mru OPTIMA7 biogas User Manual Download Page 75

Page: 75 / 78

USER MANUAL OPTIMA 7 Biogas

MRU GmbH, D-74172 Neckarsulm

75 / 78

11.6.

Troubleshooting

Troubleshooting the analyser

1. Effect

2. Error indication

3. Cause

4. Solution

Device cannot be
switched off by
pressing the OFF
key.

LED behind the con-
densate separator is
on and the LCD dis-
play is dark

Device does not re-
act on any key.

Press ESC and ON sim-
ultaneously!
EMERGENCY OFF
After this, the date and
time have to set new.

Inside of the device
is too cold, device
not ready for oper-
ation.

Display indication:

“Device too cold” or

audible sound every
5 sec.

e.g. device was stored
in a cold place during
winter.

Put the device to a
warm room and wait

Measuring values
are not correct

Sensors already get in
trough with the gas
during calibration.

Vent device with fresh
air and re-start!

No measurement
possible

Device cannot be
switched on or does
not react after being
switched on.
Battery discharge

Connect the device to
the line power in order
to charge the battery.

Measurement with-
out exact tempera-
ture values.

Temperature indica-
tion:
- - - , - °C

Thermo element de-
fective, balancing net-
work interrupted or
not connected.

Call our after-sales
service.
Remove probe from
the gas duct and con-
densate from the
probe tube.

Wrong measuring
values

Measuring range ex-
ceeded:
Value O

too high

Values CO and CO

to low

Connection probe

–

device not correct.
Leakage at probe /
tube / condensate
separator, pump does
not suck correctly

Effect tightness test!
By visual control of
probes, tubes conden-
sate separator, leaking
parts could be found.

Wrong measuring
values

Gas temperature is
too hot or alternates

Probe is not plugged
in correctly, defective
cable in the probe line,
formation of conden-
sate at the probe tip.

Check probe plug re-
spectively probe line
regarding damages
(loose connection), re-
move condensate
from the probe tip.

Summary of Contents for OPTIMA7 biogas

Page 1: ...4102EN BIO OPTIMA7 biogas USER MANUAL ...

Page 2: ...er manual 2021 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 2021 04 19 V1 30 EN ...

Page 3: ...sate separator 16 3 4 Probes 17 4 Operating 18 4 1 Display 18 4 2 Keypad 19 4 3 Menu structure 20 5 First usage 21 5 1 Preparatory steps 21 5 2 Analyzer settings 21 5 3 Setting measurement 22 5 4 Switch ON protection 22 5 5 Setting printer type and print out 23 5 6 Setting Bluetooth parameters 24 5 7 Setting date and time 25 5 8 Configuring measurement programs 25 Setting CO limit value only gas f...

Page 4: ...lues 36 7 7 Terminate measurement 37 7 8 Last measurement values 37 7 9 Pressure measurement option 38 7 10 Differential temperature measurement option 39 7 11 Gas flow measurement option 40 8 Data Storage 44 8 1 Organizing data storage 44 8 2 Calling up information about data storage 45 8 3 Site administration 45 Create new site 46 View sites 46 View sites 47 Searching site 47 Changing sites 48 D...

Page 5: ...ssages 63 11 Appendix 64 11 1 Technical data 64 General data 64 Measured values 64 11 2 Analysis and calculations 68 11 3 Text input 71 11 4 Asking user for decision 71 11 5 Firmware update 72 Install the new software version in the analyser 72 Performing and checking the update 72 In case of error 73 11 6 Troubleshooting 75 Troubleshooting the analyser 75 Troubleshooting condensate separator 76 1...

Page 6: ...e 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 ig...

Page 7: ...st not be exceeded otherwise the probe tube and temperature sensor will be destroyed 1 4 Important general information EN50379 and VDI4206 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 dam...

Page 8: ...as detector inside the biogas plant is highly rec ommended since H2S in higher very dangerous concentration can not 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 portable biogas analyser at underground levels Beside of that CO2 is also odourless It is not allowed using the portab...

Page 9: ...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 cabl...

Page 10: ...over to others 2 1 Intended use The OPTIMA 7 BIOGAS analyser is used for for BIOGAS simultaneous measurements of O2 CH4 CO2 H2S and optional the BIOGAS pressure optional for combustion measurements of the engine O2 CO NO NO2 and CO2 NDIR including the calculation of mg m3 NOx as mg m3 NO2 true NOx measurement NOx NO NO2 referencing normalisation to user settable value It can also be used when opti...

Page 11: ...lowing 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 ...

Page 12: ... 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 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 info mru de Site www mru ...

Page 13: ...azardous 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 analysers delivered after 13th of August 2005 Analysers must be retu...

Page 14: ... and analyses it for its components using NDIR and electrochemical sensors Position Description 1 Biogas sampling hose 2 Connection to gas outlet 3 Condensate separator 4 Star filter 5 Non return valve 6 Gas pump 7 Sensor chamber 8 O2 Sensor 9 Further electrochemical sensors CO NO2 H2S 10 CO2 CH4 NDIR Sensor 11 not used 12 Pressure sensor optional ...

Page 15: ...ated connections at the bottom of the analyser Position Description 1 Display 2 Key pad 3 Temperature connector T2 4 Temperature connector T1 5 Pressure connector P1 6 Pressure connector P2 7 Gas outlet 8 IR Interface 9 USB port and charging port 10 SD card reader 11 Fixing magnets 12 Analyzer feet 13 Handle strip 14 Gas outlet 15 Pressure connector P3 16 Connector AUX ...

Page 16: ...measurement then true T air measurement will occur and the display color changes from green to black 3 3 Condensate separator 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 During the measurement accumulating condensate is collected in the condensate separator ATTE...

Page 17: ...n After cleaning a leak test must be carried out 9 4 Leak proof test S 60 In the condensate separator of the OPTIMA7 an exhaust gas filter is at tached This filter out the first coarse dirt This pocket star filter is washa ble and can be used 4 5 times afterwards Frequent measurements result in a high degree of contamination which requires regular replacement of this filter 3 4 Probes The Analyzer...

Page 18: ...to operate the analyser is displayed as shown below Position Description 1 Menu bar 2 Function key bar 3 Display panel 1 Menu 2 Measurement value 4 Zeroing active 5 SD Card in the slot 1 Indication green Read and write access Indication yellow only Read access SD Card write protected 6 Battery charge condition ...

Page 19: ...purg ing of the sensors Function Keys Activates the functions seen on the display 2 function key bar Menu Key Will show all available functions in the window that is currently in use also those which have an individual key on the key pad like the printer and the three function keys ESC Abort or return to the menu above Arrow Keys Jump in between lines change values OK Confirmation key select a mar...

Page 20: ... are available here to manage and customize the device You can jump in between the 3 main menus with the 3 function keys according to the displayed name on the screen OPTIMA 7 Biogas The topic Biogas measurement is a standard feature in every analyzer and is explained in chapter 7Perform ing measurement Page 33 Other menu points are optional and will be explained ei ther in this manual or in an ad...

Page 21: ...l judgement of the user at 20 C a value of ca 50 is normal Language Option Select device languages Country option Enables some country specific parameters like fuel types calculated values etc Site administration ON OFF The sites administration can be switched off Therefore only one site is active Each measurement will be stored on site 1 Attention All measurements will be deleted by switching the...

Page 22: ... screens The meaning of hPa Pa and kPa Pa is that the in strument performs a dynamic change of unit depending on the absolute value of pressure Explanation for Helping hints Some helpful hints which are very useful for an inexperienced user but are not needed by experienced users can be activated or deactivated The following hints will be affected Zeroing finished Sensors are ready Analyzer ready ...

Page 23: ... you can make for example the following adjustments Printer type Select printer type MRU HP Print logo ON OFF Print logo Print option SHORT LONG SHORT Print out without area for signature and site in formation Print site lines 0 9 Line 1 Site no is necessary Print device info To measuring print out can be shorter designed while the device info will be left out In some print outs adjustment service...

Page 24: ... the analyser and the technical specification of the Bluetooth interface settings for data transmission may be required Please check in the following menu Press F3 The Extras menu appears Press F3 The menu Settings appears Press F2 The menu Bluetooth appears If the settings window appears as shown above please select whether you are connected to an Android or iOS smartphone You realise a connectio...

Page 25: ... Select Date time Press OK The menu Date time appears Press F2 The menu Set clock appears Set the desired date Set the desired time Press F2 A message appears Select store the new date or discard the changes Press OK The changes are stored or discarded 5 8 Configuring measurement programs The following settings are possible Measurement windows configuration of what and where will be dis played in ...

Page 26: ... program appears Select the desired measuring program from which the CO limit value is to be set Press F1 The menu CO Limit appears Set the desired CO limit ppm Press OK The desired CO limit ppm is stored Configuration of the measurement window display content only Biogas measurement Start the measuring program once you are inside the measuring window press the key ...

Page 27: ...ar can be moved up and down Move it to the position that you would like to change or to the position where you want to add a measuring value Once you have reached the position you van uses the arrow left and right keys to change the measuring value When all your changes have been made you press again the menu key Now you select Save measuring window All your changes will be saved and all saved val...

Page 28: ...omed view can be configured Start a measuring program In this example Programm1 Natural gas Select the zoom function using the up down arrow keys Select one of three measurement windows Press the menu key A selection list appears Select Define measuring window Press OK Select the desired measured value that you want to change Press the Menu Key A selection list appears Select Save measuring window...

Page 29: ...arging Whenever you connect the analyser with external battery charger 90 260 V 50 60Hz the battery will be charged Once the battery is fully charged the analyser will switch to trickle charge mode At the moment if the battery is fully charged and the trickle charge mode begins an acoustic feedback will be played 6 4 Battery charge condition The battery symbol in the top right corner displays the ...

Page 30: ... the specified operation temperature between 5 C and 45 C See also Chapter 11 1Technical data Page 64 6 6 Controlling Condensate separator water trap CAUTION Acid from the condensate Acid burns may result from weakly acidic liquids from the condensate If you come into contact with acid wash the area im mediately using a lot of water Control the condensate separator before and after each measure me...

Page 31: ...test to check the tightness of the gas paths See also Chapter 9 4Leak proof test Page 60 6 8 Automatic zero pint setting NOTE The probe must not be in the Biogas during the zero ing Switch on the analyser The analyser autonomously carries out a zero point measurement During zeroing the 0 0 symbol flashes in the upper right corner of the display After zeroing is complete the analyser is ready for m...

Page 32: ...USER MANUAL OPTIMA7 Biogas MRU GmbH D 74172 Neckarsulm 32 78 6 9 Repeating the zeroing The zeroing can be repeated at any time as long as the probe is not in side the stack ...

Page 33: ...flue gas must be able to evacuate the analyser without obstruction The exhaust outlet at the rear of the analyser may never be covered during a measurement never oper ate the analyser in a transport case Go to the Measurement menu Select the desired measurement program Press OK DANGER Rick due to toxic gases There is a risk of poisoning Noxious gases are sucked in by the measuring device and relea...

Page 34: ...urement Print display content ESC Back to Measurement menu 7 3 Flue gas measurement option Measurement values can be organized on three pages each page dis playing 6 measurement values The order of the display is operator settable See also chapter Configuration of the measurement window dis play content only Flue gas measurement Page 27 ...

Page 35: ... T Gas is usually read at the connector T Gas AUX depending on configuration or if not available from the con nector T1 There are three measurement windows available with the arrow keys left and right moving between them Zoom function each with two values is activated by moving the arrow keys up and down Moving arrow keys left and right pages between the two zoom windows 7 4 Setting CO limit value...

Page 36: ...Speedprinter as follows All values that can be seen in the measurement window on all three pages will be printed double measurement values will only be printed once Further technical specifications as well as battery and paper rolls changes please see separate printer manual NOTE If you want to print measurement results using the HSP580 High Speed Bluetooth Thermal Printer refer to the user manual...

Page 37: ...re available in the analyser and can still be displayed See also chapter 7 8 Last measurement values Page S 37 By pressing the ESC key the analyser returns to Measurement menu 7 8 Last measurement values The analyser offers the possibility to continue working with the last measured values after the end of a measurement Go to the Measurement menu Select Last measured values The measured value windo...

Page 38: ...as urements The second hose on the Delta P connector must be connected for dif ferential measurement Go to the Measurement menu Select Pressure measurement Press OK The Menu Pressure measurement appears If necessary press the Menu Key to change the name A selection list appears Select Modify name A window appears Adapt the name to your needs Press OK The changed name appears in menu Pressure measu...

Page 39: ...sly by using the T1 and T2 connectors Both measured temperatures and the difference between the tempera tures will be displayed Go to the Measurement menu Select Diff Temp Measurement Press OK The menu Diff Temp Measurement appears The temperatures T1 T2 and the difference are displayed NOTE The accuracy of the difference temperature measure ment is guaranteed only on use of the MRU temperature se...

Page 40: ...ured by the instrument is taken into account Assuming the measured gas velocity is representative for the gas flow in a duct the flow rate is calculated as the product of the measured veloc ity and the duct s cross section area which can be inserted accordingly Setting the parameter Before measuring you must enter all parameters for the gas flow meas urement in the menu settings Setup measuring un...

Page 41: ... the documentation of the used Pitot tube Damping T90 s With this parameter you can set the averaging time of the pressure sen sor The unit is the time in seconds needed for a 90 change Calculation Molar mass The molar mass of a gas depends on the gas proportions This will be calculated on the equation 1 Equation 1 molar mass M 0 00001 32 O2 44 CO2 18 H2O 16 CH4 28 N2 O2 oxygen in CO2 carbon dioxi...

Page 42: ... 74172 Neckarsulm 42 78 Gas density The gas density is calculated on the equation 2 Equation 2 gas density p gas density in P abs indicated the absolute pressure in Pa M molar mass in R gas constant amounts T gas gas temperature in Kelvin ...

Page 43: ...ifference in Pa mean value of pressure difference in Pa p density of gas in The geometry of the used Pitot tube will be considered by the pitot fac tor Equation 4 flow velocity with pitot factor K pitot pitot factor Current volume flow The current volume flow is the current flow velocity multiplied by the cross section area Equation 5 volume flow qv mom vmom A qv mom current volume flow in m s vmo...

Page 44: ...tore up to 4 000 different sites New sites can be added in the analyser Modifications can be done us ing an external PC program e g MRU Win NOTE New sites created in the analyser will NOT be transferred back to the computer program When transferring data from the analyser to the computer only measurement data will be transferred identified by the site number that has been assigned to the measureme...

Page 45: ... and the number of the measurements stored all together split in the kind of the measurement is listed Press F2 The Storage menu appears Select Memory info The menu Memory info appears Information on the data storage is listed 8 3 Site administration In the sub menu Sites administration you can view all data of the stored sites create new sites change date of existing sites delete sites NOTE New s...

Page 46: ...ssigned a site number Select the free text lines that you want to edit Press F1 A window appears Enter the desired content If necessary select further free text lines and fill them with content Press F3 The site is stored View sites Go to the Storage menu Select Sites administration Press OK The menu Sites administration appears Each stored site is displayed on a page with the coloured site number...

Page 47: ...NOTE You also have the possibility to search for sites by set ting a search mask See also chapter Searching site Page 47 Searching site You have the possibility to enter certain parameters in order to search for particular sites In the following example we will search for the site that is assigned to John Example Go to the menu Sites administration Press the Menu Key A selection list appears Selec...

Page 48: ...site that is assigned to John Example is displayed If several sites were found the total number is displayed in the header and you can scroll through these found sites Changing sites Go to the Storage menu Select Sites administration Press F2 The menu Sites administration appears Select the site that you want to change Press F2 A bar appears Select the free text lines that you want to change Press...

Page 49: ... administration appears Select the site you want to delete Press F3 A message appears Select continue to delete the site Select abort to retain the site Press OK Depending on the selection the site is deleted or retained Deleting all sites Go to the Storage menu Select Delete all sites Press OK A message appears Select continue to delete all sites Select abort to retain all sites Press OK Dependin...

Page 50: ...ne breaks or sep arator characters by using quotation marks or escape sequences CSV is a simple file format that is widely supported so it is often used to move tabular data between different computer programs for example Mi crosoft Excel or Access that support the format Also other com puter programs offer this type of interface because it is widely spread and easy to use The following functions ...

Page 51: ...6 A2 Z7 A2 Z8 A2 Z9 A3 Z1 A3 Z2 A3 Z3 A3 Z4 A3 Z5 A3 Z6 A3 Z7 A3 Z8 A3 Z9 A4 Z1 A4 Z2 A4 Z3 A4 Z4 A4 Z5 A4 Z6 A4 Z7 A4 Z8 A4 Z9 A5 Z1 A5 Z2 A5 Z3 A5 Z4 A6 Z1 A6 Z2 A6 Z4 A7 Z1 A7 Z4 A8 Z1 Example file with 2 invalid sites 1 with not enough fields and 1 with missing site number A1 Z1 A1 Z2 A1 Z2 A1 Z3 A1 Z4 A1 Z5 A1 Z6 A1 Z7 A1 Z8 A1 Z9 NOTE While importing data from the SD Card to the analyser the...

Page 52: ...andy if you have made some modifications inside the analyser site for example if you have modified the phone number of a customer and this modification needs to be updated in the computer software or if a second analyser needs to have the same site infor mation The File format it s the same as described above Import of Sites Only the file name is different the file name will be ANLxxxxx csv in whi...

Page 53: ...s The created file has a column header with the following information Site number Date Time measuring program name Fuel type CO2max O2reference and all measured values that the analyser can measure as well as the soot numbers Derivate and T Boiler Example Exporting differential pressure measurements The same function as Export of combustion tests only the file name is different The created file ha...

Page 54: ...asurement type appears Select the desired measurement type Press F2 Then you receive first a page with context information to the stored measurement Scroll with the arrow keys by the context in formation of the stored measurements Press F2 Measured values are displayed the measured data of the stored measurement in detail available in 3 measuring value pages as they are defined in the measuring va...

Page 55: ...xecute as described in the chapter site administration Deleting measurements You are able to delete single measurements while they are displayed press the key F3 delete or delete all measurements of a measuring type Go to the Storage menu Select Delete measurements The menu Delete measurements appears Select which measurement type you want to delete Press F2 A message appears Select continue to de...

Page 56: ...d to the SD card During the data export the display reads please wait A write error to SD card is reported by the instrument Make sure that the SD card is not write protected The data are stored as a csv file e g EMI01032 csv on the SD card The filename exists of a sequential number which fixes the device This file is editable on your Notebook PC with a program like e g Microsoft EXCEL or OpenOffi...

Page 57: ...need and want to do so After you have made any changes in the configuration you should switch off the analyser to save all the changes that have been made Next time that you start up the analyser all changes will have been made 9 1 Service calibration menu The Maintenance adjustment menu is secured with a Pin Code to pro tect it against unauthorized users If you enter a wrong pin code you will be ...

Page 58: ...e Extras menu Select Default settings Press OK A window appears Select No to not reset the default settings Select Yes to reset the analyser to default settings Press OK Depending on the selection the analyser is reset to the default settings or not O2 reference values are set to default Settings LCD brightness 50 LED condensate trap 75 Helpful hints ON Printer type MRU Printout variant Short Keyb...

Page 59: ...sors and also other parameters In case of a defect contact the MRU service department The MRU ser vice technician will ask you about these values or he will ask you to send them by fax or email Go to the Extras menu Select Service values Press OK The menu Service values appears Press F1 to switch the gas pump function test on or off Press F2 to switch the function test of the purge pump on or off ...

Page 60: ...ilt in draft sen sor and is observed for a period of 10 seconds Based on the decrease of pressure the leakiness of the system will be determined Operation Connect the hose to the analyser as shown in the figure Go to the Extras menu Select Leak proof test Press OK The menu Leak proof test appears Ensure that the hose is plugged in Pressure is established A 10 second test is running A message appea...

Page 61: ...external parts the OPTIMA 7 Combustion Analyzer has to be checked in a service department worldwide service departments see www mru eu 9 5 Contents SD card Go to the menu Extras Select Contents SD card Press OK The menu Contents SD card appears The files stored on the SD card are displayed Select a file If necessary press F1 to delete the file If necessary press F2 to refresh the file If necessary...

Page 62: ... 78 9 6 Contents Analyzer information Here you will find information about the analyser and the installed op tions Go to the Extras menu Select Device info The menu Device info appears Press F2 The menu Options list appears The installed options are displayed ...

Page 63: ...note that correct operation of the analyser is only ensured if the sensors are adjusted regularly Depending on the intensity of use the sensors have to be adjusted calibrated 1 2 times a year 10 2 Service messages A message is displayed after 1 000 hours or 11 months If the analyser has the optional guarantee extension of 60 months this will be shown in another window Confirm these messages with F...

Page 64: ...54 mm 4 3x 8 8 x2 04 in Housing material PA6 IP protection with protection cap IP30 Max suction range gas pump 150 hPa gas flow typ 60 l h Measured values English Specifications on the Measurement accuracy Electrochemical Sensor O2 Long Life Measuring Range 0 21 Vol Resolution standard Resolution option 0 1 0 01 Abs Accuracy 0 2 Vol Response Time T90 20s Years expected lifetime air 3 CO2 tolerance...

Page 65: ...erload Range 5000 ppm Resolution 1 ppm Accuracy abs reading 5ppm 5 0 1000 ppm 10 1000 ppm Response Time T90 30s Electrochemical Sensor NO2 Nom Measuring Range 0 200 ppm Overload Range 1000 ppm Resolution 1 ppm Accuracy abs reading 5ppm 5 0 200 ppm 10 200 ppm Response Time T90 40s Option NO2 low Measuring Range 0 300 ppm Resolution 0 1 ppm Accuracy 4 ppm 5 Electrochemical Sensor H2 Nom Measuring Ra...

Page 66: ...hemical Sensor on standard position depending on configura tion H2S Nom Measuring Range 0 2000 ppm Overload Range 5000 ppm Resolution 1 ppm Accuracy abs reading 10 ppm 10 Response Time T90 40s Non dispersive Infrared Measurement NDIR CO2 Nom Measuring Range 0 100 Vol Resolution 0 01 Vol Accuracy abs reading 0 3 Vol 3 Response Time T90 35 s Non dispersive Infrared Measurement NDIR CH4 Nominaler Mes...

Page 67: ...e TA Measuring Range with high grade steel probe pipe 0 800 C Measuring range with Inconel probe pipe 0 1100 C Accuracy abs reading 2 C 0 5 Ambient temperature using MRU sensor Tl Measuring Range with ambi ent temperature probe 0 100 C Accuracy 1 C Accuracy abs reading Differential Pressure Measuring Range 300 hPa Accuracy abs reading 0 03 hPa 1 Velocity Gas Temperature 20 C 800 C Total pressure 7...

Page 68: ...0m3 s Resolution 0 1 11 2 Analysis and calculations Calculated values Air ratio Measuring Range 1 20 Resolution 0 01 Excess Air Measuring Range 0 999 Resolution 1 Dew point Unit C Measuring Range 0 100 C Resolution 0 1 Losses qA Measuring Range 0 99 9 Resolution 0 1 Efficiency Measuring Range 0 120 N2 Background Unit Vol Measuring Range 0 100 Resolution 0 1 NOx NO NO2 Unit ppm mg m3 NO2 Resolution...

Page 69: ...0 01 Measurement values available as mg Nm3 O2 Ref mg kWh NOx mg Nm3 NO2 Since firmware release V1 42 00 the OPTIMA7 Biogas analyser calcu lates the gross and net calorific value gcv and ncv of the measured gas mixture The measured values are ncv MJ m ncv MJ kg gcv MJ m gcv MJ kg The calculation of the the 2 gcv values is with presumption that CH4 is the significant combustable part of the gas mix...

Page 70: ...Flue gas Thermocou ple C CO ppm CO2 Pressure hPa Available conversions of CO CO ppm related to on 0 rest O2 undiluted X ppm related to on fuel type dependent O2 reference value X mg m3 X mg kWh X mg MJ X mg m3 on fuel type de pendent O2 reference value X Continuously calculated values Unit Air ratio Dew point C CO CO2 ratio ...

Page 71: ...the text input the following window will pop up 11 4 Asking user for decision The analyser requires confirmation of the user decision for various func tions Select a letter number or sign F1 delete The letter left of the cursor will be deleted F2 insert Selected letter or number will be inserted F3 over write Selected letter or number will over write the current letter or number ESC Abort the wind...

Page 72: ...serial number___________________ Performing and checking the update Prepare SD Card You need the latest file All_1083 fwb In case you get it in a zip archive you have to extract it before usage This file contains all firmware types and the analyser will extract the correct type out of this file automati cally How do I carry out the update NOTE The display becomes dark while the update starts Pleas...

Page 73: ...r will reboot with the new firmware Confirm the message New Firmware installed with OK Switch off the device again after the successful update The next time the analyser is switched on all new functions will be available How do I identify if the update was successful Go to the Extras menu Select Device info The menu Device info appears In the first line the new firmware version must be displayed I...

Page 74: ...USER MANUAL OPTIMA7 Biogas MRU GmbH D 74172 Neckarsulm 74 78 Where can I get help if the update was not successful Please contact your responsible sales representative or via email info mru de ...

Page 75: ...vice cannot be switched on or does not react after being switched on Battery discharge Connect the device to the line power in order to charge the battery Measurement with out exact tempera ture values Temperature indica tion C Thermo element de fective balancing net work interrupted or not connected Call our after sales service Remove probe from the gas duct and con densate from the probe tube Wr...

Page 76: ...y in side the device No filter effects Sensor failure Pump failure Fine filters are wet and or dirty Check filters more often Renew them if nec essary white OK Brown black re newal Wrong measuring values Cover intermediary unit plexiglass tube and lock ing pieces are not tightly fixed respectively screwed Check tightness with every filter change ...

Page 77: ...USER MANUAL OPTIMA 7 Biogas MRU GmbH D 74172 Neckarsulm 77 78 12 Declaration of conformity ...

Page 78: ...USER MANUAL OPTIMA7 Biogas MRU GmbH D 74172 Neckarsulm 78 78 ...

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