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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Original user manual

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as such, are properties of the respective owners.

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

USER MANUAL NOVAplus

MRU GmbH, D-74172 Neckarsulm 11 / 95

The analyzer is specifically not intended as a safety device or personal

protective equipment.

The analyzer should not be used as a warning device to warn people

against the presence of harmful gases.

The analyzer must be used according to instructions for the intended

use.

Our analyzers 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 analyzer complies to the essential require-

ments of the legal regulations of the member states of the electro-mag-

netic compatibility (89/336/EWG)

WARNING

Risk from manipulations to the measuring device

Operational safety hazard

►Modifications or changes to the measuring device are

not allowed.

USER MANUAL NOVAplus

MRU GmbH, D-74172 Neckarsulm 12 / 95

2.2. About us

The analyzer 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

analyzers. MRU GmbH produces a wide range of instruments, from

standard analyzers up to tailor made industrial analyzers.

Plant 1: Sales, Service, R&D

Plant 2 (Production)

Fuchshalde 8 + 12

74172 Neckarsulm - Obereisesheim

GERMANY

Tel +49 71 32 99 62 0 (Front office)

Tel +49 71 32 99 62 61 (Service)

Fax +49 71 32 99 62 20

Email: [email protected]

Site: www.mru.eu

USER MANUAL NOVAplus

MRU GmbH, D-74172 Neckarsulm 13 / 95

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 GmbH is required to accept

the return 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 GmbH is required to accept the return, for proper disposal, of all

analyzers delivered after 13th of August 2005. Analyzers must be re-

turned to MRU prepaid.

USER MANUAL NOVAplus

MRU GmbH, D-74172 Neckarsulm 14 / 95

3Description