MSA MultiGard 5000, Manual

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3103-1001 Rev. 0
the "View Points 17 to 32" button is pressed. The bar graphs are presented for a visual indication of
gas levels and are especially useful in applications where continuous gas levels are present. The
Level is the actual gas reading corrected by auto standardization data and displayed in engineering
units as indicated at the bottom of the screen. The Status indicators show the alarming states
associated with each point.
The Status indicators accurately depict the combined alarming state of each point consisting of
trouble, warning, and alarm level detection. All of the possible messages that can appear are as
follows: "Normal", "TROUBLE", "WARNING", "TRBL/WARN", "ALARM!", "TRBL/ALARM",
"ALARM!/WARN", and "TRBL/W/A". Note that some of these messages may never appear.
Which messages are valid is dependent on the sensor type, the MSA factory warning/alarm selection
of increasing or decreasing, and the user entered set point values.
When the sequencer is operated in the manual mode the data presentation and status indication
described above becomes live after the dwell time has expired for the selected sample point.
“Range:” – This is a text indicator telling the operator the range of sensor. This range should
associate with the scale that is above the bar graph.
"Engineering Units:" - This is the engineering units associated with the named sensor.
“Alarming Disabled Auto Standardization Upper Range Out Of Tolerance” - This indicator will
appear when an auto standardization was completed and any sensor’s upper range is out of
tolerance. All alarming will be disabled. This indicator does not follow the manual sensor alarming
disable push button on the Diagnostics screen.
WARNING
If “Alarming Disabled Auto Standardization Upper Range Out Of
Tolerance” indicator appears on the Overview screen, the alarming
is disabled. Immediate action is required to manually calibrate the
sensor which caused this condition to occur followed by another
auto standardization. See Section 4.1.5, Section 3, and Section 4.1.4
for details. If no action is taken all alarming will stay disabled with
the MultiGard 5000 unit only indicating a trouble condition.
"View Points 17 to 32” - This is an HMI navigation push button that switches to the next 16 points
associated with the same sensor. Once this button is pushed it will indicate "View Points 1 to 16".
This button is not used on MultiGard 5000 unit 8 or 16 point systems.
"Sensor Type:" - This is a text indicator which identifies the type of sensor configured and what data
is currently being viewed.
"Active Sample Point:" - Shows the point number that is currently being sampled. In other words,
the next point that will get its level and status updated.
"Overview" - This is a button which switches the screen back to the Overview.