Seitron CHEMIST 900 RACK Use And Maintenance Manual
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Seitron CHEMIST 900 RACK Use And Maintenance Manual

Gas analyzer
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  • Page 2 SEITRON S.p.A. a socio unico - ALL RIGHTS RESERVED - 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...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Important information Information about this manual Danger levels and other symbols Safety Proper use of the product Improper use of the product ELECTRICAL CONNECTIONS Electrical connections Wiring the signal lines ® Connection of the serial port RS485 half duplex according to MODBUS Analog outputs through 37 poles connector CONNECTIONS Connection to PC via supplied USB cable...
  • Page 4 Power on - off Starting the device Configuration Configuration menu Configuration=>Analysis Configuration=>Analysis=>Fuel Configuration=>Analysis=>Condensation Configuration=>Analysis=>O Reference Configuration=>Analysis=>NO /NO Ratio Configuration=>Analysis=>Measure units Configuration=>Analysis=>Measure list Configuration=>Analysis=>Autozero Configuration=>Analysis=>Other configs Configuration=>Analysis=>Other configs.=>Sample processing Configuration=>Analysis=>Motor eff. Configuration=>Instrument Configuration=>Instrument=>Time/Date Configuration=>Instrument=>Brightness Configuration=>Instrument=>Buzzer Configuration=>Instrument=>Pump Configuration=>Instrument=>4..20mA Configuration=>Instrument=>CO protection Configuration=>Instrument=>NDIR Bench Configuration=>Instrument Configuration=>Instrument=>MODBUS Configuration=>Operator...
  • Page 5 Annex A - Fuel Coefficients and formulas Annex B - Law directions Annex C - Optional measures list WARRANTY CERTIFICATE WARNING We encourage you to consult the owner's manual in its most up-to- date version by downloading it from the website www.seitron.com.

  • Page 7: Important Information

    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.

  • Page 8: Safety

    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: ...

  • Page 9: Electrical Connections

    2.0 ELECTRICAL CONNECTIONS...

  • Page 11: Electrical Connections

    2.1 Electrical connections WARNING - CONNECT THE DEVICE TO MAINS POWER THROUGH A BI-POLAR SWITCH COMPLYING WITH CURRENT STANDARDS AND WITH CONTACTS APERTURE DISTANCE OF AT LEAST 3 MM IN EACH POLE. - THE INSTALLATION AND THE ELECTRICAL WIRING OF THE DEVICE MUST BE PERFORMED BY QUALIFIED TECHNICIAN AND IN CONFORMITY WITH CURRENT STANDARDS.

  • Page 12: Wiring The Signal Lines

    2.2 Wiring the signal lines WARNING UNSUITABLE POWER VOLTAGE THE POWER VOLTAGE AT 24 V/1A MUST BE A SAFETY LOW VOLTAGE AT LIMITED POWER WITH SAFE ELECTRICAL SEPARATION (SELV). CONNECT THE SIGNAL LINES ONLY TO DEVICES THAT ARE FEATURED WITH A SAFE ELECTRICAL SEPARATION ON THEIR POWER SUPPLY.

  • Page 13: Connection Of The Serial Port Rs485 Half Duplex According To Modbus® Rtu

    2.3 Connection of the serial port RS485 half duplex according to MODBUS® RTU protocol The CHEMIST 900 RACK features a serial output RS485 half duplex, which can be used to connect the ® instrument to a PC, through the communication protocol MODBUS RTU.

  • Page 14: Analog Outputs Through 37 Poles Connector

    2.4 Analog outputs through 37 poles connector (8 outputs 4..20mA and 1 relay output) The CHEMIST 900 RACK features: Eight 4..20mA outputs, to which it is possible to associate, via the parameter "4..20mA configuration," one of the measurements that the instrument can make, in order to translate a measurement into a current value available at the output.
  • Page 15 This operation is not always necessary. It becomes essential only when Chemist 900 Rack is connected via the 4 ... 20 mA output to an UNISOLATED PC or PLC. Lack of isolation of the latter, in fact, causes instability of the current signal and consequently incorrect measurement.

  • Page 17: Connections

    3.0 CONNECTIONS...

  • Page 19: Connection To Pc Via Supplied Usb Cable

    3.1 Connection to PC via supplied USB cable...

  • Page 20: Connection To Pc Via Ethernet Cable

    PARAMETRS CONFIGURATION, CAN ONLY HAPPEN VIA THE PC, HAVING PREVIOUSLY INSTALLED THE “CHEMIST SMART ANALYSIS” SOFTWARE PROVIDED WITH THE INSTRUMENT. - IN ORDER TO CONNECT THE CHEMIST 900 RACK TO THE ETHERNET IT IS NECESSARY TO PROPERLY CONNECT TWO USB => ETHERNET CONVERTERS.

  • Page 21: Wiring Diagram - Back Panel

    3.3 Wiring diagram - Back Panel 3.3.1 Remote air intake filter assembly SEAL WITH THREAD LOCKER OR TEFLON WARNING - USING THE DUST FILTER ASSEMBLY IS COMPULSORY TO GRANT THE CORRECT OPERATION OF THE INSTRUMENT.

  • Page 22: Junctions Assembly - Optional

    3.3.2 Junctions assembly - optional Male junction 1/8” GAS BSPP → hose coupling Ø external 6 mm (6 pieces provided) Male junction M5 → hose coupling Ø external 4 mm (1 piece provided) Male junction 1/8” GAS BSPP → female Ø 9 mm (1 piece provided) Male junction 1/8”...

  • Page 23: Wiring Diagram

    3.3.3 Wiring diagram - Back cover Power supply 37 poles connector (8 4..20mA outputs and 1 relay output) 100 .. 240V~, 50 .. 60Hz Make available for the user 8 4..20mA outputs and 1 relay With cable and IEC C14 plug. output with voltage free changeover contacts.

  • Page 24: Connection To The Nitrogen/Synthetic Air Cylinder

    3.3.4 Connection to the nitrogen/synthetic air cylinder. NITROGEN SYNTHETIC AIR FLOWMETER CYLINDER 40 mbar 2 l/m OPTIONAL CONNECTOR ASSEMBLY (INCLUDED) SEAL WITH THREADLOCKER OR TEFLON MALE 1/8 GAS BSPP → MALE ø 6mm...

  • Page 25: Pitot Tube And Flue Gas Sampling Probe Connection

    3.3.5 Pitot Tube and Flue Gas Sampling Probe Connection In order to perform combustion analysis and at the same time carry out flue gas velocity measurement, it is necessary to connect the flue gas sampling probe and Pitot tube to the instrument at the same time. Mounting pneumatic adapters to the instrument If a Pitot tube and a flue gas sampling probe equipped with quick couplings are used, the three adapters supplied with the instrument must be mounted on the instrument, as indicated in Section 3.3.2 Fitting Fittings - Optional.

  • Page 26: Pitot Tube

    Pitot tube By using a Pitot tube and a thermocouple type Tc-K, the instrument can also measure gas flow velocity (air/ smoke). Connecting the Pitot tube to the instrument - Connect the Pitot tube (optional) to the inputs P+ and P- which are normally used for measuring the differential pressure.

  • Page 27: Features Of The Smoke Suction Line

    Features of the smoke suction line General description The thermocouple type K (Ni-NiCr) provides stable temperature measurements at high temperature. The instrument is internally equipped with a Pt100 thermistor, allowing to measure the internal temperature; this sensor is also used to measure the temperature of the room where the instrument is placed. If it is needed to detect the temperature of the combustion air directly from inside the suction duct, the optional remote Tc-K sensor must be used.

  • Page 28: Features Of The Heated Smoke Suction Line (For The Measurement Of Nox - Sox)

    Features of the heated smoke suction line (for the measurement of NOx - SOx) The heated line is used for application where it is needed to perform the measure of NOx/SOx for long time intervals. An heated line maintains the gas temperature above the dew point until the gas gets to the internal cooler.

  • Page 29: Combustion Air Temperature Probe

    Combustion air temperature probe This probe is used to measure the combustion air temperature, if the pick up point of the latter is in a different area in relation to where the instrument is installed. Technical features Temperature sensor: Sensor element: Thermocouple type K (Ni-NiCr) - IEC584 - class 1 Connector: TC-K mignon...

  • Page 31: Product Use

    4.0 PRODUCT USE...

  • Page 33: Technical Features

    4.1 Technical features Power supply: 100 .. 240V~, 50 .. 60Hz With power cable with IEC C14 socket. Power absorption at 230V: 100 VA Fuses: 2 x 4A Delayed. Size: 5x20mm. —————————————————————————————————————————————————— Display: TFT 4.3”, 272 x 480 pixels graphic color with backlight. ——————————————————————————————————————————————————...
  • Page 34 Sample treatment* Cooler Drying system: Quick moisture condensation with cyclone Type: Peltier module Cooler set-point temperature: +5° C Max temp. deviation from the set-point: +10° C Condensate drainage: With diaphragm pump 150ml/min Duty cycle diaphragm pump: 30s on - 30s off Warm up time: ~ 15 ..

  • Page 35: Product Features

    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.

  • Page 36: Working Principle

    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”...

  • Page 37: Peltier Module Condensation Assembly (Cooler)

    The gas sample needs to be suitably dehumidified and purified of solid combustion residues before being analyzed (“dry analysis”). For this purpose, the CHEMIST 900 RACK is equipped with a Peltier condensation assembly; this has the goal of quickly cooling the gas sample down to a temperature of 5° C.

  • Page 38: Smoke Suction Pump

    This feature is particularly useful when the analysis in taken in 'data logger' mode. 5.15 Temperature measurements The CHEMIST 900 RACK performs temperature measurements using Tc-K probes, to be connected to input T1 or T2 placed on the back of the instrument.

  • Page 39: External Size

    5.19 External size Size: RACK 19” height 4U...

  • Page 40: Measurement And Accuracy Ranges

    5.20 Measurement and Accuracy Ranges MEASUREMENT SENSOR RANGE RESOLUTION ACCURACY Electrochemical sensor 0 .. 25.0% vol 0.1% vol ±0.2% vol ±10 ppm 0 .. 200 ppm Electrochemical sensor 0 .. 8000 ppm 1 ppm ±5% measured value 201 .. 2000 ppm with H compensation ±10% measured value...
  • Page 41 MEASUREMENT SENSOR RANGE RESOLUTION ACCURACY ±0.3% vol 0.00 .. 8.00 % 0 .. 50.0% vol 0.1% vol ±5% measured value 8.01 .. 40.00 % ±10% measured value 40.01 .. 50.00 % 1 ppm ±50ppm 0.00 .. 2500 ppm NDIR Bench 250000 ppm 10 ppm ±3% measured value...

  • Page 42: Components Description

    COMPONENTS DESCRIPTION 6.1 Front cover LEGEND: Polycarbonate touch keypad and relevant main functions: FUNCTION FUNCTION Activates the context keys shown on the display Select and/or Modify Access to the Configuration menu Access to the Measurements menu Confirm settings Quits the current screen Display LCD 128 x 64 pixel backlit color display with 21 characters available and 8 lines.
  • Page 43 USB connector (type B) Connector for connecting the instrument to a personal computer running Microsoft Windows 7 or higher, after installing the appropriate Seitron Smart Analysis software supplied with the instrument. Power On/Off button To turn on or off the analyzer hold this key down for a few seconds.

  • Page 44: Back Panel

    6.2 Back panel LEGEND: Connector 'AC LINE - 100..240V~' Plug IEC C14 to connect the power cable to the instrument, provided with the instrument itself. On the plug there is a fuse-holder hidden under a flap, containing 2 fuses 5x20 4A T. Connection for grounding of the instrument.
  • Page 45 Pneumatic connector 'P-' - female connection 1/8 GAS BSPP. Negative input (P-) to be used for the draft measurement. Pneumatic connector 'P+' - female connection 1/8 GAS BSPP. Positive input (P+) to be used for the measurement of the pressure in general. The inputs "P+"...

  • Page 46: Startup

    Remove the instrument from the packaging used for shipment and make an initial inspection of it. Check that the contents correspond to what was ordered. If you notice any signs of tampering or damage, report it immediately to the SEITRON Service Center or its Representative Agent, retaining the original packaging.
  • Page 47 STARTING FROM 30 DAYS BEFORE THE ANNUAL CALIBRTATION DEADLINE, THE DISPLAY WILL SHOW A MESSAGE REMINDING THE USER TO SEND THE INSTRUMENT TO THE SERVICE CENTER. Example: 26/08/19 09:05 Reminder Calibration Annual calibration reminder Expiration date: 01/09/19 F1: Info service Press F2: Ignore F3: Ignore forever...

  • Page 48: Power On - Off

    POWER ON - OFF Starting the device 26/08/19 26/08/19 09:05 09:05 190.1 190.1 As soon as it is 15.4 15.4 powered the Instrument DOES NOT turn on automatically 91.4 91.4 1.25 1.25 74.7 74.7 During autozero, it is possible to use only the menus that do not require autozero. ERROR This error message is displayed if the autozero of the device is not Autozero failed.

  • Page 49: Configuration

    CONFIGURATION 9.1 Configuration menu 26/08/19 FUNCTION 09:05 Activate the context keys shown on the display. Returns to the previous screen. CONTEXT KEY FUNCTION ◄ Selects the available parameters. Enters in the selected parameter setting. ► Selects the available parameters. PARAMETER DESCRIPTION Through this menu the user can configure the available parameters for a proper combustion analysis.

  • Page 50: Configuration=>Analysis

    Configuration→Analysis → 26/08/19 09:05 FUNCTION Activate the context keys shown on the display. Returns to the previous screen. CONTEXT KEY FUNCTION ◄ Selects the available parameters. Enters in the selected parameter setting. ► Selects the available parameters. PARAMETER DESCRIPTION Lets the user select the type of fuel to be used during analysis. Fuel selection can be done either from this menu or during the analysis itself.
  • Page 51 → PARAMETER DESCRIPTION Through this submenu the user can modify the measurement units for all the analysis parameters, depending on how they are used. SEE SECTION 9.2.5. Measure units In this sub menu the user can see the list of measurements that the device can perform. With the interactive keys, the user can add, delete or move a selected measurement.

  • Page 52: Configuration=>Analysis=>Fuel

    9.2.1 Configuration→Analysis→Fuel → 26/08/19 26/08/19 10:04 10:04 FUNCTION Activate the context keys shown on the display. The arrows select each line displayed. Confirms the choice of fuel to be used during the analysis. Returns to the previous screen. CONTEXT KEY FUNCTION Shows the details of the selected fuel (see example below).

  • Page 53: Configuration=>Analysis=>Condensation

    9.2.2 Configuration→Analysis→Condensation → 26/08/19 10:09 Altitude above sea level Relative humidity of air FUNCTION Activate the context keys shown on the display. The arrows select each line displayed (the selected line is red). In edit mode, it scrolls through the suggested values. Enters the modify mode for the selected parameter, then confirms the modification.

  • Page 54: Configuration=>Analysis=>O Reference

    9.2.3 Configuration→Analysis→Reference O → 26/08/19 10:15 Oxygen rate on NO measurement Oxygen rate on NH measurement Oxygen rate on H measurement Oxygen rate on CO measurement Oxygen rate on CO measurement Oxygen rate on CH measurement FUNCTION Activate the context keys shown on the display. Keys '▲' and '▼' select any line shown on the display (the selected line is displayed in red).

  • Page 55: Configuration=>Analysis=>No

    9.2.4 Configuration→Analysis→NO /NO ratio → 26/08/19 10:15 FUNCTION Activate the context keys shown on the display. When in modify mode, sets the desired value. Enters edit mode of the selected element and then confirms the change. When pressed in modify mode cancels the selection made, otherwise returns to the previous screen.
  • Page 56 9.2.5 Configuration→Analysis→Measurement units → 26/08/19 10:15 Measurement unit can be set as: ppm - mg/m - mg/kWh - g/GJ - g/m - g/kWh - % - ng/J Measurement unit can be set as: ppm - mg/m - mg/kWh - g/GJ - g/m - g/kWh - % - ng/J Measurement unit can be set as: ppm - mg/m - mg/kWh - g/GJ - g/m...

  • Page 57: Configuration=>Analysis=>Measure List

    9.2.6 Configurazione→Analisi→Lista misure → 26/08/19 10:15 FURTHER DETAILS ANNEX C FUNCTION Activate the context keys shown on the display. Select each line displayed (the line selected is red). In edit mode, it sets the desired value. When pressed in modify mode cancels the selection made, otherwise returns to the previous screen.
  • Page 58 Example: → 1. Add a measurement to the list - example 26/08/19 26/08/19 26/08/19 26/08/19 10:15 10:15 10:15 10:15 ▲ 2. Change the position of a measurement - example 26/08/19 26/08/19 26/08/19 26/08/19 10:15 10:15 10:15 10:15 ▲ » 3. Delete a measurement from the list - example 26/08/19 26/08/19 26/08/19...

  • Page 59: Configuration=>Analysis=>Autozero

    9.2.7 Configuration→Analysis→Autozero → 26/08/19 10:15 Duration of autozero, expressed in seconds. Duration of the cleaning cycle, expressed in seconds. Turns On / Off the automatic autozero of the instrument. Setting of the time interval between an autozero and the next, expressed in minutes: 0 ..

  • Page 60: Configuration=>Analysis=>Other Configs

    9.2.8 Configuration→Analysis→Other configs → 26/08/19 10:15 Motor eff. FUNCTION Activate the context keys shown on the display. Returns to the previous screen. CONTEXT KEY FUNCTION ◄ Selects the available parameters. Enters the selected parameter. ► Selects the available parameters. PARAMETER DESCRIPTION In this parameter it is possible to activate/deactivate the cooler.

  • Page 61: Configuration=>Analysis=>Other Configs.=>Sample Processing

    9.2.9 Configuration→Analysis→Sample processing → 26/08/19 10:15 Available settings: on (Cooler is switched on) or off (Cooler is switched off). Available settings: on (Heated Tube switched on) or off (Heated Tube switched off). Heated tube temperature: 90°C .. 130°C. WARNING The activation of the Cooler system is indicated on the display with the icon “ “...

  • Page 62: Configuration=>Analysis=>Motor Eff

    9.2.10 Configuration→Analysis→Motor eff. → Configuration Motor eff. Set the thermal efficiency of the motor between 0.15 and 0.45 Motor eff. 0.25 FUNCTION Activate the context keys shown on the display. Enters the modify mode, then confirms the modification. When pressed in modify mode, it cancels the selection made or returns to the previous screen.

  • Page 63: Configuration=>Instrument

    Configuration→Instrument → FUNCTION Activate the context keys shown on the display. Returns to the previous screen. CONTEXT KEY FUNCTION ◄ Selects the available parameters. Enters in the selected parameter setting. NDIR bench ► Selects the available parameters. PARAMETER DESCRIPTION This allows the current time and date to be set. The user can select the date and hour format either in EU (European) or USA (American) mode.

  • Page 64: Configuration=>Instrument=>Time/Date

    9.3.1 Configuration→Instrument→Time/Date → 26/08/19 10:15 Time, in the chosen format Date, in the chosen format Date format: EU (Europe) or USA (America) Time format: 24h or 12h FUNCTION Activate the context keys shown on the display. The arrows '▲' and '▼' select each line displayed (the selected line is highlighted in red).

  • Page 65: Configuration=>Instrument=>Brightness

    9.3.2 Configuration→Instrument→Brightness → 26/08/19 10:15 FUNCTION Activate the context keys shown on the display. Increases or decreases the brightness of the display. Confirms the modification. When pressed in modify mode cancels the selection made, otherwise returns to the previous screen. CONTEXT KEY FUNCTION ◄...

  • Page 66: Configuration=>Instrument=>Buzzer

    9.3.3 Configuration→Instrument→Buzzer → 26/08/19 10:15 Available settings: the buzzer is enabled (key tones and signaling of faults/alarms are enabled). limited: the buzzer is enabled in a limited mode (key tones are disabled, while signaling of faults/alarms is enabled). off: the buzzer is disabled. FUNCTION Activate the context keys shown on the display.

  • Page 67: Configuration=>Instrument=>Pump

    9.3.4 Configuration→Instrument→Pump → 26/08/23 10:15 Suction Peristaltic FUNCTION Activate the context keys shown on the display. When in modify mode, sets the desired value. Enters edit mode of the selected element and then confirms the change. When pressed in modify mode cancels the selection made, otherwise returns to the previous screen.

  • Page 68: Configuration=>Instrument=>4

    9.3.5 Configuration→Instrument→4..20mA → “----”: Channel NOT configured WARNING (default setting). “OK”: Channel configured. - If the measurement unit of the observed parameter is changed, it is necessary to reconfigure the set limits. - If the parameter “Limits” is set to manual, the suggested values are the ones related to the automatic setting.

  • Page 69: Configuration=>Instrument=>Co Protection

    9.3.6 Configuration→Instrument→CO Protection → 26/08/19 10:15 Available settings : auto, on or off Threshold that activates the CO sensor protection (available only if the parameter "Mode" is set to "auto"). WARNING! The activation of the CO sensor protection is shown on the display with the icon "...

  • Page 70: Configuration=>Instrument=>Ndir Bench

    9.3.7 Configuration→Instrument→NDIR Bench → FUNCTION Activate the context keys shown on the display. In edit mode, it sets the desired value. Enters edit mode of the selected element and then confirms the change. When pressed in modify mode cancels the selection made, otherwise returns to the previous screen.

  • Page 71: Configuration=>Instrument

    9.3.8 Configuration→Instrument → FUNCTION Activate the context keys shown on the display. Returns to the previous screen. CONTEXT KEY FUNCTION ◄ Select the available parameters. Enters the selected parameter. ► Select the available parameters. PARAMETER DESCRIPTION The instrument is featured with the serial output RS485 which is used to connect the instrument ®...

  • Page 72: Configuration=>Instrument=>Modbus

    9.3.9 Configuration→Instrument→Modbus → Communication speed (Available options: 4800 - 9600 - 19200 - 38400). ® Address that identifies the instrument in the MODBUS protocol. Answer delay to the slave device call. WARNING - When the MODBUS parameters are modified, it is necessary to reboot the instrument. - The instrument reboot must be performed by pressing the on/off key on the front cover;...

  • Page 73: Configuration=>Operator

    Configuration→Operator → 26/08/19 10:15 FUNCTION Activate the context keys shown on the display. In "edit text": Moves the cursor on the box corresponding to the letter or number required to form the word. In "Operator Configuration": Scrolls through the available operators. In "edit text": Confirms text input.
  • Page 74 Example: → 1. Edit text 26/08/19 26/08/19 26/08/19 10:15 10:15 10:15 Configuration Edit text Edit text Operator Operator 1  Operator 2 Operator 3 Operator 1_ Operator _ Operator 4 Operator 5 Operator 6 26/08/19 26/08/19 26/08/19 10:15 10:15 10:15 Edit text Edit text Edit text...

  • Page 75: Configuration=>Alarms

    Configuration→Alarms → Configured alarm number Monitored parameter: O - CO - NO - NO - P diff - Plow - P ext - T1 - T2 - Or alarm 7-10* - Or alarm 7-10 Inv* - autozero in progress Type of alarm set: maximum - minimum - off Threshold setting for the previously set alarm: ±999999.999 Measurement unit for the threshold set: ppm, mg/m...
  • Page 76 → Alarm activation flow chart and suggested correctional actions Type MAX. alarm activation Type MIN. alarm activation  Buzzer activation.  Buzzer activation.  The measure blinks on the display.  The measure blinks on the display.  Relay activation. ...

  • Page 77: Configuration=>Information

    Configuration→Information → 26/08/19 FUNCTION 10:15 Activate the context keys shown on the display. Returns to the previous screen. CONTEXT KEY FUNCTION ◄ Selects the available parameters. Enters in the selected parameter setting. ► Selects the available parameters. PARAMETER DESCRIPTION Allows to check which sensors are installed on the instrument, and in which position they are installed on.

  • Page 78: Configuration=>Information=>Sensors

    9.6.1 Configuration→Information→Sensors → 26/08/19 26/08/19 26/08/19 10:15 10:15 10:15 For further information see section 9.7. FUNCTION Activate the context keys shown on the display. Returns to the previous screen. CONTEXT KEY FUNCTION Displays the details of the main features of the sensors installed. Returns to the previous screen.

  • Page 79: Configuration=>Information=>Infoservice

    9.6.2 Configuration→Information→InfoService → 26/08/19 26/08/19 26/08/19 10:15 10:15 10:15 CHEMIST 900 RACK FUNCTION Activate the context keys shown on the display. Returns to the previous screen. CONTEXT KEY FUNCTION Returns to the previous screen.

  • Page 80: Configuration=>Information=>Reminder

    9.6.3 Configuration→Information→Reminder → 26/08/19 10:15 FUNCTION Activate the context keys shown on the display. Sets the password to access the remainder menu. The password is: 2908. Returns to the previous screen. CONTEXT KEY FUNCTION Shows details about the main features of the sensors installed. Returns to the previous screen.

  • Page 81: Configuration=>Diagnostic

    Configuration→Diagnostic → FUNCTION Activate the context keys shown on the display. Returns to the previous screen. CONTEXT KEY FUNCTION ◄ Selects the available parameters. Enters in the selected parameter setting. ► Selects the available parameters. PARAMETER DESCRIPTION Displays information on the state and calibration of the electrochemical sensors: No problem detected absent The sensor was not detected...

  • Page 82: Configuration=>Diagnostic=>Sensors

    Displays the details of the selected sensor (see example below). Returns to the previous screen. Example: 26/08/19 26/08/19 26/08/19 10:15 10:15 10:15 Gas measured Seitron code of the sensor Measurement range Manufacturing date Calibration date Sensor serial number Sensor Is current Sensor Ia current...

  • Page 83: Configuration=>Diagnostic=>Pump

    Configuration→Diagnostic→Pump → 26/08/19 10:15 FUNCTION Activate the context keys shown on the display. When in edit mode, switches between on and off and vice versa. Enters the modify mode for the selected parameter, then confirms the modification. When pressed in modify mode cancels the selection made, otherwise returns to the previous screen.

  • Page 84: Electrochemical Sensors And Ir Bench

    9.10 On-site calibration procedure of electrochemical sensors and IR bench → On-site calibration of gas sensors applies a coefficient to the factory calibration in order to compensate for any current drift due to sensor wear over time. This calibration will be carried out through the use of titrated gas cylinders. All sensors have a factory calibration that will never be erased.

  • Page 85: On-Site Calibration Procedure

    On site calibration procedure → 1. Turn on the instrument 26/08/19 26/08/19 09:05 09:05 21.0 21.0 15.4 15.4 Keep pressed for a few seconds WARNING Make sure that autozero runs in clean air and ends properly. When the autozero is over press the key and select the icon “diagnostics”...
  • Page 86 → Upon entering the on-site calibration menu, the list of installed sensors for which on-site recalibration can be performed is displayed. When a sensor is selected, the recalibration screen displays all the information about the last calibration. Calibrate: saves a new calibration Status: not active: returns to factory calibration...
  • Page 87 → BLENDS TO BE USED For the gas sensors on site calibration, Seitron recommends using known concentration gas mixtures defined in the table below. Alternatively, the gas concentration to be used can be defined by the operator based on the measuring point where the analyzer is normally working.
  • Page 88 → SENSOR MIXTURE WAITING NOTES TO CALIBRATE TIME COMPLEMENTARY CONCENTRATION ACCURACY 1% / 2% (0-500,0 ppm) Depends on the 180 sec. Nitrogen 200 ppm Cod. AACSE25 mixture supplier 1% / 2% (0-1000 ppm) Depends on the 180 sec. Nitrogen 120 ppm Cod.
  • Page 89 → SENSOR MIXTURE WAITING NOTES TO CALIBRATE TIME COMPLEMENTARY CONCENTRATION ACCURACY 1% / 2% Depends on the 180 sec. Nitrogen 1000 ppm mixture supplier 1% / 2% For interfering gas Depends on the 180 sec. 200 ppm mixture supplier (0-500,0 ppm) 1% / 2% Cod.
  • Page 90 → WARNING! SAFETY INSTRUCTIONS FOR AACSE80 BENCH CALIBRATION NOTES SENSOR MIXTURE WAITING TO CALIBRATE TIME COMPLEMENTARY CONCENTRATION ACCURACY Use N CO2 IR 1% / 2% or bottles with (0-50,00%Vol.) Depends on the 180 sec. toxic gas balance Nitrogen Cod. AACSE80 0,45% Vol.
  • Page 91 → PROCEDURE The calibration will be possible only when the status is set to '----' (sensors which never had an on-site  calibration) or it is necessary to set the state to 'not active' (see example). active active not active Enter the concentration value of the applied gas ...
  • Page 92 → The instrument measures the concentration of the applied gas; wait at least 3 minutes for the reading to  stabilize. The reading is shown at the 'Measured gas' line. On site calibration On site calibration On site calibration Sensor Sensor Sensor Calibrate...
  • Page 93 → Detailed calibration of toxic gas sensors with interfering gases The toxic gases sensors with interfering gases are these sensors sensible to other gases. The on site calibration for these sensors also allows to calibrate the interfering gases. Toxic gas sensor table with interfering gases SENSOR INTERFERING GASES The on site calibration procedure for these sensors is the same described in the previous pages regarding the...

  • Page 94: Configuration=>Diagnostic=>Hardware

    9.11 Configuration→Diagnostic→Hardware → 26/08/19 09:05 State of memory State of flash memory State of calibration Version of CPU board Version of motherboard Main power supplies ADC converter input signals FUNCTION Activate the context keys shown on the display. Returns to the previous screen. CONTEXT KEY FUNCTION Returns to the previous screen.

  • Page 95: Configuration=>Diagnostic=>Ndir Bench

    9.12 Configuration→Diagnostic→NDIR bench → 26/08/19 09:05 NDIR bench identification data. NDIR bench information about operational status. FUNCTION Activate the context keys shown on the display. Selects line; the selected line is displayed in red. Activates the context key located in the left side of the display. Returns to the previous screen.

  • Page 96: Configuration=>Diagnostic=>Sample Processing

    9.13 Configuration→Diagnostic→Sample processing → 26/08/19 09:05 FUNCTION Activate the context keys shown on the display. Returns to the previous screen. CONTEXT KEY FUNCTION Returns to the previous screen.

  • Page 97: Configuration=>Language

    9.14 Configuration→Language 26/08/19 09:05 FUNCTION Activate the context keys shown on the display. Scrolls through the available languages. Sets the selected language. Returns to the previous screen. CONTEXT KEY FUNCTION Sets the selected language.

  • Page 98: Configuration=>Restore

    9.15 Configuration→Restore 26/08/19 26/08/19 09:05 09:05 FUNCTION Activate the context keys shown on the display. Starts the factory values reset phase. Exits the current screen without resetting to factory values. CONTEXT KEY FUNCTION Starts the factory data reset phase. Exits the current screen without resetting. Factory reset.

  • Page 99: Measurements

    10.0 MEASUREMENTS 10.1 Measurements Menu 26/08/19 FUNCTION 09:05 Activate the context keys shown on the display. Returns to the previous screen. CONTEXT KEY FUNCTION ◄ Selects the available parameters. Enters in the selected parameter setting. ► Selects the available parameters. PARAMETER DESCRIPTION When a Pitot tube and a Tc-K thermocouple are connected, the instrument is capable to...

  • Page 100: Measurements=>Velocity

    10.1.2 Measurements→Velocity 26/08/19 09:05 Measurement: air or flue gas. Altitude above sea level. Measurement unit selectable across m/s, km/h, fpm, mph. Insert the K-factor of the Pitot tube stated by the tube manufacturer. Temperature acquisition mode: Pitot (with Tc-K thermocouple) or Flue gas probe (or external Tc-K thermocouple). FUNCTION Activate the context keys shown on the display.

  • Page 101: Flue Gas Analysis

    Before turning on the instrument it is important to correctly set the analysis mode, by connecting the instrument to the PC through a USB cable and/or Bluetooth, having previously installed the dedicated PC software “Seitron Smart Analysis” provided with the instrument or downloadable at the web site www.seitron.com.
  • Page 102 Detail of settable data The following shows the main screen of the PC software, Seitron smart analysis, where you will be able to configure the analysis mode. Analysis acquisition mode set to "PC data logger". ANALYSIS ACQUISITION MODE In this menu it is possible to define the analysis...
  • Page 103 Enable automatic autozero: the instrument can self-zero after a predetermined time interval, which can be set by the user in a value between 10 and 9999 minutes. Increases or decreases Interval between one cycle the time interval between of autozero and another autozero cycles.
  • Page 104 Settings Sets the language of the software interface. Allows setting various features of the analysis report, including file format (PDF, xml or csv), creation of a single file for each analysis, etc.. Setting up csv files (with ; separator). Data compilation for report header. This button generates a compressed archive with a set of analyzer-related event logs, should you report a bug please attach the above folder to the report so that technicians can more accurately reconstruct the problem.
  • Page 105 Analysis acquisition mode set to "Periodic" This mode, which is entirely user-configurable, allows pollutant emissions to be monitored at defined time intervals. The start of emission analysis is user-defined (immediate or programmed by day and time). When emission analysis begins, the instrument will automatically proceed to acquire the set number of samples. During the acquisition, you can follow its progress.
  • Page 106 Functioning logic of the “Periodic” analysis mode. DUTY CYCLE T (min.) Smoke pump ON Smoke pump OFF CYCLES DUTY CYCLE 1 DUTY CYCLE 2 DUTY CYCLE 3 Smoke pump ON Smoke pump OFF Smoke pump ON Smoke pump OFF Smoke pump ON Smoke pump OFF...

  • Page 107: Performing The Emission Analysis

    11.1.2 PERFORMING THE EMISSION ANALYSIS By clicking on “Analysis” the instrument shows on real time the emission analysis. By clicking on the symbol “Start recording”, the emission analysis begins according to the settings made; the data of the emission analysis are saved in a csv. file. The instruments bar on the top of the screen, provides all the information on the analysis phase that the instrument is performing.

  • Page 108: Electrochemical Sensors

    12.0 ELECTROCHEMICAL SENSORS The instrument uses pre-calibrated gas sensors from the Flex-Sensor series. The sensors require no special maintenance, but must be replaced periodically when exhausted. Gas measurements are made with electrochemical sensors that are not subject to natural deterioration because they are inherently free from oxidation processes.

  • Page 109: Nh 3 Sensor For Measuring Ammonia In Combustion Processes

    12.3 NH sensor for measuring ammonia in combustion processes USE ONLY WITH SINTERED STEEL FILTER MOUNTED ON THE SMOKE SAMPLING PROBE TIP AND HDPE FILTER CARTRIDGE INSIDE THE FILTER HOLDER. This sensor measures the presence of ammonia (NH ) in flue gases, and since this gas is easily soluble in H arrangements are needed to make the measurement correctly, which must be made: - For short periods of time (1-2 hours).
  • Page 110 Unscrew the dust filter Replace the paper filter with the HDPE filter and screw it back into the appropriate seat. Reassemble the filter by doing the reverse operations described so far.

  • Page 111: Life Of Gas Sensors

    To ensure measurement accuracy, sensors must be recalibrated periodically: recalibration can only be performed at a qualified SEITRON service center. Table 12.4 shows the specific information for each sensor. 12.4 Gas sensor life table...

  • Page 112: Infrared Bench

    13.1 Infrared bench for heat treatment. The Chemist 900 Rack can be equipped with an NDIR bench specifically for CO2 measurement at concentrations below 25000 ppm and with the possibility of setting the interference value according to the H2 concentration.

  • Page 113: Troubleshooting

    14.0 TROUBLESHOOTING 14.1 Troubleshooting guide SYMPTOM PROBABLE CAUSES AND REMEDIES a. Press and hold the On/Off key down for longer than 2 seconds. The instrument does not work; when pressing the On/ b. Check the fuses and replace them, if it is needed. Off key, it does not switch on.
  • Page 114 Troubleshooting guide SYMPTOM PROBABLE CAUSES AND REMEDIES a. The suction flow is blocked. Check that the The pump does not work or the flow is lower than particulate filter is clean. 1,5l/min. b. Contact the service center. a. Check the display brightness level (see the The instrument is switched on, but the display seems configuration menu).

  • Page 115: Spare Parts And Servicing

    15.0 SPARE PARTS AND SERVICING 15.1 Spare parts CODE DESCRIPTION AACCV01 Schuko plug cable. AACCV04 European plug cable. AACCV06 US plug cable. WFILX0016 Anti-cleaning filter for Infrared bank protection. AAFA02 Filter cartridge, pack of 2 pieces WFUS5X20004R 4A delayed fuse WRAC0006901 Male 1/8"...

  • Page 116: Service Centers

    15.3 Service Centers Seitron S.p.A. a socio unico Via del Commercio, 9/11 36065 Mussolente (VI) Tel.: +39.0424.567842 Fax.: +39.0424.567849 E-mail: info@seitron.it http://www.seitron.it Seitron Service Milano Via Leonardo da Vinci, 1 20090 Segrate (MI) Tel. / Fax: +39.02.836.476.71 E-mail: service.milano@seitron.it...

  • Page 117: Maintenance

    16.0 MAINTENANCE...

  • Page 119: Routine Maintenance

    Do not exceed sensor overload thresholds.  When the analysis is complete, disconnect the flue gas sampling probe and have the CHEMIST 900 RACK  draw in clean air for 5-10 minutes or at least until the displayed parameters return to their initial state.

  • Page 120: Cleaning External Dust Filters

    16.3 Cleaning external dust filters In the event that the dust filters external to the instrument are found to be blackened it becomes necessary to replace them immediately. Unscrew the transparent cup. Unscrew the dust filter. Clean the inside of the cup using compressed air, soap and water, ultrasonic cleaning (do not use solvents or thinners since' the container is made of PVC plastic material).

  • Page 121: Replacement Of External Anti-Pollution Filter On Ir Line

    16.4 Replacement of external anti-pollution filter on IR line In the event that the anti-pollution filter located on the back of the instrument is found to be blackened it becomes necessary to replace it immediately. Pull the tubes out of the filter. Replace the dust filter with a new one.

  • Page 122: Fuse Replacement

    16.5 Fuse replacement In case it is necessary to replace the instrument fuses, proceed as follows. For the technical characteristics of the fuses, see chapter "4.1 Technical features." Turn off the instrument and disconnect the power cord from the instrument connector. Locate the fuse drawer and pull it out.

  • Page 123: On-Site Calibration

    16.6 On-site calibration: See Chapter 9.10 → → 16.7 AACSE79 Sensor Factory Calibration Using this procedure, it is possible to perform the factory calibration of the DUAL CO H2 gas sensor, code AACSE79, if present on the instrument. In any screen related to gas sensors, the presence of this sensor is marked by the fact that the CO-L measure- ment is present in position S2, while the H2-L measurement is present in position S9.
  • Page 124 → Turning on the instrument in "Calibration" mode 1. With the instrument off, press the Power On/Off button for a few seconds until it starts. Locate and simultaneously press the keys highlighted in the figure below during the logo screen when the instrument starts up.
  • Page 125 → Procedure 1. After entering the calibration menu as described above, select "Measurements" and press OK. 2. Select "Gas" and press OK. 3. Select the gas you wish to calibrate and press OK; calibration of both measurements (CO and H ) can be done by indifferently selecting only one of the two measurements as the procedure shown on the display is identical.
  • Page 126 → Example: Trascorso un minuto in aria pulita CALIBRATION GAS 1 for CO measurement. The second calibration point is "Gas 1" related to CO measurement; proceed as follows: 7. Having selected the "Gas 0" line, press the " " key on the keypad to display the "Gas 1" calibration screen. 8.
  • Page 127 → Automatically after 3 minutes...
  • Page 128 → Automatically after 3 minutes...

  • Page 129: Firmware Update

    Updating can be done by the user by following the simple instructions below. Instructions for upgrading the combustion analyzer with new firmware: 1. Go to the website www.seitron.it and download the firmware file found in the "combustion analyzers" section. This file is in a compressed version with a .zip extension.

  • Page 131: Annex

    ANNEX...

  • Page 133: Annex A - Fuel Coefficients And Formulas

    ANNEX A Fuel Coefficients and Formulas The following table, derived from UNI 10389-1, shows the coefficients of stored fuels which are used to calculate losses and efficiencies. Fuel coefficients for calculating combustion efficiency Fuel CO2t M air V gas dry (KJ/Kg) (KJ/Kg) (Kg/Kg)

  • Page 134: Annex B - Law Directions

    Legislative Decree 192/2005 and the UNI 10389-1 standard Preamble It is Seitron intention, by means of this compact guide, to provide boiler installers/service technicians with a quick and easy way to understand whether a boiler conforms to the requirements of Italian Law no. 10 dated January 1991, and subsequent modifications and supplements, and Legislative Decree 192/2005.

  • Page 135: Annex C - Optional Measures List

    ANNEX C Optional measures list which the instrument can perform, if properly set: MEASURE DEFINITION λ, n Air index (defined as λ, sometimes also indicated as n). Air excess. Expressed as a percentage according to the formula in the appendix B, is the ratio between the volume of air actually entering the combustion chamber and the one theoretically needed.
  • Page 136 MEASURE DEFINITION Sensible efficiency in relation to the Higher Heating Value: It is the burner efficiency calculated as the ratio between conventional heating power and the burner heating power. Among the combustion losses, only the sensible heat lost with ηs (HHV) flue gasses is taken into account, thus neglecting the radiation losses and incomplete combustion losses.

  • Page 137: Warranty Certificate

    Chemist 900 Rack analyzer is guaranteed for 24 months from the date of delivery note, electronic parts and measurement sensors. Seitron undertakes to repair or replace, free of charge, those parts that, in its opinion, are found to be faulty during the warranty period. The products which are found defective during the above mentioned periods of time have to be delivered to Seitron Laboratories carriage paid.
  • Page 139 NOTES...
  • Page 140 NOTES...

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