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SSM 6000
CONT
7.4
Calibration procedure
Calibration of the system can start after you have determined the ACTUAL condition and checked the sensor signals. The calibration
menus are accessed after operation of the key switch via the selection level SETUP MODE
SETUP MODE:
_ MEASUREMENT
_ CALIBRIATION
_ SYSTEM
Select gas types
GASTYPES:
_CH4: CAL
_O2 : CAL
_H2S:
_CO2:
If the oxygen channel only is selected, the sensor sensitivity is calibrated using ambient air only. Calibration gas is not
required in this case. Since the oxygen calibration process differs from the normal calibration process, the oxygen
calibration process is separately described in the section titled "Calibrating the oxygen sensor".
Edit calibration gas concentrations
CAL. GASCONC.:
_CH4:60.0
_O2 :20.9
_H2S:1026
_CO2:40,0
Zero-gas supply
If this has not yet been carried out, then disconnect the hose from the measuring-gas inlet of the analyzer, so that ambient air is
drawn in through the measuring-gas inlet. In order to prevent biogas from escaping, the biogas outlet of the plant must be closed.
Start calibration
ARE YOU SURE?
_ NO
_ YES
CALIBRATION
CONNECT ZERO GAS!
<enter> TO PROCEED
800C-07.07.EN
CAL. OPTIONS:
_ GASTYPES
_ CAL. GASCONC.
_ START GASCAL.
First select the gas types to be calibrated from the GAS TYPES editing level. The display shows
the letters "CAL" behind the gas selected. If a suitable calibration gas mixture is available, we
recommend calibrating all existing measuring components at the same time.
In the next step, enter the concentrations of the individual calibration gas components as shown in
the supplier's analysis certificate. Enter the values in percent by volume for the CH
gases and in ppm / vpm for H
using filtered ambient air, so that, in deviation from the calibration gas concentration, a value of
20.9 percent by volume must be set for oxygen.
When all necessary settings are completed, the calibration process can be started by confirming
the "Are you sure" prompt by replying "Yes".
To feed zero gas to the analyzer the sample line has to be disconnected from the sample gas inlet
for sample point 1. After pressing the <enter> key the calibration process will proceed.
The flow has to be checked and readjusted if necessary.
SSM 6000C User Manual
S. The sensitivity of O
is determined during the rinsing process
2
2
CALIBRATION
CALIBRATION PARAMETERS.
, O
and CO
4
2
2
52
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