mru OPTIMA User manual

OPTIMA
USER MANUAL
4202EN-O

USER MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 2 / 110
Producer:
Legal notices / Intellectual property rights comments
Original user manual
© 2022 by MRU
No part of this manual my be published in any form (print, fotocopy,
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: 2022-04-11,V.1.00.EN

USER MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 3 / 110
Table of contents
1Information for product and safety............................................... 7
1.1. Safety manual .................................................................................................7
1.2. Safety precautions.........................................................................................7
1.3. Ensure safety ...................................................................................................8
1.4. Important general information (EN 50379 and VDI 4206).............8
1.5. User guideline for rechargeable batteries ....................................9
2Introduction.................................................................................... 10
2.1. Intended use ................................................................................................ 10
2.2. About us ........................................................................................................ 11
2.3. Packaging...................................................................................................... 12
2.4. Return of hazardous materials .............................................................. 12
2.5. Return of electronic equipment............................................................ 12
3Description...................................................................................... 13
3.1. Gas flow diagram........................................................................................ 13
3.2. Analyser.......................................................................................................... 14
3.3. Condensate seperator (water trap)...................................................... 15
3.4. Extraction probes........................................................................................ 19
4Operating ........................................................................................ 20
4.1. Display............................................................................................................ 20
4.2. Keypad............................................................................................................ 21
4.3. Menu structure............................................................................................ 22
5First usage ....................................................................................... 23
5.1. Preparatory steps ....................................................................................... 23
5.2. Customize settings..................................................................................... 23
5.3. Export and import settings ..................................................................... 25
Export user settings........................................................................................... 25
Import user settings .......................................................................................... 26
5.4. Set measurement ....................................................................................... 26
5.5. Set Bluetooth parameters ....................................................................... 28
5.6. Setting date and time ............................................................................... 29
5.7. Configure measurement program ....................................................... 29
5.8. Set CO-Limit................................................................................................. 30
5.9. Change measurement program name ............................................... 30
5.10. Select fuel types and O2reference....................................................... 31
Add fuels to fuel type selection .................................................................... 31
Set O2-reference ................................................................................................ 32
5.11. Define user fuel type................................................................................. 32
5.12. Define measurement window............................................................... 34
5.13. Configure zoom window ......................................................................... 35

USER MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 4 / 110
6Prepare measurement....................................................................36
6.1. Perform overall visual inspection..........................................................36
6.2. Ensure power supply .................................................................................36
6.3. Automatic Auto-off function.................................................................. 36
6.4. Measuring with grid power supply / Battery charging.................36
6.5. Measurements in battery mode (battery monitoring)..................36
6.6. Operating temperature ............................................................................37
6.7. Control Condensate separator ..............................................................37
6.8. Connections and tightness .....................................................................37
6.9. Automatic zero point ................................................................................38
Repeat zeroing ....................................................................................................38
7Performing measurement ............................................................. 39
7.1. Perform Gas measurement .....................................................................39
Core flow search .................................................................................................39
Select Measurement program.......................................................................40
Measurement window......................................................................................42
CO purging ...........................................................................................................42
7.2. Performing measurements with measurement assistant.............43
Switch on the measurement assistant ........................................................43
Use templates......................................................................................................43
Collect measurement........................................................................................44
Reset collected measurements......................................................................46
Print collected measurements .......................................................................47
Individualise function key F2.......................................................................... 48
Transmitting measurements to MRU4u.....................................................49
Transmitting measurements to MRU4u via QR code............................50
Transmitting measurements via QR code ZIV .........................................50
Store measurements .........................................................................................51
Send messages as E-Mail ................................................................................52
7.3. Temporary buffer........................................................................................52
Store values into temporary buffer..............................................................53
Overwrite measured values in temporary buffer....................................55
7.4. Perform Annular-gap test........................................................................56
7.5. Perform Test program ..............................................................................57
7.6. CO/H2 and CO high (optional)..............................................................57
7.7. Non-continuous draft measurement ..................................................57
7.8. Perform pressure measurement............................................................58
7.9. Perform Differential temperature measurement ............................59
7.10. Store measurement values......................................................................60
Enter T-boiler, Soot and Derivative..............................................................61

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MRU GmbH, D-74172 Neckarsulm 5 / 110
7.11. Print measurement values....................................................................... 62
Open menu print-out ....................................................................................... 62
Print measurement results with Speedprinter ......................................... 63
Print measurement results with Highspeed-Bluetooth-
Thermoprinter ..................................................................................................... 65
7.12. Stop measurement..................................................................................... 66
7.13. Last measured values................................................................................ 66
8Data storage.................................................................................... 67
8.1. Organize data storage.............................................................................. 67
8.2. Call up information about Memory info............................................ 67
8.3. Sites administration................................................................................... 68
Create new site.................................................................................................... 68
View sites............................................................................................................... 69
Change sites......................................................................................................... 69
Delete sites ........................................................................................................... 70
8.4. Transfer data via using SD card............................................................. 71
Import sites........................................................................................................... 72
Export sites ........................................................................................................... 73
Export measurements....................................................................................... 74
8.5. Measurements in Data storage ............................................................. 75
View measurements .......................................................................................... 75
Delete measurements....................................................................................... 76
9Extras / Adjustment ....................................................................... 78
9.1. Service menu................................................................................................ 78
9.2. Default settings ........................................................................................... 79
9.3. Service values............................................................................................... 80
9.4. Performing leak test .................................................................................. 81
9.5. Contents SD card........................................................................................ 82
9.6. Device info .................................................................................................... 83
Options list............................................................................................................ 83
Service history ..................................................................................................... 83
10 Maintenance and care ................................................................ 84
10.1. Cleaning and care....................................................................................... 84
10.2. Maintenance................................................................................................. 84
10.3. Service messages........................................................................................ 84
11 Option Gas flow measurement ................................................. 85
11.1. Connect Prandtl (Pitot) tube to analyser ........................................... 85
11.2. Open menu Gas flow measurement.................................................... 86
11.3. Define settings and parameters............................................................ 87

USER MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 6 / 110
11.4. Enter Cross section area...........................................................................88
11.5. Perform measurement..............................................................................88
12 Option: Monitoring flow rate....................................................90
13 Option: Auto-measurement.......................................................91
14 Prefilter for high dust concentrations......................................92
15 Appendix...................................................................................... 94
15.1. Technical data..............................................................................................94
15.2. Analysis and calculation...........................................................................99
15.3. Reset analyser ............................................................................................100
15.4. Troubleshooting........................................................................................101
Troubleshooting on the analyser................................................................101
Troubleshooting condensate separator...................................................102
15.5. Update firmware .......................................................................................103
Check current firmware version ..................................................................103
Prepare SD card ................................................................................................103
Perform firmware update ..............................................................................103
Check new firmware version ........................................................................104
15.6. Display your own logo............................................................................106
Create your own logo .....................................................................................106
Import logo into analyser..............................................................................108
Delete logo .........................................................................................................108
16 Declaration of conformity........................................................109

USER MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 7 / 110
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.
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 MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 8 / 110
1.3. Ensure safety
►Please read the user manual completely before the first use.
►Only use the analyser for the intended use and within the parameters
specified in the technical data.
►Do not use any violence.
►Avoid falls
►Do not put the analyser into use, if the housing, power supply unit or
supply leads are damaged.
►Do not store the analyser together with solvents. Do not use
desiccants.
►Only carry out maintenance and service work on this analyser as de-
scribed in the User Manual. Observe the prescribed action steps.
►Operate the analyser only in closed, dry rooms and protect it from
rain and moisture.
►When operating the analyser on mains power, operate it only with
the mains adapter supplied.
►Do not use the metal tube of the gas sampling probe or other metal-
lic parts / accessories as electrical conductors.
►The analyser must not be located in the immediate vicinity of open
fire or great heat.
►The specified temperature range of the gas sampling probe must not
be exceeded, otherwise the probe tube and temperature sensor will
be destroyed.
1.4. Important general information (EN 50379 and VDI 4206)
•The analyser is not designed to be used for continuous measure-
ments
•Before using the analyser verify the condition of the various parts of
the analyser, such as the probe, the ambient air conditions, the con-
densate separator, star filter and the connectors for damage and/or
blockages.
•When starting the analyser up it will take between 1 –3 minutes to
set to zero depending on the condition of the sensors and ambient
conditions. (Zeroing).
•The minimum zeroing time of the analyser to achieve correct meas-
urement values can be expected by 1.5 minutes!
•Exposure to acids; aggressive gases such as Sulphur; vapours such as
thinners, gasoline, alcohol and paint, etc. can damage, reduce the life
of, or destroy the sensors
•Die Lebenserwartung der Sensoren beträgt, abhängig von Nutzung,
Wartung und Pflege des Messgerätes bei dem O2Sensor ca. 2 Jahre
und bei dem CO Sensor ca. 2-3 Jahre.
•The life of the sensors depends on how they are used, maintained
and treated. Typical average life expectations are: O2 - 2 years; CO -
2 - 3 years and NO - 3 years.

USER MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 9 / 110
•The use of the analyser for regulatory purposes is subject to special
regulations (for example a periodical examination of the analyser).
Please obtain the appropriate regulations from your local responsible
authority.
1.5. User guideline for rechargeable batteries
NOTE
The rechargeable batterie is installed inside the ana-
lyser and is not accessible to the end customer. How-
ever, the following instructions must generally be ob-
served when handling lithium-ion rechargeable
batteries.
►The rechargeable battery can only be used in this analyser.
►Do not throw the rechargeable battery into a fire, charge it at high
temperatures and store it in a hot environment.
►Do not deform, short-circuit or modify the rechargeable battery.
►The rechargeable battery must not be used in or under water.
►Do not expose the rechargeable battery to strong mechanical forces
and do not throw it.
►Do not cut or squeeze the connecting cables of the rechargeable bat-
tery.
►Do not carry or store the battery together with sharp-edged objects.
►Do not connect the (+) contact to the (-) contact or metal.
►Non-observance of the above guidelines can cause heat, fire and ex-
plosions

USER MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 10 / 110
2Introduction
•This manual enables you to understand and safely operate this MRU
Analyser.
•Please read this manual with great vigilant and get familiar with the
product before using it.
•This Analyser may only be operated by competent personnel and for
its intended 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 ana-
lyser over to others.
2.1. Intended use
The Analyser is intended for short-term measurement in the context of
emission control measurements and adjustments at small furnaces. The
analyser measures the measurements provided by VDI4206 and
EN50379 metrics and stores them for further processing.
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 must be used according to instructions for the intended
use.
Our analysers are checked according to the following regulations:
VDE 0411 (EN61010) and DIN VDE 0701 before they leave the MRU
GmbH factory.
MRU technical products are designed and manufactured according to
DIN 31000/ VDE 1000 and UVV = VBG 4 of the professional guilds for
fine mechanics and electrical engineering.
MRU GmbH assures that the analyser complies to the essential require-
ments of the legal regulations of the member states of the electro-mag-
netic compatibility (2014/30/EU) and to the low-voltage regulations
(2014/35/EU).

USER MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 11 / 110
WARNING
Risk from manipulations to the measuring device
Operational safety hazard
►Modifications or changes to the measuring device are
not allowed.
2.2. About us
The analyser is produced by the MRU GmbH in Neckarsulm, Germany
(Founded in 1984), a medium sized company that specializes in devel-
oping, 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.
Plant 1: Sales, Service, R&D
Werk 2: Production

USER MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 12 / 110
MRU GmbH
Fuchshalde 8 + 12
74172 Neckarsulm - Obereisesheim
GERMANY
Fon [phone] (Zentrale)
Fon [phone] (Kundendienst)
Fax [phone]
Email: [email protected]
Internet: www.mru.eu
2.3. Packaging
Save the original carton and packing materials to prevent damage in
transit in case you need to return the unit to the factory.
2.4. Return of hazardous materials
Waste Disposal/Returns/Warranty - MRU is required to accept the re-
turn of hazardous waste such as electro-chemical sensors that cannot
be disposed of locally.
Hazardous waste must be returned to MRU prepaid.
2.5. Return of electronic equipment
MRU is required to accept the return, for proper disposal, of all analys-
ers delivered after 13th of August 2005. Analysers must be returned to
MRU prepaid.

USER MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 13 / 110
3Description
The main task of the analyser is to assist with precision control and ad-
justment measurements of gas, oil and wood fired furnaces.
Available options for this and other analysers can be found on the MRU
Homepage or speak to a member of our sales team.
3.1. Gas flow diagram
In combination with the extraction probe (inserted in the stack) the in-
ternal gas pump of the analyser extracts a portion of the flue gas and
analyses it using electro-chemical sensors.
The thermo-element in the probe tube measures the flue gas tempera-
ture and due to the construction of the probe pressure (draft) can be
measured as well.
Position
Description
1
Sampling probe
2
Triple hose
3
Condensate separator
4
Star filter
5
Non return valve
6
Gas pump
7
Sensor chamber
8
O2-Sensor
9
Further electrochemical sensors optional*
10
CO2 NDIR *
11
CO Purge pump * / not available with CO2-NDIR
12
Pressure sensor *
*optional

USER MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 14 / 110
3.2. Analyser
The analyser consists of a compact and robust glass-fiber reinforced plastic
housing. All connections relevant for the measurement are located on the bot-
tom of the analyser.

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MRU GmbH, D-74172 Neckarsulm 15 / 110
Position
Description
Position
Description
1
Keypad
10
Gas outlet
2
Condensate separator
11
Temperature connection
T1 / T-Ambient air
3
Display
12
Temperature connection
T2 / T-gas
4
IR-Interface
13
Connector AUX
5
USB-Port / Charging port
14
Sampling probe connec-
tion
Condensate separator
6
SD-card reader (Only by
using an MRU-SD card
we can assure the com-
patibility of all analyser
functions
15
Pressure connection 1
(Differential Pressure)
7
Analyser feet
16
Pressure connection 2
(optional)
8
Fixing magnets
17
Pressure connection
Draft
9
Handle strip
3.3. Condensate seperator (water trap)
•CAUTION
Condensate is acidic
The condensate from the container can be slight acidic
and can cause chemical burn.
►Immediately clean with plenty of water once you have
encountered acid
Condensate accumulating during the measurement is collected in the
condensate separator.
Note that there are two variants of the condensate separator.
•Without water stop filter
•With water stop filter
ATTENTION
Gas outlet:
During measurement the gas outlet must not be cov-
ered

USER MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 16 / 110
Remove the condensate separator by lifting it out from the groove (1)
of the analyser. Then pull out the condensate separator downwards (2).
Liquid discharged from the condensate separator may be slightly acidic.
Condensate vessel and plug are screwed into each other. To change the
pocket star filter and dry and clean the condensate separator, it can be
easily disassembled and screwed back together.
After cleaning, a leak test must be performed.
See also chapter 9.4 Performing leak test, Page 81.
An exhaust gas filter is installed in the condensate separator of the
analyser. This filters out the first coarse dirt.
This pocket star filter is washable and can be used approx. 4-5 times.
Frequent measurement results in a high degree of contamination, which
requires regular replacement of the pocket star filter.
Condensate separator
without water stop filter

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MRU GmbH, D-74172 Neckarsulm 17 / 110
Condensate separator
without water stop filter

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MRU GmbH, D-74172 Neckarsulm 18 / 110
The water stop filter protects the analyser from moisture.
The water stop filter closes as soon as there is a risk that condensate is
sucked into the analyser.
A closed water stop filter can be indicated, for example, by the fact that
the flow rate is too low.
See also chapter 12Option: Monitoring flow rate, Page 90. If the
flow monitoring option is installed in your analyser, the corre-
sponding message could indicate a closed water stop filter.
►Check in the water stop filter
►Replace the water stop filter if necessary.
►Remove the condensate separator with water stop from the analyser
as described above.
►Unscrew the condensate separator.
►Replace the water stop filter.
Observe the direction when installing the water stop filter
The side with the sealing ring must point upwards.
Due to the arrangement of the membrane in the filter, the water stop
filter will quickly become defective if inserted in the wrong direction due
to excessive pressure.
The water stop filter should be replaced annually.

USER MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 19 / 110
3.4. Extraction probes
In combination with the analyser, gas sampling probes are offered in
different versions with fixed probe tube or with exchangeable probe
tube. For a complete overview of accessories, see the company's current
price list.
Here two variants are shown as examples:
1
Probe tube
4
Connector for sample gas
measurement
2
Probe cone (high grade steel)
5
Connector for draft measurement
3
Triple hose(NBR or Viton)
6
Connector for temperature
measurement
Probe ST
With 180 mm probe pipe
(fixed)
and 1,5 m sampling line
Probe SF
With 300 mm exchangeable
probe pipe and 2,7 m sam-
pling line

USER MANUAL OPTIMA
MRU GmbH, D-74172 Neckarsulm 20 / 110
4Operating
4.1. Display
All the information needed for the operation of the analyser can be ob-
tained from the analyser's display, which contains the following infor-
mation.
Position
Description
1
Menu bar
2
Display panel
-Menu
-Measurement values
3
Function key bar
4
Battery charge condition
5
SD-Card in the slot
Display yellow
→write-protected
→read-only access
6
Zeroing active