Description
Overview
Essential details:AO2000-LS25 Advance Optima AO2000 Integrated analyzer system
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AO2000-LS25 Advance Optima AO2000 Integrated analyzer system
The power supply of the gas analyzer is provided via the purging and monitoring unit of the housing purging.
• The power supply to the gas analyzer may only be released from the purging and monitoring unit after the successful initial purge.
• The purging and monitoring unit monitors the overpressure inside the housing and de-energizes the gas analyzer if the level is below the minimum overpressure (e.g. due to a leakage or purge gas supply failure). Sequence of the purging and monitoring unit
The gas analyzer is powered from the purging and monitoring unit, i.e. the purging and monitoring unit prevents the gas analyzer from being energized before the purge is completed.
The flow sequence of the purging and monitoring unit is as follows:
1. After the start of the sequence, the purge gas flow and overpressure in the monitor are monitored by the purging and monitoring unit.
2. If the minimum flow rate of the purge gas and the overpressure are within the specified limits (see Purge parameters for pressurized enclosure on page 10), the purge timer (initial purge time) can be started;
3. After the initial purge time has elapsed, the power supply is released for the gas analyzer.
4. In the event of an error in one of the sequence steps, the controller must be set up to be reset to the beginning.