The 4802A is a single channel
Combustible Gas Control Module that has been designed for use
with our proven catalytic bead sensors. It is designed to monitor
combustible gases and vapors within the lower explosive limit
(LEL) and provide status indication and alarm outputs. Microprocessor-based
electronics allow all options to be user selectable through
the front panel interface (mode/select switch and digital display).
A digital display indicates gas concentration, fault codes,
calibration cues and setup options. Other features include:
LED indications of status, as well as both open collector and
relay outputs for fault, low alarm and high alarm.
Refineries