The SMD-100 is an electronic control module used to switch HID lamps from high to low mode and back to high mode. Signals are received from a control device (occupancy sensors, time switches, light levels, controller, etc.) immediately activating the relay to switch to low mode or high mode. Themodule is multi-voltage and multi-wattage (depending on the capacitor used inside the fixture) due to the innovative no load switching circuitry. No presetting is required between 120V & 480V or 250W through 1000W High Pressure Sodium or Metal Halide. A fifteen minute timer built into the module prevents the fixture from switching to the low mode until the lamp has been fully energized. Thefixture will remain in the high mode if the space is occupied and switch to the low mode when unoccupied. The savings in energy are significant. The principle is to allow the lighting fixture to operate in the low mode (about 50% reduction in power) until the area is in actual use. The best applications are large distribution centers, warehouses, outdoor service areas and buildings that rely on a combination of natural light and HID lighting.
Energy Savings
Enormous cost savings in both energy and system maintenance are achieved by operating the fixtures at 40-50% of full power and light output with the ability to switch instantly to full light when needed through the use of motion sensors, timing devices, light level monitors and computer controls.
Wiring
The SMD-100 module is factory installed on any 250W - 1000W MH or HPS High Bay or Low Bay fixture. Installation is simple and fast using a 2 pair twisted low voltage wire. All signals are generated at 24V DC and therefore require no special cabling. The module can be linked to operate in conjunction with as many fixtures as required there is no limit. Alternately the fixtures can operate individually using a module and sensor on each fixture, (see wiring diagram).
Ballasts
The SMD100 High-2-Low system will only operate with a CWA type MH or HPS ballast. Supply voltages of 120 - 480V require no presetting.
Specifications
For indoor use only
For use with CWA (Constant Wattage Autotransformer) ballast only
Lamps: HPS, MH, Pulse Start MH
Load ratings
Metal Halide 250W-1000W Pulse Start Metal Halide 250W-450W High Pressure Sodium
250W-1000W
Relay rating: 15A @ 24V DC (zero crossing high to low and low to high)
Current Consumption: 18mA max
Total Current Output: 15A @ 24V DC
Maintained signal voltage to trigger (low to high): 12 micro-amps
Lamp warm up upon power up: 15 minutes
Operating Temperature Range: -10º to 104º F (-23º to 40º C)
Operating Humidity Range: 0% to 95% relative, non-condensing
Weight: <1lb
Dimensions:1.8"H x 3.8"W x 4.6"L (45.7 x 96.5 x 116.8mm)
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