Koeng KEG-500 User manual

KOENG Co., Ltd. 1302, DIGITAL EMPIRE, 1130, BEOMAN-RO, GEUMCHEON-GU, SEOUL, KOREA
Tel: [phone] / Fax: [phone] / [e-mail]
AUTOMOTIVE GAS ANALYZER
KEG-500
OPERATION MANUAL

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Notes for User
To use this analyzer with safety and effectiveness, please read this
manual before usage.
This manual applies to the product model KEG-500.
1. This manual should be referred with regard to the product design and
safety assurance of the configuration.
2. For the purpose of safe confirmation, this manual should be provided to
the end user at the same time with the supply of the product.
3. Please use only in well-ventilated place.
4. This product should not be washed/polished by volatile or toxic
chemical materials like thinner.
5. Please don't use the printer until the printing paper is prepared.
6. If the equipment is wiped with a piece of moistened gauze, dry the
equipment thoroughly before use. Using the monitor while it is wet may result
in an electric shock.
7. Do not clean the terminals or the AC power inlet. Otherwise, deformation or
corrosion of contacts could occur, which may result in contact failure and/or
malfunction of the equipment.
- The contents of this manual may be changed without notice for the
purpose of functional improvement.
Copyright © KOENG CO., LTD.

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Contents
Chapter 1. Quality Guarantee Provision................................................................ 6
1-1 Guarantee provision........................................................................................................................ 6
1-2 Guarantee claim procedure.......................................................................................................... 6
Chapter 2. Safety Instructions.................................................................................. 7
2-1. Purpose of usage............................................................................................................................ 7
2-2. Usage condition............................................................................................................................... 7
2-3. Caution and warning...................................................................................................................... 7
Chapter 3. Introduction of KEG-500........................................................................ 8
3-1 Specification....................................................................................................................................... 8
3-2 Appearance........................................................................................................................................ 9
3-3. Front view and description........................................................................................................10
3-4 Rear view and description..........................................................................................................12
3-5 Basic accessory..............................................................................................................................14
Chapter 4. Circuits of KEG-500 .............................................................................. 16
4-1 Measuring principal.......................................................................................................................16
4-2 Guiding diagram.............................................................................................................................17
4-3 Electrical circuit diagram.............................................................................................................17
Chapter 5. Installation Methods and Notes......................................................... 18
5-1 Installation.........................................................................................................................................18
5-2 Notes...................................................................................................................................................20
Chapter 6. Measurement Mode............................................................................... 21
6-1. Warming- Up...................................................................................................................................21
Power ON.......................................................................................................................................25
6-2. Stand-By...........................................................................................................................................25
Zero Calibration .............................................................................................................................25

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Self Diagnosis ................................................................................................................................25
6-3. Purge..................................................................................................................................................28
6-4. Zero calibration..............................................................................................................................29
6-5. Measurement..................................................................................................................................31
6-6. Hold....................................................................................................................................................32
6-7. Print....................................................................................................................................................32
Chapter 7. Selection Mode....................................................................................... 34
7-1. Key functions..................................................................................................................................34
7-2. Leak test...........................................................................................................................................34
7-3. Remaining HC test.......................................................................................................................37
7-4. Selection of fuel.............................................................................................................................39
7-5. HCV and OCV setup....................................................................................................................40
7-6. PEF Indication................................................................................................................................41
7-7. Program version indication........................................................................................................41
7-8. Time setup.......................................................................................................................................42
7-9. NOX setup.........................................................................................................................................43
7-10. Standard gas calibration..........................................................................................................44
Chapter 8. Fault diagnosis and troubleshooting............................................... 51
Chapter 9. Various Expendables Maintenance .................................................. 52
9-1 Case separation diagram............................................................................................................52
9-2 Probe filter.........................................................................................................................................53
9-3 Main filter...........................................................................................................................................53
9-4 Printer diagram................................................................................................................................54
9-5 Set of the printing density...........................................................................................................54
9-6 O2 sensor..........................................................................................................................................55
9-7 Dust filter............................................................................................................................................56
9-8 Zero filter(Activated charcoal filter)......................................................................................56
9-9 Power fuse......................................................................................................................................57
Chapter 10. Parts List................................................................................................ 58

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Chapter 1. Quality Guarantee Provision
1-1 Guarantee provision
If the product is handled according to this manual but there occurs a failure with in the
guaranteed period, it will be repaired free of charge by our company. However, the
compensation from the secondary damage and the following cases may not be guaranteed and
repaired without fee:
(1) A damage or fault, which occurs due to mishandling in use and negligence in maintenance
and keeping.
(2) A damage or fault, which originates from a change or reconstruction.
(3) When the parts and consuming materials that naturally wear out become damaged
and needed to be exchanged.
(4) A damage or fault, which originates from an environmental factor such as a fire, earthquake,
storm and flood, or other natural disasters.
(5) A damage or fault, which occurs as the designated pure part is not used.
(6) A mistaken guarantee claim procedure
(for example, absence of type or serial number).
1-2 Guarantee claim procedure
★
Warning
This product is not designed for outdoor installation so that
a damage or fault originated from the outdoor installation
may not be guaranteed.
When you issue a claim against this product in accordance with above provision, please contact
the agent where you purchased:
(1) When you get a fault: Please verify the product by referring Chapter 8. fault diagnosis and
troubleshooting.
(2) Still in bad operation: Please request a repair to the agent where you purchased.
(3) Repair after guaranteed period: After the guaranteed period, the repair cost will be charged.
(4) Repair within guaranteed period: The guaranteed period is for 12 months from the purchase
and within this period the product will be repaired in accordance with our quality guarantee
provision.
(5) For details or questions on the after service, please contact our local agent.
(6) When you contact our local agent, please inform us your product type, serial number, date of
purchasing, and fault conditions in detail.

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Chapter 2. Safety Instructions
2-1. Purpose of usage
This analyzer is a equipment to measure the gas emission density of an automobile enabling to
diagnose the automobile status and its preventive maintenance so that it can provide a function
to prevent the air pollution in advance.
2-2. Usage condition
(1) No emitted/polluted environment.
(2) Less than 1000m in height and less than 85% in relative humidity.
(3) No direct ray of sunlight, vibration and abrupt temperature change.
(4) Well-ventilated place.
(5) It should be setup at least 25cm from the ground surface.
2-3. Caution and warning
(1) General safety requirement
★
Warning
This item includes some critical contents to prevent safety
accident and product damage so that it needs to be read
through and properly understood for correct usage.
①This analyzer should be manipulated only by the trained personnel who well understood the
usage.
②A spot check or periodical check should be executed in accordance with this manual prior to
a measurement.
③The probe should be installed in a place where not affected by a wind.
④If there occurs a unusual case during operation, please stop the operation and contact us for
its inspection and verification.
(2) Warning
①This analyzer is designed for the use of AC110V only or AC220V only. Please verify the
power sources prior to the usage.
②The probe is so hot by emitted gas. Therefore, you need to pay high attention not to be
burned during when you insert or remove.
③During the analysis, please do not stay long in the place to which the gas is being emitted.
④The emitted gas normally includes the CO, which may induce a fatal damage to a human
body, so that it must be used only in well-ventilated place.

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Chapter 3. Introduction of KEG-500
3-1 Specification
KEG –500
Measuring item
CO(carbon monoxide),HC(Hexane), CO2(carbon dioxide),
O2(Oxygen), Lambda(air surplus rate),
AFR, NOX (optional)
Measuring
method
CO, HC, CO2 : NDIR Method
O2, NOx : Electrochemical Cell
Measuring range
CO
0.00 ~ 9.99%
HC
0 ~ 9999 ppm
Resolution
0.01%
1 ppm
Display
4 digit 7segment LED
4 or 5 digit 7segment LED
Measuring range
CO2
0.0 ~ 20.0%
O2
0.00 ~ 25.00 %
Resolution
0.1%
0.01 %
Display
4 digit 7segment LED
4 digit 7segment LED
Measuring range
Lambda
0 ~ 2.000
AFR
0.0 ~ 99.0
Resolution
0.001
0.1
Display
4 digit 7segment LED
4 digit 7segment LED
Measuring range
NOx
(Option)
0-5000 ppm
Resolution
1 ppm
Display
4 digit 7segment LED
Repeatability
Less than ±2% FS
Response time
Within 10 seconds (more than 90%)
Warming up time
About 2 ~ 8 minutes
Sample collecting
quantity
4 ~ 6 L/min
Power
220V AC or 110V AC ±10% 50 / 60Hz
Power consumption
About 50 W
Operation
temperature
0℃~ 40℃
Dimensions
420 (W) × 298 (D) × 180 (H) mm
Weight
About 6.9 kg
Basic accessories
Probe, Probe hose, Spare fuse, Leak test cap,
Spare filter, Operation manual, Power cord,
RS232, Communication cable, Printer, Printer paper

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3-2 Appearance
This manual is explaining mainly HOW TO USE 4GAS analyzer. 5GAS analyzer is just
added with NO sensor on 4GAS analyzer. So, for 5GAS analyzer, use this same
manual. You also can use the same manual for motorcycle which emits high density of
HC. Measuring range of the HC is 0 - 20,000 ppm and display window is specially
custom-made in order to indicate 5 digits segments, and for CO, CO2, O2, the display
window is indicating 4 digit segments as in general.
Other features such as the sequence and a series of procedures including GAS
calibration is same as those for 4GAS analyzer. So, you can use the same manuals as
well.

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3-3. Front view and description
3-3-1 CO display window
This displays the CO density and program proceeding status.
3-3-2 HC display window
This displays the HC density and program proceeding status.
3-3-3 CO2 display window
This displays the CO2 density and program proceeding status.
3-3-4 O2 display window
This displays the O2 density and program proceeding status.
3-3-5 Lambda display window
This displays the Lambda(air over surplus rate) value and program proceeding status.
3-3-6 AFR/NOx display window
This displays the AFR, NOx, and program proceeding status.