PRONOVA SSM 6000 User Manual page 15

SSM 6000
CONT
The measuring gas is initially drawn in through the safety device (1) of the selected measuring point (15) and cooled down to 5°C in
the measuring-gas cooler (2). The hose pump (3) pumps the resultant condensate to the condensate discharge. The condensate
must be collected and disposed of by the equipment user. In order to remove dirt particles from the measuring gas, the dehumidified
measuring gas is directed through the aerosol filter (4) at the downstream end of the cooler. The measuring-gas pump (6) pumps the
processed measuring gas through the "flow 1" flowmeter (8) with needle valve (7) to the CH
subsequently discharged through the "Gas out 1" outlet. These three gases are continuously measured, so that the current gas
concentrations are at all times displayed at the analyzer.
Since H S measurement is a discontinuous process, the analyzer includes a second gas path. Following expiration of a set
2
measuring interval, filtered ambient air is first pumped to the H
and the air filter (10) eliminate foreign particles from the zero gas.
Depending on the H S concentration in the biogas, this is then followed by several dilution stages in the case of the SSM6000
2
Classic analyzer version where defined amounts of ambient air are added to the biogas. As a result, the H
exposed to more than 25 ppm irrespective pf the H
In the case of the SSM6000 LT analyzer version, the biogas is directed to the H
sensor, the average H S concentration should be significantly lower than 200 ppm. The H
2
totals 1000 ppm.
The measuring-gas volume through the H
the needle valve (13) of the analyzer. Since H
an H S measuring cycle. The measuring gas of the H
2
The pipes and hoses used to discharge the measuring gas should be as short as possible and extend separately into the
open!
In the following analyzer version, all gas types are measured continuously. In order not to overstrain the H
H S concentration should not exceed 50 ppm. The service life of the H
2
No warranty is hence assumed for the H
Fig.: Process flow chart SSM6000 continuous
800C-07.07.EN
S sensor in order to determine its zero point. The chemical filter (9)
2
S concentration in the biogas.
2
S channel is set at around 30 liters per hour by means of the "flow 2" flowmeter (14) and
2
S measurement is a discontinuous process, the volume flow can only be set during
2
S measurement is discharged into the open through the "Gas out 2" outlet.
2
S sensor.
2
SSM 6000C User Manual
, CO and O
4 2
S sensor undiluted. In order not to overstrain the
2
S measuring range of the SSM6000 LT
2
S sensor can only be vaguely defined with this configuration.
2
HARDWARE DESCRIPTION
sensor and is
2
sensor will never be
2
S sensor, the average
2
15