BIOGAS Monitoring System

Gases To Be monitored (Basic)CH4, CO2, O2/ (Additional) - H2S, CO, H2 

Mains power 110 ~ 230 VAC 50/60 Hz, 155W Max

​Power Backup memory Lithium manganese dioxide backup battery for memory retention​

​Gases Measured 

CH4, CO2​ : By dual wavelength infrared cell with reference channel​

​O2 : By internal electrochemical cell

​H2S, CO, H2 : By internal or external electrochemical cell

Cells Lifetime ​ 

CH4, CO2 is used ​semi-permanently​ ​

O2 cell is 3 years in air, all other cells 2 years in air

​Flow 300 ml/min typically

​Flow-Fail Point Flow rate less than 75ml/min or vacuum greater than 350mbar

​Maximum Vacuum Restart -375 mbar

Output Channels​

Up to six analogue 4-20mA output channels that are user configurable for

current sink or source inputs plus Modbus RTU digital output. 

optional profibus module

​Alarm notifications

​- 1 x fault relay 

- 7 x user-configrable alarms that can trigger a relay when above or below a set value. 

- In addition, one can be used to indicate to the operator when

the catchpot is full and requires emptying.​