Honeywell Vertex M Technical Handbook page 83

Vertex M 24-Point Continuous Monitor
TM
Fault Indicators
In addition to changing color, an event window opens indicating a new event.
A yellow square inside the status bar in the analyzer block indicates an analyzer-specific fault.
A yellow square inside of the point block indicates a point-specific fault.
• See Section 6.3 Maintenance Faults
• See Section 6.5 Information Events
Section 4 - Operation 4-7
M - Indicates a
maintenance
fault
F - Indicates
an instrument
fault