sure the battery charger is connected directly to the batteries and not through the fuses panel.
Special note about halogen lamps
A halogen lamp has a very high starting current, up to four times as much as when it is cold. If the dimmer does not successfully turn on the lamps you will need to disconnect one or more lamps.