Figure 4 Design Of The Conditioning Unit Pss-20, Back-View - M&C PSS Series Instruction Manual

 Sample gas Inlet
 Electrical connection for heated sample line
 Sample gas pump switch
 Acid dosing peristaltic pump switch (optional)
 Main switch and cold appliance socket
Figure 4 Design of the conditioning unit PSS-20, back-view
When the temperature of the Peltier cooler reaches the contact temperature (default + 8 °C) the
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diaphragm pump Fig. 2/③ can be started by pressing the pump switch Fig. 4/③.
The condensate is continuously discharged through the SR25.2 peristaltic pump Fig. 3/⑧ (see
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instructions for separate assemblies), with the condensate outlet Fig. 3/④ under the front panel
and connected through a DN4/6 mm condensate tube.
In special measurement applications, press down the switch Fig. 4/④ of the peristaltic pump to
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start the acid dosing peristaltic pump SR25.3 Fig. 3/⑧. The acid dosing inlet Fig. 3/④ is at the
lower part of the front panel and connected by a DN4/6 mm dosing tube.
The gas conditioning and sampling system PSS-20 is equipped with two sample gas outlets as
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standard. By installing the flow meter FM40 Fig. 3/⑥, with needle valve, each sample gas outlet
can be controlled according to the specified volume flow range. The flow meter is installed on the
front panel, and the sample gas outlet is at the upper end of the flow meter. It can be selected
from 15-150 Nl/h, 25-250 Nl/h.
Through the up and down arrow keys on the TC1 panel of the Peltier temperature controller Fig
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3/①, the temperature can be adjusted. The temperature range is +2 °C to +15 °C, and the factory
setting is +5 °C.
Gas sample line temperature controller TC2 Fig 3/⑤can be adjusted up to 200 °C. The system
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default heating temperature is 180 °C.
The size of the sample gas inlet Fig. 4/① connection is DN 4/6 mm. The connection is at the back-
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panel of the device. The maximum sampling temperature is 80 °C for PVDF and 180 °C for
stainless steel.
The electrical connection for the heated sample line Fig. 4/② is a standard 7-pin aviation plug.
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Main switch and cold appliance socket Fig. 4/⑤ use standard international 3-hole power cord.
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Voltage: 230 V AC; Fuse: 10 A
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PSS-20 | 1.00.01
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