Seitron CHEMIST 500 User manual

USE AND MAINTENANCE
MANUAL
CHEMIST 500
Combustion Analyzer
Respect your environment: think before printing the full manual on paper
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di regolazione, misura e controllo

SEITRON S.p.A. a socio unico - ALL RIGHTS RESERVED -
Total or partial reproduction of this document by any means (including photocopying
or storage on any electronic medium) and transmittal of same to third parties in any
manner, even electronically, is strictly prohibited unless explicitly authorised in writing
by SEITRON S.p.A. a socio unico

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TABLE OF CONTENTS
1.0 IMPORTANT INFORMATION 07
1.1 Information about this manual 07
1.2 Safety warnings 07
2.0 SAFETY 08
2.1 Intended use of the product 08
2.2 Improper use of the product 08
3.0 WORKING PRINCIPLE 09
3.1 Working principle 09
3.2 Measuring cells 09
4.0 DESCRIPTION OF THE PRODUCT 10
4.1 General Description of the Combustion Analyzer 10
4.2 General Characteristics of the Combustion Analyzer 10
4.3 Description of the Components of the Combustion Analyzer 12
4.3.1 Keypad 13
4.3.2 Display 13
4.3.3 Printer 14
4.3.4 B-Type USB connector 14
4.3.5 Serial connector (Mini Din 8 poli) 14
4.3.6 Pneumatic connector inputs / TC-K 14
5.0 MAIN CONFIGURATIONS 15
6.0 TECHNICAL SPECIFICATIONS 16
6.1 Technical specifications 16
6.2 Measurement and Accuracy Ranges 17
7.0 STARTUP 18
7.1 Preliminary operations 18
7.2 Warnings 18
7.3 Power supply of the Analyzer 18
7.3.1 Checking and replacing the batteries 18
7.3.2 Use with external power pack 19
7.4 Connection diagram 20
7.4.1 Gas Sampling Probe 21
7.4.2 Condensation trap and dust filter 21
7.4.3 Connecting the gas sampling probe and water-trap 21
7.4.4 Connecting the Tc-K probe 22
7.4.5 Combustion air temperature probe 22
7.4.6 Connection of combustion air temperature probe 22
7.4.7 Burner pressure verification probe 22
7.4.8 Ionization current measuring probe 22
7.4.9 Measurement of ambient CO 22
7.4.10 Measurement of differential pressure 22
7.4.11 Connection to PC 22
7.4.12 Connection to battery charger 22

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8.0 POWER ON - OFF 23
8.1 Starting the device 23
9.0 CONFIGURATION 24
9.1 Configuration Menu 24
9.2 Analysis Menu 25
9.2.1 Configuration=>Analysis=>Fuel 26
9.2.2 Configuration=>Analysis=>Condensation 27
9.2.3 Configuration=>Analysis=>O2 reference 28
9.2.4 Configuration=>Analysis=>NOx/NO ratio 29
9.2.5 Configuration=>Analysis=>Measurement units 30
9.2.6 Configuration=>Analysis=>Autozero 31
9.2.7 Configuration=>Analysis=>Measures list 32
9.2.8 Configuration=>Analysis=>Air temperature 34
9.3 Instrument Menu 35
9.3.1 Configuration=>Instrument=>Bluetooth 36
9.3.2 Configuration=>Instrument=>Time/Date 37
9.3.3 Configuration=>Instrument=>Brightness 38
9.3.4 Configuration=>Instrument=>Pump 39
9.3.5 Configuration=>Instrument=>CO dilutor 40
9.3.6 Configuration=>Instrument=>Micromanometer 41
9.4 Configuration=>Operator 42
9.5 Configuration=>Alarm 44
9.6 Information Menu 45
9.6.1 Configuration=>Information=>Battery 46
9.6.2 Configuration=>Information=>Sensors 47
9.6.3 Configuration=>Information=>InfoService 48
9.6.4 Configuration=>Information=>Reminder 49
9.6.5 Configuration=>Information=>Probes 50
9.7 Configuration=>Diagnostic 51
9.7.1 Configuration=>Diagnostic=>Sensors 52
9.7.2 Configuration=>Diagnostic=>Gas probe 53
9.7.3 Configuration=>Diagnostic=>Memory 54
9.7.4 Configuration=>Diagnostic=>Pump 55
9.7.5 Configuration=>Diagnostic=>Cal. In sito 57
9.8 Configuration=>Language 61
9.9 Configuration=>Restore 62
10.0 MEMORY 63
10.1 Memory Menu 63
10.1.1 Memory Organization 65
10.2 Memory=>Save 66
10.3 Memory=>Average 68
10.4 Memory=>Select 69
10.4.1 Memory=>Memory recall 70
10.5 Memory=>Data logger 73
10.6 Memory=>Delete 74
10.6.1 Memory=>Delete=>Single 75
10.6.2 Memory=>Delete=>All 76
10.7 Memory=>Usage 77
TABLE OF CONTENTS

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11.0 PRINT 78
11.1 Print Menu 78
11.2 Print=>Report 79
11.3 Print=>Configuration 80
11.4 Print=>Test 82
11.5 Print=>Header 82
11.6 Print=>Printer 84
11.6.1 Print=>Printer=>Pairing 85
11.7 Print=>Measures list 87
12.0 MEASUREMENTS 89
12.1 Measurements Menu 89
12.2 Measurements=>Draft 91
12.3 Measurements=>Smoke 92
12.4 Measurements=>Ambient CO 93
12.5 Measurements=>Temperature 94
12.6 Measurements=>Pressure 95
12.7 Measurements=>Tightness test 96
12.7.1 Connection of the tool tightness test kit 97
12.8 Measurements=>Tightness test=>New piping (UNI 7129) 98
12.8.1 Configuration of tightness test according to UNI 7129 101
12.8.2 Performing tightness test according to UNI 7129 105
12.9 Measurements=>Tightness test=>Existing piping (UNI 11137) 107
12.9.1 Configuration of tightness test according to UNI 11137 111
12.9.2 Performing tightness test according to UNI 11137 115
12.10 Measurements=>Tightness test=>TRGI 117
12.10.1 Performing tightness test for a gas line up to 100 liter 119
12.10.2 Performing tightness test for a gas line up to 100 / 200 liter 121
12.10.3 Performing tightness test for a gas line with volume greater 200 liter 123
12.11 Measurements=>Tightness test=>Header 125
12.12 Measurements=>Tightness test=>Results of the tightness test 127
12.13 Measurements=>Leak detector 128
12.13.1 Connecting the probe for gas leak 128
12.13.2 Performing the test 128
12.14 Measurements=>AUX measurements 129
12.15 Measurements=>Velocity 130
12.15.1 How to connect the Pitot tube to the instrument 131
12.15.2 Test execution 132
12.16 Measurements=>Power of burner 133
12.16.1 Testing in 'Manual' mode 134
12.16.2 Testing in 'Measure' mode (based on Flow rate) 135
12.16.3 Testing in 'Measure' mode (based on meter) 136
13.0 COMBUSTION ANALYSIS 138
13.1 Combustion Analysis 138
13.1.1 Startup and e auto-calibration of the device 138
13.1.2 Inserting the probe in the chimney 138
13.1.3 Simultaneous measurement of pressure, O2, pollutants 139
13.1.4 Combustion Analysis 140
13.1.5 End of Analysis 140
TABLE OF CONTENTS

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13.2 Combustion Analysis - Preliminary operations 141
13.3 Combustion Analysis - Manual mode 143
13.4 Combustion Analysis - UNI 10389 mode 145
13.5 Combustion Analysis - BImSchV mode 147
13.6 Combustion Analysis - Data logger mode 148
14.0 SENSORS 150
14.1 Sensors arrangement 150
14.2 Sensor types and relevant positioning 150
14.3 Gas sensors life 151
14.4 Gas sensors life 151
14.5 Expandability to 4 sensors 152
14.6 CxHy sensor for measurement of the unburnt hydrocarbons 153
14.6.1 Installing the CxHy sensor 153
14.7 CO2 sensor for Carbon Dioxide measurement in combustion processes 154
14.7.1 Installing the CO2 sensor 154
14.8 Sensor for combustible gas leaks 155
14.8.1 Installation of the sensor for combustible gas leaks 155
14.8.2 Performing the test 155
15.0 MAINTENANCE 156
15.1 Routine maintenance 156
15.2 Preventive maintenance 156
15.3 Cleaning the sample probe 156
15.4 Maintaining the water trap / filter unit 157
15.5 Replacing the particulate filter 157
15.6 Replacing the gas sensors 157
15.7 Replacing the battery pack 161
15.8 Replacing the printer paper roll 162
15.9 Firmware update 163
16.0 TROUBLESHOOTING 164
16.1 Troubleshooting guide 164
17.0 SPARE PARTS AND SERVICING 166
17.1 Spare parts 166
17.2 Accessories 166
17.3 Service Centres 167
ANNEX A - Analysis report examples 168
ANNEX B - Coefficients of the fuels and Formulas 172
ANNEX C - Normative references 173
ANNEX D - Declaration of Conformity 178
WARRANTY CERTIFICATE 180
TABLE OF CONTENTS

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1.1 Information about this manual
 This manual describes the operation and the characteristics and the maintenance of the Combustion Analyzer
Chemist 500.
 Read this operation and maintenance manual before using the device. The operator must be familiar with the
manual and follow the instructions carefully.
 This use and maintenance manual is subject to change due to technical improvements - the manufacturer
assumes no responsibility for any mistakes or misprints.
1.2 Danger levels and other symbols
WARNING
Information on LCD
Ensure correct disposal
Keyboard with preformed keys
with main control functions.
1.0 IMPORTANT INFORMATION
Symbol Meaning Comments
Read information carefully and prepare
safety appropriate action!
To prevent any danger from personnel or other
goods. Disobey of this manual may cause
danger to personnel, the plant or the
environment and may lead to liability loss.
Dispose of the battery pack at the end of its
working life only at the dedicated collecting bin.
The customer takes care, on his own costs,
that at the end of its working life the product is
collected separately and it gets correctly
recycled.
15/01/14
10:00
Information
Servizio
Esc
[email protected]
www.seitron.it
Fax. [phone]
Tel. [phone]
Bassano del Grappa, VI
Via M. Prosdocimo, 30
Seitron S.p.A.
The magnets in the back of the instrument can damage credit cards, hard driver, mechanical
watches, pacemakers, defibrillators and other devices proven sensitive to magnetic fields.
It is recommended to keep the instrument at a distance of at least 25cm away from these
devices.

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2.0 SAFETY
2.1 Intended purpose
This chapter describes the areas of application for which the CHEMIST 500 is intended.
Using the CHEMIST 500 in other application areas is on the risk of the operator and the manufacturer assumes
no responsibility and liability for loss, damage or costs which could be a result. It is mandatory to read and pay
attention to the operating/maintenance manual.
All products of the series CHEMIST 500 are handheld measuring devices in professional flue gas analysis for:
 Small furnaces (burning oil, gas, wood, coal)
 Low-temperature and condensing boilers
 Gas heaters
Due to other configuration with electrochemical cells it is possible to use the measuring instrument in following
application area:
 Service engineers/mechanics of burner/boiler manufacturers
 Service industrial combustion plants
The measuring instrument is approved for measurements under German regulations on immissons protection
(1. BImSchV)1.
Additional functions of the measuring instrument:
 Flue gas analysis according 1. BImSchV or qA-mean value (selectable)
 Calculating of stack heat loss and efficiency
 CO- and NO environment measurement
 Tightness test
 Store Smoke value, calculating mean value
 Measuring differential pressure
 Draught measurement
2.2 Improper use of the product
The use of CHEMIST 500 in application areas other than those specified in Section 2.1 "Intended use of the
product" is to be considered at the operator’s risk and the manufacturer assumes no responsibility for the loss
damage or costs that may result. It is compulsory to read and pay attention to the instructions in this use and
maintenance manual.
CHEMIST 500 should not be used:
 For continuous measurements > 1h
 As safety alarm instrument
1 Valid for configurations equipped with the following sensors:
O2 sensor: Cod. AAC SE11
CO+H2 sensor: Cod. AAC SE12
NO sensor (optional): Cod. AAC SE10.

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3.1 Working principle
The gas sample is taken in through the gas probe, by a diaphragm suction pump inside the instrument.
The measuring probe has a sliding cone that allows the probe to be inserted in holes with a diameter of 11 mm to
16 mm and to adjust the immersion depth: the gas picking point must be roughly in the centre of the flue
section.
The gas sample is cleaned of humidity and impurities by a condensate trap and filter positioned along the rubber
hose that connects the probe to the analyser.
The gas is then analyzed in its components by electrochemical and infrared sensors.
The electrochemical cell guarantees high precision results in a time interval of up to about 60 minutes during
which the instrument can be considered very stable. When measurement is going to take a long time, we suggest
auto-zeroing the instrument again and flushing the inside of the pneumatic circuit for three minutes with clean air.
During the zero calibrating phase, the instrument aspirates clean air from the environment and detects the cells’
drifts from zero (20.95% for the O2 cell), then compares them with the programmed values and compensates
them. The pressure sensor autozero must, in all cases, be done manually prior to measuring pressure.
The values measured and calculated by the microprocessor are viewed on the LCD display which is backlit to
ensure easy reading even when lighting is poor.
3.2 Measurement cells
Oxygen (%O2) is measured with an electrochemical cell that acts like a battery which, over time, is apt to lose
sensitivity.
The toxic gases (CO, SO2, NO, NO2) are measured with electrochemical sensors that are not subject to natural
deterioration being intrinsically lacking of oxidation processes.
The measurement cells are electrochemical cells made up of an anode, a cathode, and an electrolytic solution,
which depends on the type of gas to be analysed. The gas penetrates the cell through a selective diffusion
membrane and generates an electric current proportional to the absorbed gas. Such current is measured,
digitalized, temperature-compensated, processed by the microprocessor, and displayed.
The gas shall not be at a pressure such to damage or destroy sensors. The maximum estimated allowed
pressure is ±100mbar gage.
The response times of the measurement cells used in the analyser are::
O2 = 20 sec. at 90% of the measured value
CO(H2) = 50 sec. at 90% of the measured value
CO = 50 sec. at 90% of the measured value
NO = 40 sec. at 90% of the measured value
NO2 = 50 sec. at 90% of the measured value
SO2 = 50 sec. at 90% of the measured value
It is therefore suggested to wait 5 minutes (anyway not less than 3 minutes) in order to get reliable analysis data.
If sensors of poison gases are submitted to concentrations higher than 50% of their measurement range for more
than 10 minutes continuously, they can show up to ±2% drift as well as a longer time to return to zero. In this
case, before turning off the analyser, it is advisable to wait for the measured value be lower than 20ppm by
intaking clean air. If there is an automatic calibration solenoid, the device performs an automatic cleaning cycle
and it turns off when the sensors return to a value close to zero..
The CO sensor can be protected from high gas concentrations through the dilution function which allows for a
wider measurement range of the sensor without overcharging the sensor itself.
The dilution function allows the CO sensor to always be efficient and ready to respond even in the case of very
high concentrations of CO.
3.0 WORKING PRINCIPLE

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4.1 General Description of the Combustion Analyser
The design of the handheld combustion analyser "CHEMIST 500" is clean and ergonomic with an extremely clear
and user-friendly keypad.
"CHEMIST 500" immediately suggests just how even the most sophisticated engineering can give life to an
incredibly comfortable and easy to use work instrument.
Devised to analyse flue gases, monitor the pollutants emitted and measure environmental parameters,
"CHEMIST 500" uses two electrochemical cells that provide the oxygen and carbon monoxide values while a
third cell is used to measure the pollutants NO and NOx.
The most complete version can house a fourth sensor for measuring NO2, SO2 and CxHy. CO,NO,NO2 and
SO2 measuring sensors are also available with a reduced measuring range, with a resolution of 0.1 ppm and
better accuracy.
Two external sensors measure the environmental parameters; it is also possible to measure flue draught and
carbon black and, with the measuring range of up to 200mbar, system pressure and pressure in the combustion
chamber can be measured and the pressure switches checked.
Intended for eleven main types of combustibles amongst which natural gas, LPG, diesel and fuel oil, it is also
possible to insert into the memory of "CHEMIST 500" another 16 combustibles of which the chemical composition
is known. The functions of "CHEMIST 500" include the storage and the average of the data acquired, the printing
(on a roll of thermal polyester paper) of the results and the possibility of connecting the device to a computer to
store to data via USB connection.
Its memory is able to store 1000 complete analyses and using the dedicated SW and mini-USB serial
communication cable it is possible to download the data to a PC. It is also interesting to know that "CHEMIST
500" is equipped with a single "Li-Ion" rechargeable battery pack used both to power the unit and for the printer: it
also has a bright and wide (55 x 95 mm) TFT colour display that has an excellent readability also thanks to the
zoom function and the backlight.
Another characteristic that distinguishes it from other similar products in the market is the fact the power supply
that comes with the product can carry out the dual function of battery charger and power supply for the
instrument which means the user can carry out analyses even if the batteries are completely flat.
Another important function is the possibility of carrying out an autozero cycle with the probe inside the stack,
exploiting a sophisticated flow deviation system.
As for maintenance, it is useful to know that the sensors can be replaced by the user himself without having to
send the device to a service centre because the sensors are pre-calibrated; it will however be necessary to get
the device calibrated at least once a year, as required by the standard UNI 10389-1.
Also:
 Operator interface: user-friendly - so much so that it can be used without the instruction manual.
 Wide and bright TFT colour display: great readability thanks to the Zoom function and to an efficient
backlight.
 Integrated thermal printer: with thermal polyester paper or thermal paper you get maximum readability and
durability and heat resistance.
 One battery pack: rechargeable for powering the instrument and the printer, indicating the charge level and is
accessible from outside.
 Pneumatic input connectors (gas and pressure/draught) staying inside the profile of the instrument: for
greater resistance to knocks.
 Precalibrated sensors, directly replaceable by the user.
4.2 General features of the Flue Gas Analyser
The portable analyzer CHEMIST 500 has been carefully designed in accordance with regulatory requirements
and the specific needs of the customers.
The device contains a single board with all the basic operating circuits, pre-calibrated measuring cells, a gas
extraction pump, a solenoid valve, a dilution pump, a membrane keyboard, a TFT backlit graphic display, a high-
capacity "Li-Ion" rechargeable battery pack and an integrated thermal printer. The two halves of the casing are
securely fastened together with seven screws on the back of the device.
The pneumatic circuit and the measuring cells with electronic module are positioned in the back of the casing and
they are accessible, for rapid maintenance and replacement, by removing the magnet cover in the lower part of
the device. The roll of paper is located at the top, above the display, and it can be replaced easily by removing
the pressure-locked door. On the bottom part of the analyzer are the pneumatic connectors for gas sampling and
for the measurement of the pressure/draught: the T1 connector to connect the gas probe thermocouple plug and
the T2 connector to connect the combustion air probe thermocouple plug. On the right side of the device are the
B-type USB connector for the connection of the external power source or of the PC and the 8-pole mini DIN
connector for the serial interface or for an external probe (optional).
The user interface includes a TFT graphic display with back light always active and a membrane keyboard. The
menu screens and all the operator messages can be set in the desired language.
4.0 DESCRIPTION OF THE PRODUCT

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The use of the analyzer is simplified by the symbol keys with direct access to the most important functions.
Navigation through the various menu screens is easy and intuitive.
Gas extraction pump
The sample pump located inside the instrument is a DC-motor-driven diaphragm pump, powered by the
instrument, and is such as to obtain optimal flow of the sampled gas being analysed; an internal sensor that
measures the flow allows to:
- Keep the flow rate of the pump constant
- Check the efficiency of the pump
- Check the degree of clogging of the filters
Simultaneous measurement of pressures, O2, pollutants
The instrument, to obtain boiler’s perfect combustion parameters, allows to measure simultaneously the input and
output pressure of the gas valve, the level of O2, the levels of pollutants and all the calculated parameters
needed to obtain the correct value of yield.
See section 13.1.3.
Measurement cells
The instrument uses precalibrated gas sensors of the long-lasting FLEX-Sensor series for measuring oxygen (O2),
carbon monoxide CO (compensated in hydrogen H2), nitrogen oxide (NO), nitrogen dioxide (NO2) and sulphur
dioxide (SO2). An automatic internal device dilutes the concentration of CO when the instrument measures high
concentrations. The diluting system also allows the CO sensor measuring range to be extended up to
100.000 ppm (for full scale 8,000ppm sensor). The valve for the optional automatic fast autozero lets the operator
turn the instrument on with the probe inserted in the flue. Up to 4 alarms can be programmed with visual and
acoustic warning for the same number of measuring parameters.
The measuring cells are the electrochemical type.
The UNI 10389-1 standard prescribes that the instrument must be calibrated once a year by an authorised
laboratory to issue calibration certificates. When the cells are flat they can be replaced easily by the user without
having to send the instrument away and without complicated calibration procedures requiring sample mixtures as
they are supplied already calibrated.
Seitron does, however, certify measurement accuracy only when a calibration certificate has been issued by its
own laboratory or by an authorised laboratory.
Pressure sensor
The device is internally provided with a piezoresistive differential pressure sensor to measure the draught
(depression) of the chimney, according to UNI 10845, for the tightness test of the piping and possible for other
measurements (gas pressure in the network, loss of pressure through filters, etc.).
Fuel types
The device is provided with the technical data of the most common types of fuels stored in its memory. By using
the PC configuration program, available as an optional, it is possible to add combustibles and their coefficients in
order to define up to a maximum of 16 combustibles, other than the default ones.
For more details see Annex B.
Smoke measurements
It is possible to enter the smoke values measured according to the Bacharach scale. The instrument will calculate
the average and print the results in the analysis report.
An external pump, available as an optional, must be used to effect this measurement.
Pressure decay test
The instrument can perform the tightness test of a piping according to the italian standards UNI 7129 and
UNI 11137: 2012.
Measuring ambient CO (available soon)
Probe for monitoring the concentration of CO and checking safe conditions in the boiler room.
Calibration certificate
The device comes with a calibration certificate compliant with standard ISO/IEC 17025.
Electromagnetic compatibility
The instrument was designed to comply with Council Directive 2004/108/EC governing electromagnetic
compatibility. Seitron’s declaration of conformity may be found in Annex D.

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4.3 Overview of Flue Gas Analyser Components
A
B
C
P
O
Q
Q Q
E
D
G
L M
I
F
N
H
LEGEND
A Keypad
B Display
C Cover for access to the printer to replace the roll
of paper
D B-type USB connector to connect the device to
the power source or to a PC
E Serial cable connector for connection with
accessory probes
F T2 - Tc-K female connector to connect
combustion air temperature probe
G T1 - Tc-K female connector to connect gas probe
H Gas output
I AUX connector (input for optional external probes)
L P connector- (negative input to measure draught)
N P+ connector (positive input to measure
differential pressure)
O Cover to access battery compartment
M IN connector (gas exhaust probe input by means
of a complete condensate separator unit)
Q Magnets
P Cover to access cell compartment

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4.3.1 Keypad
Adhesive polyester keypad with preformed keys featuring main control functions:
KEYS FUNCTION
Activates the context
keys shown on the
display
Access to the Memory
menu
Access to the Printing
menu
Access to the
Configuration menu
Performs the analysis of
the combustion
Access to the
Measurements menu
4.3.2 Display
Date, time and battery status.
Selected menu.
Parameters relative to the selected menu.
Context keys. In the various menus the functions vary depending on
the type of operation being carried out.
KEYS FUNCTION
Turns the device On/Off
Exits the current screen
Select and/or Modify
Confirm settings
+ Backlight turn-off.
TFT 272 x 480 pixel backlit colour display with 21 characters available and 8 lines. Allows the user to view the
measured parameters in the most comfortable format; a Zoom function displays the measured values in
magnified form.
CAUTION:
If the instrument is exposed to extremely high or extremely low temperatures, the quality of the display
may be temporarily impaired. Display appearance may be improved by acting on the contrast key.
15/01/14
10:00
ηs
% 91.4
Qs
% 8.6
ΔT
°C 74.7
T air
°C 15.4
T flue
°C 190.1
λ,n
1.25
CO2
% 9.3
O2
% 4.2
Combustion analysis
Combustion analysis

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Backlight
The backlight can be turned off with the simultaneous pressure on keys + .
The backlight is turned on when any key is pressed, except ' ' key.
4.3.3 Printer
Thermal on thermal polyester or thermal paper. Thermal polyester cannot be altered and it is resistant to light, to
temperature, to humidity and to water.
The print menu is accessed by pressing the relative key and, besides enabling read-out printing, the menu also
allows you to modify print settings and to advance the paper manually so as to facilitate paper roll replacement.
4.3.4 B-Type USB connector
Connector to connect the device to a personal computer or to the battery charger.
The device comes with a feeder with output 5V=, 2A to charge the internal batteries. In (section 4.3) you can
see the socket to connect the battery charger to the device. Once it has started charging, the display turns on
and the charging state is displayed.
4.3.5 Serial connector (Mini Din 8-pole)
In (section 4.3) we find the socket of the serial cable for connecting the instrument to an external probe, for
example, to the draught gauge (optional), or to the ionisation current probe (optional).
4.3.6 Pneumatic connector inputs / TC-K
Pneumatic connector "A": input for the connection of the branch of the gas sampling probe with the
condensation separating and anti-dust filter assembly.
Pneumatic connector "P-": negative input (P-) to be used to measure the draught in accordance with the
standard UNI10845; it must be connected to the second branch of the gas
sampling probe in order to measure the draught and analyse combustion at the
same time.
Pneumatic connector "P+": positive input (P+) to be used to measure the pressure in general and for
tightness tests.
WARNING: the inputs "P+" and "P-" are respectively the positive and the negative inputs of the internal
differential pressure sensor, therefore they are used simultaneously to measure the differential pressure.
Female connector TC-K "T1": input for the connection of the male TC-K connector of the gas sampling probe.
Female connector TC-K "T2": input for the connection of the male TC-K connector of the combustion air
temperature probe.
D
E

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5.0 MAIN CONFIGURATIONS
1 This model identifies custom configurations different to standard ones.
CHEMIST
502 B
CHEMIST
502 C
CHEMIST
503
CHEMIST
504 N
CHEMIST
504 S
CHEMIST
501
CHEMIST
500 X (1)
CHEMIST
502
CHEMIST
503 B
CHEMIST
500 XB (1)
O2 SENSOR          
CO+H2 SENSOR     
 
CO SENSOR
CO SENSOR
0 .. 20000 ppm
(2%)

NO SENSOR   

NO2 SENSOR 
SO2 SENSOR 
NOT
EXPANDABLE

EXPANDABLE
TO 4 SENSORS   
  
AUTOMATIC
AUTOZERO          
CO DILUTION      
BLUETOOTH          
TIGHTNESS TEST          
DRAUGHT
MEASUREMENT
ACCORDING TO
UNI 10845
         
CALIBRATION
CERTIFICATE          
QUICK GUIDE          
GAS SAMPLE
PROBE 180mm          
COMBUSTION
AIR
TEMPERATURE
PROBE
         
CONDENSATE
TRAP          
PRESSURE
MEASURING KIT
KIT MISURA
PRESSIONE
DIFFERENZIALE
         
BATTERY
CHARGER          
EUROPEAN PLUG
FOR BATTERY
CHARGER
         
PC SOFTWARE          
HARD CASE          
ROLL OF PAPER
PRINTER          

16 K000000000SE 027384 010916
6.0 TECHNICAL SPECIFICATIONS
6.1 Technical Specifications
Autozero: Automatic autozero cycle.
Dilution (where provided): Expansion system of the CO sensor measuring range up to 100.000ppm
(10.00%) programmable as a simple protection of the CO sensor with
triggering threshold programmable by the user. Preset triggering threshold at
1500 ppm.
Gas measurement sensors: Up to 4 configurable sensors: electrochemical, NDIR and pellistor
Self-diagnosis: All the functions and internal functions are checked and anomalies signalled.
Temperature measurement: Double K thermocouple input with mini connector (ASTM E 1684-96 ) to
measure differential temperature (supply and return)
Measurement of ambient temp.: Via internal sensor or T2 thermocouple input with remote probe.
Type of combustible: 12 predefined by the factory and 16 that can be programmed by the user.
Power: Li-Ion battery pack with internal protection circuit.
Battery charger: External 5Vdc 2A battery charger with female A-type USB connector +
connection to the device with the same serial communication cable supplied.
Charging time: 5 hours to charge from 0% to 90% (6 hours for 100%). The device can also
be charged by connecting it to the PC, the device must be turned off, the
charging time depends on the output current from the PC and may be more
than 12 hourse.
Instrument working time: 12 hours of non-stop operation (excluding printing).
Printer: Thermal integrated with easy loading paper and sensor for the presence of paper
Printer powered: By the analyser batteries.
Printer autonomy: Up to 40 analysis reports with the batteries fully charged.
Internal data memory: 1000 complete data analyses, time and name of the customer can be stored.
User data: 8 programmable user names.
Print-out heading: 4 lines x 24 characters, customisable by the user.
Display: Graphic 272 x 480 pixels, backlit, colour TFT 4.3".
Communication port: USB with B-type connector
Bluetooth (where provided): Class 1 / Communication distance: <100 meters (in open range).
Line filter: With replaceable cartridge, 99% efficient with 20um particles.
Suction pump: 1.0 l/min heads at the flue up to 135mbar.
Measurement of flow: Internal sensor to measure the flow of the pump.
Condensate trap: Outside the instrument.
Carbon black: Using an external hand pump; it is possible to enter and print the smoke
index.
Leak test: Gas pipes tested for leaks with separate printout of the result, by means of
the attachment AACKT02, according to UNI 7129 (new systems) and UNI
11137: 2012 (existing systems), with automatic calculation of pipe volume.
Condensing boiler efficiency: Automatic recognition of the condensing boiler, with calculation and printout
of efficiency (>100%) on the LHV (Lower Heating Value) in accordance with
UNI10389-1.
Environmental gases: Measurement and separate printout of the ambient CO values.
Draught test: Draught tested as per the UNI 10845 standard. By using the internal sensor
connected to the port P-, resolution 0,1 Pa , accuracy 0,5 Pa.
Operating temperature range: -5°C to +45°C
Storage temperature range: -20°C to +50°C
Operating humidity range: 20% to 80% RH
Protection grade: IP42
Air pressure: Atmospheric
Outer dimensions: Analyser: 9 x 31 x 6 cm (L x A x P)
Case: 50 x 39 x 13 cm (L x A x P)
Weight: Analyser: ~ 0,9 Kg
Compliant with the European standard EN50379-1 and EN50379-2: See the declaration of conformity (ANNEX D)

17 K000000000SE 027384 010916
6.2 Measurement and Accuracy Ranges
MEASUREMENT SENSOR RANGE RESOLUTION ACCURACY
O2 Electrochemical sensor 0 .. 25.0% vol 0.1% vol ±0.2% vol
CO
with H2 compensation Electrochemical sensor 0 .. 8000 ppm 1 ppm
±10 ppm 0 .. 200 ppm
±5% measured value 201 .. 2000 ppm
±10% measured value 2001 .. 8000 ppm
diluted Electrochemical sensor 10.00% vol 0.01% vol ±20% measured value
CO Low range
with H2 compensation Electrochemical sensor 0 .. 500 ppm 0.1 ppm ±2 ppm 0 .. 40.0 ppm
±5% measured value 40.1 .. 500.0 ppm
diluted Electrochemical sensor 6250 ppm 10 ppm ±20% measured value
CO Mid range Electrochemical sensor 0 .. 20000 ppm 1 ppm
±100 ppm 0 .. 2000 ppm
±5% measured value 2001 .. 4000 ppm
±10% measured value 4001 .. 20000 ppm
diluted Electrochemical sensor 25% vol 0.01% vol ±20% measured value
CO Hi range Electrochemical sensor 0 .. 10.00% vol 0.01% vol ±0.1% vol 0 .. 2.00 %
±5% measured value 2.01 .. 10.00 %
CO
high immunity H2 Electrochemical sensor 0 .. 8000 ppm 1 ppm
±20 ppm 0 .. 400 ppm
±5% measured value 401 .. 4000 ppm
±10% measured value 4001 .. 8000 ppm
NO Electrochemical sensor 0 .. 5000 ppm 1 ppm ±5 ppm 0 .. 100 ppm
±5% measured value 101 .. 5000 ppm
NO Low range Electrochemical sensor 0 .. 500 ppm 0.1 ppm ±2 ppm 0 .. 40.0 ppm
±5% measured value 40.1 .. 500.0 ppm
NOx Calculated
SO2 Electrochemical sensor 0 .. 5000 ppm 1 ppm ±5 ppm 0 .. 100 ppm
±5% measured value 101 .. 5000 ppm
SO2 Low range Electrochemical sensor 0 .. 500 ppm 0.1 ppm ±2 ppm 0 .. 40.0 ppm
±5% measured value 40.1 .. 500.0 ppm
NO2 Electrochemical sensor 0 .. 1000 ppm 1 ppm ±5 ppm 0 .. 100 ppm
±5% measured value 101 .. 1000 ppm
NO2 Low range Electrochemical sensor 0 .. 500 ppm 0.1 ppm ±2 ppm 0 .. 40.0 ppm
±5% measured value 40.1 .. 500.0 ppm
CxHy Pellistor sensor 0 .. 5.00% vol 0.01% vol ±0.25% vol
CO2 Calculated 0 .. 99.9% vol 0.1% vol
CO2 NDIR sensor 0 .. 20.0% vol 0.1% vol ±0.3% vol 0.00 .. 6.00 %
±5% measured value 6.01 .. 20.0 %
Air temperature TcK sensor -20.0 .. 120.0 °C 0.1 °C ±0.5 °C
Flue gas temperature TcK sensor -100.0 .. 1250.0 °C 0.1 °C ±0.5 °C 0 .. 100 °C
±0.5% measured value 101 .. 1250 °C
Pressure
UNI 10845 Piezoelectric sensor -250.0 .. 250.0 Pa
0.1 Pa
±0,5 Pa -10.0 .. +10.0 Pa
±2 Pa +10.1 .. +250.0 Pa
±2 Pa -10.1 .. -250.0 Pa
Pressure
(draught & differential) Piezoelectric sensor -10.00 .. 200.00 hPa 0.01hPa
±1% measured value -2.01 .. –10.00 hPa
±0.02 hPa - 2.00 .. +2.00 hPa
±1% measured value +2.01 .. +200.00 hPa
Differential temperature Calculated 0 .. 1250.0 °C 0.1 °C
Air index Calculated 0.00 .. 9.50 0.01
Excess air Calculated 0 .. 850 % 1 %
Stack loss Calculated 0.0 .. 100.0 % 0.1 %
Efficiency Calculated 0.0 .. 100.0 % 0.1 %
Efficiency
(condensing) Calculated 0.0 .. 120.0 % 0.1 %
Smoke index External instrument 0 .. 9

18 K000000000SE 027384 010916
7.0 USING THE FLUE GAS ANALYSER
7.1 Preliminary operations
Remove the instrument from its packing and check it for damage. Make sure that the content corresponds to the
items ordered. If signs of tampering or damage are noticed, notify the SEITRON service centre or agent
immediately and keep the original packing. A label at the rear of the analyser bears the serial number. This serial
number should always be stated when requesting technical assistance, spare parts or clarification on the product
or its use.
Seitron maintains an updated database for each and every instrument.
Before using for the first time we recommend you charge the batteries completely.
7.2 WARNING
 Use the instrument with an ambient temperature between -5 and +45°C.
 When it has finished being used, before turning the instrument off remove the probe and let is aspirate ambient
clean air for at least 30 seconds to purge the pneumatic path from all traces of gas.
 Do not use the instrument if the filters are clogged or damp.
 Before putting the measuring probe back in its case after use, make sure it is has cooled down enough and
there is no condensate in the tube. It might be necessary to periodically disconnect the filter and the
condensate separator and blow compressed air inside the tube to eliminate all residues.
 Remember to have the instrument checked and calibrated once a year in order to comply with the existing
standards.
IF THE INSTRUMENT HAS BEEN KEPT AT VERY LOW TEMPERATURES (BELOW
OPERATING TEMPERATURES) WE SUGGEST WAITING A WHILE (1 HOUR) BEFORE
SWITCHING IT ON TO HELP THE SYSTEM’S THERMAL BALANCE AND TO PREVENT
CONDENSATE FORMING IN THE PNEUMATIC CIRCUIT.
IF ENABLED BY FACTORY OR THE ASSISTANCE CENTER, FROM 30 DAYS PRIOR TO
THE CALIBRATION TO EXPIRE, THE DISPLAY WILL SHOW A MESSAGE TO REMIND THE
USER THAT THE INSTRUMENT HAS TO BE SENT TO THE ASSISTANCE CENTER.
Example:
Password
Reminder
15/01/14
10:00
0 0 0 0
OK
Password
Reminder
15/01/14
10:00
1 1 1 1
OK
OK
Enter the reminder
menu password
1111.
15/01/14
10:00
Reminder
Calibration
F1
F3: Ignore forever
F2: Ignore
F1: Info service
Expiration date: 15/07/16
Annual calibration reminder.
F2 F3
CONTEXT KEY FUNCTION
Displays the informations about the assistance center.
Ignores temporarily the message. Next time the instrument will be turned
on, the remainder will be displayed again.
Ignores permanently the message.
F1
F2
F3
Press
and
hold for
a few
seconds

19 K000000000SE 027384 010916
7.3 Analyser power supply
The instrument contains a high-capacity LiIon rechargeable battery.
The battery feeds the instrument, built-in printer and any other probes or remote devices that may be connected.
The instrument runs for approximately 18 hours if the printer is not used. Should the battery be too low to effect
the necessary measurements, the instrument can be hooked up to the mains via the power pack provided,
allowing operations (and analysis) to proceed. The battery will be recharged whilst the instrument is being used.
The battery charging cycle takes up to 3 hours for a complete charge and finishes automatically.
ATTENTION: If the instrument is not going to be used for a long time we suggest recharging it at least
once every 4 months.
7.3.1 Checking and replacing the batteries
The state of the internal battery can be displayed during the auto-calibration of the device and possibly later via
the information menu.
In the menu, the remaining battery power is displayed.
If battery charge appears to be low, let it discharge completely and then carry out a full 100% charge cycle by
connecting the instrument to the power pack for 3 hours.
If the problem persists, replace the battery pack with a SEITRON original or contact the SERVICE CENTRE to
carry out the necessary repairs.
The average life of the battery pack is 500 charging/discharging cycles. To exploit this characteristic to the full it
is advisable to always use the instrument powered by the internal batteries and to charge it only when it gives the
battery flat message.
7.3.2 Use with external power pack
The instrument can work with the batteries fully discharged by connecting the external power pack provided.
THE POWER SUPPLY/BATTERY CHARGER IS A SWITCHING TYPE ONE.
THE APPLICABLE INPUT VOLTAGE RANGES BETWEEN 90Vac AND 264Vac.
INPUT FREQUENCY: 50-60Hz.
THE LOW VOLTAGE OUTPUT IS 5 VOLT WITH AN OUTPUT CURRENT GREATER THAN
1.5A.
LOW VOLTAGE POWER CONNECTOR: A-TYPE USB CONNECTOR + CONNECTION CABLE WITH B-
TYPE PLUG.
THE INSTRUMENT IS SHIPPED WITH THE BATTERY HALF CHARGED SO IT IS
ADVISABLE TO CHARGE IT COMPLETELY BEFORE USE, TAKING 3 HOURS.
IT IS ADVISABLE TO CHARGE THE BATTERY AT AN AMBIENT TEMPERATURE RANGING
BETWEEN 10°C AND 30°C.

20 K000000000SE 027384 010916
7.4 Connection diagram
AAC SO01
AA SF--A
AAC TA03A
AAC KP01
AA AL05
AA SA08