Carman NGA6000 Quick start guide

Notes for User
To use this analyzer with safety and effectiveness, please read this
manual before usage.
This manual applies to the product model NGA 6000.
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 © NEXTECH CO., LTD.

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Contents
Notes for user ....…………………...............................…......…...................1
Contents ............................……..........................................................….........2
Chapter 1. Quality Guarantee Provision
1-1 Guarantee provision ........................................................…............4
1-2 Guarantee claim procedure ............................................…..............4
Chapter 2. Safety Instruction
2-1 Usage purpose ..........................................................…................5
2-2 Usage condition ............................................................….............5
2-3 Caution and warning .....................................................…........…..5
Chapter 3. Introduction of NGA 6000
3-1 Specification ...................................................................…...........6
3-2 Appearance .................................................................……..........7
3-3 Front view and description .............................................….….........8
3-4 Rear view and description ................................................…..…....10
3-5 Basic accessory …………..........................................…...….....12
Chapter 4. Circuits of NGA 6000
4-1. Measuring principal ............................................………..............14
4-2. Guiding diagram .....................................................…......….......15
4-3. Electrical circuit diagram .....................................….............….....15
Chapter 5. Installation Method and Notes
5-1 Installation .............................................................….......….......16
5-2 Notes .............................................................................…........18
Chapter 6. Measurement Mode
6-1. Warming-up ............................................................…...............19
6-2. Stand-by ....................................................................…............24
6-3. Purge ....................................…................................................26

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6-4. Zero calibration ..............................................................….........28
6-5. Measurement ..............................................................……........30
6-6. Hold ..........................................................................…….…....31
6-7. Print ...........................................................................……........31
Chapter 7. Selection Mode
7-1. Key functions .........................................................….................33
7-2. Leak test .................................................................…....…........33
7-3. Remaining HC test .................................................……..............36
7-4. Selection of fuel ........................................................…...............37
7-5. HCV and OCV setup .............…...................................….............39
7-6. PEF indication .......................…................................…..............40
7-7. Program version indication .......…..............................…...............40
7-8. Time setup ................................…............................…..............41
7-9. NOx setup ..................................….........................…...............42
7-10. Standard gas calibration …........................…..........….…..........43
Chapter 8. Fault diagnosis and troubleshooting .....................….........….....51
Chapter 9. Various Expendables Maintenance
9-1. Case segregation view ............................................…..........…....52
9-2. Probe filter .............................................................….........…....53
9-3. Main filter ..................................................................…......…....53
9-4. Printer diagram ………………….............….........………………..54
9-5. Set of the printing density .......................……............…...............55
9-6. O2 sensor ..............................................................…..…...........56
9-7. Dust filter ............................................................……................57
9-8. Zero filter ............................................................….….…...........57
9-9. Power fuse ..............................................................…..…..........58
Chapter 10. Parts List ..................................................................……….......59
Appendix
1. Lambda Calculation Formula..........................................…....................64

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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.
① This analyzer should be manipulated only by the trained personnel who well
understood the usage.
② A spot check or periodical check should be executed in accordance with this manual prior
to a measurement.
③ The probe should be installed in a place where not affected by a wind.
④ If there occurs a unusual case during operation, please stop the operation and contact us
for its inspection and verification.
(2) Warning
① This analyzer is designed for the use of AC110V only or AC220V only. Please verify the
power sources prior to the usage.
② The probe is so hot by emitted gas. Therefore, you need to pay high attention not
to be burned during when you insert or remove.
③ During the analysis, please do not stay long in the place to which the gas is being emitted.
④ The 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 NGA 6000
3-1 Specification
NGA 6000
Measuring item CO, HC, CO2, O2, 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.

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3-3-7 PRINT KEY
Used in time of holding or printing.
3-3-8 MENU KEY
Used in choosing a supplementary function.
3-3-9 ▼ KEY
ZERO
Used in time of correcting the datum point or moving a figure or digit.
3-3-10 ▲ KEY
PURGE
Used in time of doing a purge or executing a value increase.
3-3-11 ENTER KEY
Used in time of measuring or approving a supplementary function.
3-3-12 ESC KEY
Used in time of returning to ready mode.
3-3-13 Internal printer case: The print paper comes out this case.

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3-4 Rear view and description
3-4-1 CAL(Calibration)
This is a gas inflow gate used in time of standard gas adjustment.
3-4-2 INLET
This is a measuring inlet where one end of the probe mounted into this inlet in time of gas
emission measurement.
3-4-3 WATER OUTLET
This is an emitting outlet where the gas produced in the time of measuring the emitted gas (4GAS
Analyzer) and water to correct the gas is outcome.
3-4-4 MAIN FILTER
This condenses the vapor contained in the automobile emitting gas so that it prevents other
materials from incoming to inside the analyzer at the same time with the water and measuring
gas.
3-4-5 DUST FILTER
This prevents fine dusts and materials from incoming inside the analyzer in the time of measuring.
3-4-6 ZERO FILTER
This is an activate charcoal filter to purify the analyzer cell in the time of correcting the zero point.

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3-4-7 GAS OUTLET
This is a emitting outlet where the emitting gas and standard gas is outcome in the time of adding
the NOx.
3-4-8 OPTION
This is a terminal to be directly connected with a normal PC printer.
3-4-9 RS232 PORT
This is a communication terminal through which a PC can operate the
program.
3-4-10 POWER SWITCH
A power on/off terminal of this analyzer.
3-4-11 FUSE BOX
A fuse terminal which will prevent a damage from external voltage overflow.
3-4-12 POWER SOCKET
3-4-13 FAN

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3-5 Basic accessory
3-5-1 Basic accessory

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3-5-2 Basic accessory lists
NO. PART NAME PART
NUMBER Q'TY
1. PROBE QG0-M026 1PC
2. PROBE HOSE QG0-A015 1PC
3. LEAK TEST CAP QG0-A122 1PC
4. OPERATION MANUAL QG4-M071 1 COPY
5. MAIN FILTER QG0-A017 10PC
6. DUST FILTER QG0-A013 5PC
7. ZERO FILTER QG0-A014 2PC
8. PROBE FILTER QG0-A021 10PC
10. FUSE (250V 2A) QG0-E022 2PC
11. POWER CABLE QG0-E019 1PC
14. INNER PRINTER QG4-M026 1PC
15.
PRINTER PAPER
(ROLL TYPE) QG4-A062 5PC
16. COMMUNICATION CABLE QG4-E080 1PC
** As for the standard gas, we recommend you to buy it from local dealers.

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Chapter 4. Circuits of NGA 6000
4-1 Measuring principal
This analyzer is configured to perform a measurement by applying Non Dispersive Infra-Red (NDIR)
method for analyzing CO, HC, and CO2, and electrochemical method for analyzing O2 and NOx. In
the NDIR analyzing method, a flashing ramp which flashes the infrared rays is attached at the one
end of the sample cell and at the other end a detecting sensor is attached so that it can detect the
component of a gas and then calculate the gas density.
<NDIR method diagram>
The electrochemical method measures the gas density by using the quantity of electron which
produced in the time of oxidation and reducing reaction of the gas.
<Electrochemical method diagram>

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4-2 Guiding diagram
4-3 Electrical circuit diagram

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Chapter 5. Installation Methods and Notes
5-1 Installation
5-1-1 Fit end of the probe hose into the measuring probe and the other end of the hose into the gas
inlet in the rear of the analyzer. If the fitting condition is not good and the air comes into flow
from outside, it may yield an incorrect measured value.
Therefore, please carefully verify the fitting condition before use.
5-1-2 Turn off the power switch and then connect the power cable to the power socket located in the
rear of the analyzer
※
Warning
This analyzer supports AC110V only or AC220V only.
(Please confirm the power source to use.)

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5-1-3 Verify the fitting conditions of measuring probe filter and various filters located in the rear of
the analyzer.
5-1-4 Verify again the connection status of the analyzer and then turn on the power switch.
5-1-5 Connect the ground cable to GROUND on the rear of the analyzer.

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5-2 Notes
▶ This analyzer is operated with AC110V only or AC220V only. Please verify the power source
before use. (Note that you can not change power source which is fixed upon supplying this
analyzer.)
▶ The following factors should be considered to properly locate the analyzer body :
━ To be setup in a place of no direct light rays, humidity, vibration and abrupt temperature
change.
━ To be setup in a indoor place where no emitted gas inflows.
━ To be setup in a height higher than 25cm from the ground.
▶ The analyzer should not be moved during the operation. It may cause an
incorrectness in the measured value.
▶ The probe should be located in a place where not affected by the wind.
▶ The probe may be so hot during the operation so that it should be carefully handled not to be
burned in insertion or removal.
▶ It needs to be noted that you should not stay in the gas emitting place during the operation.
▶ The analyzer should be used in a well-ventilated place only because the emitting gas contains the
CO and it can cause a fatal damage to a human body.
▶ This analyzer is Type-approved in accordance with the related government laws so that it is
extremely prohibited to disassemble, change, or rebuild the analyzer and also if you disassemble
the NDIR Module, you may not be guaranteed for the repair.
▶ NDIR module is the core part of the analyzer. Disassembly or assembly work is possible
only by the manufacturer's technician. In any circumstance, you or anyone else should not
attempt to disassemble it. If disassembled or re-assembled, proper A/S is not going to be
possible.

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6. Measurement Mode
6-1. Warming- Up
① Switch the power [ON]. NGA 6000 will perform the initialization process for 10 seconds,
displaying the following.
CO
HC
% ppm
CO2 O2
% %
Lambda
AFR
NOX
② NGA 6000 will display current set date and time for about five seconds.
CO
HC
% ppm
CO2 O2
% %
Lambda
AFR
NOX
(E.g: May 15th, 2006, PM 1 : 25)

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③ After displaying the current date and time, NGA 6000 will perform the self-diagnosis in the order of
display window verification, communication, internal sensor, and memory as follows. If the items
diagnosed are normal, NGA 6000 will display the [PASS] message.
(Self-diagnosis execution screen)
CO HC
% ppm
CO2 O2
% %
Lambda
AFR
NOX
↓
CO HC
% ppm
CO2 O2
% %
Lambda
AFR
NOX
↓