Seitron CHEMIST 900 RACK Guide de l'utilisateur

TABLE OF CONTENTS

IMPORTANT INFORMATION 07

Information about this manual 07

Safety warnings 07

SAFETY 08

Intended use of the product 08

Improper use of the product 08

GENERAL FEATURES 09

Overview of the Flue Gas Analyzer 09

DESCRIPTION OF THE PRODUCT 11

Operating principle 11

CO Dilution 11

Types of fuels 11

Peltier module condensation assembly (Cooler) 11

Remote condensate sink 11

External dust filters 11

Infrared bench protection dust filters 12

Remote air inlet 12

Pressure sensor 12

Gas suction pump 12

Condensate drain pump 12

Draft measurement with automatic sensor zeroing 12

Temperature measurements 12

Bluetooth® data link 12

Available software 13

ELECTRICAL WIRINGS 14

Warnings 14

Wiring the signal lines 15

Connection of the serial port RS485 according to MODBUS® RTU 16

Analog outputs through 37 poles connector 17

COMPONENTS DESCRIPTION 18

Front cover 18

Back cover 20

TECHNICAL FEATURES 22

Technical features 22

External size 24

Measurement and Accuracy Ranges 25

STARTUP 27

Preliminary operations 27

Analyzer power supply 27

Warnings 27

CONNECTIONS 29

Wiring diagram - Front cover 29

PC connection with the provided USB cable 29

PC connection with Ethernet cable 30

Wiring diagram - Back panel 31

Remote air intake filter assembly 31

Optional junctions assembly 32

Wiring diagram 33

Pitot tube 34

Features of the smoke suction line 35

Features of the heated smoke suction line (for the meas. of NOx - SOx)

Combustion air temperature probe 37

Draft measurement 37

Remote air suction spots 37

POWER ON - OFF 38

Starting the device 38

CONFIGURATION 39

Configuration Menu 39

Configuration=>Analysis 40

Configuration=>Analysis=>Fuel 42

Configuration=>Analysis=>Condensation 43

Configuration=>Analysis=>O2 reference 44

Configuration=>Analysis=>NOx/NO ratio 45

Configuration=>Analysis=>Measurement units 46

Configuration=>Analysis=>Measures list 47

Configuration=>Analysis=>Autozero 49

Configuration=>Analysis=>Other configurations 50

Configuration=>Analysis=>Other conf.=>Sample processing 51

Configuration=>Analysis=>Other conf.=>Sample selection 52

Configuration=>Instrument 53

Configuration=>Instrument=>Bluetooth®54

Configuration=>Instrument=>Time/Date 55

Configuration=>Instrument=>Brightness 56

Configuration=>Instrument=>Buzzer 57

Configuration=>Instrument=>Pump 58

Configuration=>Instrument=>4..20mA 59

Configuration=>Instrument=>CO sensor protection 60

Configuration=>Instrument=>Other configs 61

Configuration=>Instrument=>NDIR bench 62

Configuration=>Instrument=>MODBUS 63

Configuration=>Operator 64

Configuration=>Alarms 66

Configuration=>Information 68

Configuration=>Information=>Sensors 69

Configuration=>Information=>Info Service 70

Configuration=>Information=>Reminder 71

Configuration=>Diagnostic 72

Configuration=>Diagnostic=>Sensors 73

Configuration=>Diagnostic=>Pump 74

Configuration=>Diagnostic=>On site calibration 75

On site Calibration procedure 76

Configuration=>Diagnostic=>Hardware 83

Configuration=>Diagnostic=>NDIR bench 84

Configuration=>Diagnostic=>Sample processing 85

Configuration=>Language 86

Configuration=>Restore 87

MEASUREMENTS 88

Measurements menu 88

Measurements=>Velocity 89

EMISSION ANALYSIS 90

Preliminary operations 90

Emission analysis mode configuration 90

Performing the emissions analysis 95

SENSORS 96

Graphic display visualization 96

Sensors arrangement in the sensors compartment 97

Sensor types and relevant positioning 98

Gas sensors life 99

Gas sensors life table 99

Expandability to 3 sensors 100

CxHy sensor for measurement of the unburnt hydrocarbons (Pellistor) 101

Installing the CxHy sensor 101

CO2 sensor for Carbon Dioxide measurement (NDIR single sensor) 102

Installing the CO2 sensor 102

TABLE OF CONTENTS

NH3 sensor for ammonia gas measurement in combustion processes 103

NDIR infrared bench 104

MAINTENANCE 105

Routine maintenance 105

Preventive maintenance 105

Internal parts access 106

Cleaning external dust filters 107

External dust filter replacement on IR line 108

Fuse replacement 109

Gas sensors replacement 110

Firmware update 115

TROUBLESHOOTING 116

Troubleshooting guide 116

SPARE PARTS AND SERVICE 118

Spare parts 118

Accessories 119

Service centers 120

ANNEX A - Fuels coefficients and Formulas 121

ANNEX B - Combustion analysis according to UNI10389-1122

ANNEX C - Optional measures list 123

ANNEX D - Declaration of Conformity 125

WARRANTY CERTIFICATE 127

Any reproduction, in whole or in part, of this document by any means (including

photocopying or storing it in any electronic device) and the transmission of the latter to

third parties in any way, including electronically, is strictly forbidden without the prior

written approval by SEITRON S.p.A. a socio unico

TABLE OF CONTENTS

1.1 Information about this manual

 This manual describes the operation and the characteristics and the maintenance of the Combustion Analyzer

Chemist 900 RACK.

 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

Information on LCD

Ensure correct disposal

Touch keyboard

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.

26/08/19

09:05

2.0 SAFETY

2.1 Proper use of the product

This chapter describes the areas of application for which the CHEMIST 900 RACK is intended.

All products of the series CHEMIST 900 RACK are stationary measuring devices, in a 19” metal case, for rack

mounting; these instruments are capable of measuring gas in the following plants:

 Boilers (fuel oil, gas, wood, coal)

 Low-temperature condensing boilers

 Gas heaters

 Emissions control measurements

 Installations compliance tests

 Gas turbines

 Gas engines

 Furnaces and boilers technical assistance

 Technical assistance in industrial heating systems

 Process control

2.2 Improper use of the product

The use of CHEMIST 900 RACK 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 900 RACK should not be used:

 as an alarm device for safety purposes

 in classified zones with explosion risk (ATEX or equivalent)

3.1 General overview of the Analyzer

The CHEMIST 900 RACK is an industrial tool for measuring polluting gases.

The instrument is featured with:

- Rack mounting 19" with 4 HE for the mounting of adjustable frames, racks with or without telescopic guides.

Alternatively, the instrument features four rubber feet on the lower surface, so that it can stand horizontally on

a flat surface.

- Pneumatic circuit which can accommodate up to 3 sensors of the FLEX-sensors series.

- Housing for fitting an NDIR (infrared) bench. Depending on the instrument configuration, it is able to measure

one or more of the following gases: CO - CO2 - CH4.

- Female pneumatic connectors with 1/8 GAS BSPP thread.

- The gas autozero cycle can be performed with the probe inserted in the stack.

- The autozero of the pressure sensor (piezoresistive, temperature compensated) can also be performed with

the gas probe inserted in the stack.

- Up to 4 alarms with visual and acoustic signals are programmable for each measurement parameter.

- Intuitive user interface: the instrument can be used without the support of the user manual.

- Wide (55x95 mm) and bright TFT color display which delivers great readability thanks to the zoom function and

an efficient backlight.

- Serial communication port type RS485 according to protocol MODBUS® RTU in order to connect to the PC for

the analysis reading.

- USB communication port type A, for PC communication with the dedicated software provided with the

instrument, to archive the analysis and the configuration of the main parameters for the combustion analysis.

The CHEMIST 900 RACK allows to memorize and archive the analysis data exclusively from remote, using a

PC with the software Chemist Smart Analysis previously installed.

- 4 .. 20 mA isolated output (4 configurable channels - Active loop)

- Four alarm relays outputs SPDT, AC/DC 24V 1A.

Main functions:

- Gas analysis:

- Comes with 15 most common fuel parameters (such as natural gas, LPG, gas oil and fuel oil).

- Possibility to store in memory the parameters for 32 further fuels, once their chemical composition is known.

- Monitoring of pollutants (combustion)

Measurable gases:

- O2

- CO/H2

- CO

- NO

- NO2

- SO2

- H2S

- NH3

- H2

- CO2

- CH4

Measurements:

- Draft in the stack

- Combustion air temperature

- Smoke temperature

- Air speed for air or flue gas leaving the stack with the use of Pitot tube

3.0 GENERAL FEATURES

Maintenance:

- The sensors can be replaced by the user without sending back the instrument to the technical assistance

center for the sensors are provided pre-calibrated, while the NDIR bench can’t be replaced directly by the user,

but only in an authorized Seitron assistance center.

- To get an accurate measure, the instruments needs an annual calibration, which can be performed on the field

through the procedure “Calibration On Site” and the use of gas mixtures special samples.

Certificate of calibration

The instruments comes with an ISO 9001 calibration certificate.

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