Honeywell ACM 150 Manual To Installation, Operation, And Maintenance page 20

ACM 150
Figure 6. Sample Inlets 40-Point
Sample valve control panel
The Sample valve control panel provides both status and control. As the ACM 150
monitor switches the sample valves from one area to the next, the corresponding
LEDs light indicate the current area being sampled and analyzed. Each area number
is also a momentary test switch, which may be pressed and used for test purposes
when the ACM 150 monitor is in the Front Panel Mode. In other modes the switches
are inactive.
Figure 7. Sample valve contol panel
A column of LEDs on the left and right sides indicate the vacuum, measured in psia,
in the bypass flow (Bypass Vacuum) and in the sample flow (Sample Vacuum). They
are a troubleshooting aid should the vacuum fall below acceptable levels. Status
LEDs are provided for the following:
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