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

Gas analyzer
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  • Page 3: Table Of Contents

    TABLE OF CONTENTS IMPORTANT INFORMATION Information about this manual Safety warnings SAFETY Intended use of the product Improper use of the product GENERAL FEATURES Overview of the Flue Gas Analyzer DESCRIPTION OF THE PRODUCT Operating principle CO Dilution Types of fuels Peltier module condensation assembly (Cooler) Remote condensate sink External dust filters...
  • Page 4 TABLE OF CONTENTS 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=>Measurement units Configuration=>Analysis=>Measures list Configuration=>Analysis=>Autozero Configuration=>Analysis=>Other configurations Configuration=>Analysis=>Other conf.=>Sample processing Configuration=>Analysis=>Other conf.=>Sample selection Configuration=>Instrument ® Configuration=>Instrument=>Bluetooth Configuration=>Instrument=>Time/Date Configuration=>Instrument=>Brightness Configuration=>Instrument=>Buzzer Configuration=>Instrument=>Pump Configuration=>Instrument=>4..20mA Configuration=>Instrument=>CO sensor protection...
  • Page 5 - Declaration of Conformity WARRANTY CERTIFICATE 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 written approval by SEITRON S.p.A.

  • 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: General 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 10 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 11: Description Of The Product

    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 12: Infrared Bench Protection Dust Filters

    This feature is particularly useful when the analysis in taken in 'data logger' mode. 4.13 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 13: Available Software

    4.15 Available software Chemist Smart Analysis PC software, downloadable from the web site www.seitron.com, with the following features:  Displays the plate data of the instrument.  Sets the instrument parameters.

  • Page 14: Electrical Wirings

    CONNECTIONS 5.1 Warnings 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 15: Wiring The Signal Lines

    5.2 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 16: Rtu

    5.3 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 17: Analog Outputs Through 37 Poles Connector

    5.4 Analog outputs through 37 poles connector (4 outputs 4..20mA and 4 relay outputs) The CHEMIST 900 RACK features: Four outputs 4..20mA, each one associated to a measurement, customizable through the parameter “Configuration 4..20mA” in order to translate a measure in a current value available on output.

  • Page 18: Components Description

    COMPONENTS DESCRIPTION 6.1 Front cover LEGEND: Polycarbonate touch keypad and relevant main functions: FUNCTION FUNCTION Activates context keys shown display Select and/or Modify Access Configuration menu Access Measurements menu Confirm settings Quits the current screen Display LCD 128 x 64 pixel backlit color display with 21 characters available and 8 lines. Allows the user to view the measured parameters in the most comfortable format;...
  • Page 19 WARNING: 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. 26/08/19 Date and time. 09:04 Selected menu. Combustion analysis Text 01 Text 02...

  • Page 20: Back Cover

    6.2 Back cover 24 23 22 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 21 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 22: Technical Features

    TECHNICAL FEATURES 7.1 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 23 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 .. 20 minutes diaphragm pump: -5°C to +45°C ——————————————————————————————————————————————————...

  • Page 24: External Size

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

  • Page 25: Measurement And Accuracy Ranges

    7.3 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 26 MEASUREMENT SENSOR RANGE RESOLUTION ACCURACY ±1 °C 0 .. 100 °C Air temperature TcK sensor -20.0 .. 1250.0 °C 0.1 °C ±1% measured value 101 .. 1250 °C ±1 °C 0 .. 100 °C Flue gas temperature TcK sensor -20.0 .. 1250.0 °C 0.1 °C ±1% measured value 101 ..

  • Page 27: Startup

    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 center or distributor immediately and keep the original packing. A label applied on the instrument carries the model and the serial number.
  • Page 28 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 29: Connections

    CONNECTIONS Wiring diagram - Front cover 9.1.1 PC connection with the provided USB cable...

  • Page 30: Pc Connection With 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 31: Wiring Diagram - Back Panel

    Wiring diagram - Back Panel 9.2.1 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 32: Optional Junctions Assembly

    9.2.2 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 33: Wiring Diagram

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

  • Page 34: 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 35: 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 36: Features Of The Heated Smoke Suction Line (For The Meas. 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 37: 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 38: Power On - Off

    10.0 POWER ON - OFF 10.1 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 39: Configuration

    11.0 CONFIGURATION 11.1 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...

  • Page 40: Configuration=>Analysis

    11.2 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.
  • Page 41 → 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 11.2.5. 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 42: Configuration=>Analysis=>Fuel

    11.2.1 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 43: Configuration=>Analysis=>Condensation

    11.2.2 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 44: Reference

    11.2.3 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 45: Configuration=>Analysis=>No

    11.2.4 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 46: Configuration=>Analysis=>Measurement Units

    11.2.5 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 47: Configuration=>Analysis=>Measures List

    11.2.6 Configuration→Analysis→Measures list → 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 48 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 49: Configuration=>Analysis=>Autozero

    11.2.7 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 50: Configuration=>Analysis=>Other Configurations

    11.2.8 Configuration→Analysis→Other configs → 26/08/19 10:15 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. Furthermore, it is possible to set the temperature of the heated hose.

  • Page 51: Configuration=>Analysis=>Other Conf.=>Sample Processing

    11.2.9 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 52: Configuration=>Analysis=>Other Conf.=>Sample Selection

    11.2.10 Configuration→Analysis→Probe Switch → 26/08/19 10:15 Available options: (standard mode, the smoke is taken from one point only) (the smoke is taken from line 1 driven by relay number 3) (the smoke is taken from line 2 driven by relay number 4) auto (smoke is drawn in automatic mode, meaning that the instrument automatically switches between line L1 and L2 alternately, in cyclical mode, staying on each line for the time defined in T cycle).

  • Page 53: Configuration=>Instrument

    11.3 Configuration→Instrument → 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 ®...

  • Page 54: Configuration=>Instrument=>Bluetooth

    26/08/19 10:15 ® Bluetooth enabling / disabling Instrument name CHEMIST 900 RACK - 0001 MAC address detected FUNCTION Activate the context keys shown on the display. Also activates the context key shown on the display. Returns to the previous screen.

  • Page 55: Configuration=>Instrument=>Time/Date

    11.3.2 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 56: Configuration=>Instrument=>Brightness

    11.3.3 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 57: Configuration=>Instrument=>Buzzer

    11.3.4 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.

  • Page 58: Configuration=>Instrument=>Pump

    11.3.5 Configuration→Instrument→Pump → 26/08/19 10:15 Available settings : on (pump on) or off (pump off). Pump flow display, expressed in Liters per minute. 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.

  • Page 59: Configuration=>Instrument=>4

    11.3.6 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 60: Configuration=>Instrument=>Co Sensor Protection

    11.3.7 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 61: Configuration=>Instrument=>Other Configs

    11.3.8 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 Allows to turn on or off the NDIR bench. SEE CHAPTER 11.3.9.

  • Page 62: Configuration=>Instrument=>Ndir Bench

    11.3.9 Configuration→Instrument→NDIR Bench → 26/08/19 10:15 Available settings: on: NDIR bench is enabled - off: NDIR bench is disabled. WARNING In order to make effective the new configuration, please turn the instrument off and then on again. FUNCTION Activate the context keys shown on the display. In edit mode, it sets the desired value.

  • Page 63: Configuration=>Instrument=>Modbus

    11.3.10 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. FUNCTION Activate the context keys shown on the display. In edit mode, it sets the desired value.

  • Page 64: Configuration=>Operator

    11.4 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 65 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 66: Configuration=>Alarms

    11.5 Configuration→Alarms → 26/08/19 10:15 Number of the set alarm Monitored parameter: O - CO - NO - NO - P diff - Plow - P ext - T1 - T2 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 67 → 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 68: Configuration=>Information

    11.6 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 69: Configuration=>Information=>Sensors

    11.6.1 Configuration→Information→Sensors → 26/08/19 26/08/19 26/08/19 10:15 10:15 10:15 For further information see section 11.7. 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 70: Configuration=>Information=>Info Service

    11.6.2 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 71: Configuration=>Information=>Reminder

    11.6.3 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 72: Configuration=>Diagnostic

    11.7 Configuration→Diagnostic → 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 Displays information on the state and calibration of the electrochemical sensors: No problem detected absent...

  • Page 73: 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 74: Configuration=>Diagnostic=>Pump

    11.9 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 75: Configuration=>Diagnostic=>On Site Calibration

    11.10 Configuration→Diagnostic→On site cal. → 26/08/19 10:15 FUNCTION Activate the context keys shown on the display. Sets the password. Selects line; the selected line is displayed in red. In modification sets the value or the desired mode. Activates the context key located in the left side of the display. Returns to the previous screen.

  • Page 76: On Site Calibration Procedure

    11.10.1 On site Calibration procedure → In order to perform the recalibration of the gas sensors, the following tools are needed: - Calibration gas cylinder suitable for the sensor with known gas concentration, complete with a pressure regulator - Flow meter. - Hose with ' T ' shaped junction, in order to connect the cylinder to the instrument and the flow meter.
  • Page 77 → 3. Once in the ‘On site calibration’ menu, the list of the installed sensors for which the recalibration is available is shown. By selecting one sensor, in the recalibration screen all information related to the last performed calibration is shown. Calibrate: saves new calibration Status: not active:...
  • Page 78 OXYGEN SENSOR (O ) CALIBRATION DETAIL. → The calibration will be possible only when the status is set to '----' (cells which never had an on-site calibration)  or it is necessary to set the state to 'not active' (see example). active not active active...
  • Page 79 → When the stabilization time is over, select the 'Calibration' row and store the new calibration.  active 2.97 2.97 2.97 Once the new calibration has been stored, the possible temporary messages which can be seen on the row ‘status' are the following: saving: the instrument is saving the performed calibration error: the sensor has NOT been recalibrated for any of the following reasons:...
  • Page 80 TOXIC GASES SENSOR CALIBRATION DETAIL (EXAMPLE REFERRED TO CO). → The calibration will be possible only when the status is set to '----' (cells which never had an on-site calibration)  or it is necessary to set the state to 'inactive' (see example). Active Non active Active...
  • Page 81 → The instrument measures the concentration of gas applied; wait at least 3 minutes to allow the reading to  stabilize. The reading is shown in line 'Gas measured'. Zeroes the timer - helps to keep under 70.13 79.76 79.76 control the time elapsing during the stabilization phase.
  • Page 82 TOXIC GASES SENSOR CALIBRATION DETAIL 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. The on site calibration procedure for these sensors is the same described in the previous pages regarding the toxic gases sensors and it can be performed for all the gases which interferes with the sensor itself.

  • Page 83: Configuration=>Diagnostic=>Hardware

    11.11 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 84: Configuration=>Diagnostic=>Ndir Bench

    11.12 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 85: Configuration=>Diagnostic=>Sample Processing

    11.13 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 86: Configuration=>Language

    11.14 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 87: Configuration=>Restore

    11.15 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 88: Measurements

    12.0 MEASUREMENTS 12.1 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 89: Measurements=>Velocity

    12.1.2 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 90: Emission Analysis

    PC through a USB cable and/or Bluetooth, having previously installed the dedicated PC software “Chemist Smart Analysis” provided with the instrument or downloadable at the web site www.seitron.com. The analysis mode, entirely settable by the user, allows to monitor the emissions of polluting gasses.
  • Page 91 Detail of settable data Following, the main screen of the PC software, Chemist Smart Analysis, where it is possible to set the analysis mode. ANALYSIS SETTINGS ANALYSIS ACQUISITION MODE In this menu it is possible to define the analysis Whatever the set analysis mode is, it is necessary to properly set this menu: mode used by the instrument to monitor the polluting emissions.
  • Page 92 Analysis acquisition mode set to “Data logger PC” This mode is fully settable by the user. The starting point and the end of the analysis is defined by the user (immediate or programmed by day and time). When the emission analysis starts, the instrument automatically proceeds to acquire the set samples. During the acquisition it is possible to follow along the process.
  • Page 93 Analysis acquisition mode set to “Periodic” This mode, fully settable by the user, allows to monitor the polluting emissions at defined time intervals. The start of the emission analysis is defined by the user (immediate or programmed by day and time). When the emission analysis starts, the instrument automatically proceeds to acquire the set samples.
  • Page 94 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 95: Performing The Emissions Analysis

    13.1.2 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 96: Sensors

    Exhausted cells can be easily replaced by the user without depriving himself of the instrument and without complicated calibration procedures with certified mixtures as they are pre-calibrated before being supplied. Seitron certifies the accuracy of the measurements only for instruments with a calibration certificate issued by its laboratory or other approved laboratory.

  • Page 97: Sensors Arrangement In The Sensors Compartment

    14.2 Positioning of sensors inside the sensor compartment POSITION POSITION POSITION CABLE CABLE CABLE SENSOR S3 SENSOR S2 SENSOR S1 POSITION POSITION POSITION...

  • Page 98: Sensor Types And Relevant Positioning

    14.3 Sensor types and relevant positioning POSITION CODE Flex-Sensor O    Cod. AACSE43 Flex-Sensor CO+H  Cod. AACSE12 Flex-Sensor NO    Cod. AACSE10 Flex-Sensor NO    Cod. AACSE14 Flex-Sensor SO    Cod. AACSE13 Flex-Sensor SO2 (J57-2017) ...

  • Page 99: Gas Sensors Life

    The sensors must be recalibrated on a regular basis to assure measuring accuracy: recalibration can only be performed by a qualified SEITRON service center. Chart 14.5 illustrates the characteristics inherent to each sensor.

  • Page 100: Expandability To 3 Sensors

    - The expandable instruments are arranged in a way to accept up to a maximum of 3 sensors. - Identify, with the help of paragraph 14.3 ''Sensor types and relevant positioning'', the sensor(s) which must be added to the existing configuration (Seitron delivers all FLEX-series sensors already pre-calibrated and ready to use).

  • Page 101: Cxhy Sensor For Measurement Of The Unburnt Hydrocarbons (Pellistor)

    14.7 CxHy sensor for measurement of unburnt hydrocarbons (pellistor) Unburnt hydrocarbons are chemicals produced by an incomplete combustion of molecules (hydrocarbons) made of Carbon and Hydrogen. These are usually named as HC or (better) CxHy: when this is filled with the actual values for the number of C and H atoms, the actual type of fuel is exactly defined.

  • Page 102: Co 2 Sensor For Carbon Dioxide Measurement (Ndir Single Sensor)

    When the CO sensor is mounted on the instrument, it is mandatory to configure the CHEMIST 900 RACK the autozero by setting it at 60 seconds, in order to allow for a proper pre-heating of the sensor itself. Configuration→Analysis→Autozero (See chapter 11.2.7)

  • Page 103: Nh 3 Sensor For Ammonia Gas Measurement In Combustion Processes

    14.9 NH sensor for ammonia gas measurement in combustion processes USE ONLY WITH THE SMOKE PROBE FOR INDUSTRIAL ENGINES COMPLETE WITH SYNTHERIZED STEEL FILTER ON THE TIP AND FILTERED CARTRIDGE IN HDPE IN THE WATER TRAP. This sensor measures the presence of ammonia (NH ) in combustion gases and, since this gas is easily soluble in H O, some precautions are necessary;...

  • Page 104: Ndir Infrared Bench

    An infrared bench for the detection of gases based on (NDIR) infrared spectroscopy can be installed on CHEMIST 900 RACK. By this system it is possible to simultaneously detect one or more of the following gases: CO, CO2 and/or CH An additional dust filter is fitted along the pneumatic circuit before the IR bench.

  • Page 105: Maintenance

    15.2 Scheduled Maintenance Send the instrument to the SERVICE CENTER to be thoroughly cleaned and checked at least once a year. SEITRON highly qualified personnel is always at your disposal for any commercial or technical information and implementation or maintenance issues.

  • Page 106: Internal Parts Access

    15.3 Access to the internal parts In order to access the internal parts of the emission analyzer it is necessary to unscrew the top cover of the instrument, as shown on the figures below:...

  • Page 107: Cleaning External Dust Filters

    15.4 Cleaning the external dust filters If the external particulate & dust filters have large accumulations of particulates, ash, & dust and/or have any cracks in them, then replace these filters as shown below. Unscrew the transparent cover Unscrew the dust filter Clean the cover inside by using compressed air, soap and water or ultrasonic cleaner (do not use solvents or thinners as the case/container is made of PVC plastic material).

  • Page 108: External Dust Filter Replacement On Ir Line

    15.5 External dust filter cleansing on the IR line If the dust filter positioned on the back of the instrument is blackened, immediate replacement is necessary. Remove the hoses from the filter Replace the dust filter with a new one. See chapter “Spare parts” To reassemble the filter logically reversing this procedure.

  • Page 109: Fuse Replacement

    15.7 Fuse replacement If it is necessary to replace the fuses of the instrument, proceed as follows. About the fuses technical features, see chapter “7.0 Technical features”. Turn off the instrument and unplug the power cable from the instrument connector. Locate the fuse holder ad pull it out.

  • Page 110: Gas Sensors Replacement

    15.8 Replacing the gas sensors The gas sensors of the instrument shall be periodically replaced (see table 14.5) with new or recalibrated sen- sors. The user can easily perform this replacement operation according to the following instructions: Gain access to the internal parts of the instrument, as explained in section 15.3 "...
  • Page 111 Unplug the electrical connection of the sensor to be replaced; in the following there is an example of a sensor to be replaced with the electrical connection unplugged.
  • Page 112 The sensor is bayonet-connected to its socket; rotate it counter-clockwise to remove it. Here is an example of a rotated sensor. While rotating the sensor, take care not to exert any pressure on the printed circuit board mounted on the top of the sensor: exert pressure only onto the plastic body.
  • Page 113 After rotating the sensor, pull it upward; here is an example of the sensor compartment with a sensor removed. Fit the new sensor again taking care the electric connection is turned to the inside of the instrument, not the outside (See point 4). Rotate the sensor clockwise until hearing a click (See point 3).
  • Page 114 Turn on the instrument to check the new sensor works correctly through the menu "Sensor Troubleshooting". It is normal if a newly installed sensor gives a 'current error': it is necessary to wait some time, so that the sensor polarization can settle. The table here below shows the minimum settling time for each sensor. CODE MEASURED GAS SETTLING TIME...

  • Page 115: Firmware Update

    This update can be performed by the user by following the simple instructions below. Instructions to update the combustion analyzer with a new firmware: 1. Log in to the website www.seitron.it and download the firmware file available in the "combustion analyzers" section. This file is in a compressed version .zip.

  • Page 116: Troubleshooting

    16.0 TROUBLESHOOTING 16.1 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 117 Troubleshooting guide SYMPTOM PROBABLE CAUSES AND REMEDIES a. The suction flow is blocked. Check that the The suction pump does not work or the flow is lower particulate filter is clean. than 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 118: Spare Parts And Service

    17.0 SPARE PARTS AND SERVICING 17.1 Spare parts CODE DESCRIPTION AACADX005 Dummy sensor AACSE43 Flex-Sensor O long life, pre-calibrated and interchangeable AACSE12 Flex-Sensor CO+H , pre-calibrated and interchangeable AACSE10 Flex-Sensor NO/NO , pre-calibrated and interchangeable AACSE14 Flex-Sensor NO , pre-calibrated and interchangeable AACSE13 Flex-Sensor SO , pre-calibrated and interchangeable...

  • Page 119: Accessories

    17.2 Accessories CODE DESCRIPTION AASW17 Configuration software. AAUA01 USB-A / USB-B adapter cable. AAFA04 Filtering cartridge HDPE 100um 12x57mm, 2 pieces pack AASF31 180 mm flue gas sampling probe with 3 mt cable. Working temperature range: 400°C. AASF32 300 mm flue gas sampling probe with 3 mt cable. Working temperature range: 600°C. AASF35 750 mm flue gas sampling probe with 3 mt cable.

  • Page 120: Service Centers

    17.3 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 121: Annex A

    ANNEX A Coefficients of the fuels and Formulas The following chart, derived from standard UNI 10389-1, lists the coefficients of the memorised fuels, used for calculating losses and efficiencies. Coefficients for calculating combustion efficiency Fuel CO2t M air V dry gas (KJ/Kg) (KJ/Kg) (Kg/Kg)

  • Page 122: Annex B

    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 123: Annex C

    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 124 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 125: Annex D

    ANNEX D...

  • Page 127: 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 129 NOTE...
  • Page 130 NOTE...

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