Page 1 42iQ Instruction Manual NO-NO Analyzer 117435-00 • 1Apr2020...
Page 3: Table Of Contents
View Data Log (User Defined Time) ..........3-33 Advanced Data Setup ..............3-35 Data Logging Setup ..............3-36 Select Data Logging Variables ............. 3-37 Streaming Data Setup ..............3-38 Select Streaming Variables ............3-39 Thermo Scientific 42iQ Instruction Manual...
Page 4 Firmware Update Via USB Drive ..........3-126 Download Data To USB Drive ..........3-130 Change USB Password .............. 3-133 Reset USB Password ..............3-135 User Contact Information ............3-136 Update Bootloader ............... 3-137 42iQ Instruction Manual Thermo Scientific...
Page 5 Calibrate NO Low ................ 4-19 Calibrate NO High ................ 4-20 Calibrate NO High ............... 4-20 Calibrate NO High ............... 4-21 Zero and Span Check ................ 4-21 Manual Calibration ................4-22 Thermo Scientific 42iQ Instruction Manual...
Page 6 Power Supply Replacement ............... 7-25 Step POL Board Replacement ............7-27 DMC PMT Cooler and Reaction Chamber Replacement ....7-30 PMT Cooler Shroud Removal ............7-30 PMT Cooler Board Replacement ........... 7-32 42iQ Instruction Manual Thermo Scientific...
Page 7 Solenoid Valve Panel ................ 8-7 Flow/Pressure DMC ................8-7 Firmware ..................... 8-8 Chapter 9 Optional Equipment ..................9-1 Connecting External Devices .............. 9-1 Communication Board ..............9-2 Thermo Scientific 42iQ Instruction Manual...
Page 8 Appendix B List of Figures ..................B-1 List of Tables..................B-3 Appendix C GNU Lesser General Public License ............C-1 GNU Lesser General Public License ........... C-1 viii 42iQ Instruction Manual Thermo Scientific...
Page 9: Chapter 1 Introduction
This analyzer is a single chamber, single photomultiplier tube design that cycles between the NO and NO modes. The 42iQ Analyzer has independent outputs for NO, NO and NO that can be calibrated separately. If required, the instrument can be operated...
Page 10: Figure 1-1. 42Iq Front
PC. The ePort control mirrors the same GUI look and feel as the instrument touchscreen providing a speedy and familiar operational experience. Figure 1–1. 42iQ Front 42iQ Instruction Manual Thermo Scientific...
Page 11: Principle Of Operation
Introduction Principle of Operation Principle of The 42iQ operates on the principle that nitric oxide (NO) and ozone (O react to produce a characteristic luminescence with an intensity linearly Operation proportional to the NO concentration. Infrared light emission results when molecules decay to lower energy states.
Page 12: Figure 1-2. 42Iq Flow Schematic
Introduction Principle of Operation Figure 1–2. 42iQ Flow Schematic Figure 1–3. 42iQ Flow Schematic with Zero Span 42iQ Instruction Manual Thermo Scientific...
Page 13: Specifications
Introduction Specifications Specifications Table 1–1 lists the specifications for the 42iQ. Table 1–1. 42iQ Specifications Range 020 ppm 030 mg/m Extended Ranges 0100 ppm 0150 mg/m Zero Noise 0.20 ppb RMS (60 second averaging time) Detection Limit 0.40 ppb (60 second averaging time) Zero Drift <0.40 ppb (24 hour)
Page 14: Table 1-2. 42Iq Optional Permeation Oven Specifications
Accepts permeation tubes up to 9 cm in total length; 1 cm in diameter Physical Dimensions Contained inside the 42iQ Power Requirements 24 VDC, 50 watts (in addition to the standard 42iQ) Weight Approximately five pounds (in addition to standard 42iQ) 42iQ Instruction Manual Thermo Scientific...
Page 15: Dimensions
Introduction Dimensions Dimensions Figure 1–4. Bench Mount Assembly (dimensions in inches [mm]) Thermo Scientific 42iQ Instruction Manual...
Page 16: Figure 1-5. Rack Mount Assembly (Dimensions In Inches [Mm])
Introduction Dimensions Figure 1–5. Rack Mount Assembly (dimensions in inches [mm]) 42iQ Instruction Manual Thermo Scientific...
Page 17: Figure 1-6. Rack Mount Requirements
Introduction Dimensions Figure 1–6. Rack Mount Requirements Figure 1–7. Rack Requirements Part 2 Thermo Scientific 42iQ Instruction Manual...
Page 19: Installation And Setup
▲ Unpacking and The 42iQ is shipped complete in one container. If there is obvious damage to the shipping container when you receive the instrument, notify the Inspection carrier immediately and hold for inspection. The carrier is responsible for any damage incurred during shipment.
Page 20: Cover Removing And Replacing
2. Press in both latches located on top cover and hold while pulling up to remove. Set upright. Figure 2–1. Removing the Cover 3. To replace, align cover and drop in. Latches will automatically snap in place. 42iQ Instruction Manual Thermo Scientific...
Page 21: Mounting Options
● Bench Mount Positioned on bench, includes installing feet. See Figure 2–2. Equipment required: Slot drive, 5/16-inch 1. Fasten feet in position 1 or 2 to fit to the desired depth. Figure 2–2. Installing Feet Thermo Scientific 42iQ Instruction Manual...
Page 22: Rack Mount
2. Unfasten the four 8-32 x 3/16-inch pan head screws. 3. Slide ears outwards. 4. Use the same four 8-32 x 3/16-inch pan head screws to secure it. 5. Install the handles with the four 8-32 x 3/16-inch flat head screws. 42iQ Instruction Manual Thermo Scientific...
Page 23: Figure 2-4. Installing Ears And Handles
Installation and Setup Mounting Options Figure 2–4. Installing Ears and Handles Thermo Scientific 42iQ Instruction Manual...
Page 24: Setup Procedure
3-62. 5. Plug the instrument into an outlet of the appropriate voltage and frequency. Note If instrument is equipped with an internal permeation oven, refer to Chapter 9, “Optional Equipment” for setup instructions. ▲ 42iQ Instruction Manual Thermo Scientific...
Page 25: Figure 2-5. 42Iq Rear Panel
Installation and Setup Setup Procedure Icon Here The 42iQ is supplied with a three-wire grounding cord. Under no circumstances should this grounding system be defeated. ▲ Figure 2–5. 42iQ Rear Panel Figure 2–6. Atmospheric Dump Bypass Plumbing Thermo Scientific 42iQ Instruction Manual...
Page 26: Startup
For more information about instrument parameters, see the “Operation” chapter. 4. Before beginning the actual monitoring, perform a multipoint calibration as described in the “Calibration” chapter. Figure 2–7. Front Panel and Touchscreen Display 42iQ Instruction Manual Thermo Scientific...
Page 27: Chapter 3 Operation
The Status Bar, located at the bottom, includes the Back button, Access Levels, Health Check, Favorites, Date and Time, and Contact Information. Home Screen (single range mode) Title Bar User Interface Status Bar Thermo Scientific 42iQ Instruction Manual 3-1...
Page 28 Operation Instrument Display Home Screen (dual or auto range mode) Title Bar User Interface Status Bar 42iQ Instruction Manual Thermo Scientific...
Page 29 The user will be directed to the favorites screen where the user chooses the button position. To remove a favorite button from the favorites screen, press and hold button for 2 seconds. Clock: Displays current date and time. ● Thermo Scientific 42iQ Instruction Manual...
Page 30 Operation Instrument Display Thermo Scientific Information button: Shows contact information. ● 42iQ Instruction Manual Thermo Scientific...
Page 31: Main Menus And Keypads
Coefficient  Alarm Setpoints  Reset Bkg and Span Coef  Ozonator Safety  Calibration History  PMT Supply  Ozonator Supply  Display Setup  Clock  Language  Pump Power  Reboot Instrument Configuration Security Access Levels USB Drive  Firmware Update Via USB User Contact Information Drive  Download Data to USB Drive  Change USB Password Update Bootloader Thermo Scientific 42iQ Instruction Manual...
Page 32: Numeric Keypad
Enter a new value using the keypad, and then select the Enter button to set the new value or press the Cancel button to exit the keypad screen and return to the previous screen without saving the value. 42iQ Instruction Manual Thermo Scientific...
Page 33: Alphanumeric Keypad
Cancel button to exit the keypad screen and return to the previous screen without saving the value. The alphanumeric keypad is only available when the user needs to enter alphabet characters. Thermo Scientific 42iQ Instruction Manual...
Page 34 Operation Instrument Display 42iQ Instruction Manual Thermo Scientific...
Page 35: Calibration
, and NO span ● coefficients. Zero/Span Schedule: Programs the instrument to perform fully ● automated zero and span checks or adjustments. Advanced Calibration: Calibrates the instrument using manual ● zero/span calibration and provides calibration history. Thermo Scientific 42iQ Instruction Manual...
Page 36 NO and NO Backgrounds Home Screen>Calibration>Calibrate Backgrounds The Calibrate Backgrounds screen contains the following information: Calibrate NO Background: Sets the NO background to zero. ● Calibrate NO Background: Sets the NO background to zero. ● 3-10 42iQ Instruction Manual Thermo Scientific...
Page 37: Calibrate No And No Background
Current NO Concentration: Read only. Displays what the current NO ● concentration is. Current NO Background: Read only. Displays what the current user-set ● NO background is. Thermo Scientific 42iQ Instruction Manual 3-11...
Page 38 Calculated NO Background: Read only. Displays what the user-set NO ● background will become when the calibrate button is pressed. Calibrate: When pressed, updates the background value, making the ● concentration go to zero. 3-12 42iQ Instruction Manual Thermo Scientific...
Page 39: Calibrate Span Coefficients
300-second averaging. Home Screen>Calibration>Calibrate Span Coefficients (single range mode) Home Screen>Calibration>Calibrate Span Coefficients (dual or auto range mode) Thermo Scientific 42iQ Instruction Manual 3-13...
Page 40 Span Coefficient: Sets the high range NO ● span coefficient when in dual or auto range mode. Calibrate Low Range NO Span Coefficient: Sets the low range NO span ● coefficient when in dual or auto range mode. 3-14 42iQ Instruction Manual Thermo Scientific...
Page 41: Calibrate No, No 2 , And No X Span Coefficient
To achieve maximum precision, allow the instrument to stabilize each time input gas is changed and set the averaging time to 300-second averaging. Home Screen>Calibration>Calibrate Span Coefficient (single range mode) Thermo Scientific 42iQ Instruction Manual 3-15...
Page 42 Concentration” value is entered, the new calculated NO span coefficient is displayed. Calculated High Range NO Span Coefficient: Read only. After the “Edit ● Span Concentration” value is entered, the new calculated high range NO span coefficient is displayed. 3-16 42iQ Instruction Manual Thermo Scientific...
Page 43 Calculated Low Range NO Span Coefficient: Read only. After the “Edit ● Span Concentration” value is entered, the new calculated low range NO span coefficient is displayed. Calibrate: When pressed, updates the coefficient and the concentration ● should match the span concentration. Thermo Scientific 42iQ Instruction Manual 3-17...
Page 44 Zero Duration: Sets how long zero air is sampled by the instrument. ● Span Duration: Sets how long span gas is sampled by the instrument. ● Purge Duration: Sets how long the purge period will be at the end of ● the schedule. 3-18 42iQ Instruction Manual Thermo Scientific...
Page 45 1:1. (This means that each time the schedule is run, both the zero duration and span duration occurs.) The zero/span ratio is allowable between 1 to 99. If 99 is chosen, the schedule should only perform the Span on the 99th iteration. Thermo Scientific 42iQ Instruction Manual 3-19...
Page 46: Advanced Calibration
Home Screen>Calibration>Advanced Calibration The Advanced screen contains the following information: Manual Calibration: The user manually adjusts the background or span ● coefficient. Calibration History: Lists all calibrations performed and calibration ● checks. 3-20 42iQ Instruction Manual Thermo Scientific...
Page 47: Manual Calibration
Adjust Backgrounds: Allows the user to manually adjust the zero ● backgrounds. Adjust Span Coefficients: Allows the user to manually adjust the span ● coefficients. Reset Bkgs to 0.000 and Span Coef to 1.000: Resets all backgrounds and ● coefficients. Thermo Scientific 42iQ Instruction Manual 3-21...
Page 48 Home Screen>Calibration>Advanced Calibration>Manual Calibration>Adjust Backgrounds The Adjust Backgrounds screen contains the following information: Adjust NO Background: User manually adjusts zero NO background. ● Adjust NO Background: User manually adjusts zero NO background. ● 3-22 42iQ Instruction Manual Thermo Scientific...
Page 49 Background screens contains the following information: Adjust NO Background: User manually adjusts zero NO background. ● Adjusted NO Concentration: Read only. Displays what the NO ● concentration value will become when the calibrate button is pressed. Thermo Scientific 42iQ Instruction Manual 3-23...
Page 50 Concentration: Read only. Displays what the NO ● concentration value will become when the calibrate button is pressed. Current NO Concentration: Read only. Displays the current NO ● concentration. Calibrate: When pressed, updates the background. ● 3-24 42iQ Instruction Manual Thermo Scientific...
Page 51 The Adjust Span Coefficients screen contains the following information: Calibrate NO Coefficient: Adjusts the NO coefficient when in single ● range mode. Calibrate NO High Range Coefficient: Adjusts the NO high range ● coefficient when in dual or auto range mode. Thermo Scientific 42iQ Instruction Manual 3-25...
Page 52 High Range Coefficient: Adjusts the NO high range ● coefficient when in dual or auto range mode. Calibrate NO Low Range Coefficient: Adjusts the NO low range ● coefficient when in dual or auto range mode. 3-26 42iQ Instruction Manual Thermo Scientific...
Page 53 To achieve maximum precision, allow the instrument to stabilize each time input gas is changed and set the averaging time to 300-second averaging. Home Screen>Calibration>Advanced Calibration>Manual Calibration>Adjust Span Coefficients>Adjust NO Span Coefficient (single range mode) Thermo Scientific 42iQ Instruction Manual 3-27...
Page 54 Adjusted Low Range NO Concentration: Read only. Shows current low ● range NO concentration when in dual or auto range mode. Calibrate: Calibrates span coefficient by saving the newly adjusted span ● coefficient. 3-28 42iQ Instruction Manual Thermo Scientific...
Page 55: Calibration History
Event: Lists the type of calibration event. ● Result: Concentration result. ● Target: Concentration setpoint value. ● Units: Displays units for each item. ● Average Time: Averaging time used during the calibration or calibration ● check. Thermo Scientific 42iQ Instruction Manual 3-29...
Page 56: Data
View Data Log (User Defined Time): User selects the start and end time ● for viewing the data. Table shows most recent data on top. Advanced Data Setup: Allows the user to set up the parameters of how ● the data is stored. 3-30 42iQ Instruction Manual Thermo Scientific...
Page 57: View Data Log (Last Hour)
▲ The View Data Log (Last Hour) screen contains the following options: Graph: Displays data graph for the column selected. The graph time ● axis is defined by the data set in the table. Thermo Scientific 42iQ Instruction Manual 3-31...
Page 58: View Data Log (Last 24 Hours)
The View Data Log (Last 24 Hours) screen contains the following options: Graph: Displays data graph for the column selected. The graph time ● axis is defined by the data set in the table. 3-32 42iQ Instruction Manual Thermo Scientific...
Page 59: View Data Log (User Defined Time)
Time: Sets time of data logging start time. ● Save Data Logging Start Time: Pressing this button saves the start time ● and follows directly to the end time selection for the data logging screen. Thermo Scientific 42iQ Instruction Manual 3-33...
Page 60 Time button saves the end time and follows directly to the data logging table. Note End time should not be greater than 1 year from start time . ▲ Note The datalogging table is limited to 10,000 points. ▲ 3-34 42iQ Instruction Manual Thermo Scientific...
Page 61: Advanced Data Setup
The Advanced Data Setup screen contains the following information: Data Logging Setup: User selects the parameters for collecting logged ● data. Streaming Data Setup: User selects the parameters for streaming data to ● a computer in real time. Thermo Scientific 42iQ Instruction Manual 3-35...
Page 62: Data Logging Setup
When set to minimum or maximum, the minimum or maximum value during the period will be recorded. Erase Data Log Records: Allows the user to erase all values in the data log ● and updates the data logging table. 3-36 42iQ Instruction Manual Thermo Scientific...
Page 63: Select Data Logging Variables
Use the  and  buttons to scroll through the variables. Select the variables to log by pressing the corresponding cells. Next, press the Commit Changes button to save selections. Yellow buttons indicate that the variable is selected. Home Screen>Data>Advanced>Data Logging Setup>Select Data Logging Variables Thermo Scientific 42iQ Instruction Manual 3-37...
Page 64: Streaming Data Setup
Show Labels: Toggles on/off. When on, shows variable labels to the left ● of the variable values. Show Timestamp: Toggles on/off. When on, shows timestamp at the ● beginning of each row of data. 3-38 42iQ Instruction Manual Thermo Scientific...
Page 65: Select Streaming Variables
Use the  and  buttons to scroll through the variables. Select the variables to log by pressing the corresponding cells. Next, press the Commit Changes button to save selections. Yellow buttons indicate that the variable is selected. Home Screen>Data>Advanced>Streaming Data Setup>Select Streaming Variables Thermo Scientific 42iQ Instruction Manual 3-39...
Page 66: Settings
USB Drive: User can update instrument firmware, download data, and ● change USB password. User Contact Information: User sets up their contact information. ● Update Bootloader: Used to update bootloader when an update to the ● bootloader is available. 3-40 42iQ Instruction Manual Thermo Scientific...
Page 67: Health Check
Maintenance History: Allows the user to set up a maintenance schedule ● and track maintenance history. File Sharing and Support: File sharing via email. Support through ● Thermo Fisher Scientific technical support. Firmware Version: Shows the instrument’s firmware version. ● Thermo Scientific 42iQ Instruction Manual 3-41...
Page 68: Status And Alarms
Reaction Chamber: Displays reaction chamber alarms and faults. ● Ozonator: Displays ozonator alarms and faults. ● Converter: Displays NO converter alarms and faults. ● Perm Oven: Displays perm oven module alarms and faults. ● 3-42 42iQ Instruction Manual Thermo Scientific...
Page 69 Valve and Pump Resets: User can reset valve and pump power. ● Analog I/O: Displays analog input/output alarms and faults. ● Digital I/O: Displays digital input/output alarms and faults. ● Serial Numbers: Displays all the serial numbers for the instrument. ● Thermo Scientific 42iQ Instruction Manual 3-43...
Page 70 Span Conc: Span concentration used in the span calibration or span ● check. Units: Displays units for each item. ● Down: ● NO: NO concentration. ● : NO concentration. ● : NO concentration. ● 3-44 42iQ Instruction Manual Thermo Scientific...
Page 71 (compared to the span concentration value). Span concentration shows span setpoint. Note If both the low alarm and high alarms are set to zero, then no alarm will show. ▲ Thermo Scientific 42iQ Instruction Manual 3-45...
Page 72 Chamber Pressure: Displays the current chamber pressure reading. ● Chamber Temperature: Displays the current chamber temperature ● reading. User can adjust low and high alarm limits. Chamber Temp Sensor Short: Displays OK/Fail for chamber ● temperature sensor short. 3-46 42iQ Instruction Manual Thermo Scientific...
Page 73 No voltage rows ever get highlighted. 3.3 V Diagnostic: Displays current voltage readings. Alarm ● limits are not changeable. 5 V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. Thermo Scientific 42iQ Instruction Manual 3-47...
Page 74 12 V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. -12 V Diagnostic: Displays current voltage readings. Alarm ● limits are not changeable. 24 V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 3-48 42iQ Instruction Manual Thermo Scientific...
Page 75 Board Communication: Displays OK/Fail for board communication ● status. Power Supply: Displays OK/Fail of power supplies. Power supply ● goes red if any voltages are outside their limits. No voltage rows ever get highlighted. Thermo Scientific 42iQ Instruction Manual 3-49...
Page 76 5 V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 15 V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 24 V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 3-50 42iQ Instruction Manual Thermo Scientific...
Page 77 User can adjust low and high alarm limits. Thermocouple Open: Displays OK/Fail for NO thermocouple ● open. Thermocouple Short: Displays OK/Fail for NO thermocouple ● short. Board Communication: Displays OK/Fail for board communication ● status. Thermo Scientific 42iQ Instruction Manual 3-51...
Page 78 3 V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 3.3 V Diagnostic: Displays current voltage readings. Alarm ● limits are not changeable. 5 V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 3-52 42iQ Instruction Manual Thermo Scientific...
Page 79 Power Supply: Displays OK/Fail of power supplies. Power supply ● goes red if any voltages are outside their limits. No voltage rows ever get highlighted. 2.5 V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. Thermo Scientific 42iQ Instruction Manual 3-53...
Page 80 3.3 V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 5.0 V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. Heater Power Diagnostic: Displays current heater voltage readings. ● Alarm limits are not changeable. 3-54 42iQ Instruction Manual Thermo Scientific...
Page 81 User can adjust low and high alarm limits. Sample Input Pressure: Displays the current sample input pressure ● reading. Instrument Temperature: Displays the current instrument ● temperature reading. User can adjust low and high alarm limits. Thermo Scientific 42iQ Instruction Manual 3-55...
Page 82 3.3V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 5.0V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 24V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 3-56 42iQ Instruction Manual Thermo Scientific...
Page 83 Zero Valve: Displays whether or not the zero valve is activated. ● Span Valve: Displays whether or not the span valve is activated. ● NO/NOx Mode Valve: Displays whether or not the NO/NO mode ● valve is activated. Thermo Scientific 42iQ Instruction Manual 3-57...
Page 84 24V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 5.0V Step Board 1: Displays OK/Fail. ● 24V Step Board 1: Displays OK/Fail. ● 5.0V Step Board 2: Displays OK/Fail. ● 24V Step Board 2: Displays OK/Fail. ● 3-58 42iQ Instruction Manual Thermo Scientific...
Page 85 The Valve and Pump Resets screen contains the following information: Sample Valve Reset: Resets sample valve. ● Zero Valve Reset: Resets zero valve. ● Span Valve Reset: Resets span valve. ● NO/NO Valve Reset: Resets NO/NO valve. ● Pump Reset: Resets pump. ● Thermo Scientific 42iQ Instruction Manual 3-59...
Page 86 Current Output Channel 1–6: Displays real-time current output for ● each channel. Chip Temperatures: Displays OK/Fail for chip temperatures. ● Chip 1–3 Communication: Displays OK/Fail for each chip ● communication. Test Mode: Displays test mode on or off. ● 3-60 42iQ Instruction Manual Thermo Scientific...
Page 87 5.0V Ref Diagnostic: Displays current voltage readings. Alarm ● limits are not changeable. 15V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. -15V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. Thermo Scientific 42iQ Instruction Manual 3-61...
Page 88 External Alarm 1–3: Displays OK/Fail for external alarms. ● Relay Test Mode: Displays relay test mode on or off. ● Solenoid Test Mode: Displays solenoid test mode on or off. ● Board Communication: Displays OK/Fail for communication status. ● 3-62 42iQ Instruction Manual Thermo Scientific...
Page 89 3.3V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 5.0V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 24V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. Thermo Scientific 42iQ Instruction Manual 3-63...
Page 90 Perm Oven: Optional perm oven serial number. ● Flow and Pressure: Flow and pressure serial number. ● Peripherals Support: Peripherals support serial number. ● Analog I/O: Analog I/O serial number. ● Digital I/O: Digital I/O serial number. ● 3-64 42iQ Instruction Manual Thermo Scientific...
Page 91: Predictive Diagnostics
Home Screen>Settings>Health Check>Predictive Diagnostics The Predictive Diagnostics screen contains the following information: Reaction Chamber ● Converter ● Sample Pump ● Capillary ● Flow Path ● Case Fan ● Sample Valve ● Zero Valve ● Span Valve ● Thermo Scientific 42iQ Instruction Manual 3-65...
Page 92: Maintenance
Change Part: User logs component fix. ● Maintenance History: Shows the log of all recorded component fixes. ● Service Tips: Provides video and procedural service tips. ● Advanced Maintenance: Resets all preventive maintenance items. ● 3-66 42iQ Instruction Manual Thermo Scientific...
Page 93: Preventive Maintenance
Reset: Once the component is serviced/replaced, the user presses the ● Reset button and the “Months Left” value resets to the “Interval in Months” value. Alert: Allows the user to opt out of receiving preventive ● maintenance alerts. Displays Enabled/Disabled for each component. Thermo Scientific 42iQ Instruction Manual 3-67...
Page 94 Fan Filter: Service interval for fan filter. ● System Components: Service interval for system components. ● Purafil: Service interval for purafil. ● Charcoal: Service interval for charcoal. ● Dri-Rite: Service interval for dri-rite. ● 3-68 42iQ Instruction Manual Thermo Scientific...
Page 95: Change Part
Fix: User chooses from new, rebuilt, cleaned, and unknown. ● Comment: User can write a brief comment, which will be saved to the ● preventive maintenance history table. Commit: User commits and saves the selected part fix. ● Thermo Scientific 42iQ Instruction Manual 3-69...
Page 96: Maintenance History
Fix: The type of maintenance. ● Date: Shows date/time when service was logged. ● Service Months: Amount of time in months since last service. ● Comments: Shows comments entered from time of change. ● 3-70 42iQ Instruction Manual Thermo Scientific...
Page 97: File Sharing And Support
Alert Assistant: With the iQ Alert Assistant enabled, the instrument ● will email Thermo Scientific Technical Support the health check report after each event. After each maintenance alert or predictive diagnostic alert, Customer Service will produce a quote for the components that require service.
Page 98: Iq360
Status and Renewal Request: Allows the user to access the iQ360 menu ● once the subscription has been enabled. Cancel and Return to the Home Screen: Exits screen and returns to the ● Home Screen. 3-72 42iQ Instruction Manual Thermo Scientific...
Page 99 Enter Subscription Access Code: Allows the user to enter the subscription ● passcode to enable an iQ360 subscription. Exit and Return to the Home Screen: Exits screen and returns to the ● Home Screen. Thermo Scientific 42iQ Instruction Manual 3-73...
Page 100 Subscription Expiration Date: Informs the user when the ● subscription will expire. iQ360 Test Connection: Allows the user to verify the network ● connection is working. iQ360 Subscription Renewal: Allows the user to request a subscription ● renewal via email. 3-74 42iQ Instruction Manual Thermo Scientific...
Page 101: Measurement Settings
Gas Units: Defines how the NO, NO , and NO concentration ● readings are expressed. Dilution Ratio: Serves as a multiplier when dilution gas is utilized. ● Advanced Measurement Settings: Advanced settings affecting NO, NO ● and NO readings. Thermo Scientific 42iQ Instruction Manual 3-75...
Page 102: Averaging Time
At the same time it will preserve the representative nature of the filtered data to the conditions being sampled. Note When Dynamic Filtering is selected, the user selected Averaging Time button is disabled. ▲ 3-76 42iQ Instruction Manual Thermo Scientific...
Page 103 High Range Averaging Time: Sets high averaging time when in dual or ● auto range mode and when dynamic filtering is disabled. Low Range Averaging Time: Sets high averaging time when in dual or ● auto range mode and when dynamic filtering is disabled. Thermo Scientific 42iQ Instruction Manual 3-77...
Page 104: Range Mode Selection
For example, suppose the low range is set to 20 ppb and the high range is set to 100 ppb, as shown below. Sample concentrations below 50 ppb are output based on low range selection and sample concentrations 3-78 42iQ Instruction Manual Thermo Scientific...
Page 105 This is especially necessary if the two ranges are not close to one another. For example, the low NO range is set to 0–50 ppb and the high NO range is set to 0–20000 ppb. Thermo Scientific 42iQ Instruction Manual 3-79...
Page 106: Range Settings
Home Screen>Settings>Measurement Settings>Range Settings (dual or auto range mode) The Range Settings screen contains the following information: NO Range Setting: Sets the NO concentration range for the analog ● outputs when in single range mode. 3-80 42iQ Instruction Manual Thermo Scientific...
Page 107 Settable standard ranges according to unit selection include: 5020000 ppb 0.0520 ppm 0.0000050.002 % μg/m 10030000 μg/m mg/m 0.130 mg/m .00010.030 g/m Settable extended ranges according to unit selection include: 200100000 ppb 0.2100 ppm 0.000020.01 % Thermo Scientific 42iQ Instruction Manual 3-81...
Page 108 Operation Settings μg/m 500150000 μg/m mg/m 0.5150 mg/m .00050.150 g/m 3-82 42iQ Instruction Manual Thermo Scientific...
Page 109: Gas Mode
Span: Used when calibrating the span coefficient. When pressed, sets ● the instrument to span mode. External Span: If optional perm oven is installed, allows the use of an ● external span source in addition to the internal permeation span. Thermo Scientific 42iQ Instruction Manual 3-83...
Page 110: Gas Units
The Gas Units screen contains the following information: ppb: parts per billion. ● ppm: parts per million. ● %: percent. ● μg/m3: micrograms per meter cubed. ● mg/m3: milligrams per meter cubed. ● g/m3: grams per meter cubed. ● 3-84 42iQ Instruction Manual Thermo Scientific...
Page 111: Advanced Measurement Settings
Auto/Manual Mode: User can choose to measure single gas or switching ● mode. Extended Ranges: Enables/disables extended ranges feature. ● Compensation: Allows the user to compensate for changes in ● temperature and pressure concentration. Pressure Calibration: Calibrates pressure. ● Thermo Scientific 42iQ Instruction Manual 3-85...
Page 112 Input Board Cal: User can manually adjust the input board value, ● start/stop automatic calibration, read voltage, frequency and zero offset frequency values, and reset default values. Units: Displays units for each item. ● 3-86 42iQ Instruction Manual Thermo Scientific...
Page 113 Current PMT: Displays the current PMT voltage value. ● Units: Displays units for each item. ● Thermo Scientific 42iQ Instruction Manual 3-87...
Page 114 1% of target concentration. End Calibration: When pressed, the auto calibration is interrupted ● and the value does not change. Default PMT Supply: When pressed, the default PMT supply value ● is saved. 3-88 42iQ Instruction Manual Thermo Scientific...
Page 115 The Auto/Manual Mode screen is used to display single gases or multiple gases (switching mode). Use the  and  buttons to select. Home Screen>Settings>Measurement Settings>Advanced Measurement Settings>Extended Ranges The Auto/Manual Mode screen contains the following information: NO/NO ● ● ● Thermo Scientific 42iQ Instruction Manual 3-89...
Page 116 Standard Temperature for Gas Units: Allows the user to enter a value ● between 0 and 30 °C to correct the g/m , mg/m , and g/m concentration calculations. 3-90 42iQ Instruction Manual Thermo Scientific...
Page 117 Under the column labeled reading, the user enters the pressure in mmHg. Under the column labeled Calibration, the user presses the Start button to calibrate the low point of the sensor. Reset all values: Resets values to default. ● Thermo Scientific 42iQ Instruction Manual 3-91...
Page 118: Communications
ID number if two or more of instruments of the same model are connected to one computer. Valid instrument ID numbers are from 0 to 127. The 42iQD has a default instrument ID of 1. 3-92 42iQ Instruction Manual Thermo Scientific...
Page 119 Note Refer to the “Bayern Hessen Protocol” section in the Communications Manual for a detailed description. ▲ Ethernet Protocol Selection: Allows the user to enable Streaming, ● Modbus, or Bayern Hessen to utilize the mobile app and/or those communication protocols. Thermo Scientific 42iQ Instruction Manual 3-93...
Page 120: Wired Tcp/Dhcp
The Wired TCP/DHCP screen contains the following information: DHCP: Toggles DHCP enabled/disabled. ● Dynamic IP Address: Dynamic IP address of the instrument. ● Dynamic Netmask: Dynamic Netmask of instrument. ● Dynamic Gateway: Dynamic Gateway of instrument. ● 3-94 42iQ Instruction Manual Thermo Scientific...
Page 121 ● DHCP is disabled. DNS Server Address: DNS IP address of instrument. This is settable ● when DHCP is disabled. Wired MAC Address: Instrument MAC address. ● Host Name: Host name of instrument. ● Thermo Scientific 42iQ Instruction Manual 3-95...
Page 122 Bits: User selectable between 7 and 8. ● Parity: User selectable between None, Even, and Odd. ● Stop Bits: User selectable between 1 and 2. ● RS 232/485: User selectable between RS-232 and RS-485. ● 3-96 42iQ Instruction Manual Thermo Scientific...
Page 123: Analog I/O
Analog Out Calibration: Allows the user to calibrate the analog out ● voltage and current to account for varying loads attached to the terminals. Thermo Scientific 42iQ Instruction Manual 3-97...
Page 124: Digital I/O
Digital Out (Relays): Allows the user to view relay outputs. ● Digital Out (Solenoids): Allows the user to view solenoid outputs. ● Advanced Digital I/O: Allows user to test the digital out relays and ● solenoids. 3-98 42iQ Instruction Manual Thermo Scientific...
Page 125: Email Server (Smtp)
From Email Address: The email address that goes in the From field in ● emails. SMTP Server Port: Server port of user’s email server. ● Email Password: Password for SMTP server. ● Email UserName: User name that is authorized to send email through ● SMTP server. Thermo Scientific 42iQ Instruction Manual 3-99...
Page 126: Bayern Hessen Settings
(001 to 999) that will preface the measured value in the response to the ‘DA’ command. Down: ● 1–8: Displays the register number and the measured values to be logged ● in the respective register location, in response to a valid query (DA) command. 3-100 42iQ Instruction Manual Thermo Scientific...
Page 127: Ethernet Protocol Selection
Press Commit changes button to save selections. Yellow buttons indicate that the selection is enabled. More than one can be chosen. Home Screen>Settings>Communications>Ethernet Protocol Selection The Ethernet Protocol Selection screen contains the following information: Streaming ● Modbus ● Bayern Hessen ● Thermo Scientific 42iQ Instruction Manual 3-101...
Page 128: Instrument Settings
Ozonator Safety Enabled/Disabled: Enables/disables ozonator safety. ● PMT Supply Enabled/Disabled: Enables/disables PMT supply. ● Ozonator Supply Enabled/Disabled: Enables/disables ozonator supply. ● Display Setup: Sets touchscreen display settings. ● Clock: Sets date and time. ● 3-102 42iQ Instruction Manual Thermo Scientific...
Page 129 Operation Settings Language: Sets language. ● Pump Power: Manually enables/disables the pump. ● Reboot Instrument: Reboots the instrument. ● Thermo Scientific 42iQ Instruction Manual 3-103...
Page 130: Instrument Setpoints
Variable: Lists the items that have settable alarm limits. ● Setpoint: User sets high alarm for item. ● Units: Units for each item (not settable). ● Down: ● Converter Temp: NO converter temperature. ● 3-104 42iQ Instruction Manual Thermo Scientific...
Page 131: Alarm Setpoints
High Alarm: User sets high alarm for item. ● Units: Units for each item (not settable). ● Down: ● NO Concentration: NO concentration alarm. ● Concentration: NO concentration alarm. ● Concentration: NO concentration alarm. ● Thermo Scientific 42iQ Instruction Manual 3-105...
Page 132 Chamber Pressure: Bench pressure alarm. ● Flow: Flow pressure alarm. ● Chamber Temperature: Bench temperature alarm. ● Cooler Temperature: Cooler temperature alarm. ● Converter Temperature: NO converter temperature alarm. ● Perm Oven Temperature: Perm oven temperature alarm. ● 3-106 42iQ Instruction Manual Thermo Scientific...
Page 133: Display Setup
Power Save: Minutes before screen times out. Toggles enable/disable. ● Power Save Setting: Option whereby the user can display a black screen ● after a set amount of inactivity. Brightness: Sets the brightness of the display. ● Thermo Scientific 42iQ Instruction Manual 3-107...
Page 134: Clock
Time: User sets time. ● Time Zone: User chooses time zone. ● Time Server: User can enable/disable the time server to get periodic ● clock updates. Commit: When pressed, clock settings are saved. ● 3-108 42iQ Instruction Manual Thermo Scientific...
Page 135 Operation Settings Date The Date screen allows the user to choose date. Use the  and  buttons to move left and right to select month and year. Home Screen>Settings>Instrument Settings>Clock>Date Thermo Scientific 42iQ Instruction Manual 3-109...
Page 136 Use the  and  buttons to select. Home Screen>Settings>Instrument Settings>Clock>Date Format The Date Format screen contains the following information: U.S. Format mm/dd/yyyy ● European Format dd/mm/yyyy ● ISO 8601 yyyy-mm-dd ● 3-110 42iQ Instruction Manual Thermo Scientific...
Page 137 The Time screen allows the user to choose from the following formats: mm/dd/yyyy or dd/mm/yyyy. Use the  and  buttons to select. Home Screen>Settings>Instrument Settings>Clock>Time The Time screen contains the following information: Hours ● Minutes ● Seconds ● Thermo Scientific 42iQ Instruction Manual 3-111...
Page 138: Time Zone
● Mountain Daylight Savings(UTC-6) ● Central Time Zone(UTC-6) ● Central Daylight Savings((UTC-5) ● Eastern Time Zone(UTC-5) ● Eastern Daylight Savings(UTC-4) ● Atlantic Time Zone(UTC-4) ● Mid-Atlantic(UTC-3) ● South Georgia(UTC-2) ● Cape Verde Time(UTC-1) ● 3-112 42iQ Instruction Manual Thermo Scientific...
Page 139 ● Gulf Standard Time(UTC+4) ● Yekaterinburg Time(UTC+5 ● Omsk Time(UTC+6) ● Indochina Time(UTC+7) ● ASEAN Common Time(UTC+8) ● Japan Standard Time(UTC+9) ● Chamorro Time Zone(UTC+10) ● Sredmnekolymsk Time(UTC+11) ● New Zealand Standard Time(UTC+12) ● Thermo Scientific 42iQ Instruction Manual 3-113...
Page 140 Time Server: Enables/Disables periodic clock updates from an NTP ● (Network Time Protocol) source. Set Time Server: User can choose specific time server. ● Set Default: When pressed, default time server will be used. ● 3-114 42iQ Instruction Manual Thermo Scientific...
Page 141 Operation Settings Language The Language screen allows the user to choose from the following languages. Home Screen>Settings>Instrument Settings>Language The Language screen contains the following information: English ● Chinese ● Spanish ● Thermo Scientific 42iQ Instruction Manual 3-115...
Page 142: Configuration
Communications Board: Enables RS-232 or RS-485 communication ● board. Predictive Diagnostics: Enables predictive diagnostics. ● Analog I/O: Enables analog I/O option. ● Digital I/O: Enables digital I/O option. ● Instrument Warmup: Enables instrument warm up option. ● 3-116 42iQ Instruction Manual Thermo Scientific...
Page 143: Security Access Levels
Password not needed to change settings to view only access. Change Security Access to Full Access: User can switch to full access ● mode. Password is needed to change settings to full access. Thermo Scientific 42iQ Instruction Manual 3-117...
Page 144 Change Full Access Security Password: Full access password can have a ● blank value or user selected password. Change Instrument Password: User can change instrument password. ● Reset Instrument Password: User can reset the instrument password. ● 3-118 42iQ Instruction Manual Thermo Scientific...
Page 145: Change Security To View Only Access
Cancel: Exit screen. ● Note To change security access from view only access to full access, a keypad will be displayed where the user can enter full access password. ▲ Thermo Scientific 42iQ Instruction Manual 3-119...
Page 146: Change Full Access Security Password
The Change Full Access Security Password screen allows the user to set a new password for allowing full access. Security Password Home Screen>Settings>Security Access Levels>Change Full Access Security Password Home Screen>Settings>Security Access Levels>Change Full Access > Security Password Continue 3-120 42iQ Instruction Manual Thermo Scientific...
Page 147 Commit New Security Access Password Change: Commits new security ● password. Cancel and Return to the Home Screen: Exits screen and returns to the ● Home Screen without changing password. Thermo Scientific 42iQ Instruction Manual 3-121...
Page 148: Change Instrument Password
Operation Settings Change Instrument The Change Instrument Password screen allows the user to change the instrument password. Password Home Screen>Settings>Security Access Levels>Change Instrument Password Home Screen>Settings>Security Access Levels>Change Instrument Password>Continue 3-122 42iQ Instruction Manual Thermo Scientific...
Page 149 ● password for spelling confirmation. Commit New Instrument Password Change: Commits new instrument ● password. Cancel and Return to the Home Screen: Exits screen and returns to the ● Home Screen without changing password. Thermo Scientific 42iQ Instruction Manual 3-123...
Page 150: Reset Instrument Password
The Reset Instrument Password screen contains the following information: Reset: Allows the user to reset the instrument password. ● Cancel and Return to the Home Screen: Exits screen and returns to the ● Home Screen without changing password. 3-124 42iQ Instruction Manual Thermo Scientific...
Page 151: Usb Drive
Firmware Update Via USB Drive: If USB is mounted, user can update ● instrument firmware. Download Data To USB Drive: User can download/upload ● information. Change USB Password: User can change the USB password. ● Reset USB Password: User can reset the USB password. ● Thermo Scientific 42iQ Instruction Manual 3-125...
Page 152: Firmware Update Via Usb Drive
The Firmware Update Via USB Drive screen contains the following information: Update Firmware: User chooses firmware file from USB and updates ● instrument firmware. Instrument reboots when update is finished. Exit: User exits without updating firmware. ● 3-126 42iQ Instruction Manual Thermo Scientific...
Page 153 If a USB password has been previously set, you will be prompted to enter the USB password to continue. Press Enter to continue. 3. Press the OK button on the pop-up box to go to the Firmware Update Via USB Drive screen. Thermo Scientific 42iQ Instruction Manual 3-127...
Page 154 6. The on-screen instructions will prompt the user to select the firmware update file and display what it is doing at each step and some steps may take several minutes to complete. 7. Press Yes to confirm and proceed with the firmware upgrade. 3-128 42iQ Instruction Manual Thermo Scientific...
Page 155 ▲ 8. The instrument should reboot automatically and should have the new firmware installed. To check that the firmware was installed, go to the Settings>Health Check screen and view the Firmware Version button. Thermo Scientific 42iQ Instruction Manual 3-129...
Page 156: Download Data To Usb Drive
USB to the instrument. Restore: Allows the user to upload the configuration files from the USB ● to the instrument. Download All Data: Downloads all reports, logs, histories, and backup ● information. 3-130 42iQ Instruction Manual Thermo Scientific...
Page 157 If a USB password has been previously set, you will be prompted to enter the USB password to continue. Press Enter to continue. 2. To continue, select the OK button. 3. The USB Drive will display. Select Download Data To USB Drive. Thermo Scientific 42iQ Instruction Manual 3-131...
Page 158 “Success!” message and display the file name as it is stored on the USB flash drive. (The file name format is the instrument serial number, name of download, followed by a date/time stamp.) Remove the USB flash drive and select the OK button to continue. 3-132 42iQ Instruction Manual Thermo Scientific...
Page 159: Change Usb Password
Settings Change USB Password The Change USB Password screen allows the user to set a new password for accessing USB. Home Screen>Settings>USB Drive>Change USB Password Home Screen>Settings>Security Access Levels>Change Standard Access > Password Continue Thermo Scientific 42iQ Instruction Manual 3-133...
Page 160 ● password for spelling confirmation. Commit New USB Password Change: Commits new USB password. ● Cancel and Return to the Home Screen: Exits screen and returns to the ● Home Screen without changing password. 3-134 42iQ Instruction Manual Thermo Scientific...
Page 161: Reset Usb Password
The Reset USB Password screen contains the following information: Reset: Allows the user to reset the USB password. ● Cancel and Return to the Home Screen: Exits screen and returns to the ● Home Screen without changing password. Thermo Scientific 42iQ Instruction Manual 3-135...
Page 162: User Contact Information
● Business Address ● Business Shipping Address ● To: User Email Address ● CC: User Email Address 110 ● User Phone Number ● Alternate User Phone Number ● Shelter / Lab Phone Number ● 3-136 42iQ Instruction Manual Thermo Scientific...
Page 163: Update Bootloader
If button is greyed out, no update is needed. Home Screen>Settings>Update Bootloader The Update Bootloader screen contains the following information: Reboot and Update: Update bootloader and reboot instrument. ● Exit: Exits screen. ● Thermo Scientific 42iQ Instruction Manual 3-137...
Page 165: Chapter 4 Calibration
The following describes procedures for performing a multipoint calibration of the 42iQ. The information described here is considered adequate to perform the calibration. However, if greater detail is desired, the user is referred to the Code of Federal Regulations, Title 40, Part 50, Appendix F.
Page 166: Equipment Required
● Gas phase titrator ● Zero Gas Generator A zero air source, such as a Thermo Scientific 111iQ Zero Air Supply, free of contaminants such as NO, NO , and O is required for dilution, calibration, and gas phase titration.
Page 167: Scrubbing
Hydrocarbons Molecular Sieve (4A), Activated Charcoal and NO Activated Charcoal Gas Phase Titrator A gas phase titrator (GPT), such as is included in the Thermo Scientific 146iQ Multi-gas Calibrator, is used to generate NO concentrations from NO concentrations. Figure 4–1 shows the suggested placement of the component parts of a gas phase titration apparatus.
Page 168: Ozone Generator
The reaction chamber used for the reaction of ozone with excess NO should have sufficient volume so that the residence time meets the requirements specified in this chapter. Mixing Chamber The mixing chamber is used to provide thorough mixing of the reaction products and diluent air. 42iQ Instruction Manual Thermo Scientific...
Page 169: Output Manifold
Use the following procedure to calculate the NO concentration standard and NO impurity. Against a NIST-traceable NO Standard 1. Generate several NO concentrations by dilution of the NO working standard. 2. Use the nominal NO concentration, [NO] , to calculate the diluted concentrations. Thermo Scientific 42iQ Instruction Manual...
Page 170: Zero Air
[NO] Concentration of the undiluted NO standard, ppm NO flow rate, sccm generator air flow rate, sccm Volume of the reaction chamber, cc Analyzer demand plus 10 to 50% excess 42iQ Instruction Manual Thermo Scientific...
Page 171: Determining Gpt System Flow Conditions
3. Determine F 4. Select a convenient or available reaction chamber volume. Initially a trial volume may be selected in the range of 200 to 500 cc. 5. Compute F 2.75 6. Compute t Thermo Scientific 42iQ Instruction Manual...
Page 172: Pre-Calibration
F Pre-Calibration Perform the following pre-calibration procedure before calibrating the 42iQ. 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 sample to zero and from zero to span.
Page 173: Calibration
The instrument should give identical responses to the test gases whether they are introduced via the SAMPLE port or the ZERO IN or SPAN ports. If not, the plumbing and/or valves should be serviced. Thermo Scientific 42iQ Instruction Manual...
Page 174: Connect Gpt Apparatus To The Analyzer
The background signal is the combination of electrical offsets, to Zero PMT dark current, and trace substances undergoing chemiluminescence. For more detailed information, see “Calibrate NO and NOx Background” in the “Operation” chapter. 4-10 42iQ Instruction Manual Thermo Scientific...
Page 175: Background To Zero
“Dynamic Parameter Specifications for Gas Titrator” earlier in this chapter. The total GPT airflow must exceed the total demand of the analyzer. The 42iQ requires approximately 700 cc/min of sample flow, and a total GPT airflow of at least 1.5 liters/min is recommended.
Page 176: Calibrate The No X Channel To The No X Calibration Gas
The user sets the span concentration by pressing the Edit NO Span Concentration button. The Calculated NO Span Coefficient button will show what the span coefficient will be set to if the Calibrate button 4-12 42iQ Instruction Manual Thermo Scientific...
Page 177 5. Adjust the GPT system to generate a NO concentration near 90% of the URL of the instrument range selected. 6. Sample this NO concentration until the NO and NO responses have stabilized, then measure and record the NO concentration as [NO] ORIG Thermo Scientific 42iQ Instruction Manual 4-13...
Page 178 (leak or imbalance), or the converter needs replacement or servicing. The analog output will reflect the NO concentration generated by GPT, any NO impurity, and the NO zero offset. 4-14 42iQ Instruction Manual Thermo Scientific...
Page 179: Alternative Calibration Procedure Using No Permeation Tube
Code of Federal Regulations, Title Procedure Using NO 40, Part 50, Appendix F using a NO permeation tube may be used as an Permeation Tube alternative procedure for calibrating the instrument. Thermo Scientific 42iQ Instruction Manual 4-15...
Page 180: Commercial Precision Dilution Systems
A high concentration of NO in air is precisely diluted to the concentration range required. The Thermo Scientific 146iQ Multi-gas Calibrator is one such system for precision dilution. Permeation Tube System 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 181: Commercial Permeation Systems
In addition to the 146iQ and other commercial permeation systems, the 42iQ can also be configured with an optional permeation oven to supply calibration gas for the instrument. The operation of the internal permeation oven is described in Chapter 9, “Optional...
Page 182: Calibrate No Low
NO calibration gas of about 80% of the low NO full-scale range. 2. Allow the analyzer to sample the low NO calibration gas until the NO, , and NO readings stabilize. 4-18 42iQ Instruction Manual Thermo Scientific...
Page 183: Calibrate No X Low
The decrease must not exceed 90% of the low NO concentration determined in the “Calibrate NOx Low” procedure. 2. Press the Back button to return to the Calibration menu and choose Calibrate Low Range NO Span Coefficient. Thermo Scientific 42iQ Instruction Manual 4-19...
Page 184: Calibrate No High
The user sets the span concentration by pressing the Edit Span Concentration button. The Calculated High Range NO Span Coefficient button will show what the span coefficient will be set to if the Calibrate button is pressed. 4-20 42iQ Instruction Manual Thermo Scientific...
Page 185: Zero And Span Check
It is recommended to have a quality control plan where the frequency and the number of points required for calibration can be modified on the basis of calibration and zero and span check data collected over a period of time. Thermo Scientific 42iQ Instruction Manual 4-21...
Page 186: Manual Calibration
Use the following procedure to perform a zero and span check. 1. Connect the zero gas to the SAMPLE bulkhead in a standard instrument or to the ZERO IN bulkhead in a 42iQ equipped with the zero/span and sample solenoid valve option.
Page 187: Adjust No And No Backgrounds
The button labeled Adjust NO Background allows the user to change zero background. The second button called Adjusted NO Concentration shows what the new NO concentration would be based on the changed zero background. Press the Calibrate button to save the adjusted zero background value. Thermo Scientific 42iQ Instruction Manual 4-23...
Page 188: Adjust Span Coefficient
Press the Calibrate button to save the adjusted span coefficient value. The NO, NO , and NO coefficient screens operate the same way. Home Screen>Calibration>Advanced Calibration>Manual Calibration>Adjust Span Coefficients>Adjust NO Span Coefficient (single range mode) 4-24 42iQ Instruction Manual Thermo Scientific...
Page 189 Coefficient (dual or auto range mode) Reset Bkg to 0.000 The Reset Bkg to 0.000 and Span Coef to 1.000 screen allows the user to reset the calibration configuration values to factory defaults. and Span Coef to 1.000 Thermo Scientific 42iQ Instruction Manual 4-25...
Page 190: Zero/Span Schedule
The Span and Purge Duration buttons look and function the Duration Minutes same way as the zero duration button. The span duration button is used to set how long the span gas is sampled by the instrument. The purge 4-26 42iQ Instruction Manual Thermo Scientific...
Page 191: Schedule Averaging Time
Section 12 also provides information on “Calibration of Primary and Secondary Standards for Flow Measurements”. Specific information on certification of concentration standards is given in EPA Traceability Protocol for Assay and Certification of Gaseous Calibration Standards, available at www.epa.gov. Thermo Scientific 42iQ Instruction Manual 4-27...
Page 193: Chapter 5 Maintenance
2. Flush the filter with warm water and let dry (a clean, oil-free purge will help the drying process) or blow the filter clean with compressed air. 3. Re-install the filter and fan guard. Thermo Scientific 42iQ Instruction Manual 5-1...
Page 194: Thermoelectric Cooler Fins Inspection And Cleaning
3. Blow off the cooler fins using clean pressurized air. It may be more convenient to vacuum the cooler fins. In either case, make sure that particulate accumulation between the fins has been removed. 4. If necessary, use a small brush to remove residual particulate accumulation. 42iQ Instruction Manual Thermo Scientific...
Page 195: Capillaries Inspection And Replacement
Use the following procedure to inspect and replace the capillaries. This procedure can be used to check any or all of the capillaries. 1. Turn instrument OFF, unplug power cord and remove the cover (Figure 2–1). Figure 5–1. Inspecting and Replacing the Capillaries Thermo Scientific 42iQ Instruction Manual...
Page 196 7. Reconnect tubing to top of fittings, being careful to insert ferrule and o-ring properly, and tighten knurled nut finger tight. 8. Re-install the cover. 9. Connect the power cord and turn the instrument ON. 42iQ Instruction Manual Thermo Scientific...
Page 197: Pump Rebuilding
2. Mark the position of head parts relative to each other by drawing a line with a pencil. This helps avoid incorrect assembly later. 3. Undo the four screws in the head. 4. Lift the head plate and the intermediate plate off the housing. Thermo Scientific 42iQ Instruction Manual...
Page 198 12. Place the head plate on the intermediate plate, in the position indicated by the drawing line; gently tighten the four screws, evenly and diagonally (if a torque screwdriver is available: torque about 0.30 Nm). 13. Let the pump run. 42iQ Instruction Manual Thermo Scientific...
Page 199: Figure 5-3. Pump Rebuilding
Maintenance Pump Rebuilding Figure 5–3. Pump Rebuilding Thermo Scientific 42iQ Instruction Manual...
Page 200: Leak Test
18. Squeeze trigger until gauge reads to pull in 10 in Hg. 19. Observe vacuum gauge for stable reading for 5 minutes. If reading remains at 10 in Hg, no leak is present. Note Acceptable leak rate is .5 in Hg over 10 minutes. ▲ 42iQ Instruction Manual Thermo Scientific...
Page 201: Chapter 6 Troubleshooting
Guide experience an instrument problem. It also lists 42iQ specific troubleshooting information and alarm messages you may see on the graphics display and provides recommendations about how to resolve the alarm condition.
Page 202 Unplug power cord. Clean or replace capillary. Clogged sample air Replace filter element. filter Excessive noise Defective or low Unplug power cord. Remove PMT. sensitivity PMT Install known good PMT. Plug in power cord. Check performance. 42iQ Instruction Manual Thermo Scientific...
Page 203 325 ° C. Alarm – Perm Gas Temp Incorrect Perm oven Check that the alarm settings match set temperature or the set temperature. alarm setting Perm oven heater Replace thermistor. thermistor or gas thermistor error Thermo Scientific 42iQ Instruction Manual...
Page 204 Check that DMC cable is connected properly. Reseat if needed. Defective component Check for other alarms, as it is possible that another component of that DMC is drawing too much current. Defective DMC PCB Replace DMC board. 42iQ Instruction Manual Thermo Scientific...
Page 205 Verify the wires are properly connected to both sides of the heater. Defective heater Replace heater as needed. Defective DMC board Replace defective DMC board as needed. Alarm – Cooler Current too Defective cooler Replace cooler as needed. Thermo Scientific 42iQ Instruction Manual...
Page 206 Replace DMC board as needed. Alarm – Frequency too Low Input board is out of Recalibrate the Input board. calibration Alarm – Frequency too High Input board is out of Recalibrate the Input board. calibration 42iQ Instruction Manual Thermo Scientific...
Page 207: Chapter 7 Servicing
Chapter 7 Servicing This chapter describes the periodic servicing procedures that should be performed on the instrument to ensure proper operation and explains how to replace the 42iQ subassemblies. Safety Read the safety precautions before beginning any procedures in this chapter.
Page 208: Figure 7-1. Properly Grounded Antistatic Wrist Strap
When the instrument is unplugged, the chassis is not at earth ground. ▲ Figure 7–1. Properly Grounded Antistatic Wrist Strap Note Ground to unpainted case or outlet as shown. ▲ 42iQ Instruction Manual Thermo Scientific...
Page 209: Firmware Updates
For more information on installing new firmware, see “Installing New Firmware” in the iQ Series Communications manual. Replacement For a complete list of spare parts, visit the company website at: Parts List www.thermofisher.com/42iQ Refer to Figure 7–2 Figure 7–3 to identify the component location. Thermo Scientific 42iQ Instruction Manual...
Page 210: Figure 7-2. 42Iq Component Layout Top View
Servicing Replacement Parts List Figure 7–2. 42iQ Component Layout Top View Figure 7–3. 42iQ Component Layout Side View 42iQ Instruction Manual Thermo Scientific...
Page 211: Fuse Replacement
1. Turn instrument OFF and unplug the power cord. 2. Remove fuse drawer, located on the AC power connector. 3. If either fuse is blown, replace both fuses. 4. Insert fuse drawer and reconnect power cord. Figure 7–4. Replacing the Fuses Thermo Scientific 42iQ Instruction Manual...
Page 212: Filter Replacement
2. Starting with top right corner, pull out to remove fan cover. Figure 7–5. Start with Top Right Corner of Fan Cover 3. Replace filter and snap fan cover back in place. Figure 7–6. Removing the Fan Cover 42iQ Instruction Manual Thermo Scientific...
Page 213: Fan Replacement
3. Starting with top right corner, pull out to remove fan cover. 4. Unhook the four latches of the fan cover. 5. Unfasten the four 6-32 screws from the fan housing. 6. Replace fan and reassemble in reverse order. Thermo Scientific 42iQ Instruction Manual...
Page 214: Figure 7-8. Replacing The Fan
Servicing Fan Replacement Figure 7–8. Replacing the Fan 42iQ Instruction Manual Thermo Scientific...
Page 215: Measurement Side Removal And Replacing
Phillips drive, #2 1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Unplug the fan cable J18 (Figure 7–9). Figure 7–9. Unplugging the Fan Cable 3. Unplug DMC cable (Figure 7–10). Thermo Scientific 42iQ Instruction Manual...
Page 216: Figure 7-10. Unplugging The Dmc Cable
Figure 7–10. Unplugging the DMC Cable 4. Gripping from the top corners of the front panel and pull outwards. 5. Remove three 8-32 flat head screws (Figure 7–11). Figure 7–11. Unfasten Hardware Front for Measurement Side Removal 7-10 42iQ Instruction Manual Thermo Scientific...
Page 217: Figure 7-12. Unfasten Hardware Rear For Measurement Side Removal
6. Swing arm open. 7. Unfasten captive hardware. 8. Remove two 8-32 flat head screws. 9. Pull measurement side out. 10. Replace and reassemble in reverse order. Figure 7–12. Unfasten Hardware Rear for Measurement Side Removal Thermo Scientific 42iQ Instruction Manual 7-11...
Page 218: Lcd Module Replacement
2. Gripping from the top corners of the front panel and pull outwards. 3. Unfasten four nuts (Figure 7–13). Figure 7–13. Replacing the LCD Module 4. Remove cover. 5. Unplug LCD cables from backside of board. 6. Pull board off the standoffs. 7-12 42iQ Instruction Manual Thermo Scientific...
Page 219: Figure 7-14. Remove Electrical Cables From Lcd
Servicing LCD Module Replacement Figure 7–14. Remove Electrical Cables from LCD 7. Replace LCD module and reassemble in reverse order. Thermo Scientific 42iQ Instruction Manual 7-13...
Page 220: I/O Replacement
Use the following procedure to replace the I/O boards. 8. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 9. Swing arm open. Figure 7–15. I/O Replacement, Arm 10. Pull board upwards. Figure 7–16. I/O Replacement, Remove Board 7-14 42iQ Instruction Manual Thermo Scientific...
Page 221: Figure 7-17. I/O Replacement, Install
11. During install, make sure to align cutout circular to keyway. 12. Insert board downwards. Figure 7–17. I/O Replacement, Install 13. Close arm. Make sure expansion bracket aligns to the inside of the rectangular cutouts. Figure 7–18. I/O Replacement, Close Arm Alignment Thermo Scientific 42iQ Instruction Manual 7-15...
Page 222: Peripherals Support Board And System Controller Board Replacement
Controller Board (Figure 2–1). Replacement 2. Pull tab out (two per board). 3. Pull board out. Figure 7–19. Replacing the Peripherals Support or System Controller Board 4. Replace board and reassemble in reverse order. 7-16 42iQ Instruction Manual Thermo Scientific...
Page 223: Dmc Pressure And Flow Board
(Figure 2–1). 2. Unplug cables from the pressure and flow board. Figure 7–20. Flow Pressure Board, Disconnect DMC Cable 3. Disconnect plumbing. 4. Using 7/16 hex drive, unfasten four #6-32 socket cap head screws. Thermo Scientific 42iQ Instruction Manual 7-17...
Page 224: Figure 7-21. Flow Pressure Board, Screws
Servicing DMC Pressure and Flow Board Figure 7–21. Flow Pressure Board, Screws 5. Replace board and reassemble in reverse order. 7-18 42iQ Instruction Manual Thermo Scientific...
Page 225: Pump Replacement
3. Twist opposite direction to unlock tube clamps. Note Push in tube clamp to lock. ▲ 4. Disconnect tubing from pump. 5. Unfasten two captive hardware. 6. Slide pump left until keyway meets opening. Thermo Scientific 42iQ Instruction Manual 7-19...
Page 226: Figure 7-22. Remove Pump, Disconnect And Unfasten
Servicing Pump Replacement Figure 7–22. Remove Pump, Disconnect and Unfasten 7. Pull pump outwards. Note When installing pump, make sure the pump keyway opening goes over the keyway. ▲ 7-20 42iQ Instruction Manual Thermo Scientific...
Page 227: Figure 7-23. Pump Removal, Keyway
Servicing Pump Replacement Figure 7–23. Pump Removal, Keyway 8. Remove two screws. Thermo Scientific 42iQ Instruction Manual 7-21...
Page 228: Figure 7-24. Pump Replacing, Unfasten Screws
Servicing Pump Replacement Figure 7–24. Pump replacing, Unfasten Screws 9. Replace pump and reassemble in reverse order. 7-22 42iQ Instruction Manual Thermo Scientific...
Page 229: Capillary Cleaning And/Or Replacement
1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Disconnect the plumbing. 3. Using #2 Phillips drive, unfasten captive hardware. Figure 7–25. Remove Capillary, Disconnect and Unfasten 4. Slide capillary plate upwards clearing the partition panel keyway. Thermo Scientific 42iQ Instruction Manual 7-23...
Page 230: Figure 7-26. Capillary Plate, Keyway
Servicing Capillary Cleaning and/or Replacement Figure 7–26. Capillary Plate, Keyway 5. Using 7/64 hex drive, remove four #6-32 socket cap head screws. 6. Pull apart the capillary blocks. Figure 7–27. Capillary and O-Ring Replace 7-24 42iQ Instruction Manual Thermo Scientific...
Page 231: Capillary O-Ring Replacement
1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Unplug all electrical shown J9, J10, J24, J25, J26, and ground. 3. Unfasten captive hardware. 4. Slide power supply left, clearing three case floor plate keyways. Thermo Scientific 42iQ Instruction Manual 7-25...
Page 232: Figure 7-28. Removing Power Supply
Servicing Power Supply Replacement Figure 7–28. Removing Power Supply 5. Pull power supply up. 6. Replace power supply and reassemble in reverse order. Figure 7–29. Replacing Power Supply 7-26 42iQ Instruction Manual Thermo Scientific...
Page 233: Step Pol Board Replacement
1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Unplug Step POL power cable J4. 3. Unplug Step POL signal cable J2. 4. Unplug pump cable J7. 5. Unfasten captive hardware. Figure 7–30. Unplug and Unfasten Step POL Board Thermo Scientific 42iQ Instruction Manual 7-27...
Page 234: Figure 7-31. Clear Partition Keyway Step Pol Board
7–32). If replacing optional step board 2, make sure switch 1 is pointed towards ON and switch 2 is pointed away from ON (Figure 7–32). 8. Replace Step POL board and reassemble in reverse order. 7-28 42iQ Instruction Manual Thermo Scientific...
Page 235: Figure 7-32. Step Pol Board 1 Switch Settings
Servicing Step POL Board Replacement Figure 7–32. Step POL Board 1 Switch Settings Figure 7–33. Step POL Board 2 Switch Settings Thermo Scientific 42iQ Instruction Manual 7-29...
Page 236: Dmc Pmt Cooler And Reaction Chamber Replacement
Make sure the PMT has cooled down before touching. ▲ 2. Unhook plumbing by pulling loop downwards and unhook tubing. 3. Using a #2 Phillips drive, unfasten two 6-32 flat head screws. 4. Pull shroud outwards. 7-30 42iQ Instruction Manual Thermo Scientific...
Page 237: Figure 7-34. Remove Pmt Cooler Shroud
5. Unplug J3, J1, and J6 (fan). 6. Disconnect all plumbing depending on the options. Configuration plumbing connections will vary. 7. Using #2 Phillips drive, unfasten four captive hardware. 8. Pull PMT cooler upwards. Thermo Scientific 42iQ Instruction Manual 7-31...
Page 238: Pmt Cooler Board Replacement
2. Remove DMC Converter as described in “PMT Cooler Shroud Removal” in this chapter. 3. Unplug all electrical connections from the board. 4. Using a #2 Phillips drive, unfasten six #6-32 pan head screws. 5. Pull board outwards. 7-32 42iQ Instruction Manual Thermo Scientific...
Page 239: Figure 7-36. Remove Pmt Cooler Board
Servicing DMC PMT Cooler and Reaction Chamber Replacement Figure 7–36. Remove PMT Cooler Board Thermo Scientific 42iQ Instruction Manual 7-33...
Page 240: Reaction Chamber Cleaning And/Or Removal
Removal” in this chapter. 3. Unplug heater J8 from board. Figure 7–37. Photo Reaction Chamber Cleaning, Electrical 4. Disconnect plumbing as shown. 5. Using a 9/64-inch hex drive, unfasten three #8-32 socket cap head screws. 7-34 42iQ Instruction Manual Thermo Scientific...
Page 241: Figure 7-38. Photo Reaction Chamber Cleaning, Hardware
7. To reinstall reaction chamber, follow previous steps in reverse, making sure to back fill the cooler with dry air or nitrogen prior to installing reaction chamber. 8. Reinstall the measurement bench. Refer to Figure 7–37 Figure 7– Thermo Scientific 42iQ Instruction Manual 7-35...
Page 242: Figure 7-39. Photo Reaction Chamber Cleaning, Window
Servicing DMC PMT Cooler and Reaction Chamber Replacement Figure 7–39. Photo Reaction Chamber Cleaning, Window 7-36 42iQ Instruction Manual Thermo Scientific...
Page 243: Photomultiplier Tube (Pmt) Replacement
3. Using a flat head screwdriver, wedge out of top right corner starting point, labeled 1 (Figure 7–57). 4. Continue to wedge out the four midpoints of the plate to remove the snap on access panel, labeled 2 (Figure 7–58). Thermo Scientific 42iQ Instruction Manual 7-37...
Page 244: Figure 7-41. Removing The Access Panel, Starting Point
Servicing DMC PMT Cooler and Reaction Chamber Replacement Figure 7–41. Removing the Access Panel, Starting Point 5. Pull access cover out. Figure 7–42. Access Cover 7-38 42iQ Instruction Manual Thermo Scientific...
Page 245: Figure 7-43. Pmt Tube Replace-Screws
8. To install PMT, follow previous steps in reverse order making sure to backfill the cooler with dry air or nitrogen prior to replacing the PMT. 9. Perform a PMT calibration as described on page 3-86. Thermo Scientific 42iQ Instruction Manual 7-39...
Page 246: Dmc Converter Replacement
3. Disconnect all plumbing 8X. Note The amount of connections will vary depending on the different options installed. ▲ 4. Using a #2 Phillips drive, unfasten captive hardware 4X. Figure 7–44. Converter DMC Assembly Remove 7-40 42iQ Instruction Manual Thermo Scientific...
Page 247: Converter Assembly Board Replacement
4. Using a #2 Phillips drive, unfasten four 6-32 pan head screws. Figure 7–45. Converter Assembly Remove bd 5. Pull converter assembly board outwards. 6. Replace converter assembly board and assemble in reverse order. Thermo Scientific 42iQ Instruction Manual 7-41...
Page 248: Converter Cartridge Heater Replacement
8. To replace converter, follow previous steps in reverse. Note be sure to wrap the O converter tube snugly around the heater. 9. Reinstall in reverse order. 7-42 42iQ Instruction Manual Thermo Scientific...
Page 249: Figure 7-46. Converter Assembly Replace Heater
Servicing DMC Converter Replacement Figure 7–46. Converter Assembly Replace Heater Thermo Scientific 42iQ Instruction Manual 7-43...
Page 250: Dmc Ozonator
Phillips drive, #2 1. Turn the instrument OFF, unplug the power cord, and remove the cover (Figure 2–1). 2. Unplug converter DMC (J2) and flow pressure board (J4). Figure 7–47. HVPS, Electrical 3. Disconnect plumbing. 7-44 42iQ Instruction Manual Thermo Scientific...
Page 251: Figure 7-48. Hvps Remove
Figure 7–48. HVPS Remove Ozonator Use the following procedure to replace the ozonator. Replacement 1. Unplug ozonator (J1). 2. Disconnect plumbing 2X. 3. Ozonator—using a #2 Phillips drive, unfasten two #6-32 pan head screws. Thermo Scientific 42iQ Instruction Manual 7-45...
Page 252: Transformer Replacement
Servicing DMC Ozonator Figure 7–49. Replace Ozonator Transformer Use the following procedure to replace the transformer. Replacement 1. Ozonator transformer—using a #2 Phillips drive, unfasten four #6-32 pan head screws. 7-46 42iQ Instruction Manual Thermo Scientific...
Page 253: Ozonator And Transformer Board Replacement
Ozonator” in this chapter. 2. Unplug all electrical from HPVS board, ozonator (J1), flow switch (J5) converter DMC (J2) and flow pressure board (J4). 3. Using a #2 Phillips drive, unfasten four #6-32 pan head screws. Thermo Scientific 42iQ Instruction Manual 7-47...
Page 254: Flow Switch Replacement
Replacement Equipment Required: Phillips drive, #2 1. Remove Ozonator as described in “DMC Ozonator” in this chapter. 2. Unplug flow switch (J5) from board. 3. Pull flow switch off clip after unplugging from board. 7-48 42iQ Instruction Manual Thermo Scientific...
Page 255: Figure 7-52. Flow Switch Remove
Use the following procedure to replace the optional ammonia scrubber. Scrubber Equipment Required: Replacement Phillips drive, #2 1. Remove DMC Ozonator as described in “DMC Ozonator” in this chapter. 2. Disconnect plumbing 2X. 3. Pull Ammonia scrubber off clips 2X. Thermo Scientific 42iQ Instruction Manual 7-49...
Page 256: Figure 7-53. Remove Ammonia Scrubber
Servicing DMC Ozonator Figure 7–53. Remove Ammonia Scrubber 7-50 42iQ Instruction Manual Thermo Scientific...
Page 257: Optional Manifold Replacement
2. Unplug three electrical connections (J5, J6, and J8) from the Step POL board 1. Figure 7–54. Replacing the Manifold pt 1 3. Unfasten three nuts. Remove the nuts, front and back ferrules as shown from span, zero in, sample back panel (Figure 7–55). Thermo Scientific 42iQ Instruction Manual 7-51...
Page 258: Figure 7-55. Replacing The Manifold Pt 2
Figure 7–55. Replacing the Manifold pt 2 4. Disconnect tubing. 5. Using a 9/64 hex drive, unfasten four #8-32 socket cap head screws. Figure 7–56. Replacing the Manifold pt 3 6. Replace the manifold and assemble in reverse order. 7-52 42iQ Instruction Manual Thermo Scientific...
Page 259: Optional Solenoid Valves Removal
1. Turn the instrument OFF, unplug the power cord, and remove the cover (Figure 2–1). 2. Unplug mode valve (J5), lag valve (J6), and perm valve (J7) from step board 2 only. Figure 7–57. Mode-Lag-Perm Electrical Connection Thermo Scientific 42iQ Instruction Manual 7-53...
Page 260: Figure 7-58. Mode-Lag-Perm Hardware, Plumbing
4. Slide valve out. Equipment Damage Do not disconnect the plumbing from the valve end. Disconnect from the attaching end only. This will prevent damaging and leaks from the valve end. ▲ Figure 7–58. Mode-Lag-Perm Hardware, Plumbing 7-54 42iQ Instruction Manual Thermo Scientific...
Page 261: Permeation Oven Replacement
CAUTION Allow oven to cool down prior to servicing. ▲ 1. Turn the instrument OFF, unplug the power cord, and remove the cover (Figure 2–1). 2. Unplug DMC cables as shown. 3. Disconnect plumbing. Figure 7–59. Perm Oven pt 1 Thermo Scientific 42iQ Instruction Manual 7-55...
Page 262: Figure 7-60. Finger Push And Release Tubing
Note Insert firmly to the guard against an accidental tube release. ▲ d. After inserting end of tube, relax your grip on the tool. Returning force of spring releases the tube. 7-56 42iQ Instruction Manual Thermo Scientific...
Page 263 6. Disconnect plumbing from inline fitting. Note Do not disconnect from valve end. ▲ 7. Unfasten two captive hardware. Figure 7–61. Perm Oven Replacement pt 2 8. Replace DMC permeation oven and assembly in reverse order. Thermo Scientific 42iQ Instruction Manual 7-57...
Page 264: Permeation Oven Board Replacement
2. Unplug all electrical J1, J7, J8, J9 as shown. 3. Using #2 Phillips drive, unfasten four 6-32 pan head screws. Figure 7–62. Replacing the Permeation Oven Board 4. Replace permeation board and assemble in reverse order. 7-58 42iQ Instruction Manual Thermo Scientific...
Page 265: Chapter 8 System Description
Chapter 8 System Description The 42iQ deploys a set of modular subsystems that comprise the total instrument function. The core measurements for concentration are contained in Distributed Measurement and Control (DMC) modules. This chapter describes the function and location of the system components in the module framework, including firmware, electronics, and I/O function.
Page 266: Reaction Chamber Dmc
NO molecules. Ozonator Flow Switch The ozonator flow switch located at the ozonator inlet completes an electrical safety circuit when air flows through the sensor to the ozonator. If 42iQ Instruction Manual Thermo Scientific...
Page 267: Ozonator Permeation Dryer
Chapter 9, “Optional Equipment”. Common The common electronics contain the core computational and power routing hardware for the 42iQ, and is replicated throughout other iQ series Electronics products (Figure 8–1). It also contains front panel display, the USB ports, the Ethernet port, and the optional I/O interfaces (RS-485, analog, and digital).
Page 268: Figure 8-1. Common System Interconnect Diagram
System Description Common Electronics Figure 8–1. Common System Interconnect Diagram 42iQ Instruction Manual Thermo Scientific...
Page 269: Figure 8-2. 42Iq System Interconnect Diagram
System Description Common Electronics Figure 8–2. 42iQ System Interconnect Diagram Thermo Scientific 42iQ Instruction Manual...
Page 270: Power Supply
All electronics operate from a universal VDC supply, which is capable of auto-sensing the input voltage and working over all specified operating ranges. The 42iQ contains a 24 VDC channel for most electronics operation, including the pump and fan, and a 48 VDC channel dedicated specifically for optical bench heating.
Page 271: Peripherals Support System
Upstream pressure is ambient, while downstream pressure allows determination of flow. A single PCBA with microprocessor provides the active controls for the pressure measurements, performs flow determination, and generates registers that interact with the higher level system controls. Thermo Scientific 42iQ Instruction Manual...
Page 272: Flow/Pressure Dmc
SNMP registers, some of which is interfaced with the front panel Graphical User Interface (GUI). In addition to the operating registers, the 42iQ stores a historical data log in a MySQL database. The memory is provided on the same micro SD card where the operating software resides, for which there is capability to store up to a year of data at 1 minute intervals.
Page 273: Chapter 9 Optional Equipment
Chapter 9 Optional Equipment The 42iQ is available with the following options: Connecting Several components are available for connecting external devices. External Devices These connection options consist of three plug-in boards: Communication Board ● Analog I/O Board ● Digital I/O Board ●...
Page 274: Communication Board
RS-232 or RS-485 communication. Figure 9–2. RS-232/RS-485 Port Table 9–1. RS-232/RS-485 Port Terminal Assignment Terminal Number Signal Name No Connect RX/RS485_RX_P TX/RS485_TX_N No Connect No Connect RTS/RS485_TX_P CTS/RS485_RX_N No Connect 42iQ Instruction Manual Thermo Scientific...
Page 275: Figure 9-3. Rs-485 External Accessory Port
Table 9–2. RS-485 External Accessory Port Terminal Assignment Terminal Number Signal Name EXT_RS485_RX_N EXT_RS485_RX_P +5V (Fused @0.4A) +5V (Fused @0.4A) +5V (Fused @0.4A) EXT_RS485_TX_N EXT_RS485_TX_P +24V (Fused @0.4A) +24V (Fused @0.4A) +24V (Fused @0.4A) +24V (Fused @0.4A) +24V (Fused @0.4A) Thermo Scientific 42iQ Instruction Manual...
Page 276: Analog I/O Board
Figure 9–4. Analog Voltage Inputs Table 9–3. Analog Voltage Inputs Assignment Terminal Number Signal Name Analog In 1 Analog GND Analog In 2 Analog GND Analog In 3 Analog GND Analog In 4 Analog GND 42iQ Instruction Manual Thermo Scientific...
Page 277: Analog Voltage Outputs
Current Output is 1000 Ω. All Voltage Outputs and Current Outputs are continuously monitored separately for accuracy. The Analog Outputs may be used to control and report parameters pertinent to the analyzers’ measured functions. Figure 9–5. Analog Voltage and Current Thermo Scientific 42iQ Instruction Manual...
Page 278: Analog Output Calibration
Note When calibrating the current output when using the 0-20 mA scale, the low level will be set to 4 mA due to the inability to adjust the actual current output to below zero. ▲ Calibrate the output channel full scale. ● 42iQ Instruction Manual Thermo Scientific...
Page 279 2. Depending on the output type being used, select either Analog Out Zero Calibration (Voltage) or Analog Out 4.000 mA Calibration (Current). 3. A confirmation screen is presented. Select Continue to proceed with the calibration or Return to Previous Screen. Thermo Scientific 42iQ Instruction Manual...
Page 280 6. After making changes to the output levels, the commit button will turn green. To accept the changes, press the Commit button. To revert to the previous values, press the back button to return to the previous analog output calibration screen. 42iQ Instruction Manual Thermo Scientific...
Page 281 2. Depending on the output type being used, select either Analog Out Full Scale Calibration (Voltage) or Analog Out 20.000 mA Calibration (Current). 3. A confirmation screen is presented. Select Continue to proceed with the calibration or Return to Previous Screen. Thermo Scientific 42iQ Instruction Manual...
Page 282 6. After making changes to the output levels, the commit button will turn green. To accept the changes, press the Commit button. To revert to the previous values, press the back button to return to the previous analog output calibration screen. 9-10 42iQ Instruction Manual Thermo Scientific...
Page 283: Digital I/O Board
The active state can be user defined in firmware. Logic Low Threshold: 0.8 V ● Logic High Threshold: 2.0 V ● Absolute allowable input voltages: -0.5 to 5.5 V ● Figure 9–6. Digital Inputs Thermo Scientific 42iQ Instruction Manual 9-11...
Page 284: Table 9-5. Digital Inputs Terminal Assignment
Digital In 6 Digital In 7 Digital In 8 Digital In 9 Digital In 10 Digital In 11 Digital In 12 Digital In 13 Digital In 14 Digital In 15 Digital In 16 COMMON 9-12 42iQ Instruction Manual Thermo Scientific...
Page 285: Digital Relay Switches
Optional Equipment Connecting External Devices Digital Relay Switches Table 9–6 lists the digital relay switches. Maximum Voltage: 300 VDC ● Maximum Current: 500 mA ● Fuse: 800 mA ● Figure 9–7. Digital Relay Switches Thermo Scientific 42iQ Instruction Manual 9-13...
Page 286: Table 9-6. Digital Relay Switch Assignment
Relay 2B Relay 3A Relay 3B Relay 4A Relay 4B Relay 5A Relay 5B Relay 6A Relay 6B Relay 7A Relay 7B Relay 8A Relay 8B Relay 9A Relay 9B Relay 10A Relay 10B 9-14 42iQ Instruction Manual Thermo Scientific...
Page 287: Valve Driver Outputs
Actual Output Voltage: 2224 VDC ● Maximum Current: 300 mA ● Both positive and negative outputs are protected from over voltage and ● over current by 500 mA fuses. Figure 9–8. Valve Driver Outputs Thermo Scientific 42iQ Instruction Manual 9-15...
Page 288: Table 9-7. Valve Driver Outputs Assignment
Valve Drive 7+ Valve Drive 7- Valve Drive 8+ Valve Drive 8- Note Intended for 24 V valves. These outputs will also drive any DC load of 2224 VDC, up to 300 mA. ▲ 9-16 42iQ Instruction Manual Thermo Scientific...
Page 289: Internal Zero/Span And Sample Valves
It may be necessary to use an atmospheric dump bypass plumbing arrangement to accomplish this. For more information, refer to the “Installation and Setup” chapter and the “Operation” chapter. Figure 9–9. Flow Diagram, Zero/Span Option Thermo Scientific 42iQ Instruction Manual 9-17...
Page 290: Lag Volume
Lag Volume The 42iQ is available with the following Lag Volume option. Principle of The 42iQ is based on the principle that nitric oxide (NO) and ozone react to produce a characteristic luminescence with an intensity linearly Operation proportional to the NO concentration. Infrared light emission results when electronically excited NO molecules decay to lower energy states.
Page 291: Lag Volume Test
Optional Equipment Lag Volume The 42iQ stores the NO signal obtained during the first half of the solenoid cycle, determines the NO signal during the second half of the solenoid cycle, and then calculates and updates a NO, NO , and NO signal every 10 seconds.
Page 292: Ammonia Scrubber
Assurance Handbook for Air Pollution Measurement Systems (Volume II). Figure 9–11 shows how this option is integrated with the 42iQ components. During normal operation, the pump draws zero air through the permeation oven and out the instrument exhaust. When performing a single point span check, the sample valve is energized, closing the sample valve, and the Perm valve is energized, opening the perm valve.
Page 293: Internal Permeation Span Source
Optional Equipment Internal Permeation Span Source Figure 9–11. Internal Permeation Span Source Flow Diagram Thermo Scientific 42iQ Instruction Manual 9-21...
Page 294: Permeation Tube Installation
Figure 9–12. Installing Glass Tube pt 1 3. Unfasten nut. Loosen thumb screw 2X full counter clock rotation. 4. Loosening the thumb screw deflates the o-ring making it easier to pull the thermistor assembly out. 9-22 42iQ Instruction Manual Thermo Scientific...
Page 295 6. Push and gently twist tube dispersion glass upwards and seat into o- ring. Note Make sure PTFE tube and thermistor is inside the dispersion glass. Keep glass clean by using kimwipes or similar material to handle glass. ▲ Thermo Scientific 42iQ Instruction Manual 9-23...
Page 296: Figure 9-14. Installing Glass Tube Pt 3
Internal Permeation Span Source Figure 9–14. Installing Glass Tube pt 3 7. Insert thermistor assembly into oven tube. Make sure it bottoms out. 8. Tighten thumb screw to expand o-ring for complete seal. 9. Fasten nut. 9-24 42iQ Instruction Manual Thermo Scientific...
Page 297: Computation Of Concentrations
Permeation Tube: Output (ppm) Where: R = permeation rate in ng/min = flow rate of gas (scc/min) during span mode K = constant for the specific permeant = 24.45 / MW MW = molecular weight Thermo Scientific 42iQ Instruction Manual 9-25...
Page 298: Ptfe Particulate Filter
Optional Equipment PTFE Particulate Filter PTFE Particulate A 5-10 micron pore size, two-inch diameter PTFE element is available for the 42iQ. This filter should be installed just prior to the bulkhead. SAMPLE Filter When using a filter, all calibrations and span checks must be performed through the filter.
Page 299: Appendix A Safety, Warranty, And Weee
▲ qualified service personnel only. Equipment Damage Do not attempt to lift the analyzer by the cover or other ▲ external fittings. This adjustment should only be performed by an instrument ▲ service technician. Thermo Scientific 42iQ Instruction Manual...
Page 300: Warranty
Products for which Buyer has requested warranty services are not covered by the warranty hereunder, Buyer shall pay or reimburse Seller for all costs of investigating and responding to such request at Seller's then 42iQ Instruction Manual Thermo Scientific...
Page 301 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. Thermo Scientific 42iQ Instruction Manual...
Page 302: Weee Compliance
Description 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. 42iQ Instruction Manual Thermo Scientific...
Page 303: List Of Figures
Figure 1–1. 42iQ Front ..................1-2 Figure 1–2. 42iQ Flow Schematic ............... 1-4 Figure 1–3. 42iQ Flow Schematic with Zero Span ..........1-4 Figure 1–4. Bench Mount Assembly (dimensions in inches [mm]) ....1-7 Figure 1–5. Rack Mount Assembly (dimensions in inches [mm]) ...... 1-8 ...
Page 304 Figure 7–49. Replace Ozonator ................. 7-46 Figure 7–50. Replace Transformer ..............7-47 Figure 7–51. HPVS Remove Bd ................. 7-48 Figure 7–52. Flow Switch Remove ..............7-49 Figure 7–53. Remove Ammonia Scrubber ............7-50 42iQ Instruction Manual Thermo Scientific...
Page 305 Figure 9–15. Installing Glass Tube pt 4 ............9-25 List of Tables Table 1–1. 42iQ Specifications ................1-5 Table 1–2. 42iQ Optional Permeation Oven Specifications ....... 1-6 Table 4–1. Scrubbing Materials ................. 4-3 Table 6–1. 42iQ Troubleshooting Guide ............. 6-1 ...
Page 307: Gnu Lesser General Public License
Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish); that you receive source code or can get it if you want it; Thermo Scientific 42iQ Instruction Manual...
Page 308 We call this license the "Lesser" General Public License because it does Less to protect the user's freedom than the ordinary General Public License. It also provides other free software developers Less of an advantage over competing non-free programs. These disadvantages are the reason we use 42iQ Instruction Manual Thermo Scientific...
Page 309 Library or any derivative work under copyright law: that is to say, a work containing the Library or a portion of it, either verbatim or with modifications and/or translated straightforwardly into another language. (Hereinafter, translation is included without limitation in the term "modification".) Thermo Scientific 42iQ Instruction Manual...
Page 310 Therefore, Subsection 2d requires that any application-supplied function or table used by this function must be optional: if the application does not supply it, the square root function must still compute square roots.) 42iQ Instruction Manual Thermo Scientific...
Page 311 5. A program that contains no derivative of any portion of the Library, but is designed to work with the Library by being compiled or linked with it, is Thermo Scientific 42iQ Instruction Manual...
Page 312 Library, with the complete machine-readable "work that uses the Library", as object code and/or source code, so that the user can modify the Library and then relink to produce a modified executable containing the modified Library. (It is 42iQ Instruction Manual Thermo Scientific...
Page 313 Give prominent notice with the combined library of the fact that part of it is a work based on the Library, and explaining where to find the accompanying uncombined form of the same work. Thermo Scientific 42iQ Instruction Manual...
Page 314 42iQ Instruction Manual Thermo Scientific...
Page 315 SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR Thermo Scientific 42iQ Instruction Manual...
Page 316 You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the library, if necessary. Here is a sample; alter the names: C-10 42iQ Instruction Manual Thermo Scientific...
Page 317 (iii) accessors; and (iv) small macros, templates and inline functions of five lines or less in length. Furthermore, you are not required to apply this additional permission to a modified version of the Library. Thermo Scientific 42iQ Instruction Manual C-11...
Page 320 Beijing, China 100013 Fax: +44 1606 548711 Ph: +86 10 84193588 orders.aqi@thermofisher.com india@thermofisher.com sales.epm.uk@thermofisher.com info.eid.china@thermofisher.com Find out more at thermofisher.com/42iQ © 2017 Thermo Fisher Scientific Inc. All trademarks are the property of Thermo Fisher Scientific and its subsidiaries unless otherwise specified. EPM_117435-00...

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