Galvanic Applied Sciences 943-TGS-CE, Operation Manual

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Revision 5 81 August 2021
The values displayed in this section are live values and cannot be edited. The associated
setpoints and alarm setpoints for the pressure and temperature values can be edited in the
Configuration section’s Parameters page. Refer to Section 5.3.1.
5.2.1.2 Status and Control
This section displays indicators indicating general status of the analyzer as well as
controls that can be used to manually control certain aspects of the analyzer operation.
The status indicators and controls shown in this section are described in Table 18.
Table 18: Status and Control
Indicator / Control Description
Online Status
Shows the current online status of the analyzer.
• Solid Green – Online: Analyzer is online. Analyzer
considers output values to be valid.
•
Flashing Red – Offline: Analyzer is offline. Analyzer
considers output values to be invalid, as during analyzer
maintenance. Control relay is set to Manual.
Online status does not affect operation of analyzer, but rather exists
as a convenience to operator as a remote indication that the
analyzer data is valid or invalid.
NOTE: Online status can ONLY be changed locally using the
keypad. Refer to Section 4.3.1
Sample / Backpurge
Shows the current sampling status of the analyzer:
•
Solid Green – Sample: Analyzer is in sampling mode
analyzing process sample gas
• Flashing Red – Back purge: Analyzer sample system is
being purged with zero gas, as during zero calibration
cycle, manual back purge, or fault state back-purge.
Sample
Pressing this button will place the analyzer in sampling mode if
currently in back-purge mode.
NOTE: Analyzer can only be placed into sampling mode if no
fault conditions are present.
Backpurge
Pressing this button will place the analyzer in back purge mode if
currently sampling.
NOTE: Analyzer should be placed into back-purge mode prior
to carrying out any maintenance on the analyzer itself OR on
the sulfur recovery unit in which it is installed.
Manual Zero
Pressing this button will switch the analyzer automatically to back
purge mode (if currently sampling) and carry out a zero calibration
cycle as described in Section 4.3.4.
NOTE: Analyzer can only carry out a zero calibration cycle if
there are no fault conditions currently present.
5.2.1.3 Relay Indicators
This section displays the current status of the analyzer’s four digital (relay) outputs, which
are used to provide an indication of the status of various aspects of the analyzer
operation. A basic overview of the four relay indicators is given in Table 19; for a more
complete discussion of the function of these four relay outputs refer to Section 3.3.2.