Portable Biogas analyser series GAS 3200 BIOGAS
Operation manual – Issue EN2014V0
Page
37
of
45
1.
Inlet pure N
2
gas into the gas analyser inlet port at a flow rate of 1L/min during about 2 minutes.
2.
Wait till both
AD and Real values
become stable (= value
5).
Stable or Unstable indications at the left of the AD value are just given for status information, not as an indication that you can
save the calibration.
3.
Press
ENTER
to save the zero calibration. The display shows now the
SPAN
calibration screen.
6.8.4.3
Span calibration
Move the cursor on the channel you want to calibrate (in our example the CH
4
channel) by using
UP
or
DOWN
buttons.
Press
ENTER
.
Press the
UP
button, the input value for the CH
4
channel is now
00.00
Input now the value indicated on the gas cylinder (in our example
99.99%
) using
UP
or
DOWN
buttons to scroll the numbers
from 0 to 9 and
LEFT
or
RIGHT
buttons for moving the cursor to another digit.
Press
ENTER
to confirm the value
