Galvanic Applied Sciences 943-TGS-CE, Руководство по эксплуатации

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Revision 5 47 August 2021
Table 4: Service Relay States
Condition Display Indicator Colour Explanation
Normal Green
All monitored system parameters are
within normal limits. No faults are present
Warning Red
At least ONE of the following conditions
is true:
• Control cabinet interior
temperature is outside specified
range
•
Spectrometer integration period
>500 ms
• Sample Absorbance >2.0 AU
•
Sulfur vapour concentration
exceeds specified warning set
point
• Spectrometer peak height at last
zero calibration is too low
An analyzer with any active warnings will continue in sampling mode and provide valid
analysis results, although warnings indicate that there is an issue with the analyzer that,
if left unchecked, could lead to a fault condition. The warning condition will clear when the
parameter that caused the warning condition returns to its normal range.
3.5.2.3 Mode
The Mode output indicates when a zero calibration, either manually requested or
automatic, is in progress. Table 5 describes the Mode relay states.
Table 5: Mode Relay States
Condition Display Indicator Colour Explanation
Run Green
Analyzer is not performing a zero-
calibration run, either manual or
according to an automated schedule.
Calibrate Yellow
One of the following conditions is true:
•
A clock-triggered automatic zero
calibration cycle is in progress
• A manually requested zero
calibration cycle is in progress
•
Analyzer power is off
When this indicator is in the ‘Calibrate’ state, the analyzer is not measuring the process
tail gas. After a calibration cycle is complete, the Calibrate state will persist for a specified
time interval (the Zero Hold Interval), allowing process gas to reach the measurement cell
and the analyzer concentration measurements to return to stable process values prior to
returning to the Run state.
If there are any faults currently present (i.e. Status relay is in fault state) the Mode
indicator CANNOT switch to Calibrate – Calibration is ONLY possible when all fault
conditions are cleared, and the Status relay is in the Normal condition. The only