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9
4.2
Footcandle Settings Guide
The DLC-PDC has a placard attached to the front of the controller which can be used as a reference
guide for a DLC-PD-IN sensor, which is the most common application. Included below is an
expanded guide for the DLC-PD sensors.
TICK MARK GUIDES
DLC-PD
SENSOR
1
2
3
4
5
6
7
8
9
10
Indoor
DLC-PD-IN
10Fc
20Fc
30Fc
40Fc
50Fc
60Fc
70Fc
80Fc
90Fc
100Fc
Outdoor
DLC-PD-OT
25Fc
50Fc
75Fc
100Fc 125Fc
150Fc
175Fc
200Fc
225Fc
250Fc
Atrium
DLC-PD-AT
100Fc 200Fc 300Fc 400Fc 500Fc
600Fc
700Fc
800Fc
900Fc 1000Fc
Skylight
DLC-PD-SK
200Fc 400Fc 600Fc 800Fc 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 Fc and back OFF at 50 Fc, the Low Level Setpoint trimpot
should be set just slightly more than 1 and the High Level Setpoint trimpot should be
set to 2.
EXAMPLE 2:
If a DLC-PD-SK (Skylight) sensor is providing the input signal and it is desired to
switch lights ON at 1200Fc and back OFF at 1400 Fc, the Low Level Setpoint
trimpot should be set to 6 and the High Level Setpoint trimpot should be set to 7.
Note that this guide is provided for the convenience of our customers. It should be treated as
a guide and each application will require tuning to obtain the best results.