mru NOVAplus User manual

USER MANUAL NOVAplus
MRU GmbH, D-74172 Neckarsulm 1 / 95

USER MANUAL NOVAplus
MRU GmbH, D-74172 Neckarsulm 2 / 95
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Edition: 2020-07-01-V1.00.EN

USER MANUAL NOVAplus
MRU GmbH, D-74172 Neckarsulm 3 / 95
Table of content
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................9
1.5. User guideline for rechargeable batteries............................................9
2Introduction.................................................................................... 10
2.1. Intended use ................................................................................................ 10
2.2. About us ........................................................................................................ 12
2.3. Packaging...................................................................................................... 13
2.4. Return of hazardous materials .............................................................. 13
2.5. Return of electronic equipment............................................................ 13
3Description...................................................................................... 14
3.1. Measurement principle ............................................................................ 15
Gas flow diagram with gas cooler................................................................ 16
Remote control unit (RCU).............................................................................. 17
Base unit condensate separator ................................................................... 18
Base unit with condensate separator.......................................................... 19
Connectors depending on the options (condensate separator)....... 20
Base unit with gas cooler (option) ............................................................... 21
Connectors depending on the options (gas cooler) ............................. 22
Gas sampling probes ........................................................................................ 23
4Operating ........................................................................................ 24
4.1. Display............................................................................................................ 24
4.2. Keypad............................................................................................................ 25
4.3. Connection Remote control unit (RCU) to base unit..................... 26
Declaration of symbols..................................................................................... 26
4.4. Reset and Blink codes............................................................................... 28
4.5. Menu structure............................................................................................ 28
5First usage ....................................................................................... 30
5.1. Preparatory steps ....................................................................................... 30
5.2. Analyzer settings ........................................................................................ 30
5.3. Measurement settings.............................................................................. 31
5.4. Switch-On protection................................................................................ 32
5.5. Print-out settings........................................................................................ 32
5.6. Bluetooth settings...................................................................................... 33
5.7. Setting date and time ............................................................................... 33
5.8. Configuring Measurement Programs ................................................. 34
5.9. Setting CO limit value............................................................................... 34
5.10. Select fuel types and 02 reference....................................................... 35

USER MANUAL NOVAplus
MRU GmbH, D-74172 Neckarsulm 4 / 95
Adding fuels to Fuel type selection ............................................................. 35
Setting 02reference...........................................................................................36
5.11. Defining user fuels type ...........................................................................36
5.12. Defining measurement window ............................................................37
5.13. Configuring zoom window......................................................................38
5.14. Changing measurement program names..........................................39
6Preparing measurement ................................................................40
6.1. Ensure power supply .................................................................................40
6.2. Automatic Auto-off function..................................................................40
6.3. Measuring with grid power supply / Battery charging.................40
6.4. Battery charge condition ......................................................................... 40
6.5. Operating temperature ............................................................................41
6.6. Controlling Condensate separator (water trap)............................... 41
6.7. Connections and tightness .....................................................................42
6.8. Automatic zero-point setting................................................................. 42
Repeating the zeroing ......................................................................................43
6.9. Zeroing with the 3-gas-NDIR bench ...................................................43
7Performing measurement .............................................................44
7.1. Selecting the measuring program........................................................44
7.2. Core flow search .........................................................................................45
7.3. Measured value display............................................................................46
7.4. CO purging (optional)...............................................................................48
7.5. CO/H2 and CO high (optional)..............................................................48
7.6. Specific measurement applications .....................................................49
30 sec. average value calculation according 1. BImSchV_2010 .........49
Annular-gap measurement program..........................................................49
Test program........................................................................................................50
Performing Ambient CO Test.........................................................................51
7.7. Temporary buffer........................................................................................51
Store measured values in the buffer ...........................................................52
Overwrite measured values in buffer ..........................................................53
7.8. Storing measured values .........................................................................53
Entering T-boiler, Soot No. and Derivative...............................................53
7.9. Printing measurement values.................................................................55
7.10. Terminate measurement..........................................................................55
7.11. Last measurement values ........................................................................55
7.12. Pressure measurement .............................................................................56
7.13. Differential temperature measurement..............................................57

USER MANUAL NOVAplus
MRU GmbH, D-74172 Neckarsulm 5 / 95
8Data Storage ................................................................................... 58
8.1. Organizing data storage.......................................................................... 58
8.2. Calling up information about data storage ...................................... 58
8.3. Site administration..................................................................................... 59
Create new site.................................................................................................... 59
View sites............................................................................................................... 60
Searching site ...................................................................................................... 60
Changing sites..................................................................................................... 61
Deleting sites ....................................................................................................... 62
Data transfer using SD card (option) .......................................................... 63
Importing sites .................................................................................................... 63
Exporting sites..................................................................................................... 65
Exporting combustion measurements........................................................ 65
Exporting differential pressure measurements ....................................... 66
8.4. Measurements in Data storage ............................................................. 66
Viewing Measurements.................................................................................... 66
Deleting measurements................................................................................... 67
Transferring measurements to SD-Card (Option) .................................. 68
8.5. Data transfer to the PC (Sweeping district management pro-
grams)......................................................................................................................... 68
9Extras / Adjustments...................................................................... 70
9.1. User definable Logo print out................................................................ 70
9.2. Service calibration menu ......................................................................... 72
9.3. Default settings ........................................................................................... 73
9.4. Service values RCU / Service values Base unit ................................. 73
9.5. Performing leak test .................................................................................. 75
9.6. Contents SD card........................................................................................ 76
9.7. Contents Analyzer info ............................................................................. 76
Options list remote control ............................................................................ 76
Options list base unit........................................................................................ 77
9.8. Self diagnostics ........................................................................................... 77
10 Maintenance and care ................................................................ 78
10.1. Cleaning......................................................................................................... 78
10.2. Maintenance................................................................................................. 78
10.3. Service messages........................................................................................ 78
11 Appendix...................................................................................... 79
11.1. Technical data.............................................................................................. 79
General data......................................................................................................... 79
Gas sampling and conditioning.................................................................... 80
Measurement accuracy data.......................................................................... 80

USER MANUAL NOVAplus
MRU GmbH, D-74172 Neckarsulm 6 / 95
11.2. Calculated values........................................................................................ 84
Data communication.........................................................................................86
11.3. Analysis and calculations .........................................................................87
11.4. Fuel type list .................................................................................................88
11.5. Fuel type list.................................................................................................88
11.6. Text input.......................................................................................................89
11.7. Asking user for decision...........................................................................89
11.8. Firmware update.........................................................................................90
11.9. Troubleshooting..........................................................................................92
Troubleshooting the analyzer........................................................................92
Troubleshooting condensate separator.....................................................93
12 Declaration of conformity..........................................................94

USER MANUAL NOVAplus
MRU GmbH, D-74172 Neckarsulm 7 / 95
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 NOVAplus
MRU GmbH, D-74172 Neckarsulm 8 / 95
1.3. Ensure safety
►Please read the user manual completely before the first use.
►Only use the analyzer for the intended use and within the parameters
specified in the technical data.
►Do not use any violence.
►Avoid falls.
►Do not put the analyzer into use, if the housing, power supply unit or
supply leads are damaged.
►Do not store the analyzer together with solvents. Do not use
desiccants.
►Only carry out maintenance and service work on this analyzer as de-
scribed in the User Manual. Observe the prescribed action steps.
►Operate the analyzer only in closed, dry rooms and protect it from
rain and moisture.
►When operating the analyzer on mains power, operate it only with
the mains adapter supplied
►The analyzer must not be located in the immediate vicinity of open
fire or great heat.
►Do not use the metal tube of the gas sampling probe or other metal-
lic parts / accessories as electrical conductors.
►Do not use the analyzer in or under water.
►The specified temperature range of the gas sampling probe must not
be exceeded, otherwise the probe tube and temperature sensor will
be destroyed.
►Moisture, being pumped out of the condensates trap can be slightly
acidic.
In case of skin contact IMMEDIATELY: clean affected parts of the
body. Avoid getting liquid in eyes. Please carefully clean all parts that
come into contact with the condensates.
►After measurement, vent the analyzer with ambient air and allow the
probe to cool. A hot probe could cause burns or ignite flammable
material.
►Electrochemical sensors are by their operating principle not only sen-
sitive to the gas they are intended for, but for other gases as well.
This cross sensitivity is compensated by MRU for the typical applica-
tion of flue gas analysis. However, unusual high concentration levels
of single gas components might lead to a reduced measurement ac-
curacy of other gas components and to a temporary change of the
sensitivity of sensors, which may require several hours recovery time.
Especially concentration levels as high as several % for single gas
components may affect the measurement of other gas components
at ppm level. Those applications need to be discussed with MRU in
detail

USER MANUAL NOVAplus
MRU GmbH, D-74172 Neckarsulm 9 / 95
1.4. Important general information EN 50379 and VDI 4206
This analyzer is not designed to be used for continuous measurements.
Before using the analyzer verify the condition of the various parts of the
analyzer, 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 analyzer it will take between 1 –3 minutes to set to
zero depending on the condition of the sensors and of ambient.
The minimum zeroing time of the analyzer to achieve correct measure-
ment values can be expected by 1.5 minutes!
Caution: 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- 2 years; CO - 2 - 3 years
and NO - 3 years.
The use of the analyzer for regulatory purposes is subject to special reg-
ulations (for example a periodical examination of the analyzer). 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-
lyzer and is not accessible to the end customer. How-
ever, the following instructions must generally be ob-
served when handling lithium-ion rechargeable batter-
ies.
•This rechargeable battery can only be used in this analyzer.
•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
battery.
•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 NOVAplus
MRU GmbH, D-74172 Neckarsulm 10 / 95
2Introduction
•This manual enables you to understand and safely operate this MRU
Analyzer.
•Please read this manual with great vigilant and get familiar with the
product before using it.
•This analyzer 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 analyzer,
to be able to read instructions as needed. Please ensure to hand
over all documents to when handing the analyzer over to others.
2.1. Intended use
The main task of the analyzer is in supporting the following applications:
•Precise control- and adjustment measurements for Gas-, oil or wood
fired burners
•Flue gas measurement according to 1. BImSchV and KÜO
The CO sensor is protected with the automatic purging pump.
This analyzer can be equipped with additional options and/or additional
accessories to full fill multiple other measuring tasks such as
•Mobile Gas detector (Option HC-sniffer)
•Anemometer (Option Flow velocity, using either a Pitot tube or a
vane)
•Hygrometer/Barometer (Option ambient humidity including temper-
ature and barometric pressure)
•Leak testing device (Option external pressure sensor)
The multiple options and multiple connections possibilities of external
sensors often replaces the need of additional measuring equipment(s).
Ask our sales reps. for available options and accessories or check out
our MRU website.
The wireless remote unit offers the user a variety of advantages while
measuring. Especially in small rooms only the base unit will sit next to
the boiler while the user can operate the unit from a distance. Precise
ambient air temperature measurements can be done with either the
base unit or remote unit (RCU). The RCU can also be used as a
standalone measuring and data logging unit for differential temperature
and differential pressure (and other optional functions). With the op-
tional available gas cooler with automatic condensate draining pump
the unit can also be used for long term measurements