This dimmer is designed to operate LED and incandescent lighting operated on 12-14VDC. It has an integral on/off switch for control of output loads using Pulse-Wave Modulation (PWM) to provide precise dimming.
To
install, use the screw terminals to attach input and output wires (shaft is
1/4"). Always place a properly
rated fuse between the dimmer and power source.
Take care to ensure the dimmer does not contact surrounding metal
structure or other wiring. Under heavy
load, ensure the dimmer heat sink has adequate ventilation to prevent
overheating.
Mode of Operation - Continuously variable, pulse width modulation (PWM). 100hz operating frequency
Supply Voltage—8 to 20VDC working voltage, Up to 30VDC momentary. When input voltage is
larger than 16VDC, output will be turned off.
Output voltage will turn off.
When the input voltage is less than 16 VDC, the dimmer will reset to
normal work.
Output
Voltage Range
- From zero VDC to supply voltage
Output
Current Range
- Up to 7.0A per channel
Max
Continuous Output Current - Full rated current up to 105 F (40C), 75% of rated current
up to 115F (46C)
Ambient
Temp Range
- minus 40F (-40C) to 115F (46C), with restrictions as noted
DC-DC
Conversion Efficiency
- About 98% at full rated current, higher at lower current
Load
Types -
Optimized for resistive loads
Reverse
Battery Protection
- If
input leads are reversed, the dimmer will not work. When the input leads are
correctly connected, the dimmer will reset to normal work. Always use an external fuse to protect the
dimmer and load.
Forward
Transient Protection
- Double resistive/capacitive filtering, zener diode clamping.
MCU will detect
over voltage and over-current within less than 0.1 seconds
Voltage
Drift -
Nil
Size – 1.25" x 1.6"
inch square
Weight - About 50 gm, depending
on wired connection type
Load
Regulation
- Generally less than 3% from minimum load to maximum load at all settings
Line
Regulation
- Directly proportional to supply voltage
Power
Dissipation of Drive Circuitry - Less than 0.1W. No load current draw is about 2mA.
The dimmer is controlled by MCU. Provided with
voltage regulation. When the dimmer is turned off, the power is not cut off
completely. The power dissipation is
still Less than 0.1W
Current
Limiting -
If light source current exceeds protected maximum of 7A per channel, the dimmer
will stop functioning. To reset, remove
input voltage momentarily. Be sure to
fix the cause of overload before resetting.
Accessories - Knobs, instructions and
labeled input/output