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LM Series
LM Series
Lightmaster Control System
The LightMaster Series is a control system that operates on ambient
light level sensing. LightMaster is an affordable alternative to expensive
or unreliable lighting controls. It is a cost effective solution for providing
additional light level control beyond the typical timer or photo control. It
can be added to an existing timer. LightMaster offers true dusk-to-dawn
operation and can achieve additional energy savings by adjusting light
levels throughout the day or night. Additionally, it offers an affordable
solution for daylight harvesting. The LightMaster features a delay
setting to avoid nuisance ON/OFF switching of lighting during
intermittent environmental changes, such as clouds, lightning, or
headlights. The LightMaster is essential where activities are impacted
by changing and inadequate light levels throughout the day. It will turn
lighting ON during inclement weather and OFF when normal light levels
resume. The LightMaster is more reliable than photo controls and can
save maintenance costs over time.
Features
• Available in 1 or 2 channel control units
• 1 light level setpoint per channel
• Available in UL Type 3R Raintight, outdoor enclosure
• Adjustable dial for setting foot candle levels
• 0 to 100 second delay adjustment to avoid nuisance switching from
clouds, headlamps, or lightning
• Up to 10 control units (20 Channels) can be connected to one sensor
• Light level sensor can be mounted up to 330 feet away from control
unit
• Sensors are non-arcing low voltage
Ratings
Enclosure Size: 8.8" (22.0 cm) H x 6.6" (16.5 cm) W x
2.9" (7.3 cm) D
Input Voltage: 120 V; 50/60 Hz
Operating Temperature:
Control: -4°F to 131°F (-20°C to 55°C)
Sensor: -22°F to 158°F (-30°C to 70°C)
Switch Configuration:
Resistive Rating: 10 Amp, 277 VAC per channel
Ballast Rating: 8 Amp, 277 VAC per channel
Output Relay: SPDT dry contacts per channel
Sensor Time Delay: 0 to 100 seconds
Time Switch Accuracy: ± 2.5 seconds per day @ 68ºF (20ºC)
Humidity Range:
Control: 0 to 95% RH non-condensing
Sensor: 0 to 100% RH
Shipping Weight: See table on back
LM2-O-120
LightMaster Control System
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