ImVT 120 II Mini Verticus
Page 82 1st Edition, Rev. 0 Chg. 10
Black / White and Violet / Orange color wires. Refer to unit schematic for additional information.
Under normal operating conditions, the relay is open and the I5 lamp on the PLC is off.
7.6.5 Five Flashes - Carbon Monoxide Monitor Alarm
The compressor system may be equipped with an optional Carbon Monoxide Monitor. This consists of
an electronic module that samples the compressed air supply. The unit will provide a continuous dis-
play of the CO level in PPM, parts per million. If the CO level becomes excessively high, then the mon-
itor will alarm with a red light. In turn, the alarm relay in the CO Monitor is connected to the PLC on
terminal I4. The unit should be calibrated with a test gas monthly. Refer to the manual section on the
CO Monitor.
The relay is wired N.O., normally open. The switch is wired into a wire harness using the White / Black
and Red / White color wires. Refer to unit schematic for additional information. Under normal operat-
ing conditions, the relay is open and the I4 lamp on the PLC is off. On a CO ALARM condition, the
compressor will shutdown, the I4 lamp will be illuminated, and the alarm code will flash.
7.6.6 Six Flashes - Final Separator Shutdown
The high pressure-breathing compressor is equipped with a final separator. This is a stainless steel ves-
sel, approximately 3-3/4 inch diameter, located on the purification panel, beside the compressor. To
prevent fatigue failure of this vessel, the PLC program monitors the pressurization cycles of this separa-
tor and will issue a Warning, and then later an Alarm function. The program is set up for a 90% warning
and a 100% shutdown alarm for this counter feature. The program would be configured to reflect these
values when it is built.
Figure 7-11 CO Monitor
^ WARNING
Do not attempt to override the Final Separator Shutdown. This feature is pro-
vided to protect operating personnel from injury or death.
To Next Page
Loading...
