mru OPTIMA Biogas User manual

OPTIMA Biogas
USER MANUAL
4202EN-B

USER MANUAL OPTIMA BIOGAS
MRU GmbH, D-74172 Neckarsulm 2 / 98
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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: 2022-06-07,V.1.10.EN

USER MANUAL OPTIMA BIOGAS
MRU GmbH, D-74172 Neckarsulm 3 / 98
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 ........................................ 10
2Introduction ........................................................................................ 11
2.1. Intended use ...................................................................................................... 11
2.2. About us............................................................................................................... 13
2.3. Packaging............................................................................................................ 14
2.4. Return of hazardous materials ..................................................................... 14
2.5. Return of electronic equipment .................................................................. 14
3Description.......................................................................................... 15
3.1. Gas flow diagram.............................................................................................. 15
3.2. Analyser ............................................................................................................... 16
3.3. Condensate seperator (water trap) ............................................................ 17
3.4. Extraction probes.............................................................................................. 20
4Operating ............................................................................................ 21
4.1. Display.................................................................................................................. 21
4.2. Keypad.................................................................................................................. 22
4.3. Menu structure.................................................................................................. 23
5First usage ........................................................................................... 24
5.1. Preparatory steps.............................................................................................. 24
5.2. Customize settings........................................................................................... 24
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.............................................................................. 27
5.6. Setting date and time...................................................................................... 28
5.7. Configure measurement program.............................................................. 28
5.8. Set CO-Limit........................................................................................................ 29
5.9. Change measurement program name...................................................... 29
5.10. Select fuel types and O2reference.............................................................. 30
Add fuels to fuel type selection ........................................................................... 30
Set O2-reference ....................................................................................................... 31
5.11. Define user fuel type ....................................................................................... 31
5.12. Define measurement window...................................................................... 33
5.13. Configure zoom window ............................................................................... 34
6Prepare measurement........................................................................ 35
6.1. Perform overall visual inspection................................................................ 35
6.2. Ensure power supply....................................................................................... 35
6.3. Automatic Auto-off function ........................................................................ 35

USER MANUAL OPTIMA BIOGAS
MRU GmbH, D-74172 Neckarsulm 4 / 98
6.4. Measuring with grid power supply / Battery charging.........................35
6.5. Measurements in battery mode (battery monitoring)..........................35
6.6. Operating temperature...................................................................................36
6.7. Control Condensate separator......................................................................36
6.8. Connections and tightness ............................................................................36
6.9. Automatic zero point .......................................................................................37
Repeat zeroing............................................................................................................37
7Performing measurement.................................................................. 38
7.1. Select measurement menu............................................................................38
7.2. Perform Biogas measurement.......................................................................39
7.3. Perform Exhaust Gas measurement............................................................40
Measurement window.............................................................................................41
CO purging...................................................................................................................41
7.4. Perform Ambient air check.............................................................................42
7.5. Temporary buffer...............................................................................................43
Store values into temporary buffer......................................................................43
Overwrite measured values in temporary buffer............................................45
7.6. Perform Annular-gap test...............................................................................46
7.7. Perform Test program......................................................................................47
7.8. CO/H2 and CO high (optional)......................................................................47
7.9. Non-continuous draft measurement..........................................................47
7.10. Perform pressure measurement...................................................................48
7.11. Perform Differential temperature measurement....................................49
7.12. Store measurement values.............................................................................50
Enter T-boiler, Soot and Derivative......................................................................51
7.13. Print measurement values..............................................................................52
Open menu print-out...............................................................................................52
Print measurement results with Speedprinter ................................................53
Print measurement results with Highspeed-Bluetooth-Thermoprinter .55
7.14. Stop measurement ...........................................................................................56
7.15. Last measured values.......................................................................................56
8Data storage ........................................................................................ 57
8.1. Organize data storage......................................................................................57
8.2. Call up information about Memory info....................................................57
8.3. Sites administration..........................................................................................58
Create new site ...........................................................................................................58
View sites......................................................................................................................59
Change sites ................................................................................................................59
Delete sites...................................................................................................................60
8.4. Transfer data via using SD card.....................................................................61
Import sites ..................................................................................................................62

USER MANUAL OPTIMA BIOGAS
MRU GmbH, D-74172 Neckarsulm 5 / 98
Export sites.................................................................................................................. 63
Export measurements ............................................................................................. 64
8.5. Measurements in Data storage.................................................................... 65
View measurements ................................................................................................ 65
Delete measurements ............................................................................................. 66
9Extras / Adjustment ............................................................................ 68
9.1. Service menu...................................................................................................... 68
9.2. Default settings ................................................................................................. 69
9.3. Service values..................................................................................................... 70
9.4. Performing leak test......................................................................................... 71
9.5. Contents SD card.............................................................................................. 72
9.6. Device info .......................................................................................................... 73
Options list.................................................................................................................. 73
Service history............................................................................................................ 74
10 Maintenance and care .................................................................... 75
10.1. Cleaning and care............................................................................................. 75
10.2. Maintenance....................................................................................................... 75
10.3. Service messages.............................................................................................. 75
11 Option Gas flow measurement ...................................................... 76
11.1. Connect Prandtl (Pitot) tube to analyser .................................................. 76
11.2. Open menu Gas flow measurement .......................................................... 77
11.3. Define settings and parameters .................................................................. 78
11.4. Enter Cross section area ................................................................................. 79
11.5. Perform measurement.................................................................................... 79
12 Option: Monitoring flow rate ......................................................... 81
13 Option: Auto-measurement ........................................................... 82
14 Appendix ......................................................................................... 84
14.1. Technical data.................................................................................................... 84
General Data............................................................................................................... 84
Measured values ....................................................................................................... 84
Analysis and calculations ....................................................................................... 87
14.2. Reset analyser .................................................................................................... 88
14.3. Troubleshooting ............................................................................................... 89
Troubleshooting on the analyser ........................................................................ 89
Troubleshooting condensate separator ........................................................... 90
14.4. Update firmware............................................................................................... 91
Check current firmware version........................................................................... 91
Prepare SD card......................................................................................................... 91
Perform firmware update....................................................................................... 91
Check new firmware version................................................................................. 93
14.5. Display your own logo.................................................................................... 94

USER MANUAL OPTIMA BIOGAS
MRU GmbH, D-74172 Neckarsulm 6 / 98
Create your own logo...............................................................................................94
Import logo into analyser........................................................................................96
Delete logo...................................................................................................................96
15 Declaration of conformity............................................................... 97

USER MANUAL OPTIMA BIOGAS
MRU GmbH, D-74172 Neckarsulm 7 / 98
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 pre-
fixed 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 dam-
age 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 ex-
traction probe.
Physical harm and property damage can be caused.
►Cool down the probe tube.

USER MANUAL OPTIMA BIOGAS
MRU GmbH, D-74172 Neckarsulm 8 / 98
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 sup-
ply 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 metallic
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 de-
stroyed.
1.4. Important general information (EN 50379 and VDI 4206)
•This analyser is not designed to be used for continuous measurements.
•Before using the analyser verify the condition of the various parts of the
analyser, such as the probe, the ambient air conditions, the condensate
separator, star filter and the connectors for damage and/or blockages.
•When starting up the analyser it will take between 1 – 3 minutes to set to
zero depending on the condition of the sensors and of ambient. The mini-
mum zeroing time of the analyser to achieve correct measurement 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.
•The life of the sensors depends on how they are used, maintained and
treated. Typical average life expectations are: O2- 3 years; CO - 2 - 3 years,
H2S 2 years and NO - 3 years.
•The use of the analyser for regulatory purposes is subject to special regu-
lations (for example a periodical examination of the analyser). Please ob-
tain the appropriate regulations from your local responsible authority.
Biogas or other similar gases (landfill gas, bio-methane, coal seam gas etc) is
containing flammable component CH4 and toxic component as well (H2S
and CO2).
Analysers sample a certain volume of the biogas and vent it to the ambient
air.
For this reason, there are two aspects which must be considered:
1) toxicity danger of sample gas
2) flammable (explosion) danger of sample gas

USER MANUAL OPTIMA BIOGAS
MRU GmbH, D-74172 Neckarsulm 9 / 98
1) Inhaling toxic gases is harmful to health and can even cause death in
some cases.
•It is the responsibility of analyser user to ensure that person is skilled and
trained in safety aspects of gases being analysed and procedures to fol-
low while using this instrument.
•Local regulations for possible exposition to toxic gases have to be known
by the user and obeyed by the user of the analyser
•Using a personal gas detector inside the biogas plant is highly recom-
mended since H2S in higher (very dangerous concentration) cannot be
detected by human nose. Only small concentrations around few ppm can
be detected by human nose
•CO2 gas is heavier than air and therefore operator shall avoid using porta-
ble biogas analyser at underground levels. Beside of that CO2 is also
odourless.
•It is not allowed using the portable biogas analyser in confined space or
rooms without sufficient ventilation.
•Sample gas exiting the analyser will flow in the ambient air and only out-
door use or forced ventilation rooms are suitable for using the portable
biogas analyser
2) Regarding flammable gases (e.g. CH4methane) and hazardous area of op-
erating the instruments, user must also be able to recognize the area classifi-
cation and be aware of using the instrument there. This area classification is
country specific, please observe and notice it.
•Instruments may be operated in hazardous areas zone 2 by skilled users
obeying local guidelines e.g. by using LEL gas detectors

USER MANUAL OPTIMA BIOGAS
MRU GmbH, D-74172 Neckarsulm 10 / 98
1.5. User guideline for rechargeable batteries
NOTE
The rechargeable batterie is installed inside the analyser
and is not accessible to the end customer. However, the
following instructions must generally be observed 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 tem-
peratures 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 battery.
►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 explo-
sions