Atal AT 505 User manual

USER’S MANUAL
Gas Analyser AT 505
software version 1.11 onwards
Last updated: April 26. 2023
The right is reserved to change the Manual
ATAL s.r.o., Lesní 47, 390 01 Tábor - Horky, Czech Republic
Phone: [phone]
e-mail: [e-mail]; web: http://www.atal.cz
GAS_MANUAL_EN.DOC

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CONTENTS
CHAP. I - GAS ANALYSER ....................................................................................................................................................................................................................................................3
1. INTRODUCTION ...................................................................................................................................................................................................................................................3
2. SAFETY PRECAUTIONS ......................................................................................................................................................................................................................................3
3. WASTE DISPOSAL ...............................................................................................................................................................................................................................................3
4. DESCRIPTION OF APPARATUS ..........................................................................................................................................................................................................................3
4.1 FRONT PANEL......................................................................................................................................................................................................................................................4
4.2 BACK PANEL ........................................................................................................................................................................................................................................................5
5. CONSTRUCTION OF APPARATUS .....................................................................................................................................................................................................................5
5.1 MECHANICAL PART.............................................................................................................................................................................................................................................5
5.2 ELECTRONIC PART .............................................................................................................................................................................................................................................5
5.3 PNEUMATIC PART ...............................................................................................................................................................................................................................................5
6. MEASURING PRINCIPLE .....................................................................................................................................................................................................................................6
7. SOFTWARE INSTALLATION ................................................................................................................................................................................................................................7
7.1 DESCRIPTION OF INSTALLATION CD................................................................................................................................................................................................................7
7.2 INSTALLATION AND UNINSTALLATION (REMOVAL) OF THE GAS ANALYSER PROGRAM ..........................................................................................................................7
7.2.1 FIRST INSTALLATION ..........................................................................................................................................................................................................................................7
7.2.2 UNINSTALLATION (REMOVAL) OF THE GAS ANALYSER PROGRAM .............................................................................................................................................................9
8. PROGRAM CONFIGURATION ...........................................................................................................................................................................................................................11
8.1 SCREENS OF CONFIGURATION.......................................................................................................................................................................................................................11
8.1.1 CONFIGURATION SCREEN – STATION ...........................................................................................................................................................................................................11
8.1.2 CONFIGURATION SCREEN – GAS ANALYSER ...............................................................................................................................................................................................11
8.1.3 CONFIGURATION SCREEN – SPECIAL ............................................................................................................................................................................................................12
8.1.4 CONFIGURATION SCREEN – TIME ..................................................................................................................................................................................................................12
8.1.5 CONFIGURATION SCREEN – INTERFACE.......................................................................................................................................................................................................12
8.1.6 PROGRAM CONFIGURATION WIZARD ............................................................................................................................................................................................................13
8.1.7 DETECTION OF COMMUNICATION PORTS .....................................................................................................................................................................................................15
8.2 PROGRAM CONTROL........................................................................................................................................................................................................................................16
9. DEVICE SWITCH-ON AND SOFTWARE START-UP .........................................................................................................................................................................................16
9.1 CONNECTION OF AT 505 TO THE PERSONAL COMPUTER (MFS LIGHT) ....................................................................................................................................................17
9.2 PROGRAM START-UP .......................................................................................................................................................................................................................................19
9.3 DEVICE ACTIVITIES AFTER PROGRAM START-UP ........................................................................................................................................................................................19
9.3.1 DEVICE INITIALISATION AND OPTICAL BENCH HEAT-UP .............................................................................................................................................................................19
9.3.2 LEAKAGE TEST ..................................................................................................................................................................................................................................................19
9.3.3 OPTICAL BENCH RESET ...................................................................................................................................................................................................................................20
10. MAIN SCREEN DESCRIPTION...........................................................................................................................................................................................................................21
10.1 GAS ANALYSER ONLY AVAILABLE WITH MULTI-DIAG SCOPE .....................................................................................................................................................................21
10.2 GAS ANALYSER - IS NOT AVAILABLE MULTI-DIAG SCOPE...........................................................................................................................................................................22
11. INITIAL ANALYSER SETUP................................................................................................................................................................................................................................22
12. ENGINE SPEED MEASURING ...........................................................................................................................................................................................................................23
12.1 UNIVERSAL SPEED SENSOR ...........................................................................................................................................................................................................................23
12.1.1 MEASUREMENT PRINCIPLE .............................................................................................................................................................................................................................24
12.1.2 RECOMMENDATIONS........................................................................................................................................................................................................................................24
12.2 MULTI-DIAG MOTORTESTER............................................................................................................................................................................................................................24
12.3 MULTI-DIAG MINITESTER .................................................................................................................................................................................................................................24
12.4 MULTI-DIAG ........................................................................................................................................................................................................................................................24
13. OIL TEMPERATURE MEASURING ....................................................................................................................................................................................................................24
13.1 OIL TEMPERATURE SENSOR ...........................................................................................................................................................................................................................25
13.2 UNIVERSAL SPEED SENSOR ...........................................................................................................................................................................................................................25
13.3 MULTI-DIAG MOTORTESTER............................................................................................................................................................................................................................25
13.4 MULTI-DIAG MINITESTER .................................................................................................................................................................................................................................25
13.5 MULTI-DIAG ........................................................................................................................................................................................................................................................25
14. DWELL ANGLE MEASURING.............................................................................................................................................................................................................................25
15. IGNITION ADVANCE MEASURING ....................................................................................................................................................................................................................26
16. PRINTING VALUES.............................................................................................................................................................................................................................................26
17. EMISSION TEST .................................................................................................................................................................................................................................................27
18. CHANGE OF THE COMPANY LOGO IN THE PROTOCOL ...............................................................................................................................................................................27
19. INFORMATION WITH F1 ....................................................................................................................................................................................................................................28
20. RECORD OF MEASURED DATA FOR POTENTIAL CHECK.............................................................................................................................................................................29
21. SWITCHOVER TO ANOTHER APPLICATION....................................................................................................................................................................................................29
22. STAND BY MODE ...............................................................................................................................................................................................................................................29
23. ERROR ALERTS BY THE ANALYSER ...............................................................................................................................................................................................................30
24. MAINTENANCE...................................................................................................................................................................................................................................................31
24.1 MEASURES TO AVOID WATER CONDENSATION IN OPTICAL BENCH.........................................................................................................................................................31
24.2 COARSE FILTER INSPECTION AND CLEANING..............................................................................................................................................................................................32
24.3 FINE FILTER INSPECTION AND RENEWAL .....................................................................................................................................................................................................33
24.4 OXYGEN SENSOR CHECK ................................................................................................................................................................................................................................33
25. TECHNICAL SPECIFICATION ............................................................................................................................................................................................................................33
25.1 FUNCTION PROPERTIES ..................................................................................................................................................................................................................................33
25.2 GENERAL INFORMATION..................................................................................................................................................................................................................................34
25.3 HOST COMPUTER REQUIREMENTS................................................................................................................................................................................................................34
25.4 ENVIRONMENTAL CONDITIONS.......................................................................................................................................................................................................................34
25.5 STORAGE AND TRANSPORT............................................................................................................................................................................................................................35
26. ASSEMBLY .........................................................................................................................................................................................................................................................35
26.1 GAS ANALYSER .................................................................................................................................................................................................................................................35
26.2 GAS ANALYSER ACCESSORIES ......................................................................................................................................................................................................................35
27. CALIBRATION AND SERVICE............................................................................................................................................................................................................................35
CHAP. II - INSTALLATION OF A NEW HARDWARE DEVICE (HW) ...................................................................................................................................................................................36
1. INSTALLATION OF ATAL DEVICES – GENERAL..............................................................................................................................................................................................36
2. INSTALLATION OF THE USB-RS232 CONVERTER .........................................................................................................................................................................................36
2.1 INSTALLATION OF DRIVERS FOR THE USB-RS 232 CONVERTER ...............................................................................................................................................................36
2.2 ADAPTER USB-RS232 FINAL INSTALLATION..................................................................................................................................................................................................38
CHAP. III - REMOTE CONTROL..........................................................................................................................................................................................................................................40
1. INTRODUCTION .................................................................................................................................................................................................................................................40
2. INSTALLATION AND UNINSTALLATION (REMOVAL) OF REMOTE CONTROL PROGRAM ..........................................................................................................................40
2.1 INSTALLATION OF REMOTE CONTROL...........................................................................................................................................................................................................40
2.2 UNINSTALLATION (REMOVAL) OF THE REMOTE CONTROL PROGRAM .....................................................................................................................................................42
2.3 INSTALLATION OF THE REMOTE CONTROL RECEIVER ...............................................................................................................................................................................43
2.3.1 INSTALLATION OF DRIVERS FOR THE RECEIVER.........................................................................................................................................................................................44
2.3.2 RC RECEIVER FINAL INSTALLATION ...............................................................................................................................................................................................................45
3. STARTING REMOTE CONTROL PROGRAM.....................................................................................................................................................................................................47
3.1 REMOTE CONTROL CONFIGURATION ............................................................................................................................................................................................................47
3.1.1 SETTING THE COMMUNICATION PORT OF THE REMOTE CONTROL RECEIVER ......................................................................................................................................47
3.1.2 SETTING THE ADDRESS OF THE REMOTE CONTROL TRANSMITTER........................................................................................................................................................49
3.2 REMOTE CONTROL TESTING...........................................................................................................................................................................................................................49
4. INFORMATION ABOUT SOFTWARE VERSION ................................................................................................................................................................................................50

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Chap. I - Gas Analyser
1. INTRODUCTION
•The gas analyser is a PC based four (plus optional NOx) gas analyser.
•The gas analyser is intended for the maintenance and inspection of spark ignition engines.
•Gas data is transmitted from the gas analyser to the PC (or Laptop) for processing and printing.
•The gas analyser is part of the modular Multi-Diag system.
2. SAFETY PRECAUTIONS
a) The apparatus meets requirements for operation according to the EN 61010-1.
b) The device shall be powered using only the power supply provided.
c) Removing covers from the apparatus is not allowed, as this would cause an electric shock risk.
d) The device must be operated higher than the withdrawal probe inlet due to the risk of the analyser
becoming filled with a large quantity of water, coming from condensate in the exhaust system.
e) The device is intended for operation in the vertical position only. It should in no case be tilted
even when switched off. The reason is the dangeur that moisture condensed within the rough filter F1
can flood the sensitive elements within the analyser.
f) For emission control working sites and for service working sites, relevant safety regulations should be
applied. The operator must organise appropriate safety training courses for service staff of the measuring
apparatus. This can include training for working on vehicles while the engine is running.
Therefore, safety precautions must be observed according to the manufacturers of the car and of the
engine, that are valid for testing the engine while it is running. Sufficient ventilation must be provided for
exhaust fumes and outlet gases from the analyser.
g) The device should be protected against ambient water in any form (rain, sprayed water, etc.)
3. WASTE DISPOSAL
A NOTE ABOUT RECYCLING:
This product's packaging materials are recyclable and can be reused. Please dispose of
any materials in accordance with the local recycling regulations.
When discarding the unit, comply with local rules or regulations.
Batteries should never be thrown away or incinerated, but disposed of in accordance with
the local regulations concerning chemical waste.
This product and the accessories packed to
gether constitute the applicable product
according to the WEEE directive, except batteries.
4. DESCRIPTION OF APPARATUS
The exhaust gas analyser is intended for the testing of exhaust gas emissions from spark ignition engines
The AT505 gas analyser is approved for Car and Light Commercial Vehicle Testing. This includes vehicles in the
following classes:
•Class III - 3 wheeled vehicles not more than 450 kg unladen weight (excluding motor bicycles with side
cars).
•Class IV - Cars, including 3 wheeled vehicles more than 450 kg unladen weight, Taxis, Minibuses and
Ambulances up to 12 passenger seats, Goods Vehicles not exceeding to 3000 kg Design Gross Weight
(DGW), Motor Caravans and Dual Purpose Vehicles.
•Class VII - Goods Vehicles over 3000 kg up to and including 3500 kg DGW. If a vehicle is presented
with a manufacturer’s plate and a ‘Ministry plate’ the weights to be used are those on the ‘Ministry
plate’.
•More detailed definitions are given in the MoT Testing Guide provided by the Vehicle & Operator
Services Agency (VOSA).

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The gas analyser is a four-part (optional five-part) analyser of exhaust gases, to be used for measurement and
adjustment of petrol, LPG, and CNG engines, and for controlling emissions of those engines according to relevant
national regulations. It can measure HC, CO, CO2, O2, and NOXconcentrations, and calculate COcor and the
coefficient of air redundancy λfrom those values. Furthermore, it measures engine speed and oil temperature for
use during statutory MoT test procedures. The measured data can be printed by the printer as partial
measurements or as an MoT test certificate.
Mechanical construction is described in Chap. I - 5.
4.1 FRONT PANEL
Fig. 1 – View of the front panel of the Gas Analyser
1 - Status LED:
OFF = the power supply is not connected, or the Gas Analyser AT505 software on the PC is not running
and communicating with the Analyser.
Red = the power supply is connected, but the communication cable is not connected to the PC or the PC
is not switched on
Orange = the analyser is ON, but inactive, heating up may be in process or it may be indicating a fault
Green = the analyser is ready to use
2 - Coarse filter (F1)
3 - Nitrogen sensor (NOx) (optional)
4 - Fine filter (F2)
5 - Oxygen sensor (O2)
6 - Exhaust gas outlet
7 - Condensate outlet
8 - Calibration gas inlet
9 - Exhaust gas intake

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4.2 BACK PANEL
1 - Connector (Jack) for the power supply plug
2 - Connector for the computer serial cable
Fig. 2 – View of the back panel of the Gas Analyser
5. CONSTRUCTION OF APPARATUS
5.1 MECHANICAL PART
The device frame is fabricated from steel with a zinc finish, and is coated with a two-compound acrylic paint. The
device case is also fabricated from steel with a zinc protective finish, and sprayed with a wear resistant powder
coated paint. The exhaust probe is made of stainless-steel flexible hose.
5.2 ELECTRONIC PART
The internal electronic system and all clamps, connectors and sensors accessible from the outside are
galvanically isolated, any voltages on them do not exceeding safe levels. The electronics consist of a printed
circuit board, the electronic system of the optical testing bench, and the fan. In the case of the extended version
including engine speed and engine temperature measurement, an additional circuit board is included for these
sensors.
5.3 PNEUMATIC PART
This consists of a double membrane pump with two pumping channels. The P1 channel pumps the exhaust gas
to be measured from the exhaust probe to the optical bench and oxygen sensor (or nitrogen sensor NOx), and
the P2 channel continually empties condensate from the rough filter F1.
The solenoid enables zeroing of the measuring apparatus by switching from the exhaust probe to the zero setting
inlet (which draws in surrounding air). The zero setting inlet includes an active carbon filter F4, which decreases
hydrocarbons which may be present in the surrounding air.
The gas sample measured is subject to double filtration before entry to the optical bench. The first filtration stage
is through a rough filter F1, which is made from sintered bronze grain. The second filtration stage is the fine filter
F2, which is made from paper. Inside the apparatus there is safety filter F3 that protects the solenoid, optics of
the measuring bench, and the oxygen sensor (or nitrogen sensor NOx) in case of incorrect fitting or failure of the
external filters.
The apparatus is also equipped with a calibration inlet CAL, which is used for the connection of the calibration
gas. The pneumatics include a vacuum switch, which is used for indication of decreased flow through the exhaust
probe from taking in water or blockage, this is also used for the probe leakage test.
The device is equipped with automatic compensation for ambient air pressure.

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Fig. 3 – Scheme of pneumatic part
1- Exhaust gas intake
10- Vacuum switch
2- Coarse filter (F1)
11- Condensate pump (P2)
3- Fine filter (F2)
12- Main pump (P1) – measured gas
4- Condensate drain outlet
13- Pressure reduction – inlet of calibration gas with pressure reduction
5- Exhaust gas outlet
14- Check valve
6- Air intake (for zeroing)
15- Optical bench
7- Activated carbon filter (F4)
16- Oxygen sensor (O2)
8- Fine safety filter (F3)
17- Nitrogen sensor NOx (optional)
9- Solenoid
cal- Calibration inlet
6. MEASURING PRINCIPLE
The measuring principle for CO, HC, CO2, O2, and NOXcomplies to the requirements OIML R 99 class 0. In the
case of CO, HC, and CO2, it is through non-disperse light attenuation measuring in an infra-red area (NDIR).
Concentration of the three gases is measured in separate measuring cells. Signals obtained from the detectors
are then compared with a reference signal. Results are compensated for temperature and barometric pressure
changes.
O2 and NOXconcentration measurement is done with electro-chemical sensors. The service life of these sensors
is limited, and depends on the duration and level of concentrations, particularly of HC and Pb (from lead petrol
detergents), which they are exposed to. Normally the service life should be at least six months. The Gas Analyser
automatically monitors the sensors and reports when have require renewal.
A diagram of lambda dependency of individual gas compounds in exhaust gases is shown in Fig. 4. The richness
of the fuel mixture is expressed by air redundancy coefficient λ. This diagram illustrates model emission behaviour
of a non-catalyst engine.

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Fig. 4 – Diagram of dependency of concentrations of individual gas compounds in exhaust gases
(+ rich mixture, - weak mixture)
7. SOFTWARE INSTALLATION
7.1 DESCRIPTION OF INSTALLATION CD
The included CD contains all the necessary software for the use of Gas Analyser system.
Insert the CD in your CD-ROM drive. If the CD does not run automatically, run the autorun.exe program which
you will find on the CD.
7.2 INSTALLATION AND UNINSTALLATION (REMOVAL) OF THE GAS ANALYSER PROGRAM
7.2.1 FIRST INSTALLATION
If you install the program on a computer with Windows 2000 / XP / Vista operation system, log in as system
administrator.
Click on the menu item Gas Analyser – Installation –(see Fig. 5).
Note 1:
If the CD does not run automatically, run the
autorun.exe program which you will find in the root
directory on the CD.
The Gas Analyser program installation is intuitive
–
you should follow the Installation Wizard
displayed on the PC screen.
Note 2:
The default language of the Wizard is English
but it can correspond to your language version
of Windows.
Fig. 5 – Menu for Gas Analyser installation (the picture of version 1.11 is for illustration, your version may be different.)

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The following set of images comes from the installation wizard for the Windows XP operation system. The
Windows Vista wizard is similar:
Fig.
6 – The installation can be interrupted at any time during the setup
by clicking on
“Cancel”
Fig.
7 – Click “Next” to proceed with the installation

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The installation may take several seconds. Click on
“Finish” to complete the installation.
The installation of drivers for the RS232-USB
converter starts after its completion (see Chap. I - 2)
Fig.
8 – Click on "Finish” to complete the installation
7.2.2 UNINSTALLATION (REMOVAL) OF THE GAS ANALYSER PROGRAM
Note:
The default language of the Wizard is English but it can correspond to your language version of Windows.
To uninstall the program open the installation dialog box. There are two ways of doing this:
a) Click on Add or Remove Programs in the Control Panel. Then click on “Remove” (Fig. 9). Confirm
this choice in the displayed dialog box (see Fig. 10) and the program will be removed promptly and without
further warning.
Note:
Open the Add or Remove Programs by clicking Start, Control Panel and double-clicking Add or Remove
Programs.

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Fig.
9 – Removing Gas Analyser program by selecting the Add or
Remove Programs in Control Panel
Fig.
10 – Confirm that you really want to remove the program
b) Click on the menu item Gas Analyser – Installation –see Fig. 5 (Autorun.exe on the installation CD
must be launched). Then select "Remove” (Fig. 11). Confirm your choice in the displayed dialog box (Fig. 12) and
the Installation Wizard (Fig. 13) will immediately remove the program.
Fig.
11 – After you have clicked on “Remove” and confirmed your
choice, the removal of the program will start
Fig.
12 – To proceed with the removal confirm that you really wish to
remove the program
Fig.
13 – Removal may take several seconds. Click on “Finish” to complete the removal

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8. PROGRAM CONFIGURATION
In order to be able to perform the program configuration under Windows 2000/XP/Vista you need to have
the administrator access rights.
Before running the configuration program you should:
a) exit the Gas Analyser program
b) install the USB to RS 232 converter
c) connect correctly the communication cable and power supply of the analyser.
The configuration utility is started by clicking on the Gas Analyser configuration (see Fig. 14)
Fig. 14 – Starting the configuration utility for analyser setup
8.1 SCREENS OF CONFIGURATION
8.1.1 CONFIGURATION SCREEN – STATION
See Fig. 15 - Information about the emission control test station
8.1.2 CONFIGURATION SCREEN – GAS ANALYSER
See Fig. 16 - Entering the data necessary for measuring the emission test
Fig. 15 – The configuration screen (Station) - Information about the
emission control test station
Fig. 16 – The configuration screen (Gas Analyser) where you can
change the necessary values
Note to Fig. 16:
1- Registration button - By pressing this button you register the entered serial number with the PC počítače -
see Fig. 17. (Analyser serial number which can be found on the underside of the analyser)
2- Gas Analyser communication port setting
3- Speed / Temperature Sensor communication port setting
4- Language selection

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5- Time in minutes for the device to enter standby mode (5 to 120 minutes)
6- Screen resolution settings
7- Colour and text settings
8- Apply button - To save the set values in the configuration program, press this button
9- OK button - To save the set values and exit the configuration program, press this button
10 - Cancel button - To exit the configuration program without saving the set values, press this button
11 - Wizard button - Starts the Configuration Wizard – for details see Chap. I - 8.1.6
Note for points 2 and 3:
If the automatic scan fails the user can enter port numbers manually – for details see Chap. I - 8.1.7
Fig. 17 – Registered serial number on a computer
8.1.3 CONFIGURATION SCREEN – SPECIAL
See Fig. 18 – For authorised technician only (for service and calibration)
8.1.4 CONFIGURATION SCREEN – TIME
See Fig. 19 – For adjusting time of day
Fig. 18 – For authorized person only Fig. 19 – The configuration screen (Time) where you can change
the setting of the current time
8.1.5 CONFIGURATION SCREEN – INTERFACE
See Fig. 20 – For enabling or disabling the usage of peripheral equipment.

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Fig. 20 – The configuration screen (Interface) - for enabling or
disabling the usage of peripheral equipment
8.1.6 PROGRAM CONFIGURATION WIZARD
The Wizard (see Fig. 16, pos. 11) starts automatically when the configuration utility is ran for the first time.
Fig. 21 – Connection of the Gas Analyser to the PC and to the power
supply
Fig. 22 – Communication ports setup for the Gas Analyser and the
Speed / Temperature Sensor module (performed by the user)
Note to Fig. 22:
When you click the arrow in "comm port", a list of available communication ports (see Fig. 23)
Fig. 23 – The list of available communication ports

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Fig. 24 – Detection of the Gas Analyser serial number (performed by
the device)
Fig. 25 – The detected serial number is displayed (the user can
change it according to the label attached at the underside of the
analysed)
Fig. 26 – Selecting the language Fig. 27 – Setting the monitor resolution
Fig. 28 – Option enabling or disabling the usage of Universal Speed
/ Temperature Sensor (Yes/No)
Fig. 29 – Option enabling or disabling the usage of Multi-Diag
Motortester or Minitester (Yes/No)

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Fig. 30 – Option of enabling or disabling the usage of Multi-Diag
(Yes/No)
Fig. 31 – To save the file parameters and wizard the end, click the
OK button
8.1.7 DETECTION OF COMMUNICATION PORTS
Launch the “FindPort.exe” program which can be found on the installation CD or which can be downloaded from
the website www.atal.cz/download/FindPort.exe
The program displays all available serial ports (see Fig. 32). Once the testing device is connected to a serial port,
its description and status are displayed on the screen (see Fig. 33).
1- List of available ports
2- Port with the testing device
Fig. 32 – Display of the free serial ports

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Fig. 33 – The status of the communication ports after connection of the testing device to a computer serial port connector
The status of the communication cables is as follows: green = OK
red = no connection
Note: Some devices are functional with only the Rx-Tx connections made (e.g. Opacimeter AT605).
Remove the testing device and plug in the analyser. It is important to set the detected port number for the
analyser in the Configuration Program (for starting the program see Chap. I - 8.1.1 and Fig. 16 - note 2) or in
the Program Configuration Wizard (see Chap. I - 8.1.6, Fig. 22).
8.2 PROGRAM CONTROL
After successful program installation, a new Multi-Diag program group is created (see Fig. 34), or updated if it
already exists. A Gas analyser AT505 icon (see Fig. 35) is placed on the desktop.
Fig. 34 – Multi-Diag program group (Start \ Programs \ ... ) Fig. 35 – Gas Analyser program icon is placed on the desktop
9. DEVICE SWITCH-ON AND SOFTWARE START-UP
Before you start the software, the Gas Analyser should be connected to the power supply and computer and it
should be correctly configured. The Speed Sensor should also be connected to the computer and configured. If
there is a problem with communication to either of the devices, the software will notify the operator with a fault
message and it will not be able to carry out any test.

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9.1 CONNECTION OF AT 505 TO THE PERSONAL COMPUTER (MFS LIGHT)
13
11
12
7
2.1
2.1
2.2
3.1
2.2
1
9
5
3
4
4.1
7.1
6
6.1
6.2
9.1
9.2
9.1
10
13.1
X1.2
X2.1
10.1
8.1
X1.1
15.1
X3.1
6.2
2.2
9.2
14.1
15.1
10.1
3
2
2
5
12.1
11.1
4.2
3.1
14
15
17
16
18
16.1
3
7
7
8
5
7
12.1
11.1
7.1
8.2
Fig. 36 – Connection of AT505 and accessories

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Note to Fig. 36
1 - MFS Light Stand (MFS=Multi Function Station)
2 - LCD Monitor 19”
2.1 LCD power supply cable (230V-AC)
2.2 VGA cable (analog signal D-sub)
3 - Gas Analyser Module AT505
3.1 AT505 communication cable ................................................... connect to COM1
4 - AT505 Power supply adapter
4.1 Power supply cable (230V-AC)
4.2 Power supply cable (16V-DC)
5 - Box PC
6 - Box PC Power supply adapter
6.1 Power supply cable (230V-AC)
6.2 Power supply cable (19V-DC)
7 - Universal RPM & Temperature sensor (AT113)
7.1 AT113 communication cable ................................................... connect to COM2
8 - AT113 Power supply adapter
8.1 Power supply cable (230V-AC)
8.2 Power supply cable (12V-DC)
9 - HP Printer (Ink or Laser)
9.1 Power supply cable (230V-AC)
9.2 Print USB communication cable............................................... connect to USB2
10 - USB HUB (connection to USB Keyboard and USB mouse)
10.1Cable USB 2.0 .......................................................................... connect to USB1
11 - Oil temperature sensor
11.1Oil temperature sensor connector
12 - RPM measuring cable
12.1RPM measuring cable connector
13 - Master TFR infosec
13.1Power supply cable (230V-AC)
14 - USB Keyboard
14.2Keyboard USB communication cable........................ connect to pos.10 (USB1)
15 Infrared remote control AT 157 - receiver
15.1Remote control USB communication cable.............................. connect to USB4
16 - Button ON/OFF
16.1Button ON/OFF communication cable
17 - USB Mouse
17.2Mouse USB communication cable ............................ connect to pos.10 (USB1)
18 - Remote control - sender
------- OPTION -------------------------------------------------------------------------------------------------------------------------------
X1 - Opacimeter AT605
X1.1.....AT605 Power supply cable (230V-AC)
X1.2.....AT605 communication cable ............................................. connect to COM3
X2 - Multi-Diag Scope
X2.1..... Multi-Diag Scope................................................................ connect to COM4
X3 - Multi-Diag
X3.1..... VCI (Vehicle Interface Communication) ............................. connect to USB3
Warning: All connectors should be connected and disconnected with care and without force!

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9.2 PROGRAM START-UP
If everything is connected and configured properly, you can start the program. The program can be started by
clicking on the Gas Analyser AT505 icon on the desktop of the screen (see Fig. 35) or on the Gas Analyser
AT505 item from the “Start\Programs”program group (see Fig. 34).
9.3 DEVICE ACTIVITIES AFTER PROGRAM START-UP
9.3.1 DEVICE INITIALISATION AND OPTICAL BENCH HEAT-UP
After start-up, the initialisation of measuring devices and optical bench heat-up will take place (see Fig. 37). Until
the bench is heated-up to its operating temperature, a warming up message will flash in the info box (see pos.1 -
Fig. 38).
Fig. 37 – Initialisation of measuring devices Fig. 38 – Test bench heat-up
9.3.2 LEAKAGE TEST
As soon as the optical bench is warmed up to the required temperature, the leakage test will be carried out.
Before the test is started, the probe should be removed from the exhaust and the red seal should be fitted.
Request for performing tightness test is displayed automatically once a day after turning on the programme. For
the first 14 days after the last tightness test, the user is given the option to skip the test (it is recommended to run
it). After more than 14 days, the user no longer has the option and must perform the test.
Fit the seal on the end of the exhaust probe and
click the OK button.
Fig. 39 – Leakage test – First step

Chap. I - Gas Analyser
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The device will automatically create vacuum in the
withdrawal system and monitor for pressure drop
caused by any leaks. If the test is successful, a
notification is displayed prompting the removal of
the exhaust probe seal.
The test takes several minutes.
Fig. 40 – Running Leakage test – Self measurement
Remove the seal from the exhaust probe and
click the OK button.
Fig. 41 – Leakage test – positive test
If the leakage test is not successful for any reason
(e.g. filter leakage), it is signalled as a fault and
gas testing will be disabled. The fault should be
corrected (e.g. you may replace a damaged filter).
After the leak has been fixed, you will have to
repeat the leakage test.
Fig. 42 – Leakage test – negative test
9.3.3 OPTICAL BENCH RESET
This is executed automatically when the program starts. When the analyser is on it carries out a reset at intervals
of 15 to 30 minutes, so that the required measurement accuracy is maintained. Resetting is not carried out in the
course of a measurement.
During resetting air is drawn through a carbon filter to eliminate any hydrocarbons which may be present.