Model 580A
4
CAUTION:
The Model 580A Controller is easy to install and operate. However, one
should fully read and understand this manual before attempting to place the
system in service.
Figure 1: Model 580A Controller
1.3 Controller
The Model 580A Controller is a two-channel system where the controller continuously
monitors the inputs of two sensors. The sensors are monitored independently (i.e. they
are not scanned, nor are the signals summed).
The unit has:
•
Channel LED indicators for two channels
•
LED indicators for High, Low, Fault, Calibration, and Setup
•
Mode Button that is accessed using a small screw driver
•
Digital Display in %LEL
•
High, Low & Fault relays common for both channels
