mru MGAprime Q User manual

MGAprime Q
USER MANUAL
9452EN-PRQ

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 2 / 117
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Original user manual
© 2021 by MRU
No part of this manual my be published in any form (print, photocopy, electronic
media or any other publication form) without a written approval by the publisher.
All user trade marks and name mark descriptions, even those which are not marked
as such, are properties of the respective owners.
Edition: 2021-05-28, V3.00.EN

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 3 / 117
Table of content
1Information for product and safety............................................... 7
1.1. Safety manual .................................................................................................7
1.2. Safety precautions.........................................................................................7
2Introduction...................................................................................... 8
2.1. Intended use ...................................................................................................9
2.2. About us ........................................................................................................ 11
3Description...................................................................................... 12
3.1. Task.................................................................................................................. 12
3.2. Gas flow diagram........................................................................................ 12
3.3. Analyser.......................................................................................................... 13
3.4. Connectors.................................................................................................... 14
3.5. Heated Gas sampling probe................................................................... 15
3.6. Gas conditioning......................................................................................... 16
3.7. Gas supply..................................................................................................... 16
3.8. Gas sensors................................................................................................... 17
3.9. Acid injection ............................................................................................... 17
4Operation ........................................................................................ 19
4.1. Commissioning............................................................................................ 19
4.2. Operating panel.......................................................................................... 19
4.3. Charging the battery................................................................................. 20
4.4. Switching on the analyser ....................................................................... 21
4.5. Switching off the analyser....................................................................... 21
4.6. Turn Display.................................................................................................. 21
4.7. Set the analyser to standby mode ....................................................... 22
4.8. Back to homescreen / Back to measure............................................. 23
4.9. Create screenshots..................................................................................... 23
5Settings............................................................................................ 24
5.1. Open menu Settings ................................................................................. 24
5.2. General settings .......................................................................................... 24
5.3. Setting Date and Time.............................................................................. 25
5.4. Device settings ............................................................................................ 27
5.5. Water monitoring....................................................................................... 28
5.6. Averaging...................................................................................................... 31
5.7. Programs ....................................................................................................... 33
5.8. Analog output setup (4-20mA)............................................................. 34
Setting channel ................................................................................................... 34
Setting lower / higher limit............................................................................. 35
Setting Analog outputs during zeroing ..................................................... 36
Pin assignment of the 4-20mA interface (Analog IN / OUT).............. 37
5.9. Analog input setup (4-20mA) ................................................................ 38

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 4 / 117
5.10. Connecting analyser with WIFI (WLAN) .............................................39
5.11. Getting information about the network............................................. 40
5.12. Assigning a fixed IP address................................................................... 41
5.13. Serial connectivity (RS485/USB) ............................................................42
5.14. Default settings ...........................................................................................42
5.15. Configuration of measurement program ..........................................43
Test program........................................................................................................43
Measurement program ....................................................................................43
Further measuring programs .........................................................................44
Moving a value field..........................................................................................44
Assign a measured value................................................................................. 44
Setting zoom........................................................................................................45
6Measurement ..................................................................................46
6.1. Prepare measurement............................................................................... 46
Operating temperature ....................................................................................46
Power supply........................................................................................................46
Opening the transport bag.............................................................................47
Connections to the analyser...........................................................................47
Switch-on, warm-up phase, zero point ...................................................... 48
Attach clip-on filter............................................................................................49
Controlling Filters...............................................................................................49
Connecting Acid Dosing Unit APE................................................................50
Perform leak test.................................................................................................52
Repeated Zero point .........................................................................................54
Automatic zero point ........................................................................................54
Charging state of the battery.........................................................................55
6.2. Take a measurement .................................................................................55
Starting the measurement ..............................................................................55
Setting O2-Reference ........................................................................................55
Storing measured values .................................................................................56
Selecting channels for graphic display .......................................................56
Starting Auto-measurement...........................................................................59
7Data storage....................................................................................62
7.1. Organizing data storage ..........................................................................62
7.2. Managing sites ............................................................................................62
Adding a new site...............................................................................................62
Changing site data.............................................................................................63
Deleting sites .......................................................................................................64
Recalling stored measurements....................................................................64
7.3. Data transfer via USB (CSV export) ......................................................65

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 5 / 117
8Extras ............................................................................................... 68
8.1. Open menu Extras...................................................................................... 68
8.2. History ............................................................................................................ 68
8.3. System extensions...................................................................................... 70
8.4. Connections.................................................................................................. 72
8.5. Automatic device start.............................................................................. 72
8.6. Instrument leak test................................................................................... 73
8.7. Printing measurement results................................................................ 76
Printing current measurement results........................................................ 77
Printing stored measurement results.......................................................... 77
9Service ............................................................................................. 79
9.1. Open menu Service ................................................................................... 79
9.2. Service values............................................................................................... 79
9.3. Performing Device selftest...................................................................... 80
9.4. Internal log settings................................................................................... 81
Copying all log data .......................................................................................... 81
Copying single log data................................................................................... 82
10 Info ............................................................................................... 84
10.1. Open menu Info.......................................................................................... 84
10.2. Calling up device info ............................................................................... 84
10.3. Device usage ................................................................................................ 85
11 Entering Pin code........................................................................ 86
12 Calibrating NDIR cuvette ........................................................... 87
12.1. Connecting analyser to sample gas cylinder.................................... 87
12.2. Calibrating NDIR reference points ....................................................... 88
Reference point calibration ............................................................................ 89
13 Maintenance and cleaning......................................................... 90
13.1. Cleaning and maintenance ..................................................................... 90
13.2. Service check................................................................................................ 90
14 Transport and storage................................................................ 91
15 Simple service work.................................................................... 92
15.1. Information of the analyser components.......................................... 92
15.2. Updating the firmware ............................................................................. 92
16 Specifications .............................................................................. 95
16.1. Specifications of NDIR technology ...................................................... 95
16.2. Sensors for Oxygen, Temperatures and Pressure........................... 96
16.3. Gas sampling and conditioning ............................................................ 96
16.4. Calculated values and accessories ....................................................... 97
16.5. Data communication................................................................................. 97
16.6. Technical data.............................................................................................. 97

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 6 / 117
16.7. Technical data Acid Dosing Unit APE..................................................98
17 Options......................................................................................... 99
17.1. Gas flow measurement.............................................................................99
Parameter for gas flow measurement ........................................................99
17.2. Operating analyser with Nickel Metal Hybrid (NiHM) Battery.100
17.3. RS485 Extern...............................................................................................101
17.4. Screw adapter onto HPI-Probe (Option)..........................................102
18 Appendix....................................................................................103
18.1. Error diagnosis regarding the measuring instrument.................103
18.2. Condensate alarm ....................................................................................104
Condensate self help.......................................................................................104
Start drying manually......................................................................................105
18.3. Switching off the analyser in case error ...........................................107
18.4. Connecting analyser with MRU4win..................................................107
Connecting analyser with MRU4win via serial interface (RS 485)...107
Connecting analyser with MRU4win via TCP/IP connection.............108
Creating analyser in MRU4win ....................................................................110
18.5. Remote control of the analyser device via VNC............................112
18.6. CxHy Calculation.......................................................................................113
18.7. General Instructions for the heated hose line................................113
Unrolling the heated hose line ....................................................................114
Bending radius of heated sampling lines ................................................115
18.8. Spare parts..................................................................................................115
19 Declaration of conformity........................................................116

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 7 / 117
1Information for product and safety
1.1. Safety manual
All general information and safety precautions of MRU products are
listed in the supplied separate safety manual.
All information and safety precautions for the analyser MGAprime in the
Safety Manual also apply to the analyser MGAprime Q.
Therefore, this manual must be read and observed before the first use
of the instrument.
Instrument-specific safety and warning requirements in this manual are
prefixed before dangerous actions.
1.2. Safety precautions
The used categories of safety precautions are here explained once
more.
DANGER
Identifies an immediate, impending hazard that, if
ignored, will result in severe bodily injuries or death.
WARNING
Identifies an immediate, impending hazard that, if
ignored, may result in severe bodily injuries, material
damage or death.
CAUTION
Identifies a possibly dangerous situation that, if
ignored, may result in minor injuries.
ATTENTION
Identifies a possibly harmful situation that, if ignored,
may result in damages to the device or its
surroundings.
NOTE
Identifies user tips and other especially important infor-
mation.
The explanation of safety notices:
CAUTION
HOT –danger of burns and fire hazards from gas
extraction probe.
Physical harm and property damage can be caused.
►Cool down the probe tube.

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 8 / 117
2Introduction
•Read and observe the separately supplied Safety manual.
•This manual enables you to understand and safely operate this
MRU Analyser MGAprime Q.
•Please read this manual with great vigilant
•Get familiar with the product before using it.
•This analyser may only be operated by competent personnel and
for its intended use.
•The analyser may only be used by qualified personnel for the in-
tended use.
•Please pay special attention to all safety directions and warnings
to prevent personal injuries and damaging of the product.
•We can’t be held responsible for any injuries and/or damages that
occur by not following the instructions in this manual.
•Always keep the manual near you when working with the analyser,
to be able to read instructions as needed. Please ensure to hand
over all documents to when handing the analyser over to others.
•Hand over all documents when passing on the analyser to third
parties.

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 9 / 117
2.1. Intended use
The analyser MGAprime Q is proofed according to DIN EN 15267-4.
The following table lists proofed and non-proofed measured values.
Measured variables
and conversions.
Proofed according to
15267-4
Notes
O2

CO

NO

NO2

CO2

SO2

N2O

Flue gas temperature
-
Air temperature
-
Measurement of the
ambient temperature
Draft / Differential
Pressure
-
Velocity (v)
-
Measurement with
Pitot tube
ppm -> mg/Nm³
-
NOx: mg/Nm3 NO2
-
O2Ref
-
mg/kWh
-
The proof according to DIN EN 15267-4 was performed under the
following conditions:
Grip heating temperature
160 °C
Heating hose temperature
160 °C
3m Heating hose
Zero-point interval
deactivated
The following functional modules are not part of the proof according to
DIN EN 15267-4:
•Data Storage
•Internal logger

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 10 / 117
The Analyser MGAprime-Q is designed for the gas analysis of flue gases,
as they are emitted from gas/oil burners, engines, or heating and power
appliances.
The analyser is intended to support the user in control and indicative
measurements in an efficient, accurate and reliable way.
The analyser is specifically not intended as a safety device or personal
protective equipment.
The analyser should not be used as a warning device to warn people
against the presence of harmful gases.
The analyser was manufactured according relevant standards and
regulations.
The analyser must be used according to instructions for the intended
use.
WARNING
Risk from manipulations to the measuring device
Operational safety hazard
►Modifications or changes to the measuring device are
not allowed.
Syntax
Please note that this manual makes use of the scientific notation of
gases (NO2), while the instrument itself and its screen shots display the
gases in upper case letter only, i.e. (NO2).

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 11 / 117
2.2. About us
The analyser is produced by the MRU GmbH in Neckarsulm, Germany
(Founded in 1984), a medium sized company that is specialised in
developing, producing and marketing high quality emission monitoring
analysers.
MRU GmbH produces a wide range of instruments, from standard
analysers up to tailor made industrial analysers.
Building 1: Sales, Service, R&D
Building 2: Production
MRU GmbH
Fuchshalde 8 + 12
74172 Neckarsulm - Obereisesheim
GERMANY
Tel [phone] (Front office)
Tel [phone] (Service)
Fax [phone]
Email: [email protected]
Site: www.mru.eu

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 12 / 117
3Description
3.1. Task
The main task of the analyser is to analyse flue gases, as they are emit-
ting from incinerators or engines.
•The analyser is optimized for this purpose and includes all com-
ponents from the gas sampling probe to data processing.
•The analyser also performs other measurement tasks such as
pressure and temperature measurement or measurement of flow
velocity.
1
For an overview on all available options please refer to the company’s
home page or sales representatives.
3.2. Gas flow diagram
In combination with the gas sampling probe, the analyser extracts a par-
tial volume of the flue gas from the combustion channel and
analyses it for its components by means of sensors (e.g. paramagnetic
(oxygen) sensor or NDIR sensors.
A
Fresh air inlet
B
Sample gas inlet
C
Condensate outlet
D
Diff. Pressure connector
F
Gas outlet
G
Acid injection
1
Pressure, temperature and velocity measurements are not part of the proof
according to DIN EN 15267-4. See also chapter 2.1Intended use, Page 8.

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 13 / 117
1
Sample gas filter (PTFE)
2
Dust filter
3
Auto-zero solenoid valve
4
Sample gas pump
5
Double stage gas cooler
6
Sample flow sensor
7
Paramagnetic oxygen sensor
8
Acrodisc PTFE filter
9
Infrared (NDIR) bank
10
Diff. pressure sensor
3.3. Analyser
The Analyser consists of a compact and robust metal
housing with shock-absorbing rubber corners. All electrical and
pneumatic connections are located on the both front sides of the
analyser. The analyser is operated exclusively via the touch-sensitive
touch screen.
The analyser is delivered in a water resistent bag.
During measuring operation, the analyser must be placed in the
Water resistant bag. The water-repellent bag is part of the analyser.

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 14 / 117
3.4. Connectors
Front side right
1
Loudspeaker
2
Ethernet (LAN)
3
USB socket
4
Second USB socket (option)
5
RS485 (Option)
6
Analog outputs 4 ... 20 mA
Analog-inputs 4 … 20 mA
7
Mains power supply
Front side left
8
Sample gas filter
9
Condensate outlet port
Hose connection DN 4/6
10
Sample gas outlet port
(VENT) Hose connection DN
4/6
11
Fresh air inlet port
12
Sample gas inlet port
13
Outlet fan of gas cooler
14
Probe connection, electrical
15
Pressure-/diff. pressure
16
Pressure-/diff. pressure
(Absolute pressure)
17
Combustion air
temperature
18
AUX socket
19
Connection acid injection
20
Connection acid injection

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 15 / 117
3.5. Heated Gas sampling probe
For interchangeable probe tube with flue gas temperature measure-
ment using type K-thermoelement.
2
►Check the probe filter before and after each measurement.
WARNING
Danger of burns and fire hazards from Heated hose
line
Injuries and burns may result.
►Roll out the heated hose line completely for each
measurement.
2
The measurement of the flue gas temperature is not part of the proof according to
DIN EN 15267-4. See also chapter 2.1 Intended use, Page 8.
1
Probe handle
2
Probe tube
3
Fast locking coupling
4
Probe cone
5
Cable plug (14-pin)
6
Heated hose line
7
Cable coupler (5-pin)
8
Fast locking coupling
9
Filter lock

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 16 / 117
NOTE
Please note that heating hoses with 110V and 230V are
offered.
►Check the voltage supply of the heating hose before
commissioning.
►You can operate a 230V heating hose with 110 volts,
but with limited heat capacity.
DANGER
Risk due to improper use
Risk of death due to electric shock
►Do not operate a 110V heating hose with 230V.
See also chapter 18.7 General Instructions for the heated hose
line, Page 113.
3.6. Gas conditioning
The sucked sample gas is dried and filtered before it is fed to the
sensors.
A sample gas cooler with Peltier element is used for drying.
The condensate liquid appearing in the gas cooler is pumped to the
condensate outlet by means of a peristaltic pump. The condensate
forms drops at the outlet of the instrument.
Optionally, connect a hose (DN 4/6) to the condensate drain.
The VENT output delivers the sample gas after the analysis stage.
For subsequent filtering, a round filter is used on the front of the
analyser.
3.7. Gas supply
The analyser contains a gas feed pump (diaphragm pump).
The flow through the gas feed pump is measured and regulated to the
nominal value by the analyser. The analyser requires a gas flow of at
least 50 l/h.
If the pump capacity is not sufficient to reach the flow of the nominal
value, an alarm is issued.
ATTENTION
When measuring with coiled heated hose line, the hose
line is destroyed due to strong heat development.
►Roll out the heated hose line completely for each
measurement.

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 17 / 117
If the flow does not reach the nominal value despite an increase of the
pump capacity, the pump is switched off after a while to protect the
analyser.
3.8. Gas sensors
The analyser has two types of gas sensors:
1. The analyser works with a paramagnetic sensor for the Measure-
ment of O2(oxygen).
2. The analyser works with a non-dispersive infrared absorption
measurement. With this measuring principle it is possible to
measure CO (carbon monoxide), CO2(carbon dioxide), NO nitro-
gen monoxide), NO2(nitrogen dioxide), N2O (nitrous oxide) and
SO2(sulphur dioxide).
3.9. Acid injection
CAUTION
Phosphoric acid (10 %)
Phosphoric acid (10 %) may cause burns.
►If you come into contact with acid, wash the area im-
mediately using a lot of water.
►Note the safety data sheet for phosphoric acid
(10%).
Phosphoric acid (10 %) is injected into the analyser using the
Acid Dosing Unit APE.

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 18 / 117
The injection of phosphoric acid (10 %) is necessary for a correct
measurement.
•The injection guarantees constant conditions in the gas cooler, so
that you can measure dry or humid flue gas.
•The use of phosphoric acid (10%) reduces losses of SO2, NO2on
the humid surfaces of the gas cooler.
Both effects increase measurement accuracy by preventing slow drift ef-
fects caused by slowly forming or saturating moisture films.
Two pumps inject 24ml (2*12ml) of phosphoric acid (10%) per hour dur-
ing the measurement.
See also chapter Connecting Acid Dosing Unit APE, Page 50 to
connect the Acid Dosing Unit APE to the analyser.

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 19 / 117
4Operation
4.1. Commissioning
The analyser leaves the factory assembled and ready for use.
►Check the analyser regarding completeness and integrity.
►Connect the analyser to the mains.
The analyser switches on.
The operating system boots.
Blue LEDs for ON and power supply are switched on.
(In the event of an error, the Power LED lights red)
The device runs through a start routine of 60 minutes.
The start routine includes:
•self-test
•warm-up of the NDIR bench
•cool down of the double stage gas cooler, indicated by the sym-
bol
•Zeroing, indicated by symbol.
The remaining time until the end of zeroing is
displayed.
•Ready for operation after 60min
4.2. Operating panel
All functions are controlled via the touch surface of the instrument.
Different gestures are available in the individual menus and windows.

USER MANAUL MGAprime Q
MRU GmbH, D-74172 Neckarsulm 20 / 117
1
Power-on / off
2
not used
3
not used
4
LED display mains opera-
tion/battery charging mode
5
not used
6
Current flow rate
6a
Current pump load
7
Current temperatures
heated hose
8
Selected measuring pro-
gram, e.g., Test or measure-
ment program
8a
APE
9
Current temperatures of
NDIR bench
10
Current temperatures of gas
cooler 1
10a
Current temperatures of gas
cooler 2
11
Access to detailed infor-
mation on the instrument
components.
Especially for service or in-
quiry
12
Menu Sites
13
Menu Measure
14
Status bar: display of zero
point, alarms, executed
measuring pro-gram, se-
lected fuel, heat-up-, cool-
down phase
15
Menu Settings
16
Menu Extras
17
Menu Info
18
Battery Charge indicator
19
Context menu with window-
dependent additional func-
tions
NOTE
For display reasons, the Service menu is missing from
the description of the operating panel.
4.3. Charging the battery
The analyser has an integrated rechargeable battery.
►Connect the mains plug.
The battery will be charged as soon as it is connected to the
mains.
The blue LED (4) lights up.
►Charge battery for more than 8h is recommended after first start to
allow the battery to charge completely.