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Thermo Scientific 43i Instruction Manual
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Thermo Scientific 43i Instruction Manual

Pulsed fluorescence so2 analyzer
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Model 43i Trace Level-
Enhanced
Instruction Manual
Pulsed Fluorescence SO
Analyzer
2
Part Number 102780-00
14Jan2008

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Summary of Contents for Thermo Scientific 43i

  • Page 1 Model 43i Trace Level- Enhanced Instruction Manual Pulsed Fluorescence SO Analyzer Part Number 102780-00 14Jan2008...
  • Page 2 © 2007 Thermo Fisher Scientific Inc. All rights reserved. Specifications, terms and pricing are subject to change. Not all products are available in all countries. Please consult your local sales representative for details. Thermo Fisher Scientific Air Quality Instruments 27 Forge Parkway Franklin, MA 02038 1-508-520-0430 www.thermo.com/aqi...

  • Page 3: Weee Compliance

    WEEE Compliance This product is required to comply with the European Union’s Waste Electrical & Electronic Equipment (WEEE) Directive 2002/96/EC. It is marked with the following symbol: Thermo Fisher Scientific has contracted with one or more recycling/disposal companies in each EU Member State, and this product should be disposed of or recycled through them.

  • Page 5: About This Manual

    About This Manual This manual provides information about installing, operating, maintaining, and servicing the Model 43i Trace Level-Enhanced. It also contains important alerts to ensure safe operation and prevent equipment damage. The manual is organized into the following chapters and appendixes to provide direct access to specific operation and service information.
  • Page 6 The service procedures in this manual are restricted to ▲ qualified service personnel only. The Model 43i Trace Level-Enhanced is supplied with a three-wire grounding cord. Under no circumstances ▲ should this grounding system be defeated.
  • Page 7 Marking of electrical and electronic equipment which applies to electrical and electronic equipment falling under the Directive 2002/96/EC (WEEE) and the ▲ equipment that has been put on the market after 13 August 2005. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 8 Service is available from exclusive distributors worldwide. Contact one of Where to Get Help the phone numbers below for product support and technical information or visit us on the web at www.thermo.com/aqi. 1-866-282-0430 Toll Free 1-508-520-0430 International viii Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 9: Table Of Contents

    Calibration Factors Menu ..............3-15 Background ................3-16 Span Coefficient ..............3-17 Reset User Calibration Default............3-18 Calibration Menu ................3-18 Calibrate SO Background ............. 3-18 Calibrate SO Coefficient ............... 3-19 Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 10 Use DHCP ................. 3-35 IP Address................... 3-36 Netmask..................3-36 Gateway ..................3-36 Host Name ................. 3-37 I/O Configuration................3-37 Output Relay Settings ..............3-38 Logic State .................. 3-38 Instrument State ................. 3-38 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 11 Instrument Configuration .............. 3-56 Contact Information ..............3-57 Alarms Menu ..................3-57 Internal Temperature ..............3-58 Min and Max Internal Temperature Limits......... 3-58 Chamber Temperature..............3-59 Min and Max Chamber Temperature Limits ......3-59 Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 12 Permeation Oven Setpoint ............3-76 Factory Calibrate Gas Thermistor ..........3-77 Low and High Points ..............3-77 Set defaults.................. 3-77 Factory Calibrate Oven Thermistor..........3-78 Low and High Points ..............3-78 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 13 Leak Test .................... 5-6 Pump Rebuilding ................5-6 Chapter 6 Troubleshooting ....................6-1 Safety Precautions ................6-1 Troubleshooting Guides..............6-1 Board-Level Connection Diagrams ........... 6-10 Connector Pin Descriptions .............. 6-12 Service Locations................6-24 Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual xiii...
  • Page 14 I/O Expansion Board (Optional) Replacement ......... 7-37 Digital Output Board Replacement........... 7-39 Motherboard Replacement..............7-40 Measurement Interface Board Replacement ........7-41 Front Panel Board Replacement............7-42 LCD Module Replacement ............... 7-43 Service Locations................7-44 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 15 Flash Trigger Board................8-9 Flash Intensity Board ............... 8-9 I/O Expansion Board (Optional) ............. 8-9 I/O Components................. 8-9 Analog Voltage Outputs..............8-9 Analog Current Outputs (Optional) ..........8-10 Analog Voltage Inputs (Optional) ..........8-10 Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 16 Accessing Streaming Data ..............B-2 Entering Units in PPB ..............B-2 Measurements ..................B-7 Alarms....................B-11 Diagnostics ..................B-14 Datalogging..................B-16 Calibration..................B-23 Keys/Display ..................B-26 Measurement Configuration .............B-27 Hardware Configuration ..............B-31 Communications Configuration ............B-34 I/O Configuration................B-38 Record Layout Definition ..............B-43 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 17 Measurements reported in response to DA command ..... D-6 Single Range Mode ..............D-6 Dual/Auto Range Mode............... D-6 Operating and Error Status ............. D-7 Appendix E Standards for Trace Level Analyzers............E-1 Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual xvii...
  • Page 18 Contents Where to Get Help xviii Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 19 Figure 6–2. Board-Level Connection Diagram – Measurement System ..6-11 Figure 7–1. Properly Grounded Antistatic Wrist Strap ........7-2 Figure 7–2. Model 43i Trace Level-Enhanced Component Layout ....7-6 Figure 7–4. Removing the Measurement Bench and Lowering the Partition Panel ........................7-7 Figure 7–5.
  • Page 20 Figure 9–4. Cal Gas Therm Resistor Screen ............9-7 Figure 9–5. Rack Mount Option Assembly ............9-12 Figure 9–6. Bench Mounting................9-13 Figure 9–7. EIA Rack Mounting ................9-14 Figure 9–8. Retrofit Rack Mounting..............9-15 Figure B–1. Flags ....................B-10 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 21 Tables Table 1–1. Model 43i Trace Level-Enhanced Specifications......1-3 Table 1–2. Model 43i Trace Level-Enhanced Optional Permeation Oven Specifications ....................... 1-5 Table 2–1. I/O Terminal Board Pin Descriptions ..........2-6 Table 2–2. D/O Terminal Board Pin Descriptions..........2-7 Table 2–3. 25-Pin Terminal Board Pin Descriptions........... 2-8 Table 3–1.
  • Page 22 Table C–1. Read Registers for 43i Trace Level-Enhanced .........C-8 Table C–2. Write Coils for 43i Trace Level-Enhanced........C-9 Table C–3. Read Coils for 43i Trace Level-Enhanced........C-10 Table D–1. Operating Status for Model 43i Trace Level-Enhanced ....D-7 Table D–2. Error Status for Model 43i Trace Level-Enhanced......D-7 xxii...

  • Page 23: Chapter 1 Introduction

    The Model 43i Trace Level-Enhanced Pulsed Fluorescence Analyzer combines proven detection technology, easy to use menu-driven software, and advanced diagnostics to offer unsurpassed flexibility and reliability. The Model 43i Trace Level-Enhanced has the following features: 320 x 240 graphics display ●...

  • Page 24: Principle Of Operation

    For more information on servicing, see the “Servicing” chapter. Principle of The Model 43i Trace Level-Enhanced operates on the principle that SO molecules absorb ultraviolet (UV) light and become excited at one Operation wavelength, then decay to a lower energy state emitting UV light at a different wavelength.

  • Page 25: Specifications

    Introduction Specifications Figure 1–1. Model 43i Trace Level-Enhanced Flow Schematic Specifications Table 1–1. Model 43i Trace Level-Enhanced Specifications Preset ranges 0-10, 20, 50, 100, 200, 500, and 1000 ppb 0-20, 50, 100, 200, 500, 1000, and 2000 μg/m Custom ranges 0-10 to 1000 ppb 0-20 to 2000 μg/m...
  • Page 26 115200, data – bits, parity, and stop bits, protocols: C-Link, MODBUS, Geysitech (Bayern- Hessen), and streaming data (all user selectable) In non-condensing environments. Performance specifications based on operation within 20–30 °C range. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 27: Table 1-2. Model 43I Trace Level-Enhanced Optional Permeation Oven Specifications

    30 ° Temperature range – Physical Contained inside the Model 43i Trace Level-Enhanced dimensions Power 120 VAC @ 50/60 Hz, 50 watts (in addition to the standard Model 43i requirements Trace Level-Enhanced) Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 28 Introduction Specifications Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 29: Installation

    Chapter 2 Installation Installation of the Model 43i Trace Level-Enhanced includes lifting the instrument, unpacking and inspection, connecting sample, zero, span, and exhaust lines, and attaching the analog outputs to a recording device. The installation should always be followed by instrument calibration as described in the “Calibration”...

  • Page 30: Figure 2-1. Remove The Packing Material

    Units with Optional I/O Board Figure 2–1. Remove the Packing Material 4. Remove the three shipping screws from the pump (Figure 2–2). Shipping Screws (3) Figure 2–2. Removing the Shipping Screws Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 31: Setup Procedure

    3. Connect a suitable recording device to the rear panel connector. For detailed information about connecting to the instrument, refer to: “Connecting External Devices” on page 2-5 Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 32: Figure 2-3. Rear Panel

    “Analog Output Testing” on page 7-21. 4. Plug the instrument into an outlet of the appropriate voltage and frequency. WARNING The Model 43i Trace Level-Enhanced is supplied with a three- wire grounding cord. Under no circumstances should this grounding system be defeated.

  • Page 33: Connecting External Devices

    Note All of the I/O available in the instrument are not brought out on this terminal board, if more I/O is desired, an alternative means of connection is required. ▲ Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 34: Figure 2-5. I/O Terminal Board Views

    Power_Fail_NC Analog ground Power_Fail_COM Analog2 Power_Fail_NO Analog ground TTL_Input1 Analog3 TTL_Input2 Analog ground TTL_Input3 Analog4 TTL_Input4 Analog ground Digital ground Analog5 TTL_Input5 Analog ground TTL_Input6 Analog6 TTL_Input7 Analog ground Digital ground Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 35: Figure 2-6. D/O Terminal Board Views

    Table 2–2. D/O Terminal Board Pin Descriptions Signal Description Signal Description Relay1_ContactA Relay7_ContactA Relay1_ContactB Relay7_ContactB Relay2_ContactA Relay8_ContactA Relay2_ContactB Relay8_ContactB Relay3_ContactA Relay9_ContactA Relay3_ContactB Relay9_ContactB Relay4_ContactA Relay10_ContactA Relay4_ContactB Relay10_ContactB Relay5_ContactA Not Used Relay5_ContactB +24V Relay6_ContactA Not Used Relay6_ContactB +24V Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 36: Figure 2-7. 25-Pin Terminal Board Views

    Signal Description IOut1 Analog_In1 Isolated ground Analog_In2 IOut2 Analog_In3 Isolated ground GNDD IOut3 Analog_In4 Isolated ground Analog_In5 IOut4 Analog_In6 Isolated ground GNDD IOut5 Analog_In7 Isolated ground Analog_In8 IOut6 GNDD Isolated ground GNDD Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 37: Startup

    3. Set instrument parameters such as operating ranges and averaging times to appropriate settings. For more information about instrument parameters, see the “Operation” chapter. 4. Before beginning actual monitoring, perform a multipoint calibration as described in the “Calibration” chapter. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 38 Installation Startup 2-10 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 39: Chapter 3 Operation

    ● and functions. “Alarms Menu” on page 3-57 describes a list of items that are ● monitored by the analyzer. “Service Menu” on page 3-65 describes service related menu items. ● Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 40: Display

    CAUTION If the LCD panel breaks, do not to let the liquid crystal contact your skin or clothes. If the liquid crystal contacts your skin or clothes, wash it off immediately using soap and water. ▲ Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 41: Pushbuttons

    ) move the cursor up, down, left, and right or = Left, Right change values and states in specific screens. = Enter is used to select a menu item, accept/set/save a change, and/or toggle on/off functions. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 42: Soft Keys

    RANGE DIAGS ALARM Software The Model 43i Trace Level-Enhanced utilizes the menu-driven software as illustrated by the flowchart in Figure 3–3. The Power-Up screen, shown at Overview the top of the flowchart, is displayed each time the instrument is turned on.

  • Page 43: Figure 3-3. Flowchart Of Menu-Driven Software

    Operation Software Overview Figure 3–3. Flowchart of Menu-Driven Software Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 44: Power-Up Screen

    Operation Software Overview Power-Up Screen The Power-Up screen is displayed on power up of the Model 43i Trace Level-Enhanced. The Self-Test is displayed while the internal components are warming up and diagnostic checks are performed. Run Screen The Run screen displays the SO concentration.

  • Page 45: Range Menu

    In the Main Menu, choose Range. RANGE: RANGE: >GAS UNITS >GAS UNITS RANGE HI SO2 RANGE SET CUSTOM RANGES LO SO2 RANGE SET CUSTOM RANGES RANGE DIAGS ALARM RANGE DIAGS ALARM Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 46: Single Range Mode

    2, 4, 6, 8, 10, 12 Signal Ground Note All channels are user definable. If any customization has been made to the analog output configuration, the default selections my not apply. ▲ Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 47: Dual Range Mode

    Figure 3–5. Pinout of Rear Panel Connector in Dual Range Mode Table 3–3. Default Analog Outputs in Dual Range Mode Channel Connector Pin I/O Terminal Pin Description High Range Low Range None None Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 48: Autorange Mode

    For example, the low SO range is set to 0–10 ppb and the high SO range is set to 0–1000 ppb. 3-10 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 49: Figure 3-6. Analog Output In Autorange Mode

    Autorange mode may be selected from “Range Mode Select” in the “Service Menu” later in this chapter. Figure 3–7. Pin-Out of Rear Panel Connector in Auto-Range Mode Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-11...

  • Page 50: Gas Units

    20 °C. A display warning will appear that ranges will be defaulted and calibration parameters reset. ▲ 3-12 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 51: So Range

    In the Main Menu, choose Range > SO Range. SO2 RANGE: CURRENTLY: 1000 SET TO: 500 ? CHANGE VALUE SAVE VALUE RANGE DIAGS ALARM Table 3–5. Standard Ranges μg/m 1000 1000 2000 Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-13...

  • Page 52: Set Custom Ranges

    In the Main Menu, choose Range > Set Custom Ranges > Custom range 1, 2, or 3. CUSTOM RANGE 1: CURRENTLY: 55.5 SET TO: 000055.6 ? MOVE CURSOR CHANGE VALUE SAVE RANGE DIAGS ALARM 3-14 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 53: Averaging Time

    Calibration Factors menu. To manually calibrate the instrument, see “SO Background” and “SO Span Coefficient” that follows for more information. In the Main Menu, choose Calibration Factors. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-15...

  • Page 54: So 2 Background

    Run screen. Press to actually set the SO reading to 0 ppb and store the new background correction of 1.49 ppb. In the Main Menu, choose Calibration Factors > SO Bkg. 3-16 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 55: So Span Coefficient

    0 or lower). ▲ In the Main Menu, choose Calibration Factors > Hi SO Coef. HIGH SO2 COEFFICIENT: HIGH SO2: 35.7 SET COEF TO: 1.000 ? INC/DEC SAVE VALUE RANGE DIAGS ALARM Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-17...

  • Page 56: Reset User Calibration Default

    To be most accurate, use the 300-second averaging time. For more information about calibration, see Chapter 4, “Calibration”. In the Main Menu, choose Calibration > Cal SO Background. 3-18 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 57: Calibrate So Coefficient

    Note Zero and Span Calibration Reset are toggle items that change between yes or no when selected, and present only if auto calibration is installed. ▲ In the Main Menu, choose Calibration > Zero/Span Check. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-19...

  • Page 58: Next Time

    0. In the Main Menu, choose Calibration > Zero/Span Check > Period Hours. ZERO/SPAN PERIOD: CURRENTLY: 024 HRS SET TO: HRS ? MOVE CURSOR CHANGE VALUE SAVE RANGE DIAGS ALARM 3-20 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 59: Zero/Span/Purge Duration Minutes

    If this value is set to 3, there will be two zero checks between each zero/span check. This value may be set from 1 to 10, with 1 as default. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-21...

  • Page 60: Instrument Controls Menu

    LED, see “Optical Span Test” later in this chapter. In the Main Menu, choose Instrument Controls > Flash Lamp. FLASH LAMP: CURRENTLY: SET TO: OFF ? TOGGLE VALUE RANGE DIAGS ALARM 3-22 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 61: Datalogging Settings

    In the Main Menu, choose Instrument Controls > Datalogging Settings > Select SREC or LREC > View Logged Data. SELECT START POINT BY: SET TO: # OF RECS CHANGE ACCEPT RANGE DIAGS ALARM Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-23...

  • Page 62: Number Of Records

    If set to one minute logging, this would be at “20 JUN 2005 10:01”. DATE AND TIME: 20 JUN 2005 10:00 DAYS SET CURSOR TO MONTHS ACCEPT AS SHOWN RANGE DIAGS ALARM 3-24 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 63: Erase Log

    Note that committing any changes to this list will erase all currently logged data, as the format of the stored data is changed. In the Main Menu, choose Instrument Controls > Datalogging Settings > Select Content. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-25...

  • Page 64: Concentrations

    “Commit Content” that follows. Range Status is visible only in auto range mode. In the Main Menu, choose Instrument Controls > Datalogging Settings > Select Content > Select Field > Concentrations. 3-26 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 65: Other Measurements

    To change the selected record format and erase record log file data, see “Commit Content” that follows. In the Main Menu, choose Instrument Controls > Datalogging Settings > Select Content > Select Field > Analog Inputs. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-27...

  • Page 66: Commit Content

    For more information about selecting the analog output signal group choices, see “Select Content” in this chapter. In the Main Menu, choose Instrument Controls > Datalogging Settings > Reset to Default Content. 3-28 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 67: Configure Datalogging

    Percentages between 0 and 100% Percent are available in increments of 10. Changing this value results in log erasure for both short records and long records. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-29...

  • Page 68: Communication Settings

    Settings In the Main Menu, choose Instrument Controls > Communication Settings. COMMUNICATION SETTINGS: >BAUD RATE INSTRUMENT ID COMMUNICATION PROTOCOL STREAMING DATA CONFIG RS-232/RS-485 SELECTION TCP/IP SETTINGS RANGE DIAGS ALARM 3-30 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 69: Baud Rate

    ID number if two or more of the same instruments are connected to one computer. Valid Instrument ID numbers are from 0 to 127. The Model 43i Trace Level-Enhanced has a default Instrument ID of 43. For more information about the Instrument ID, see Appendix B “C- Link Protocol Commands”...

  • Page 70: Communication Protocol

    The following interval times are available: 1, 2, 5, 10, 20, 30, 60, 90, 120, 180, 240, and 300 seconds. In the Main Menu, choose Instrument Controls > Communication Settings > Streaming Data Config > Streaming Data Interval. 3-32 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 71: Streaming Data Interval

    The selected item is shown by “<--” after it. In dual or auto range mode, “HI” or “LO” is displayed to indicate high or low range concentrations. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-33...

  • Page 72: Other Measurements

    The RS-232/RS-485 Selection screen allows the user to choose between the RS-232 or RS-485 specification for serial communication. Equipment Damage Disconnect the serial cable before changing RS-232 and RS-485 selection to prevent damage to the connected equipment. ▲ 3-34 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 73: Rs-232/Rs-485 Selection

    In the Main Menu, choose Instrument Controls > Communication Settings > TCP/IP Settings > Use DCHP. DHCP: CURRENTLY: SET TO: ON ? TOGGLE VALUE CYCLE POWER TO CHANGE DHCP RANGE DIAGS ALARM Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-35...

  • Page 74: Ip Address

    DHCP, see “Use DHCP” in this chapter. Any traffic to addresses that are not on the local subnet will be routed through this address. In the Main Menu, choose Instrument Controls > Communication Settings > TCP/IP Settings > Gateway. 3-36 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 75: Gateway

    Board is installed. ▲ In the Main Menu, choose Instrument Controls > I/O Configuration. I/O CONFIGURATION: >OUTPUT RELAY SETTINGS DIGITAL INPUT SETTINGS ANALOG OUTPUT CONFIG ANALOG INPUT CONFIG RANGE DIAGS ALARM Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-37...

  • Page 76: Logic State

    A submenu lists signal types of either alarm and non-alarm to choose from. In the Main Menu, choose Instrument Controls > I/O Configuration > Output Relay Settings > Select Relay > Instrument State. 3-38 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 77 The selected item is shown by “<--” after it. In the Main Menu, choose Instrument Controls > I/O Configuration > Output Relay Settings > Relay 1-10 > Instrument State > Non-Alarm. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-39...
  • Page 78 >1 BACKGROUND CAL TO LO SPAN AOUTS TO ZERO AOUTS TO FS CAL TO HI SPAN NONE NONE RANGE DIAGS ALARM NONE NONE NONE NONE NONE NONE NONE NONE NONE 3-40 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 79: Instrument Action

    1-6, and current channels 1-6 (if the I/O expansion board option is installed). Configuration choices include selecting range, setting minimum/maximum values, and choosing signal to output. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-41...

  • Page 80: Select Output Range

    Range Status is visible only in auto range mode. The minimum and maximum output value screens function the same way. The example that follows shows the set minimum value screen. 3-42 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 81: Table 3-6. Analog Output Zero To Full Scale Values

    Range (SO ) is visible only in auto range mode. The Concentrations screen is shown below. See Table 3-8 that follows for a list of items for each signal group choice. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-43...

  • Page 82: Choose Signal To Output

    Analog Input 6 I/O Expansion Board installed PMT Volts Analog Input 7 I/O Expansion Board installed Flash Volts Analog Input 8 I/O Expansion Board installed Flash Ref I/O Expansion Board installed 3-44 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 83: Analog Input Configuration

    The units may be from 1 to 3 characters in length, and defaults to V (volts). In the Main Menu, choose Instrument Controls > I/O Configuration > Analog Input Config > Select Channel > Units. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-45...

  • Page 84: Decimal Places

    The Table Point submenu allows the user to set up an individual table point. In the Main Menu, choose Instrument Controls > I/O Configuration > Analog Input Config > Table Point 1-10. 3-46 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 85: Volts

    DIAGS ALARM Temperature Temperature compensation provides compensation for any changes to the instrument's output signal due to internal instrument temperature Compensation variations. The effects of internal instrument temperature changes on the Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-47...

  • Page 86: Temperature Compensation

    The Screen Contrast screen is used to change the contrast of the display. Screen Contrast Values between 0 and 100% in increments of 10 are available. Changing the screen contrast may be necessary if the instrument is operated at extreme temperatures. 3-48 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 87: Service Mode

    Model 43i Trace Level-Enhanced. For more information about the service mode, see “Service Menu” later in this chapter. Note The service mode should be turned off when finished, as it prevents remote operation.

  • Page 88: Diagnostics Menu

    The I/O board item is only displayed if the I/O expansion board is installed. 3-50 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 89: Motherboard Voltages

    PMT SUPPLY 612.5 V FLASH SUPPLY 1000.0 V 3.3 SUPPLY 3.3 V 5.0 SUPPLY 5.0 V 15.0 SUPPLY 15.0 V -15.0 SUPPLY -15.0 V 24.0 SUPPLY 24.0 V RANGE DIAGS ALARM Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-51...

  • Page 90: I/O Board Voltages

    The Pressure screen (read only) displays the current optical bench pressure. The pressure is measured by a pressure transducer in-line with the optical bench. In the Main Menu, choose Diagnostics > Pressure. PRESSURE: 753.0 mmHg RANGE DIAGS ALARM 3-52 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 91: Sample Flow

    In the Main Menu, choose Diagnostics > Optical Span Test. OPTICAL SPAN TEST: SO2: CURRENTLY: SET TO: OFF ? TOGGLE VALUE RANGE DIAGS ALARM Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-53...

  • Page 92: Analog Input Readings

    ANALOG IN 8 0.00 V The Digital Inputs screen (read only) displays the state of the 16 digital Digital Inputs inputs. In the Main Menu, choose Diagnostics > Digital Inputs. 3-54 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 93: Relay States

    (DAC) calibration items. Channel choices include all analog outputs, 6 voltage channels, and 6 current channels (if the I/O expansion board option is installed). In the Main Menu, choose Diagnostics > Test Analog Outputs. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-55...

  • Page 94: Set Analog Outputs

    Note If the analyzer is in service mode, pressing on the item will toggle it yes or no (with the exception of dilution ratio and auto calibration, which may only be enabled at the factory). ▲ 3-56 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 95: Contact Information

    I/O expansion board status (if installed) indicates that the power supplies are working and connections are successful. There are no setting screens for these alarms. In the Main Menu, choose Alarms. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-57...

  • Page 96: Internal Temperature

    The minimum and Temperature Limits maximum internal temperature screens function the same way. In the Main Menu, choose Alarms > Internal Temp > Min or Max. 3-58 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 97: Chamber Temperature

    The Pressure screen displays the current reaction chamber pressure reading and sets the minimum and maximum alarm limits. Acceptable alarm limits range from 400 to 1000 mmHg. If the pressure reading goes beyond either Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-59...

  • Page 98: Min And Max Pressure Limits

    Run screen and in the Main Menu. In the Main Menu, choose Alarms > Sample Flow. SAMPLE FLOW: ACTUAL 0.550 LPM >MIN 0.000 LPM 1.000 LPM RANGE DIAGS ALARM 3-60 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 99: Lamp Intensity

    In the Main Menu, choose Alarms > Lamp Intensity > Min or Max. LAMP INTENSITY: ACTUAL MIN: 40 % SET MIN TO: 50 % ? INC/DEC SAVE VALUE RANGE DIAGS ALARM Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-61...

  • Page 100: Lamp Voltage

    Check span check screens are visible only if the zero/span check option is enabled and function the same way. In the Main Menu, choose Alarms > Zero or Span Check. 3-62 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 101: Max Zero And Span Offset

    (alarm is triggered when the concentration falls below the minimum value) or a ceiling trigger (alarm is triggered when the concentration goes above the minimum value). If the SO concentration Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-63...

  • Page 102: Min And Max So

    In the Main Menu, choose Alarms > SO Concentration > Min Trigger. MIN TRIG(CEILING/FLOOR): ACTUAL TRIGGER: CEILING SET TRIGGER TO: FLOOR ? TOGGLE AND SAVE VALUE RANGE DIAGS ALARM 3-64 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 103: Service Menu

    “Service Mode” earlier in this chapter. Note This adjustment should only be performed by an instrument service technician. ▲ In the Main Menu, choose Service > Flash Voltage Adjustment. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-65...

  • Page 104: Initial Flash Reference

    “Service Mode” earlier in this chapter. Note This adjustment should only be performed by an instrument service technician. ▲ In the Main Menu, choose Service > PMT Voltage Adjustment. 3-66 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 105: Range Mode Select

    Note This adjustment should only be performed by an instrument service technician. ▲ In the Main Menu, choose Service > Pressure Calibration. PRESSURE SENSOR CAL: >ZERO SPAN 1.2200 SET DEFAULTS RANGE DIAGS ALARM Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-67...

  • Page 106: Calibrate Pressure Zero

    In the Main Menu, choose Service > Pressure Calibration > Span. CALIBRATE PRESSURE SPAN: CURRENTLY: 756.0 mmHg SET TO: 760.0 mmHg ? MOVE CURSOR CHANGE VALUE SAVE RANGE DIAGS ALARM 3-68 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 107: Restore Default Pressure Calibration

    RANGE DIAGS ALARM The Calibrate Flow Zero screen calibrates the flow sensor at zero flow. Calibrate Flow Zero Note The pump must be disconnected before performing the zero calibration. ▲ Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-69...

  • Page 108: Calibrate Flow Zero

    In the Main Menu, choose Service > Flow Calibration > Set Defaults. RESTORE DEFAULT CAL: RESTORE DEFAULT CAL: RESTORE RESTORE ARE YOU SURE YOU WANT TO?x PRESS TO CONFIRM RESTORE RANGE DIAGS ALARM RANGE DIAGS ALARM 3-70 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 109: Input Board Test

    The Analog Output Calibration menu is a selection of analog output to calibrate, and allows the user to select the calibration action zero or span. Calibration The analog output calibration is visible only when the instrument is in Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-71...

  • Page 110: Analog Output Calibrate Zero

    In the Main Menu, choose Service > Analog Output Calibration > Selected Channel > Calibrate Zero. ANALOG OUTPUT CAL: ZERO CONNECT METER TO OUTPUT! SELECTED OUTPUT: SET TO: SAVE VALUE INC/DEC SET OUTPUT TO: 0.0 V RANGE DIAGS ALARM 3-72 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 111: Analog Output Calibrate Full-Scale

    Note This screen is present only when the I/O expansion board is installed. ▲ Note This adjustment should only be performed by an instrument service technician. ▲ In the Main Menu, choose Service > Analog Input Calibration > Input Channel 1-8. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-73...

  • Page 112: Analog Input Calibration Zero

    Channel > Calibrate Full Scale. (Hook up a voltage source of 10 V to the analog input channel.) ANALOG INPUT CAL: SPAN PROVIDE VOLTAGE TO INPUT! SELECTED INPUT: INPUT 1 CURRENTLY: 9.80 V SET TO: 10.00 V ? CALIBRATE TO VALUE RANGE DIAGS ALARM 3-74 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 113: Permeation Oven Settings

    KNOWN RESISTOR RANGE DIAGS ALARM Water Bath The Calibrate Gas Thermistor Water Bath screen allows the user to view and set the permeation oven gas temperature to a known temperature value. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-75...

  • Page 114: Resistor

    30, 35, and 45 Setpoint °C. In the Main Menu, choose Service > Perm Oven Settings > Perm Oven Selection. 3-76 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 115: Low And High Points

    The Set Defaults screen allows the user to reset the configuration values to factory defaults. In the Main Menu, choose Service > Perm Oven Settings > Factory Cal Gas Therm > Set Defaults. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-77...

  • Page 116: Factory Calibrate Oven Thermistor

    In the Main Menu, choose Service > Perm Oven Settings > Factory Cal Oven Therm > Low Point. CAL OVEN THERM LOW POINT: CURRENTLY: 3850 Ohms SET TO: 04000 Ohms MOVE CURSOR CHANGE VALUE SAVE RANGE DIAGS ALARM 3-78 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 117: Dilution Ratio

    For more information on the service mode, see “Service Mode” earlier in the chapter. In the Main Menu, choose Service > Display Pixel Test. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-79...

  • Page 118: Restore User Defaults

    The Set Password screen is used to set the password to unlock the front panel. The set password is shown if the instrument is unlocked and the password is set. 3-80 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 119: Lock Instrument

    The change password screen is shown if the instrument is unlocked. In the Main Menu, choose Password > Change Password. ENTER NEW PASSWORD: ASSSSSSSSSSSS ABCDEFGHIJKLMN BKSP OPQRSTUVWXYZ PAGE 0123456789 ./- SAVE RANGE DIAGS ALARM Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 3-81...

  • Page 120: Remove Password

    The unlock instrument is shown if the instrument is locked. In the Main Menu, choose Password > Unlock Instrument ENTER NEW PASSWORD: ABCDEFGHIJKLMN BKSP OPQRSTUVWXYZ PAGE 0123456789 ./- SAVE RANGE DIAGS ALARM 3-82 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 121: Chapter 4 Calibration

    Chapter 4 Calibration The Model 43i Trace Level-Enhanced requires initial and periodic calibration according to the procedures described in this chapter. A quality control plan that allows the frequency and number of calibration points to be modified depending on calibration and zero/span check data should be implemented.

  • Page 122: Absorbing Column

    ± 2% of the required flow rate. Ensure both flow controllers are properly calibrated. The pressure regulator for the standard SO cylinder must have a non-reactive diaphragm and internal parts and a suitable delivery pressure. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 123: Commercial Precision Dilution Systems

    A high concentration (50 ppm) of SO in air is precisely diluted to the Systems concentration range required. The Thermo Scientific Model 146 Multigas Calibration System is one such system for precision dilution. Permeation Tube Permeation tube systems which precisely maintain a set temperature to within ±0.1 °C and hold a zero air flow rate to within ±0.5% can be used...

  • Page 124: Commercial Permeation Systems

    K (SO ) = 0.382 constant for SO permeant Commercial Commercial permeation systems, such as the Thermo Scientific Model 146 Multigas Calibration System, are available for this requirement. Refer to Permeation Systems the instrument instruction manual for more information. Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 125: Multi-Point Calibration

    Run screen indicates which mode is active: ZERO, SPAN, or SAMPLE. 2. To ensure that the zero air is being measured at atmospheric pressure, check that the zero air flow reported by the analyzer is approximately Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 126 Calibrate SO screen. The first line of the display shows the current SO reading. The SPAN CONC line of the display is where you enter the calibration gas concentration. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 127: Multipoint Calibration In Dual/Auto Range Mode

    For detailed information about the menu parameters and the icons used in these procedures, see the “Operation” chapter. Note The calibration and calibration check duration times should be long enough to account for the transition (purge) process when switching from Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 128 The display flashes the message “SAVING”, and the SO reading is added to the background correction. Record the stable zero air reading as Z 6. Press to return to the Calibration menu. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 129 13. Generate five SO concentrations equally spaced between zero and the concentration above. 14. Record instrument reading for each concentration after allowing time for both gas generation system and instrument to stabilize. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 130: Zero/Span Check

    The span gas concentration used in the span check should be between 70% and 90% of the full-scale range. The zero and span drift should be measured and recorded prior to making any adjustments. 4-10 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 131 5. Connect a source of vented span gas to the SAMPLE bulkhead. The span gas should be approximately 80% of the full-scale range. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 4-11...
  • Page 132 This is the span drift since the last adjustment. If the calibration has changed by more than ±10%, a new calibration should be performed. 4-12 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 133 Equipment Damage Some internal components can be damaged by small amounts of static electricity. A properly ground antistatic wrist strap must be worn while handling any internal component. For more information about appropriate safety precautions, see the "Servicing" chapter. ▲ Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 134: Chapter 5 Preventive Maintenance

    Equipment Damage DO NOT attempt to clean the mirrors in the optical bench. These mirrors do not come in contact with the sample gas and should not be cleaned. Cleaning the mirrors can damage the mirrors. ▲ Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 135: Capillary Inspection And Replacement

    Figure 5–1. Inspecting and Replacing the Capillary 4. Remove the glass capillary (1.5-inch long x 0.250-inch OD x 0.013- inch ID) and O-ring. Refer to “Replacement Parts” in the “Servicing” chapter. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 136: Fan Filter Inspection And Cleaning

    3. Flush the filter with warm water and let dry (a clean, oil-free purge will help the drying process) or blow the filters clean with compressed air. 4. Re-install the filter and fan guard. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 137: Sample Particulate Filter Inspection

    Interface Board Voltages screen 3. Check the flash supply voltage. If this voltage is at 1200 V, it is necessary to either replace the lamp or adjust the lamp voltage control circuit. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 138: Leak Test

    Use the following procedure to rebuild the pump (Figure 5–2). To replace the pump, see “Pump Replacement” in the “Servicing” chapter. Equipment Required: Flatblade screwdriver Pump rebuild kit (flapper valve and diaphragm) Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 139: Figure 5-2. Rebuilding The Pump

    Teflon® (white) side of the diaphragm is facing up and that the flapper valves cover the holes of the top and bottom plate. Top Plate Flapper Plate Bottom Plate Diaphragm Figure 5–2. Rebuilding the Pump Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 140 Preventive Maintenance Pump Rebuilding 6. Check that the flow reads approximately 0.5 LPM when power is turned ON. 7. Perform a leak test as described in this chapter. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 141: Chapter 6 Troubleshooting

    The troubleshooting guides presented in this chapter are designed to help isolate and identify instrument problems. Guides Table 6–1. Troubleshooting - Power-Up Failures, Table 6–2. Troubleshooting - Calibration Failures, and Table 6–3. Troubleshooting - Measurement Failures provide general troubleshooting information and Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 142 Disconnect AC power and remove the gas have failed. lines from the pump head, then try to rotate the pump fan. If it is jammed, or noisy, the motor bearings may have failed. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 143: Table 6-2. Troubleshooting - Calibration Failures

    “INPUT.” The instrument reading should drop to zero or to a negative value. Instrument appears to Span cylinder empty Check the source pressure. zero, but there is weak or Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 144 (they should match). Perform a leak test, as described in the “Preventive Maintenance” chapter. is being absorbed Replace any lines made of vinyl or Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 145: Table 6-3. Troubleshooting - Measurement Failures

    (they should match). Perform a leak test, as described in the “Preventive Maintenance” chapter. Check the external plumbing for leaks or other problems. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 146 Try to localize source of noise by comparing analog signal to data collected through RS-232 or Ethernet. Poor linearity Problem with calibrator Verify accuracy of the multipoint calibration system with an independent flow meter. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 147 Verify that the recorder or data logger output. input impedance meets minimum requirements. Flow meter Dirty pump diaphragm Clean or replace pump diaphragm. fluctuations Capillary blocked Clean or replace capillary. Clogged Teflon line Inspect all sample lines. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 148: Table 6-4. Troubleshooting - Alarm Messages

    Replace the lamp power supply. voltage lamp power supply has failed High voltage (>1200V) Replace the flash lamp. - flash lamp failed Alarm - SO Concentration has Check to insure range corresponds with expected Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 149 Check that all internal cables are connected Motherboard connected properly properly. Recycle AC power to instrument. If still Status alarming, change board. Alarm - Board is defective Interface Status Alarm - I/O Exp Status Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 150: Board-Level Connection Diagrams

    AC INPUT 3 Cond 2 Pin FRON T PANEL POWER SW TRANSFO RMER 3 Pin (90V AC or 240V AC OPTIO NS) Figure 6–1. Board-Level Connection Diagram - Common Electronics 6-10 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 151: Figure 6-2. Board-Level Connection Diagram - Measurement System

    2 Pin 2 Pin CONVERTER 6 Pin CONNECTORS PJ12 (Not Used) 3 Pin BENCH HEATER AND 4 Pin 3 Pin PUMP 3 Pin Figure 6–2. Board-Level Connection Diagram – Measurement System Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 6-11...

  • Page 152: Connector Pin Descriptions

    -RS485 to Expansion Board SPARE DATA +24V +24V Ground Ground Ground +RS485 to Spare Board -RS485 to Spare Board Power Fail Relay N.C. Contact Ground TTL Input 1 TTL Input 2 6-12 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 153 TTL Input 11 TTL Input 12 TTL Input 14 TTL Input 16 Ground Analog Voltage Output 2 Analog Voltage Output 4 Ground Analog Voltage Output 6 Ground SER EN Serial Enable Jumper Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 6-13...
  • Page 154 -RS485 to Rear Panel +RS485 to Rear Panel Ground Ground Ground +24V +24V +24V +24V +24V 24V MONITOR 24V Power Monitor Ground FRONT PANEL BD Ground Ground LCLK – LCD Signal 6-14 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 155 Keypad Col 1 Select Keypad Col 4 Select Keypad Col 3 Select Ground Ground Ground Ground +24V +24V RS232/RS485:A P1:A Serial Port 1 RX (-RS485 IN) Serial Port 1 TX (-RS485 OUT) Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 6-15...

  • Page 156: Table 6-6. Measurement Interface Board Connector Pin Descriptions

    Table 6–6. Measurement Interface Board Connector Pin Descriptions Connector Label Reference Designator Signal Description DATA IPJ8 Ground +RS485 from Motherboard -RS485 from Motherboard FLASH TRIG Flash Voltage Flash Trigger Ground FLASH INT +15V 6-16 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 157 Ground +15V -15V FLOW MJ11 Flow Sensor Input Ground +15V -15V Ground MJ14 LED Drive LED Supply AMB TEMP MJ15 Ambient Temperature Thermistor Ground BENCH HEATER NTJ1 Bench Temperature Input Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 6-17...
  • Page 158 Spare 1 Solenoid Control SPAN2 SOL. PJ10 +24V Spare 2 Solenoid Control PERM OVEN THERM POJ1 Perm Oven Gas Thermistor Ground PERM OVEN POJ3 Perm Oven Heater On/Off +15V Power 6-18 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 159: Table 6-7. Front Panel Board Connector Pin Diagram

    Keypad Row 2 Input Keypad Row 1 Input Keypad Row 4 Input Keypad Row 3 Input Keypad Col 2 Select Keypad Col 1 Select Keypad Col 4 Select Keypad Col 3 Select Ground Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 6-19...
  • Page 160 Keypad Row 2 Input Keypad Row 3 Input Keypad Row 4 Input Keypad Col 1 Select Keypad Col 2 Select Keypad Col 3 Select Keypad Col 4 Select LCD BACKLIGHT +5V Supply Ground 6-20 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 161: Table 6-8. I/O Expansion Board (Optional) Connector Pin Descriptions

    Current Output Return Current Output 4 Current Output Return Current Output 5 Current Output Return Current Output 6 MOTHER BD +24V +24V Ground Ground Ground +RS485 to Motherboard -RS485 to Motherboard Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 6-21...

  • Page 162: Table 6-9. Digital Output Board Connector Pin Descriptions

    Solenoid Drive Output 3 Solenoid Drive Output 4 Solenoid Drive Output 5 Solenoid Drive Output 6 Solenoid Drive Output 7 Solenoid Drive Output 8 Relay 1 Contact b Relay 2 Contact b 6-22 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 163: Table 6-10. Input Board Connector Pin Descriptions

    Table 6–10. Input Board Connector Pin Descriptions Connector Label Reference Designator Signal Description PMT IN PMT Input Ground INTF BD +15V Ground -15V Ground Measurement Frequency Output Sample Hold Gain A Gain B Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 6-23...

  • Page 164: Service Locations

    For additional assistance, service is available from exclusive distributors worldwide. Contact one of the phone numbers below for product support Locations and technical information or visit us on the web at www.thermo.com/aqi. 1-866-282-0430 Toll Free 1-508-520-0430 International 6-24 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 165: Chapter 7 Servicing

    Chapter 7 Servicing This chapter explains how to replace the Model 43i Trace Level-Enhanced subassemblies. It assumes that a subassembly has been identified as defective and needs to be replaced. For fault location information refer to the “Preventive Maintenance” chapter and the “Troubleshooting” chapter in this manual.

  • Page 166: Firmware Updates

    Service Mode 1. At the Main Menu, press to scroll to Instrument Controls > press > to scroll to Service Mode > and press The Service Mode screen appears. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 167: Replacement Parts List

    > to return to the Main Menu. 4. Return to the procedure. Replacement Table 7–1 lists the replacement parts for the Model 43i Trace Level- Enhanced major subassemblies. Refer to Figure 7–2 to identify the Parts List component location. Table 7–1. Replacement Parts...

  • Page 168: Cable List

    Capillary O-ring 4119 Capillary, 0.008-inch ID (Perm Oven Option) Cable List Table 7–2 describes the Model 43i Trace Level-Enhanced cables. See the “Troubleshooting” chapter for associated connection diagrams and board connector pin descriptions. Table 7–2. Model 43i Trace Level-Enhanced Cables...

  • Page 169: External Device Connection Components

    Terminal Board PCB Assembly, DB37F (standard with all instruments) 102891-00 Terminal Board PCB Assembly, DB37M (standard with all instruments) 103084-00 Terminal Board PCB Assembly, DB25M (included with optional I/O Expansion Board in all instruments) Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 170: Figure 7-2. Model 43I Trace Level-Enhanced Component Layout

    Input Board Assy Mother Board Optional Transformer (not shown) Figure 7–2. Model 43i Trace Level-Enhanced Component Layout Removing the The measurement bench can be removed and the partition panel can be lowered to improve access to connectors and components. Refer to the...

  • Page 171: Removing The Measurement Bench And Lowering The Partition Panel

    1. Turn instrument OFF and unplug the power cord. 2. If the instrument is mounted in a rack, remove it from the rack. 3. Remove the cover. 4. Disconnect the plumbing connections at the rear of the measurement bench. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 172: Fuse Replacement

    4. Insert fuse drawer and reconnect power cord. Use the following procedure to replace the pump (Figure 7–4). To rebuild Pump the pump, see “Pump Rebuilding” in the “Preventive Maintenance” Replacement chapter. Equipment Required: Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 173 Pump Mounting Screws (2) (Bottom) Figure 7–4. Replacing the Pump 5. Install the new pump by following the previous steps in reverse. 6. Perform a leak test as described in the “Preventive Maintenance” chapter. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 174: Fan Replacement

    4. Remove the four fan mounting screws and remove the fan. 5. Install a new fan following the previous steps in reverse. Mounting Screws (4) Filter Fan Guard Figure 7–5. Replacing the Fan 7-10 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 175: Optical Bench Replacement

    5. Replace the optical bench by following the previous steps in reverse order. 6. Calibrate the instrument. Refer to the “Calibration” chapter in this manual. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-11...

  • Page 176: Cleaning The Mirrors

    A properly ground antistatic wrist strap must be worn while handling any internal component. ▲ 1. Turn instrument OFF, unplug the power cord, and remove the cover. 7-12 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 177 5. Remove the old lamp from the socket assembly by pulling straight out and insert the new lamp. 6. Insert the socket assembly into the lamp housing, tighten the retaining screw, and reconnect the flash trigger cable. 7. Re-install the bench. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-13...

  • Page 178: Flash Lamp Voltage Adjustment

    A properly ground antistatic wrist strap must be worn while handling any internal component. ▲ 1. Turn instrument OFF, unplug the power cord, and remove the cover. 7-14 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 179: Flash Intensity Assembly Replacement

    3. Remove the three screws securing the flash intensity assembly to the reaction chamber (Figure 7–8). 4. Install the new flash intensity assembly by following this procedure in reverse. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-15...

  • Page 180: Photomultiplier Tube Replacement

    1. Turn analyzer OFF, unplug the power cord, and remove the cover. 2. Disconnect the high voltage cable from the PMT power supply cable connector and unplug the BNC cable from the input board connector. 7-16 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 181: Pmt High Voltage Power Supply Replacement

    Philips screwdriver Equipment Damage Some internal components can be damaged by small amounts of static electricity. A properly ground antistatic wrist strap must be worn while handling any internal component. ▲ Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-17...
  • Page 182 5. Remove the four screws securing the power supply to the bracket and remove the power supply. 6. To install the power supply, follow the previous steps in reverse. 7. Recalibrate the instrument. Refer to the calibration procedures in the “Calibration” chapter. 7-18 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 183: Pmt Voltage Adjustment

    The Set PMT Voltage - Manual screen appears. 8. At the Set PMT Voltage - Manual screen, use increment/decrement the counts until the instrument displays the calibration gas concentration value. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-19...

  • Page 184: Dc Power Supply Replacement

    4. To install the DC power supply, follow the previous steps in reverse. Retaining Screws (4) Power Supply BOTTOM VIEW Captive Screw Figure 7–11. Replacing the DC Power Supply 7-20 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 185: Analog Output Testing

    Refer to the “Analog Output Calibration” procedure that follows. 8. Press to reset the analog outputs to normal. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-21...

  • Page 186: Table 7-4. Analog Output Channels And Rear Panel Pin Connections

    Figure 7–12. Rear Panel Analog Input and Output Pins Table 7–4. Analog Output Channels and Rear Panel Pin Connections Voltage Current Channel Channel Ground 16, 18, 19, 35, 37 Current Output Return 16, 18, 20, 22, 24 7-22 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 187: Analog Output Calibration

    4. With the cursor at Calibrate Zero, press Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-23...

  • Page 188: Analog Input Calibration

    2. At the Analog Input Cal screen, press to scroll to a channel, and press 3. With the cursor at Calibrate Zero, press The screen displays the input voltage for the selected channel. 7-24 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 189: Calibrating The Input Channels To Full Scale

    Step 1, and press 4. Press to scroll to Calibrate Full Scale, and press The screen displays the current input voltage for the selected channel. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-25...

  • Page 190: Pressure Transducer Assembly Replacement

    5. To install the pressure transducer assembly, follow the previous steps in reverse. 6. Calibrate the pressure transducer. Refer to the “Pressure Transducer Calibration” procedure that follows. 7-26 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 191: Pressure Transducer Calibration

    0.027 mm Hg per foot of altitude. ▲ Do not try to calibrate the pressure transducer unless the pressure is known accurately. ▲ Equipment Required: Vacuum pump Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-27...
  • Page 192 9. Wait at least 10 seconds for the ambient reading to stabilize, use to enter the known barometric pressure, and press to save the pressure value. 10. Reconnect the instrument tubing to the pressure transducer. 11. Install the cover. 7-28 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 193: Flow Transducer Replacement

    5. Install the new flow transducer following the previous steps in reverse. 6. Calibrate the flow transducer. Refer to the “Flow Transducer Calibration” procedure that follows. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-29...

  • Page 194: Flow Transducer Calibration

    Equipment Damage Some internal components can be damaged by small amounts of static electricity. A properly ground antistatic wrist strap must be worn while handling any internal component. ▲ 1. Remove the cover. 7-30 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 195 Span. The Calibrate Flow Span screen appears. 10. Wait at least 10 seconds for the reading to stabilize, use to enter the flow sensor reading, and press save the value. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-31...

  • Page 196: Heater Assembly Replacement

    8. Secure the optical bench to the floor plate with the four screws. 9. Connect the heaters to the AC BENCH cable. 10. Replace the cover and plug in the power cord. 7-32 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 197: Kicker Replacement

    1. Turn instrument OFF, unplug the power cord, and remove the cover. 2. Disconnect the plumbing connections from the flow transducer, the optical bench, and the rear bulkhead. Note the plumbing connections to facilitate reconnection. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-33...

  • Page 198: Thermistor Replacement

    1. Turn instrument OFF, unplug the power cord, and remove the cover. 2. Squeeze the thermistor latch and pull the thermistor from the AMB TEMP connector on the measurement interface board. 3. Snap the new thermistor into the AMB TEMP connector. 7-34 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 199: Ambient Temperature Calibration

    Equipment Damage Some internal components can be damaged by small amounts of static electricity. A properly ground antistatic wrist strap must be worn while handling any internal component. ▲ 1. Remove the instrument cover. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-35...

  • Page 200: Input Board Replacement

    2. Loosen the two screws securing the bracket holding the input board to the floor plate, slide the bracket towards the optical bench slightly, and lift it off the base screws. 7-36 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 201: I/O Expansion Board (Optional) Replacement

    See the “Analog Output Calibration” procedure and the “Analog Input Calibration” procedure in this chapter. ▲ Equipment Required: I/O expansion board Nut driver, 3/16-inch Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-37...
  • Page 202 6. Calibrate the analog current outputs and analog voltage inputs per the procedure earlier in this chapter. Motherboard Support Bracket Mounting Studs Motherboard Digital Output Board I/O Expansion Board (Opt) Figure 7–19. Replacing the I/O Expansion Board (Optional) 7-38 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 203 Expansion Board Replacement” procedure in this chapter. 3. Disconnect the digital output board ribbon cable from the motherboard. 4. Using the nut driver, remove the two standoffs securing the board to the rear panel (Figure 7–19). Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-39...

  • Page 204: Motherboard Replacement

    6. Pop off the motherboard from motherboard support bracket, and remove the motherboard. 7. To install the motherboard, follow previous steps in reverse. 8. Calibrate the analog voltage outputs. Refer to “Analog Output Calibration” in this chapter. 7-40 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 205: Measurement Interface Board Replacement

    4. To install the measurement interface board, follow previous steps in reverse. 5. Re-install the measurement bench. Refer to “Removing the Measurement Bench and Lowering the Partition Panel” in this chapter. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-41...

  • Page 206: Front Panel Board Replacement

    3. Pop off the board from the two top mounting studs and remove the board by lifting it up and off the slotted bottom support. 4. Replace the front panel board by following previous steps in reverse. 7-42 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 207: Lcd Module Replacement

    Do not use alcohol, acetone, MEK or other Ketone based or aromatic solvents to clean the module, use a soft cloth moistened with a naphtha cleaning solvent. ▲ Do not place the module near organic solvents or corrosive gases. ▲ Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 7-43...

  • Page 208: Service Locations

    For additional assistance, service is available from exclusive distributors worldwide. Contact one of the phone numbers below for product support Locations and technical information or visit us on the web at www.thermo.com/aqi. 1-866-282-0430 Toll Free 1-508-520-0430 International 7-44 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 209: Chapter 8 System Description

    This chapter describes the function and location of the system components, provides an overview of the software structure, and includes a description of the system electronics and input/output connections and functions as follows. Hardware Model 43i Trace Level-Enhanced hardware components (Figure 8–1) include: Hydrocarbon kicker ● Optics ●...

  • Page 210: Hydrocarbon Kicker

    The optics section provides the light source for the fluorescence reaction Optics and optimizes the reaction with a system of lenses and mirrors. It includes a flash lamp, condensing lens, mirror assembly, relay lens, and light baffle. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 211: Flash Lamp

    In the reaction chamber pulsating light from the flash lamp excites the SO Reaction Chamber molecules. A condenser lens collects and focuses light from fluorescing SO molecules onto the mirror assembly. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 212: Bandpass Filter

    Low-level embedded processors are used to control the various functions on Instrument Control the boards, such as analog and digital I/O, and heater control. These processors are controlled over a serial interface with a single high-level Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 213: Monitoring Signals

    The Communication front panel display presents the SO concentrations. The display is updated every 1-10 seconds, depending on the averaging time. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 214: Electronics

    External connectors include: External Connectors External Accessory ● RS-232/485 Communications (two connectors) ● Ethernet Communications ● I/O connector with Power Fail Relay, 16 Digital Inputs, and 6 Analog ● Voltage Outputs. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 215: Internal Connectors

    The Assembly flow transducer output is produced by measuring the pressure difference across a precision orifice. This unit is used for measuring the flow of sample gas in the measurement system. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 216: Pressure Sensor Assembly

    This board Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 217: Flash Trigger Board

    The instrument provides six analog voltage outputs. Each may be software configured for any one of the following ranges, while maintaining a Outputs minimum resolution of 12 bits: 0-100mV ● 0-1V ● 0-5V ● 0-10V ● Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 218: Analog Current Outputs (Optional)

    The user may select what information is sent out each relay and whether the active state is opened or closed. 8-10 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 219: Digital Inputs

    Data Format: Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 8-11...

  • Page 220: Ethernet Connection

    TCP/IP communications via standard IPV4 addressing. The IP address may be configured for static addressing or dynamic addressing (set using a DHCP server). Any serial port protocols may be accessed over Ethernet in addition to the serial port. 8-12 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 221: External Accessory Connector

    System Description I/O Components External Accessory The external accessory connector is not used in the Model 43i Trace Level- Enhanced analyzer. Connector This port is used in other models to communicate with smart external devices that may be mounted hundreds of feet from the analyzer using an RS-485 electrical interface.
  • Page 222 System Description I/O Components 8-14 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 223: Internal Zero/Span And Sample Valves

    EPA's Quality Assurance Handbook for Air Pollution Measurement Systems (Volume II). Figure 9–1 shows how this option is integrated with the Model 43i Trace Level-Enhanced components. Energizing the sample valve V1 shuts off the sample flow and permits the flow of zero air for analysis. When valves V1 and V2 are energized, the flow of zero air mixes with air containing SO from the permeation oven.

  • Page 224: Permeation Tube Installation

    6. Replace the glass chamber assembly into the oven until the top of the assembly is flush or slightly below the top of the oven. Equipment Damage Do not use tools to tighten the knurled screw in the following step. ▲ Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 225: Computation Of Concentrations

    Oven Selection, then select 45 ° 3. Remove the thermistor from POJ1 on the measurement interface board. 4. Connect a resistance of approximately 3.8 KΩ across pins 1 and 2 of POJ1. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 226 Factory Cal Oven Therm menu. 17. Remove resistor from POJ3 and re-attach the permeation oven. 18. Perform a thermistor calibration using the “Permeation Tube Oven Calibration” procedure that follows. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 227: Permeation Tube Oven Calibration

    2. From the Permeation Oven menu in the Service menu, select Cal Oven Thermistor (Figure 9–2). CAL OVEN THERM (RESISTOR): CURRENTLY: 4369 Ohms SET TO: 04369 Ohms MOVE CURSOR CHANGE VALUE SAVE RANGE DIAGS ALARM Figure 9–2. Cal Oven Therm Resistor Screen Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 228: Setting Temperature With Water Bath

    4. Remove the thermistor from the water bath, dry, and replace the permeation tube oven. 5. Make sure the charcoal scrubber is connected to the ZERO bulkhead on the rear panel. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 229: Setting Temperature With Known Resistance

    Use the following procedure to determine the permeation rate by weight loss. Permeation Rate by Weight Loss 1. Make sure the oven has been calibrated as described in the “Permeation Tube Oven Calibration” procedure described previously. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 230: Determining Release Rate By Transfer Standard

    2. Determine the permeation rate for the permeation tube in the Transfer Standard, or install a certified permeation tube. 3. Allow the permeation tubes in both the 43i and the Transfer Standard to stabilize for at least 48 hours. 4. Carefully calibrate the 43i using the Transfer Standard. The output of the Transfer Standard should be connected to the SAMPLE bulkhead on the rear panel of the 43i.

  • Page 231: Teflon Particulate Filter

    5. Switch the calibrated 43i into the span mode. 6. Measure the flow rate into the ZERO bulkhead on the rear panel of the 43i. Be sure that the charcoal scrubber is connected. Note the flow and measured SO concentration.

  • Page 232: Cables

    BLUE End color codes for 25-pin cables continue for 37-pin cables. VIOLET PINK/GREEN GRAY PIND/RED WHITE PINK/VIOLET PINK LIGHT BLUE LIGHT GREEN LIGHT BLUE/BROWN BLACK/WHITE LIGHT BLUE/RED BROWN/WHITE LIGHT BLUE/VIOLET 9-10 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 233: Mounting Options

    Mounted in an EIA-style rack, includes mounting slides, and front panel EIA-rack mounting handles. Retrofit rack Mounted in a Thermo non-EIA rack, includes mounting slides, and retrofit front panel rack-mounting handles. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 9-11...

  • Page 234: Figure 9-5. Rack Mount Option Assembly

    Optional Equipment Mounting Options Figure 9–5. Rack Mount Option Assembly 9-12 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 235: Figure 9-6. Bench Mounting

    Optional Equipment Mounting Options Figure 9–6. Bench Mounting Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 9-13...

  • Page 236: Figure 9-7. Eia Rack Mounting

    Optional Equipment Mounting Options Figure 9–7. EIA Rack Mounting 9-14 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 237: Figure 9-8. Retrofit Rack Mounting

    Optional Equipment Mounting Options Figure 9–8. Retrofit Rack Mounting Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual 9-15...

  • Page 239: Appendix A Warranty

    (i) normal wear and tear, (ii) accident, disaster or event of force majeure, (iii) misuse, fault or negligence of or by Buyer, (iv) use of the Products in a manner for which Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 240 OR WRITTEN, WITH RESPECT TO THE PRODUCTS, INCLUDING WITHOUT LIMITATION ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. SELLER DOES NOT WARRANT THAT THE PRODUCTS ARE ERROR-FREE OR WILL ACCOMPLISH ANY PARTICULAR RESULT. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 241: Appendix B C-Link Protocol Commands

    C-Link Protocol Commands This appendix provides a description of the C-Link protocol commands that can be used to remotely control a Model 43i Trace Level-Enhanced analyzer using a host device such as a PC or a datalogger. C-Link protocol may be used over RS-232, RS-485, or Ethernet. C-Link functions can be accessed over Ethernet using TCP/IP port 9880.

  • Page 242: Commands

    (ASCII) character. The command in the example that follows begins with the ASCII character code 171 decimal, which directs the command to the Model 43i Trace Level-Enhanced, and is terminated by a carriage return “CR” (ASCII character code 13 decimal).
  • Page 243 Sets/auto-calibrates high range SO coefficient B-23 cal low so2 coef Sets/auto-calibrates low range SO coefficient B-23 cal pres Sets current measured pressure as pressure during calibration B-26 Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 244 Reports outputs of the digital to analog converters per channel B-41 en (enter) Simulates pressing enter pushbutton B-26 Returns a brief description of the main operating conditions in B-17 the format specified in the commands Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 245 Lists current selection lrec logging data B-16 list sp Lists current selection in the scratchpad list B-16 list srec Lists current selection srec logging data B-16 list stream Lists current selection streaming data output B-16 Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 246 Reports current reaction chamber temperature B-10 relay stat Reports/sets relay logic status to for the designated relay(s) B-42 ri (right) Simulates pressing right pushbutton B-26 ru (run) Simulates pressing run pushbutton B-26 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 247: Measurements

    The example that follows shows that the averaging time is 300 seconds, according to Table B–2. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 248: Table B-2. Averaging Times

    SO when operating in dual or auto range mode. The example that follows shows that the SO concentration is 40 ppm. Send: Receive: so2 0040E+0 ppm Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 249 If pressure compensation is off, a pressure of 760 mmHg is used as default pressure even though the actual pressure is 753.4 mmHg. The example that follows shows that the actual reaction chamber pressure is 753.4 mmHg. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 250: Figure B-1. Flags

    In the example that follows, the instrument is reporting that the flash lamp is on, and the SO high concentration alarm is activated. Send: flags Receive: flags 40028000 Figure B–1. Flags B-10 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 251: Alarms

    “Entering Units in PPB” in this chapter. The example that follows sets the SO concentration alarm maximum value to 80 ppm. Send: set alarm conc so2 max 80000 Receive: set alarm conc so2 max 80000 ok Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-11...
  • Page 252 C. The example that follows sets the internal temperature alarm maximum value to 45.0 °C. Send: set internal temp alarm max 45 Receive: set internal temp alarm max 45 ok B-12 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 253 The example that follows shows the SO concentration minimum alarm trigger set to ceiling, according to Table B–3. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-13...

  • Page 254: Diagnostics

    15, negative 15, positive 5, and positive 3.3. Each voltage value is separated by a space. Send: diag volt mib Receive: diag volt mib 24.1 14.9 -14.9 4.9 3.2 B-14 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 255 These commands report the status of the optical test LED on or off. The example that follows reports that the optical test LED is on. Send: lamp status Receive: lamp status on Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-15...

  • Page 256: Datalogging

    These commands report the list of current selections for long record logging data, short record logging data, streaming data output, or the scratch pad (sp) list. The example that follows shows the list for streaming data output. B-16 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 257 0.000 Smpfl 0.440 Pres 715.478 avgt 10 lo avgt 10 SO2bkg 6.795 SO2 coef 1.000 lo SO2 coef 1.000 SO2range 10000.000 lo SO2range 10000.000 Lmpi 92.000 lrec srec lrec xxxx yy srec xxxx yy Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-17...
  • Page 258 ASCII without text, ASCII with text, or binary. The example that follows shows the output format for long records is ASCII with text, according to Table B–4. B-18 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 259: Table B-4. Record Output Formats

    7 blocks were reserved for long records, and the maximum number of long records that can be stored in memory is 1426. Send: lrec mem size Receive: lrec mem size 1426 recs, 7 blocks Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-19...
  • Page 260 = 0 to 100 These commands set the percent of memory space allocated for long and short records to value, where value is a floating-point number representing B-20 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 261 The example that follows copies the current list in scratch pad into the long records list. Send: set copy sp to lrec Receive: set copy sp to lrec ok Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-21...
  • Page 262 1 34 Receive: set sp field 1 34 ok stream per This command reports the currently set time interval in seconds for streaming data. Send: stream per Receive: stream per 10 B-22 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 263: Calibration

    “can’t, wrong settings”. The example that follows shows a successful auto-calibration of the low SO coefficient. Send: set cal low so2 coef Receive: set cal low so2 coef ok Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-23...
  • Page 264 The example that follows sets the SO background to 21.4 ppb. B-24 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 265 This command automatically sets the current pressure as the calibration pressure. The example that follows successfully sets the calibration pressure to 120.5 mmHg. Send: set pres cal 120.5 Receive: set pres cal 120.5 ok Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-25...

  • Page 266: Keys/Display

    It is sent as a type '5' binary c_link response with no checksum. The RLE encoding consists of a 0 followed by an 8-bit count of consecutive 0xFF bytes. The following 'c' code will expand the incoming data. B-26 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 267: Measurement Configuration

    If the mode is incorrect, the instrument responds with “can’t, wrong settings”. The example that follows reports that the SO full-scale range to 50 ppm, according to Table B–6 and Table B–7. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-27...

  • Page 268: Table B-6. Standard Ranges

    Table B–7. The example that follows sets the SO full-scale range to 100 ppm. Send: set range 3 Receive: set range 3 ok Table B–6. Standard Ranges Selection mg/m 0.05 Table B–7. Extended Ranges Selection mg/m B-28 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 269 Receive: set range mode single ok gas mode This command reports the current mode of sample, zero, or span. The example that follows reports that the gas mode is sample. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-29...
  • Page 270 This command sets the gas units to ppm or mg/m . The example that follows sets the gas units to mg/m Send: set gas unit mg/m3 Receive: set gas unit mg/m3 ok B-30 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 271: Hardware Configuration

    This command sets the screen’s level of contrast, according to Table B–8. The example that follows sets the contrast level to 50%. Send: set contrast 5 Receive: set contrast 5 ok Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-31...

  • Page 272: Table B-8. Contrast Level

    Receive: set conv set temp 50.1 ok date This command reports the current date. The example that follows reports the date as December 1, 2004. Send: date Receive: date 12-01-04 B-32 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 273 PMT is on. Send: pmt status Receive: pmt status on set pmt onoff These commands set the PMT on or off. The example that follows turns the PMT off. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-33...

  • Page 274: Communications Configuration

    Send: addr dns Receive: addr dns 192.168.1.1 set addr dns address This command sets the dns address, where address consists of four numbers ranging from 0-255 inclusive, separated by “.”. B-34 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 275 This command sets the nm address, where address consists of four numbers ranging from 0-255 inclusive, separated by “.”. Send: set addr nm 255.255.255.0 Receive: set addr nm 255.255.255.0 ok Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-35...
  • Page 276 This command reports the current reply termination format. The example that follows shows that the reply format is 00, which means reply with no checksum, according to Table B–9. B-36 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 277: Table B-9. Reply Termination Formats

    This command reports the instrument name. Send: instr name Receive: instr name SO2 Analyzer SO2 Analyzer instrument id This command reports the instrument id. Send: instrument id Receive: instrument id 12 Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-37...

  • Page 278: I/O Configuration

    This command reports the analog current output range setting for channels, where channel must be between 1 and 6, inclusive. The example that follows reports current output channel 4 to the 4-20 mA range, according B-38 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 279: Table B-10. Analog Current Output Range Values

    This command sets analog voltage output channel to the range, where channel is between 1 and 6 inclusive, and range is set according to Table B– 11. The example that follows sets channel 2 to the 0-10 V range. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-39...

  • Page 280: Table B-11. Analog Voltage Output Range Values

    The example that follows reports the input 4 to be assigned an index number 11 corresponding to general alarm with the active state being open. B-40 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 281: Table B-12. Default Output Assignment

    Not Assigned Not Assigned Not Assigned Current Output Not Assigned Not Assigned Not Assigned Current Output Not Assigned Not Assigned Not Assigned Current Output Not Assigned Not Assigned Not Assigned Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-41...
  • Page 282 Note If individual relays have been assigned different logic then the response would be a 4-digit hexadecimal string with the least significant byte (LSB) being relay no 1. ▲ B-42 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 283: Record Layout Definition

    ASCII ERec response. Parameters are separated ASCII Responses by spaces and the line is terminated by a \n (the normal line separator character). Valid fields are: Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-43...

  • Page 284: Format Specifier For Binary Responses

    DATA/ERec command. It also displays, though background changes, alarm status. The button, when pressed, triggers input from either a dialog box or a selection list. There are five kinds of buttons, B, I, L, T, and N. B-44 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 285: Text

    Then, there appears an optional translation table within braces '{}'. This is Translation Table a string of words separated by spaces. An example translation table would be '{Code_0 Code_1 Code_2 Code_3}'. The value, once extracted is used Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-45...

  • Page 286: Selection Table

    No user-prompting happens. Some examples ('\n' is the C syntax for an end-of-line character): Examples Concentrations\n This is a single text-only line. This is a single blank line. NO:3s\n B-46 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 287 The 'T' button indicates full translation, input code to string, and user selection number to output string. This is a line that starts a new column (the \xC or ^L), Comp:6.11x{off on}Tset temp comp %s\n Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual B-47...
  • Page 288 The background value is taken from the 7th element, and the precision specifier is taken from the 8th. If the asterisk were not present, it would indicate instead that 8 digits after the decimal point should be displayed. B-48 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 289: Appendix Cmodbus Protocol

    This is achieved by using the supported MODBUS commands listed below. For details of the Model 43i Trace Level-Enhanced MODBUS Protocol specification, see the following topics: “Serial Communication Parameters” on page C-2.

  • Page 290: Application Data Unit Definition

    0x00 to 0xFF (Passed back in response) A Slave address is not required in MODBUS over TCP/IP because the higher-level protocols include device addressing. The unit identifier is not used by the instrument. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 291: Function Code

    If the returned output quantity is not a multiple of eight, the remaining bits in the final data byte will be padded Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 292 Here is an example of a request and response to read outputs 2–15: Request Field Name (Hex) Function 0x01 Starting Address Hi 0x00 Starting Address Lo 0x02 Quantity of Outputs Hi 0x00 Quantity of Outputs Lo 0x0D Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 293: (0X03/0X04) Read Holding Registers / Read Input Registers

    (0x03/0x04) Read Holding Read holding / input registers reads the measurement data from the instrument. Issuing either of these function codes will generate the same Registers / Read Input Registers Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 294 Here is an example of a request and response to read registers 10–13: Request Field Name (Hex) Function 0x03 Starting Address Hi 0x00 Starting Address Lo 0x09 No. of Registers Hi 0x00 No. of Registers Lo 0x04 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 295: (0X05) Force (Write) Single Coil

    0x0000 to maximum allowed by instrument Output Value 2 Bytes 0x0000 or 0xFF00 Response Function code 1 Byte 0x05 Starting Address 2 Bytes 0x0000 to maximum allowed by instrument Output Value 2 Bytes 0x0000 or 0xFF00 Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 296: Modbus Commands Supported

    Output Value Hi Output Value Lo Tables C1 through C3 list the MODBUS commands supported for the MODBUS Model 43i Trace Level-Enhanced. Commands Supported Table C–1. Read Registers for 43i Trace Level-Enhanced Register Number Variable 40001&40002 SO2 CONC 40003&40004 NOT USED 40005&40006...

  • Page 297: Table C-2. Write Coils For 43I Trace Level-Enhanced

    ANALOG IN 6 (I/O Expansion Board installed) 40053&40054 ANALOG IN 7 (I/O Expansion Board installed) 40055&40056 ANALOG IN 8 (I/O Expansion Board installed) Table C–2. Write Coils for 43i Trace Level-Enhanced Coil Number Action Triggered ZERO MODE SPAN MODE SO2 MODE...

  • Page 298: Table C-3. Read Coils For 43I Trace Level-Enhanced

    MODBUS Protocol MODBUS Commands Supported Coil Number Action Triggered CAL TO HIGH SPAN Table C–3. Read Coils for 43i Trace Level-Enhanced Coil Number Status AUTORANGE LOCAL/REMOTE SERVICE UNITS (0 = ppb; 1 = μg/m ZERO MODE SPAN MODE SAMPLE MODE...
  • Page 299 MODBUS Protocol MODBUS Commands Supported Coil Number Status ZERO CHK/CAL ALARM (Zero/Span Option) SPAN CHK/CAL ALARM (Zero/Span Option) Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual C-11...
  • Page 300 MODBUS Protocol MODBUS Commands Supported C-12 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 301: Serial Communication Parameters

    This is achieved by using the supported Geysitech commands listed below. For details of the Model 43i Trace Level-Enhanced Geysitech Protocol specification, see the following topics: “Serial Communication Parameters”...

  • Page 302: Tcp Communication Parameters

    Each Command is framed by control characters, <STX> at the start and terminated with either <ETX> or <CR>. If a command is terminated with <ETX> then additional two characters <BCC> is attached after <ETX>, this is the block checksum. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 303: Block Checksum

    Command ‘K’ switches the instrument gas mode to Span mode. Command ‘M’ switches the instrument gas mode to Sample mode. The following are the different acceptable formats of the ST command: <STX>ST<address><control command><ETX><BCC> <STX>ST<address><control command><CR> <STX>ST<address><SP><control command><CR> <STX>ST<address><SP><control command><ETX><BCC> Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 304: Data Sampling/Data Query Command (Da

    <STX> which is followed by the characters DA, and the <address> (if present) matches the Instrument Address, and the command is terminated with either <CR> with no checksum or <ETX> followed by the correct checksum <BCC>. Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 305 Table D–1 Table D–2 below. <SFKT>: is the space provided for future use for special function, it currently contains a string of ten 0’s i.e. <0000000000>. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...

  • Page 306: Measurements Reported In Response To Da Command

    Single Range Mode The 1 measurement reported in single range mode includes: ● Dual/Auto Range Mode The 2 measurements reported in dual or auto range modes include: low SO ● high SO ● Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 307: Operating And Error Status

    Table D–2. Error Status for Model 43 i Trace Level-Enhanced Hex-value Error status: Internal Temperature Alarm Reaction Chamber Temperature Alarm Lamp Intensity Alarm Lamp Voltage Alarm Pressure Alarm Sample Flow Alarm Permeation Gas Temperature Alarm Not used Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 308 Geysitech (Bayern-Hessen) Protocol Geysitech Commands Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...

  • Page 309: Appendix E Standards For Trace Level Analyzers

    ± 5%. Multi-point concentrations from 0.5 ppb to 10 ppb may be similarly generated, establishing the linearity of the particular analyzer being calibrated. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...
  • Page 310 When calibrating the zero in the Model 42i Trace Level, the background levels are calculated and available in the Calibration Factors menu. Normal background levels are in the 0.5 to 1.5 Model 43i Trace Level-Enhanced Instruction Manual Thermo Fisher Scientific...
  • Page 311 Although extra care is required, primarily in zero air generation, users familiar with normal compliance requirements should be able with minimal additional effort to obtain valid concentration data. Thermo Fisher Scientific Model 43i Trace Level-Enhanced Instruction Manual...