M&C PSS Series User manual

Portable Gas Conditioning Unit Series PSS®
PSS-20
Instruction Manual
Version 1.00.01

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Dear customer,
We have carefully prepared this operation manual for you to quickly and easily find and understand
all the necessary information about the product.
If you have any questions, please feel free to contact M&C directly or through your designated dealer.
The corresponding contact address can be found in the appendix of this operation manual.
This Instruction Manual does not claim completeness and may be
subject to technical modifications.
© 0
6/2021
M&C
Tech
group Germany GmbH. Reproduction of this
document or its content is not allowed without permission from M&C
.
PSS®
is a registered trade mark.
Version: 1.00.0
1

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List of Contents
1General information.............................................................................................................. 5
2Safety instructions ................................................................................................................ 6
3Warranty............................................................................................................................... 6
4Used terms and signal indications ........................................................................................ 7
5Introduction .......................................................................................................................... 9
6Application............................................................................................................................ 9
7Technical data..................................................................................................................... 10
8Design Specification............................................................................................................ 12
9Receipt of goods and storage .............................................................................................. 16
10 Installation instructions................................................................................................... 17
11 Supply connections.......................................................................................................... 18
11.1 Tube connections ........................................................................................................................ 18
11.2 Electrical connections ................................................................................................................ 20
12 Commissioning................................................................................................................ 22
13 Closing down ................................................................................................................... 24
14 Maintenance.................................................................................................................... 25
15 Trouble shooting.............................................................................................................. 26
16 Spare parts list................................................................................................................ 28
17 Appendix.......................................................................................................................... 31
List of Figures
Figure 1 PSS-20 gas flow diagram ......................................................................................................... 9
Figure 2 Design of the conditioning unit PSS-20, internal components............................................ 12
Figure 3 Design of the conditioning unit PSS-20, front-view.............................................................. 13
Figure 4 Design of the conditioning unit PSS-20, back-view.............................................................. 14
Figure 5 Tube connections .................................................................................................................... 18
Figure 6 Electrical connection and main switch ① ............................................................................. 20
Figure 7 Circuit diagram of the 7pin socket ② .................................................................................... 21
Figure 8 702 Temperature controller................................................................................................... 22
Figure 9 PSS-20 wiring diagram........................................................................................................... 32
Figure 10 PSS-20 Electrical schematic diagram 230VAC ................................................................. 33

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HEAD OFFICE
M&C TechGroup Germany GmbH ♦Rehhecke 79 ♦40885 Ratingen ♦Germany
Tel：+ 49 02102/935-0
Fax：+ 49 02102/935-111
Email：[e-mail]
Website：www.mc-techgroup.com
China Office
M&C TechGroup China GmbH
Room 8A♦Building 2♦No.518, Xinzhuan Road♦Songjiang District♦China Shanghai
Tel：[phone]
Fax：[phone]

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1GENERAL INFORMATION
The product described in this operating manual has been examined before delivery and left our works
in perfect condition related to safety regulations. In order to keep this condition and to guarantee a
safe operation, it is important to heed the notes and prescriptions made in this operating manual.
Furthermore, attention must be paid to appropriate transportation, correct storage, as well as
professional installation and maintenance work.
All necessary information a skilled staff will need for appropriate use of this product are given in this
operating manual.

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2SAFETY INSTRUCTIONS
Follow these basic safety procedures when mounting, starting up or operating this equipment:
Read this operating manual before starting up and use of the equipment. The information and
warnings given in this operating manual must be heeded.
Any work on electrical equipment is only to be carried out by trained specialists as per the regulations
currently in force.
Check the details on the type plate to ensure that the equipment is connected to the correct mains
voltage.
Protection against touching dangerously high electrical voltages:
Before opening the equipment, it must be switched off and hold no voltages. This also applies to any
external control circuits that are connected.
The device is only to be used within the permitted range of temperatures and pressures.
Check that the location is weather-protected. It should not be subject to either direct rain or moisture.
The gas conditioning system PSS-20 must not be used in hazardous areas.
Installation, maintenance, monitoring and any repairs may only be done by authorized personnel
with respect to the relevant stipulations.
3WARRANTY
In case of a device failure, please contact immediately M&C or your M&C authorized distributor.
We have a warranty period of 12 months from the delivery date. The warranty covers only
appropriately used products and does not cover the consumable parts. Please find the complete
warranty conditions in our terms and conditions.
The warranty includes a free-of-charge repair in our production facility or the free replacement of the
device. If you return a device to M&C China, please be sure that it is properly packaged and shipped
with protective packaging. The repaired or replaced device will be shipped free of delivery charges to
the point of use.

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4USED TERMS AND SIGNAL INDICATIONS
Danger
This means that death, severe physical injuries and/or important
material damages
will occur
in case the respective safety measures
are not fulfilled.
Warning
This means that death, severe physical injuries and/or important
material damages
may occur
in case the respective safety
measures are not fulfilled.
Caution
This means that minor physical injuries may occur in case the
respective safety measures are not fulfilled.
Caution
Without the warning triangle means that a material damage may
occur
in case the respective safety measures are not met.
Attention
This means that an unintentional situation or an unintentional status
may occur
in case the respective note is not respected.
Note
These are important information about the product or parts of the
operating manual which require user’s attention.
Qualified Personnel
These are persons with necessary qualification who are familiar
with installation, use and maintenance of the product.
High voltages!
Protect yourself and others against damages which might be caused
by high voltages.
Corrosive!
These substances destroy living tissue and equipment upon contact.
Do not breathe vapors; avoid contact with skin and eyes.
Wear protective gloves!
Working with chemicals, sharp objects or extremely hi
gh
temperatures requires wearing protective gloves.

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Wear safety glasses!
Protect your eyes while working with chemicals or sharp objects.
Wear safety glasses to avoid getting something in your eyes.
Wear protective clothes!
Working with
chemicals, sharp objects or extremely high
temperatures requires wearing protective clothes.

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5INTRODUCTION
The portable gas conditioning system PSS-20 has been especially designed, so that precise gas
analysis can be carried out in any place and at any time.
The entire gas conditioning system is housed in a compact and robust metal framed protective case
which ensures that the components can be removed easily, and gas analysis carried out quickly, safely
and with a minimum amount of maintenance.
6APPLICATION
The gas conditioning system is ideally suited for both intermittent and continuous operation.
The components of the PSS-20 system are intended for "standard use." We also provide a wide range
of additional equipment and other components if special measurements are required.
Gas sample probe, stainless steel 316, Ø 4/6 mm, length 0.5 m
Gas sample line, PVC tubing, Ø 4/6 mm, length 3 m [not heated)
Peltier gas cooler
Primary fine filter FPF+, filter element fineness 2 µm, with LA3 humidity sensor
Secondary fine filter FPF+, filter element fineness 0.1 µm
Sample gas diaphragm pump N5 KPE (PN: 02P3355)
Peristaltic pumps SR25.2 for continuous removal of condensate
⑧Peristaltic pump SR25.3for acid dosing (otional)
⑨ Flow meters FM40 (15-150 Nl/h & 25-250 Nl/h)
Figure 1 PSS-20 gas flow diagram

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7TECHNICAL DATA
Gas Conditioning Unit Series PSS®
PSS-20
Part No.
760-280200000
Gas outlet dew point
Range of adjustment: +2 to +15 °C [35.6 to 59 °F], factory
setting: +5 °C [41 °F]
Gas outlet dew point stability
At const. conditions: < ±0.1 °C [±0.18 °F]
Gas inlet temperature
*Max. 180 °C [356 °F] with stainless steel bulkhead union
Gas inlet water vapor saturation
*Max. +80 °C [176 °F]
Gas flow rate
*Max. 150 Nl/h
Ambient temperature
+5 to +40 °C [41 to 104 °F]
Storage temperature
-25 °C to +65 °C [-4 to 149 °F]
Pressure
0.7 to 1.4 bar abs.
Total cooling capacity
*Max. 90 kJ/h
Number of gas inlets
1
Number of gas outlets
2 [bypass]
Medium connections
Tube connections DN 4/6 mm
Material of sample contacting parts
Stainless steel 316Ti, glass, PVDF, PTFE, Novoprene, FKM
Ready for operation
Approx. 5 min.
Mains power supply
230 V AC ±10 % 50/60 Hz
Power consumption
Max. 400 VA, with option temperature controller and
heated sample line: 230 V max. 1380 VA
Liquid detection
Yes
Fuse protection
4 A, time-delay, 5 x 20 mm (with option temperature
controller: 10 A, time-delay)
Electrical connection
2 m [≈ 6.6 ft] long universal power cord three-hole national
standard plug
Housing
Impact-resistant case with handle
Case protection
IP20
Housing color
Black/white
Housing dimensions (H x W x D)
Approx. 245 x 341.5 x 411 mm [≈ 9.6“ x 13.4“ x 16.2“]
without anti-collision angles
Weight
Approx. 12.5 kg [≈ 27.6 lbs]

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Options
Type
Part No.
Acid dosing package
Includes dosing peristaltic pump
SR25.3, PVDF tees, PVDF through-plate
connectors and installation and wiring
services
760-280200001
702 Electronic temperature
controller
for max. (8 m [≈ 39.4 ft]
(230 V) heated sample line 100 W/m
702 control range: 0 to 200 °C [32 to
392 °F], input PT100, power: 230 V AC
50/60 Hz, contact capacity: 250 V AC,
max. 6 A, completely mounted and
wiring services incl. 7-pin plug 10 A
760-280200002
* Maximum values in technical data must be rated in consideration of total cooling capacity at 25 °C [77 °F]
ambient temperature and 5 °C [41 °F] outlet dew point.
PTFE = Polytetrafluoroethylene (Teflon®), PVDF = Polyvinylidenfluoride,
Teflon® is a registered trademark used by DuPont Performance Elastomers, USA.
Please note: Nl/h and Nl/min refer to the German standard DIN 1343 and are based on these standard
conditions: 0 °C [32 °F], 1013 mbar.

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8DESIGN SPECIFICATION
Handle
Peltier cooling unit
Diaphragm sample gas pump N5-KPE
Ring-pull
Top of the case
Heat exchanger
Figure 2 Design of the conditioning unit PSS-20, internal components
•All components of PSS-20 portable gas conditioning systems can be removed from the case. Open
the top and left panel with an inner hexagon M4 screwdriver, according to the maximum gas flow
rate discharged, install Peltier cooling unit Fig. 2/② and appropriate diaphragm pump Fig. 2/③
(Refer to the instruction manual of each component).
•The minimum amount of flow is determined by the sample gas pump Fig. 2/③.If the required
minimum total flow rate is not reached, excessive overpressure can lead to premature
destruction of the pump diaphragm.
The gas cooler is equipped with a Duran glass heat exchanger Fig. 2/⑥as standard. Heat exchangers in
PVDF or stainless steel are optionally available.
⑤
⑥
①
②
③
④

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① Peltier temperature controller TC1
② Filter FPF+ with 2 μm filter porosity（including: LA3 humidity sensor)
③ Peristaltic pump SR25.2 for condensate removal
④ Acid dosing Inlet (optional)
⑤ Gas sample line temperature controller TC2 (optional)
⑥ Flow meters 2 x FM40 with sample gas outlet (measuring range: 15 – 150 l/h & 25 – 250 l/h)
⑦ Filter FPF with 0.1μm filter porosity
⑧ Acid dosing peristaltic pump SR25.3 (optional)
⑨ Peristaltic pump SR25.2 for condensate removal
⑩ Condensate outlet
Figure 3 Design of the conditioning unit PSS-20, front-view
•In order to prevent the liquid from entering the downstream analytical instrument and improve the
working safety of the entire system, the humidity sensor LA3 is installed in the FPF+ filter as
standard component.
When the humidity sensor detects that the liquid enters the filter, the system will automatically turn
off the sample gas pump. When the liquid is cleaned, the system will return to normal operation.
Filter FPF+ Fig. 3/②and FPF Fig. 3/⑦are installed in front of diaphragm pump Fig. 2/③ to ensure
adequate particle separation.
⑤
⑥
⑦
①
②
③
⑨
④
⑩
⑧

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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
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
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
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
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
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
default heating temperature is 180 °C.
•The size of the sample gas inlet Fig. 4/①connection is DN 4/6 mm. The connection is at the back-
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. 4/②is a standard 7-pin aviation plug.
•Main switch and cold appliance socket Fig. 4/⑤use standard international 3-hole power cord.
Voltage: 230 V AC; Fuse: 10 A

⑤
①
②
③

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•PSS-20 portable gas conditioning systems is equipped with a pull ring Fig. 2/④which can be
equipped with a strap to facilitate the user's portable movement.
•When the heat exchanger tubing needs to be replaced, it is convenient to replace it by opening the
top of the case Fig. 2/⑤. The grilles on the left and right-side panels ensure adequate ventilation
and heat dissipation. The unused mounting holes are sealed with a blocking column.
Optional：Acid dosing package
Under ultra-low emission conditions, a portable flue gas analyzer is faced with a great challenge to
monitor the flue gas with high humidity, low temperature, low SO2and low NOx. The main challenge is
how to effectively remove water vapor in the flue gas without affecting the accurate analysis of a low
SO2concentration.
For ultra-low emission monitoring, PSS-20 specially introduces portable acid-added condensation
pretreatment, which can well solve the problem of SO2 soluble in water and can completely meet the
monitoring requirements of high humidity and low concentration SO2 and NOx under ultra-low
emission conditions.
It is recommended to add 5 % H3PO4.
When adding acid, first turn on the acid dosing peristaltic pump switch Fig. 4/ ④.The peristaltic pump
will start conveying the acid. The acid will then enter the heat exchanger tubing together with the
sample gas through the PSS-20 add dosing Inlet Fig. 3/ ④. The excess acid will be discharged through
the SR25.2 peristaltic pump Fig. 3/ ③ with the condensate. When adding acid it is not needed to turn
off the switch of the acid dosing peristaltic pump switch Fig. 4/ ④.
Warning
Aggressive condensate is possible.
Wear protective glasses and proper protective clothing!

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9RECEIPT OF GOODS AND STORAGE
The gas conditioning and sampling system PSS-20 is completely pre-installed units.
•Immediately after arrival take the gas conditioning system and possible special accessories
carefully out of the packaging material.
•Compare the goods with the items listed on the delivery note.
•Check the goods for any damage caused during delivery and, if necessary, notify your transport
insurance company without delay of any damage discovered.
Note
The gas conditioning unit should be stored in a protected frost-free
area!

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10 INSTALLATION INSTRUCTIONS
Note
The gas conditioning device should be set up away from heat sources
and freely ventilated so that no unwanted heat accumulation occurs.
The case should be placed on an even horizontal surface to ensure a
secure and stable position.
The operating position is exclusively vertical. Only in this case is the
proper condensate separation and discharge in the heat exchanger of
the cooler guaranteed.
For outdoor installation, adequate protection against direct sunlight
and moisture must be provided. In winter, the installation site must
be frost-free; observe the protection class of the case.
To ensure the operational safety of the portable gas conditioning unit
and the downstream analyzers and to avoid false alarms, the sample
gas conditioning unit must not be used outside the specified
temperature range.
Downstream analyzers must always be operated at temperatures
well above the specified gas output dew point of +5 °C. The
temperature range of the downstream analyzers must not be
exceeded. This avoids any condensation of the gas in the connecting
lines to the analyzers.
Unheated gas sample lines must be installed with a gradient down to
the cooler. Condensate pre-separation is then not necessary.

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11 SUPPLY CONNECTIONS
11.1 TUBE CONNECTIONS
Note
Do not swap tube connections; connections are marked accordingly.
After connecting all lines, the tightness must be checked.
Sample gas outlets
② Sample gas Inlet
③ Acid dosing Inlet (Optional)
④ Condensate outlet
Figure 5 Tube connections
All tube connections are equipped with 4/6 mm sealing ring threaded hose couplings made of PVDF
for gas input temperatures of up to a maximum of 80 °C [176 °F] (see chapter 0). If heated sample
lines are used, whereby the gas input temperatures are increased up to a maximum of 180 °C [356 °F],
additional bulkhead unions made of stainless steel are recommended.
Dimension 4/6 mm connecting tubes are used as standard.
The sample gas or condensation tubes, are to be assembled as follows:
1. Remove the union nut from the sealing ring couplings by turning it anti-clockwise. The nut
should be removed from the thread with great care to ensure that the loose sealing ring in the
nut is not lost.
2. Place the union nut over the connecting tube.
3. Place the sealing ring over the connecting tube with the thicker bead towards the nut.
4. Place the tube over the nipple on the thread.
Note
The tightness of the connections can only be guaranteed if the
connecting tube has a straight rim (hose cutter).
5. The union nut is to be screwed tight by hand.
②
③
④
①
①

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The tubes are to be removed in the reverse order.
Warning
Aggressive condensate is possible.
Wear protective glasses and proper protective clothing!

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11.2 ELECTRICAL CONNECTIONS
Warning
False supply voltage can damage the equipment. When connecting the
equipment, please ensure that
the supply voltage is identical with the
information provided on the model type plate!
Note
For the erection of power installations with rated voltages up to 1000 V,
the requirements of VDE 0100 and relevant standards and
specifications must be observed!
The main circuit is equipped with a fuse corresponding to the nominal
current (over current protection); for electrical details see technical
data.
The PSS-20 gas conditioning systems are available with either 230 V/50 Hz or with 115 V/60 Hz (for
circuit diagram see appendix). A 4 A fuse is used on all models as fuse protection. The fuse is located
on the clamp mounting rail (see Figure 2). When optionally using a temperature controller with heated
gas sample line, the overload protection increases to 10 A.
The electrical connection is made via a cold appliance plug with 2 m cable on the left side of the case.
The power socket is equipped with a two-pole main switch.
Figure 6 Electrical connection and main switch ①
①
②