DLC-PDC
PHOTODIODE CONTROLLER
INSTALLATION AND OPERATION INSTRUCTIONS
1121 Highway 74 South Peachtree City, GA30269
Customer Service:
Telephone: (800) 553-3879 Fax: (800) 954-7016
DLC-PDC Rev. 2
Page 1: ...DLC PDC PHOTODIODE CONTROLLER INSTALLATION AND OPERATION INSTRUCTIONS 1121 Highway 74 South Peachtree City GA30269 Customer Service Telephone 800 553 3879 Fax 800 954 7016 DLC PDC Rev 2...
Page 2: ...DELAY SWITCH 6 3 6 SEQUENCE OF OPERATION 7 4 CALIBRATION 8 4 1 DUSK TO DAWN CALIBRATION PROCEDURE 8 4 2 FOOTCANDLE SETTINGS GUIDE 9 5 SPECIFICATIONS 10 6 MAINTENANCE 11 7 DLC PDC TROUBLESHOOTING GUID...
Page 3: ...ations of the sensor including but not limited to the indoor outdoor atrium and skylight types 1 2 Overview The DLC PDC Photodiode Controller automatically switches a dry contact in response to change...
Page 4: ...nnected to Terminal 4 see Figure 1 2 2 Load Connections The DLC PDC Form C output has Common connected to Terminal 7 LOAD RATING 3A MAX the Normally Open contact is connected to Terminal 6 and the Nor...
Page 5: ...dicator LEDs switch functions control options and sequence of operations 3 1 High Level Setpoint and LED Indicator The top trimpot labeled OFF see Figure 2 sets the High Level Setpoint which is the le...
Page 6: ...ator The third LED located beneath Terminal 8 See Figure 2 indicates the status of the DLC PDC s relay If the LED is lit the relay is energized Since this is a normally closed relay energizing the rel...
Page 7: ...the day as the sensor light level increases to the maximum light level and then starts to decrease towards dusk As the light level passes through the High Level Setpoint the High Level Setpoint LED wi...
Page 8: ...ask more difficult This procedure has been created in such a manner as to not require any sophisticated calibration equipment Shown below are the tools needed for Dusk To Dawn calibration of the DLC P...
Page 9: ...0Fc 1000Fc 1200Fc 1400Fc 1600Fc 1800Fc 2000Fc Table 1 DLC PD Sensor Footcandle Chart EXAMPLE 1 If a DLC PD OT Outdoor sensor is providing the input signal and it is desired to switch lights ON at 30 F...
Page 10: ...C Input Sensor Type DLC PD Photodiode 3 wire Input Time Delay 30 seconds may be overridden with the Input Time Delay Switch Dead Band Adjustable 5 95 Operating Temperature 12 F to 140 F 11 C to 60 C A...
Page 11: ...11 6 MAINTENANCE Every 6 months inspect the wiring for broken or frayed connections Occasionally wipe clean the plastic enclosure Figure 4 DLC PDC WIRING CONNECTION DIAGRAM...
Page 12: ...12 Figure 5 DLC PDC AND OCCUPANCY SENSOR CONNECTION DIAGRAM...
Page 13: ...s exposed to bright light the reading should be approximately 10VDC Faulty Controller Examine the gross functionality of the DLC PDC by doing the following 1 Turn off the Input Time Delay Switch 2 Dis...
