EL3060 CONTINUOUS GAS ANALYZERS | OI/EL3060-EN REV. A 107
QAL3 monitoring
Use and description
Use
The QAL3 monitoring is used to continuously monitor the quality of the
measuring results of an automated measuring system (AMS) in normal
operation.
The requirements for the various quality assurance processes are described
in the European standard EN 14181 "Stationary source emissions – Quality
assurance of automated measuring systems". The quality assurance level
QAL3 defined in this standard relates to the monitoring of the AMS during
operation; it is the basis of the functional scope of the QAL3 monitoring.
Description
The QAL3 monitoring is integrated on a memory card in the gas analyzer as
an option. It has the following characteristics:
• Automatic detection, checking and documentation of drift and precision
at the zero point and the reference point
• Analysis by means of CUSUM and Shewhart control charts (see page 108)
• Storage of the QAL3 data in the gas analyzer (max. 1 year)
• Display and request of the QAL3 data and configuration (see page 110)
by means of Web browser
• Status messages if deviations outside the specifications occur
• Export of the data for further processing, e.g. in a spread-sheet program
Prerequisites
The prerequisites for operation of the QAL3 monitoring are as follows:
• The gas analyzer must be connected to a PC via the Ethernet port.
• The latest version of a Web browser must be installed on the PC.
• Cookies and JavaScript must be activated in the Web browser.
• The "QAL3 monitoring" option must be integrated in the gas analyzer.
The memory card with the "QAL3 monitoring" option is located in a slot
on the AMC board (behind the front panel).
The following is displayed in the menu
Maintenance Diagnosis
Device Info: "Option QAL3:OK".
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