The Model 480A is a compact,
reliable and versatile single channel system for continuous
monitoring of combustible gas (hydrocarbon) concentrations.
The system consists of a remote catalytic sensing assembly and
a solid state controller. The controller can be wall, panel
or rack mounted. Electronics for the 480A are field proven in
applications worldwide and include a digital display, scaled
from 0-100% LEL. Four vertically stacked LEDs indicate high
and low alarm status, normal operation and any malfunction conditions.