Set BGA Siemens

Область применения

The efficiency of biogenic production processes and optimum operation of the plant largely depends on continuous monitoring of the biogas composition. The basic version of the Set BGA analyzes CH₄ and CO₂ using the proven ULTRAMAT 23 IR analyzer. The concentrations of O₂ and H₂S are optionally measured using electrochemical sensors and also converted into output signals of 4 to 20 mA. In this manner, the Set BGA contributes to operational safety and explosion protection in addition to process optimization.

The modular design of the system takes into account the physical conditions of the gas with regard to temperature and moisture in that various gas preparation components for heating or drying the sample gas can be configured as required.

The gas mixture can be explosive at critical concentration ratios between methane and oxygen. Even if such critical gas compositions occur extremely rarely, the danger of ignition must nevertheless be avoided. For this reason, the Set BGA is designed with a high safety standard and even the basic version is equipped with flow monitoring and detonation protection in accordance with EN 12874 in the sample gas path. To increase safety even further, a gas sensor for monitoring the ambient air can be connected as an option.

It is also possible to monitoring up to four measuring points using an optional sample switching cabinet. In this case the sample flows are sucked in continuously using a powerful pump in order to achieve fast measuring times.

Обзор

The Set BGA (biogas analyzer) is a standardized system for stationary, continuous operation for the analysis of landfill gas, sewage gas or biogas.

Дизайн

The Set BGA consists of the following components:

• ULTRAMAT 23 analyzer with four measured components max.
• Analyzer cabinet with modularly configurable gas preparation components
• Cabinet for measuring point switchover (option)
• Heated line (option)

The ULTRAMAT 23 is selectable with two IR components (CO₂ and CH₄). Furthermore, the configuration can be equipped with an electrochemical oxygen sensor and/or an electrochemical hydrogen sulfide sensor. The corresponding measuring ranges are listed in the table below.

The ULTRAMAT 23 calibrates the IR components and the electromechanical oxygen sensor automatically with ambient air. Calibration with calibration gas is recommended once a year or after oxygen sensor replacement. In order to comply with the technical specification data, the hydrogen sulfide sensor must be calibrated every three months. An appropriate calibration gas is therefore required. It is supplied to the analyzer through a manually switchable ball valve.

Set BGA measuring system

2-stream sample preparation

Особенности

Standardized complete system

The standardized complete system has a modular configuration and can thus be used at various measuring locations for different measuring tasks.

• Simple and fast to configure
• Field-tested and matched Set in rugged industrial design
• Extremely high long-term stability
• The Set BGA is based on the proven ULTRAMAT 23

Field-proven, reliable technologies

• Autocalibration function with ambient air reduces the maintenance requirements
• Detonation protection in accordance with EN 12874
• Modular system design based on long-term tested components
• LEL sensor for cabinet monitoring (optional)

Simple operation

• Intuitive menu guidance
• Configuration on large displays with plain text
• Two freely-configurable limits per measured component

Технические данные