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Ambient Light Dimming Ballast Controller EDS

Ambient Light Dimming Ballast Controller


The PLC-Multipoint EDS is a class 2, adjustable, photodiode based, indoor dimming controller used to dim up to fifty 0-10 VDC fluorescent dimming ballasts. The device is connected across the control wires of the ballasts, and receives its power from the 10 VDC provided by the ballasts. When used together, the EDS sensor will provide a maximum limit, or cap to the high end of light output based on ambient light monitored.


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  • Compatible with T8 and T5 Electronic Dimming Ballast
  • Measuring range of 0-140fc
  • NIST traceable factory calibration
  • Output 0-10V sinking
  • Adjustable response time
  • Indoor sensor is adhesive ceiling mountable
  • UL 916 Listed
  • Compliant with California Title 24

Supply Voltage:10 VDC (supplied by dimming ballast)


 :Sink up to 25 mA

Analog Output:0 to 10 VDC Sinking to ballast

 :Compatible with T8 and T5 Electronic Dimming Ballast

Output Impedance :Up to 50 dimming ballasts

Sensor type:Blue-enhanced photo-diode


 :Overall ±1% at 70°F (21°C)

 :Temperature 1%, ±10%

 :Linearity ±0.5%

 :Repeatability ±12%

Range Adjust:Setpoint range from 10 to 140 fc

 :Control type Reverse Acting

 :Setpoint Adjust 25 turn POT

Response Time Adjust:Standard- 20 seconds

 :10 seconds if WHT-GRN wire is cut

Protective Lens:Clear Fresnel lens, 60° angle

Operating Temperature:-13° to 140°F (-25° to 60°C)

Operating Humidity:10% to 95% Non-condensing

Wiring Terminations:4, 18 AWG Pigtails


 :Signal Out Violet (input PWR), Grey (Sinking signal)

 :Sensitivity Adj. WHT to GRN= 20sec, Wht cut GRN= 10 sec

Mounting:Smooth back for ceiling down mounting w/double stick tape

 :Note: Do not face the lamps under control

Enclosure Rating:NEMA 1, Indoor

Dimensions:1.23" H x 2" Dia. (3.12 x 5.08 cm), Lens = 1.29" Dia. (3.28 cm)

Approvals:NEC Class 2, California Title 24, RoHS, UL916

Warranty:2 years