LANDTEC BIOGAS 3000, Руководство по эксплуатации, Страница: 131 / 181

Operating Manual
Gas Check and Calibration
131
© Copyright 2016 OMBG3000 – Rev1
6.5 Gas Check and Calibration
After the BIOGAS 3000 system has been installed and pressure tested, it is
recommended that a gas check be performed to ensure it is still accurate, as
damage could have occurred during installation and/or transit.
In addition, a gas check can be performed as part of regular maintenance to
validate the accuracy of the system and determine whether a user calibration
is required.
The gas used for a check or calibration should be representative of the gas
within the application, for example, 60% CH
4
balanced with 40% CO
2
.
The BIOGAS 3000 performs a gas check before providing the user with a
decision. If the result of the check is that the instruments accuracy is good, a
calibration may not need to be performed. At this point, the user can decide to
record the results and exit. Alternatively, the accuracy may need improving
and at this point, the user can decide to correct the errors by way of a user
calibration. This will adjust the figures and record the calibration to memory.
The Flow Chart 3 - Gas Check and Calibration is a simple overview of the
process:

Note: It is LANDTEC’s recommendation that a zero check and calibration
is carried out before a span check and calibration.

Note: When selecting a mixture in the ‘Gas Check’ screen, the sampling
process will be stopped.