Dr. Födisch Biogas-Monitor
Bio Gas Monitor BGM 06
- continuous measurement of max. 4 gas components
- measuring principle based on dilution
- for determination of the energy content (CH4 measurement)
- for protection of engines (H2S measurement)
Fields of application
Operating a modern biogas plant is hardly possible without a continuous control of the gas composition. Knowing the gas composition helps the operator to increase the efficiency of the plant and to counteract promptly wrong developments. In addition more and more manufacturers of combined heat and power units demand for the compliance with pollutant limit values - especially for the aggressive H2S - in order to keep warranty.
The biogas monitor can monitor up to 4 gas components continuously. The basic version includes the measurement of CH4 (methane) and CO2 (carbon dioxide) by means of an infrared cell as well as O2 (oxygen) and H2S (hydrogen sulphide) by means of an electrochemical cell.
Technical data
Case: 3-part wall case; dimensions: 610 x 750 x 480 mm (W x H x D), weight ca. 25 kg
Ambient
temperature: +5 … +40 °C
Supply Voltage: 230 VAC/50-60 Hz
Probe
Analyzer Gas sampling via flame Barrier
principle: mix of sample gas with inert gas in proportion of 1:50
Measuring Infrared photometer (CH4, CO2)
principle Electro-chemical cell (O2, H2S)
Measuring Ranges:
CO
2 0 - 100 Vol%
CH
4 0 - 100 Vol%
H2
S 0 - 10.0000 ppm
0
2 0 - 25 Vol%
Display: LC-Display, 240 x 128 pixel, back-lighted
Keyboard: Keypad
Operation: Menu-driven
Detection Limits < 2 % of the respective measuring range
Zero Point Correction: Automatically
Baro Correction: Internally
Response time: T90 < 180 s (depending on plant and chosen component)
Drift: < 5% in maintenance interval
Analogue outputs: 4 ... 20 mA (CO2 , CH4 , H2S and O2)
Digital signals: Failure, maintenance, maintenance requirement, limit values
Interfaces: RS 232, Profibus (optional)
Maintenance: At least half-yearly
Documentation
Dr. Födisch Product information Biogas-Monitor