19" panel PC

WindowsWindows XPwall-mounted

Overview
Wall-mounted industrial computer/box dedicated to the analyzer. Supplied with Vistachrom suite (Windows XP delivery optional). Screen, keyboard and mouse are not supplied.

Remote display
Visualization system and automatic report generation on configurable periods.

• 19in display in a control room for immediate values from multiple ports.
• Data printing in the control room
  • Automatic averaging function every 8 hours
  • On-demand printing (rolling average, selected period)
• Data trend storage for historical review

Automation module
The Automation module allows user-defined automated computations: averages, specific historical files, logging and alarm computations.

Objective
Automatic computation of multiple compound average values: H2S, RSH, THT, total sulphur compounds and odorization factor.

General
Analysis results are stored in a Real Time DataBase (RTDB).
The Math module aggregates current and previous results, computes averages and evaluates alarm conditions. Processed data are written to designated locations within the RTDB.
The Modbus driver continuously reads required data from the RTDB and exposes them to DCS/SCADA systems via Modbus protocol.
To enable communication, Modbus client requests must be configured in the host DCS or PLC.
Monthly historical files collect substance results and are archived in CSV format for easy import into spreadsheets or databases.
Calibration standard (DMS) results can be logged on request in a separate monthly file.

Alarm computing
Alarm calculations are executed at each result release.
Alarms can be acknowledged through the Vistachrom suite.
All alarm thresholds are stored in a dedicated .ini file.
Alarm status changes are time-stamped and recorded in monthly text log files.

Security handling
Calibration substance follow-up:

• A deviation alarm against the target value is computed.
• The target value is recalculated after each calibration during analyzer metrological follow-up.

Hardware fault handling

• The Math module monitors analyzer error reports, validates errors and triggers specific hardware alarms.
• An alarm is raised if the analyzer fails to deliver results within a predefined timeout.

Software fault handling

• Each Vistachrom runtime program generates a life signal in the RTDB that can be reported to external DCS via the Modbus driver. These life signals confirm correct software operation.
• All hardware and software alarms are time-stamped and logged in monthly system text files.

Technical specifications

• Form factor: Wall-mounted industrial computer/box dedicated to the analyzer.
• Delivered software: Vistachrom suite (Windows XP delivery optional).
• Screen, keyboard, mouse: Not supplied (optional 19in control room display).
• Remote visualization: 19in control room display for immediate values from multiple ports.
• Reporting: Automatic periodic reports; data printing; on-demand printing (rolling average, selected period).
• Data storage: Real Time DataBase (RTDB); monthly historical CSV files; monthly text log files for alarms and system logs.
• Automation: User-defined computations (averages, historical files, logging, alarm computation) via Automation module.
• Supported analyses/outputs: Average computations for H2S, RSH, THT, total sulphur compounds, odorization factor.
• Communication protocol: Modbus driver to provide data to DCS/SCADA; Modbus client requests must be configured in host DCS/PLC.
• Alarm management: Real-time alarm computation at each result release; thresholds in .ini file; time-stamped logging; acknowledgment via Vistachrom.
• Calibration handling: Deviation alarm and target recalculation after each calibration; optional logging of calibration standard (DMS) results in monthly files.