3
1
INTRODUCTON
1.1
General
Please read these instructions carefully to prevent any possible injury or equipment damage. For
installation of the product, the installer must be a qualified and experienced technician. Prior to any
installation, inspect the panel for damage and verify the product ratings to confirm that this product
will satisfy your requirements and application.
The DLC-PD Sensor is a generic term used throughout this document to describe all variations 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 in
natural daylight. The DLC-PDC provides a maintained single pole, double-throw relay output to drive
electrically held contactors or relays, or has the ability to provide inputs to Energy Management
Systems (EMS). The DLC-PDC can control incandescent, fluorescent or HID lighting. The low
voltage controller requires a remotely mounted DLC-PD sensor. The DLC-PDC controller provides
Low and High setpoints, with a deadband to eliminate nuisance or intermittent changes.