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RS-232/RS-485 Port ..............9-2 RS-485 External Accessory Port ............ 9-3 Analog I/O Board ................9-4 Analog Voltage Inputs ..............9-4 Analog Voltage Outputs ..............9-5 Analog Output Calibration .............. 9-6 Thermo Scientific 42iQLS Instruction Manual...
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Quick Reference ....................B-1 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 42iQLS Instruction Manual Thermo Scientific...
This analyzer is a single chamber, single photomultiplier tube design that cycles between the NO and NO modes. The 42iQLS Analyzer has independent outputs for NO, NO , and NO that can be calibrated separately. If required, the instrument can be...
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. 42iQLS Front 42iQLS Instruction Manual Thermo Scientific...
Introduction Principle of Operation Principle of The 42iQLS operates on the principle that nitric oxide (NO) and ozone ) react to produce a characteristic luminescence with an intensity Operation linearly proportional to the NO concentration. Infrared light emission results when NO molecules decay to lower energy states.
▲ Unpacking and The 42iQLS is shipped complete in one container. If there is obvious damage to the shipping container when you receive the instrument, notify Inspection the carrier immediately and hold for inspection. The carrier is responsible for any damage incurred during shipment.
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. 42iQLS Instruction Manual Thermo Scientific...
● Bench Mount Positioned on bench, includes installing feet. See Figure 2–2. Equipment required: Slot drive, 5/16-inch 4. Fasten feet in position 1 or 2 to fit to the desired depth. Figure 2–2. Installing Feet Thermo Scientific 42iQLS Instruction Manual...
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. 42iQLS Instruction Manual Thermo Scientific...
“Connecting External Devices” on page Communications > “Analog I/O” on page 3-107 “Digital I/O” on page 3-108. 5. Plug the instrument into an outlet of the appropriate voltage and frequency. 42iQLS Instruction Manual Thermo Scientific...
Installation and Setup Setup Procedure Icon Here The 42iQLS is supplied with a three-wire grounding cord. Under no circumstances should this grounding system be defeated. ▲ Figure 2–5. 42iQLS Rear Panel Figure 2–6. Atmospheric Dump Bypass Plumbing Thermo Scientific 42iQLS Instruction Manual...
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 touch Screen Display 42iQLS Instruction Manual Thermo Scientific...
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 with O option) Title Bar User Interface Status Bar Thermo Scientific 42iQLS Instruction Manual 3-1...
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Operation Instrument Display Home Screen (dual or auto range mode) Title Bar User Interface Status Bar 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual...
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. 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual...
Sensor option is turned on ● (in the Settings>Configuration screen), this button will appear. It allows an O calibration to be performed. Advanced Calibration: Calibrates the instrument using manual ● zero/span calibration and provides calibration history. Thermo Scientific 42iQLS Instruction Manual...
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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 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 3-11...
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Background: Read only. Displays what the current 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 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 3-13...
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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 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 3-15...
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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 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual 3-17...
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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 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual 3-19...
Span Coefficient: Read only. After the “Edit O Span ● Concentration” value is entered, the new calculated O span coefficient is displayed. Calibrate: When pressed, updates the O coefficient and the O ● concentration should match the span concentration. 3-20 42iQLS Instruction Manual Thermo Scientific...
● coefficient based on the current O concentration value. 2-Point O Calibration: The user manually performs a 2-point ● calibration of the O sensor. Calibration History: Lists all calibrations performed and calibration ● checks. Thermo Scientific 42iQLS Instruction Manual 3-21...
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. 3-22 42iQLS Instruction Manual Thermo Scientific...
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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. ● Thermo Scientific 42iQLS Instruction Manual 3-23...
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Background screens contain 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. 3-24 42iQLS Instruction Manual Thermo Scientific...
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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. ● Thermo Scientific 42iQLS Instruction Manual 3-25...
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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. 3-26 42iQLS Instruction Manual Thermo Scientific...
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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. Thermo Scientific 42iQLS Instruction Manual 3-27...
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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) 3-28 42iQLS Instruction Manual Thermo Scientific...
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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. Thermo Scientific 42iQLS Instruction Manual 3-29...
(single range mode) The Manual O Calibration screen contains the following information: Adjust O Span Coefficient: Allows the user to manually adjust the O ● span coefficient. Reset O Coefficient to 1.000: Resets coefficient. ● 3-30 42iQLS Instruction Manual Thermo Scientific...
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Span Coefficient: User manually adjusts span coefficient. ● Adjusted Concentration: Read only. Shows adjusted O concentration ● based on adjusted O span coefficient. Calibrate: Calibrates span coefficient by saving the newly adjusted O ● span coefficient. Thermo Scientific 42iQLS Instruction Manual 3-31...
Calibration Point 1: First cal point used in the 2 point O ● calibration. Defaults to 0.000%. 2-Point O Calibration Point 2: Second cal point used in the 2 point O ● calibration. Defaults to 20.900%. 3-32 42iQLS Instruction Manual Thermo Scientific...
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Concentration: Read only. After selecting the value on the ● Edit O Concentration button and after pressing the Calibrate O button, the Point 1 Concentration value is updated. Calibrate O : Calibrates point 1 coefficient. ● Thermo Scientific 42iQLS Instruction Manual 3-33...
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. 3-34 42iQLS Instruction Manual Thermo Scientific...
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. Thermo Scientific 42iQLS Instruction Manual 3-35...
▲ 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. 3-36 42iQLS Instruction Manual Thermo Scientific...
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. Thermo Scientific 42iQLS Instruction Manual 3-37...
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. 3-38 42iQLS Instruction Manual Thermo Scientific...
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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. ▲ Thermo Scientific 42iQLS Instruction Manual 3-39...
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. 3-40 42iQLS Instruction Manual Thermo Scientific...
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. Thermo Scientific 42iQLS Instruction Manual 3-41...
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 3-42 42iQLS Instruction Manual Thermo Scientific...
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. Thermo Scientific 42iQLS Instruction Manual 3-43...
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 3-44 42iQLS Instruction Manual Thermo Scientific...
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. Thermo Scientific 42iQLS Instruction Manual 3-45...
The iQ360 feature is a paid subscription enabling or disabling ● the instrument to send automated emails to technical support when an alarm or alert is triggered. Firmware Version: Shows the instrument’s firmware version. ● 3-46 42iQLS Instruction Manual Thermo Scientific...
The Status and Alarms screen contains the following information: Concentration: Displays NO/NO concentrations and alarms. ● Reaction Chamber: Displays reaction chamber alarms and faults. ● Ozonator: Displays ozonator alarms and faults. ● Converter: Displays NO converter alarms and faults. ● Thermo Scientific 42iQLS Instruction Manual 3-47...
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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. ● 3-48 42iQLS Instruction Manual Thermo Scientific...
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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. ● concentration. ● Thermo Scientific 42iQLS Instruction Manual 3-49...
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(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. ▲ 3-50 42iQLS Instruction Manual Thermo Scientific...
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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. Thermo Scientific 42iQLS Instruction Manual 3-51...
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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. 3-52 42iQLS Instruction Manual Thermo Scientific...
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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. Thermo Scientific 42iQLS Instruction Manual 3-53...
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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. 3-54 42iQLS Instruction Manual Thermo Scientific...
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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. Thermo Scientific 42iQLS Instruction Manual 3-55...
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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. 3-56 42iQLS Instruction Manual Thermo Scientific...
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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. Thermo Scientific 42iQLS Instruction Manual 3-57...
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Temperature Open: Displays OK/Fail for temperature open. ● Temperature Short: Displays OK/Fail for temperature short. ● Sensor Element Function: Displays OK/Fail for sensor element ● function. Outside Operational Spec.: Displays OK/Fail for outside operational ● specification. 3-58 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual 3-59...
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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. 3-60 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual 3-61...
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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. 3-62 42iQLS Instruction Manual Thermo Scientific...
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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. ● 3-64 42iQLS Instruction Manual Thermo Scientific...
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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. ● Thermo Scientific 42iQLS Instruction Manual 3-65...
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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. 3-66 42iQLS Instruction Manual Thermo Scientific...
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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. ● Thermo Scientific 42iQLS Instruction Manual 3-67...
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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. 3-68 42iQLS Instruction Manual Thermo Scientific...
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● Sensor Board: O sensor board serial number. ● Sensor: O sensor serial number. ● Flow and Pressure: Flow and pressure serial number. ● Peripherals Support: Peripherals support serial number. ● Thermo Scientific 42iQLS Instruction Manual 3-69...
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Operation Settings Analog I/O: Analog I/O serial number. ● Digital I/O: Digital I/O serial number. ● 3-70 42iQLS Instruction Manual Thermo Scientific...
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. ● 3-72 42iQLS Instruction Manual Thermo Scientific...
● Reset button and the “Months Left” value resets to the “Service Interval in Months” value. Alert: Allows the user to opt out of receiving preventive ● maintenance alerts. Displays Enabled/Disabled for each component. Thermo Scientific 42iQLS Instruction Manual 3-73...
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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. ● 3-74 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 3-75...
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. ● 3-76 42iQLS Instruction Manual Thermo Scientific...
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.
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. 3-78 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual 3-79...
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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. 3-80 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 3-81...
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. ▲ 3-82 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual 3-83...
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Operation Settings Averaging Time: Sets high averaging time when in dual or auto ● range mode and when dynamic filtering is disabled and the O sensor is enabled. 3-84 42iQLS Instruction Manual Thermo Scientific...
For example, suppose the low range is set to 200 ppb and the high range is set to 1000 ppb, as shown below. Sample concentrations below 200 ppb are output based on low range selection and sample Thermo Scientific 42iQLS Instruction Manual 3-85...
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This is especially necessary if the two ranges are not close to one another. For example, the low NO range is set to 0– 200 ppb and the high NO range is set to 0–20000 ppb. 3-86 42iQLS Instruction Manual Thermo Scientific...
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. Thermo Scientific 42iQLS Instruction Manual 3-87...
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Settable standard ranges according to unit selection include: 200100000 ppb 0.2100 ppm 0.000020.01 % μg/m 500150000 μg/m mg/m 0.5150 mg/m 0.0005.150 g/m Settable extended ranges according to unit selection include: 1000500000 ppb 1.0500 ppm 0.00010.05 % 3-88 42iQLS Instruction Manual Thermo Scientific...
Zero: Used when calibrating the background of the instrument. When ● pressed, sets the instrument to zero mode. Span: Used when calibrating the span coefficient. When pressed, sets ● the instrument to span mode. 3-90 42iQLS Instruction Manual Thermo Scientific...
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. ● Thermo Scientific 42iQLS Instruction Manual 3-91...
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, and O (if enabled). Pressure Calibration: Calibrates pressure. ● 3-92 42iQLS Instruction Manual Thermo Scientific...
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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. ● Thermo Scientific 42iQLS Instruction Manual 3-93...
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Current PMT: Displays the current PMT voltage value. ● Units: Displays units for each item. ● 3-94 42iQLS Instruction Manual Thermo Scientific...
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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. Thermo Scientific 42iQLS Instruction Manual 3-95...
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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>Auto/Manual Mode The Auto/Manual Mode screen contains the following information: NO/NO ● ● ● 3-96 42iQLS Instruction Manual Thermo Scientific...
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O readings. 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. Thermo Scientific 42iQLS Instruction Manual 3-97...
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20.8% to prevent divide-by-zero errors. C is the corrected concentration that may be used comp for analog outputs or datalogging. Home Screen>Settings>Measurement Settings>Advanced Measurement Settings>Compensation>O Correction (single range mode) 3-98 42iQLS Instruction Manual Thermo Scientific...
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NO concentration when in dual or auto range mode. Corrected Low Range NO Concentration: Read only. Displays the ● corrected low range NO concentration when in dual or auto range mode. Thermo Scientific 42iQLS Instruction Manual 3-99...
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Operation Settings Corrected Low Range NO Concentration: Read only. Displays the ● corrected low range NO concentration when in dual or auto range mode. 3-100 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual 3-101...
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 42iQLS has a default instrument ID of 1. Bayern Hessen Settings: User selects the registers (measured values) that ●...
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Operation Settings Note Refer to the “Bayern Hessen Protocol” section in the Communications Manual for a detailed description. ▲ Thermo Scientific 42iQLS Instruction Manual 3-103...
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. ● 3-104 42iQLS Instruction Manual Thermo Scientific...
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● 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 42iQLS Instruction Manual 3-105...
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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. ● 3-106 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 3-107...
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. 3-108 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 3-109...
Home Screen>Settings>Communications>Bayern Hessen Settings The Bayern Hessen Settings screen contains the following information: Register 1–8: Sets the measured value logged in the respective register ● location, in response to a valid query (DA) command. 3-110 42iQLS Instruction Manual Thermo Scientific...
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Use the and buttons to scroll through the registers. Select the variable to log by pressing the corresponding cell. The list is based on the instrument’s configuration. Home Screen>Settings>Communications>Bayern Hessen Settings>Register 1–8 Thermo Scientific 42iQLS Instruction Manual 3-111...
● Variable: Lists the items that have settable setpoints. ● Setpoint: User sets setpoint for item. ● Units: Units for each item (not settable). ● Down: ● Converter Temperature: NO converter temperature setpoint. ● 3-114 42iQLS Instruction Manual Thermo Scientific...
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. ● Concentration: O concentration alarm. ● Thermo Scientific 42iQLS Instruction Manual 3-115...
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Instrument Temperature: Instrument temperature alarm. ● 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. ● 3-116 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 3-117...
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. ● 3-118 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual 3-119...
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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 ● 3-120 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual 3-121...
● 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) ● 3-122 42iQLS Instruction Manual Thermo Scientific...
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● 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 42iQLS Instruction Manual 3-123...
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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. ● 3-124 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual 3-125...
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 42iQLS Instruction Manual 3-127...
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Operation Settings Change Full Access Security Password: Full access password can have a ● blank value or user selected password. 3-128 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 3-129...
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 3-130 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual 3-131...
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. ● 3-132 42iQLS Instruction Manual Thermo Scientific...
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. ● Thermo Scientific 42iQLS Instruction Manual 3-133...
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. 3-134 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual 3-135...
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“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. 3-136 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 3-137...
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● 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. 3-138 42iQLS Instruction Manual Thermo Scientific...
● Business Address ● Business Shipping Address ● To: User Email Address ● CC: User Email Address 110 ● User Phone Number ● Alternate User Phone Number ● Shelter / Lab Phone Number ● Thermo Scientific 42iQLS Instruction Manual 3-139...
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. ● 3-140 42iQLS Instruction Manual Thermo Scientific...
The following describes procedures for performing a multipoint calibration of the 42iQLS. 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.
● 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.
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.
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. 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual...
[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 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual...
F Pre-Calibration Perform the following pre-calibration procedure before calibrating the 42iQLS. 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.
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 42iQLS Instruction Manual...
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 42iQLS Instruction Manual Thermo Scientific...
“Dynamic Parameter Specifications for Gas Titrator” earlier in this chapter. The total GPT airflow must exceed the total demand of the analyzer. The 42iQLS requires approximately 100 cc/min of sample flow, and a total GPT airflow of at least 0.5 liters/min is recommended.
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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 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual 4-13...
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(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 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 4-15...
3. Introduce zero air to the SAMPLE bulkhead and allow the analyzer to sample zero air until the NO, NO , and NO responses stabilize. 4. After the responses have stabilized, from the Home Screen, choose Calibration>Calibrate Backgrounds>Calibrate NO Background. 4-16 42iQLS Instruction Manual Thermo Scientific...
Calibrate NO Use the following procedure to calibrate the NO channel to the NO calibration gas. 1. Press the Back button to return to the Calibration menu and choose Calibrate Low Range NO Span Coefficient. Thermo Scientific 42iQLS Instruction Manual 4-17...
1. Connect a source of high NO calibration gas of about 80% of the high NO full-scale range. Allow the analyzer to sample the high NO calibration gas until the NO, NO , and NO readings have stabilized. 4-18 42iQLS Instruction Manual Thermo Scientific...
NO concentration equivalent to about 80% of the URL of the high NO range. The decrease must not exceed 90% of the high NO concentration determined in the “Calibrate NOx High” procedure. Thermo Scientific 42iQLS Instruction Manual 4-19...
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 42iQLS equipped with the zero/span and sample solenoid valve option.
“High Range” or “Low Range” buttons are displayed to indicate the calibration of the high or low coefficient. The Adjust High Range Span Coefficient and Adjust Low Range Span Coefficient screens function the same way. Thermo Scientific 42iQLS Instruction Manual 4-21...
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. Home Screen>Calibration>Advanced Calibration>Manual Calibration>Adjust Backgrounds>Adjust NO Background 4-22 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 4-23...
Period The Period button defines the period or interval between zero/span schedule. Periods between 0 and 999 hours are acceptable. To turn the zero/span schedule off, set the period to 0. 4-24 42iQLS Instruction Manual Thermo Scientific...
1, a span duration will follow every zero duration. If this value is set to 3, there will be two zero checks between each span check. This value may be set from 1 to 99, with 1 as default. Thermo Scientific 42iQLS Instruction Manual 4-25...
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 42iQLS Instruction Manual 5-1...
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. 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual...
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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. 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual...
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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. 42iQLS Instruction Manual Thermo Scientific...
5. Squeeze trigger until gauge reads to pull in 10 in Hg. 6. 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. ▲ 42iQLS Instruction Manual Thermo Scientific...
Guide experience an instrument problem. It also lists 42iQLS specific troubleshooting information and alarm messages you may see on the graphics display and provides recommendations about how to resolve the alarm condition.
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Clogged capillaries 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 42iQLS Instruction Manual Thermo Scientific...
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If not, the heater may have failed. Check that converter temperature setpoint is approximately 625 ° C. Alarm – Pressure High pressure indication Check plumbing for leaks. Check the pump for a tear in the diaphragm. Thermo Scientific 42iQLS Instruction Manual...
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Defective DMC PCB Replace DMC board. Alarm – Module Cable connection Check that DMC cable is connected Temperature properly. Reseat if needed. Other alarm Make sure the instrument temperature is not too high or in alarm. 42iQLS Instruction Manual Thermo Scientific...
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Alarm – Cooler Current too Defective cooler Replace cooler as needed. Defective DMC board Replace DMC board as needed. Alarm – Cooler Current too Defective cooler Replace cooler as needed. High Defective DMC board Replace DMC board as needed. Thermo Scientific 42iQLS Instruction Manual...
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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 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS subassemblies. Safety Read the safety precautions before beginning any procedures in this chapter.
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. ▲ 42iQLS Instruction Manual Thermo Scientific...
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/42iQLS Refer to Figure 7–2 Figure 7–3 to identify the component location. Thermo Scientific 42iQLS Instruction Manual...
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 42iQLS Instruction Manual...
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 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual...
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 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual Thermo Scientific...
Use the following procedure to replace the I/O boards. 1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Swing arm open. Figure 7–15. I/O Replacement, Arm 3. Pull board upwards. Figure 7–16. I/O Replacement, Remove Board 7-14 42iQLS Instruction Manual Thermo Scientific...
4. During install, make sure to align cutout circular to keyway. 5. Insert board downwards. Figure 7–17. I/O Replacement, Install 6. 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 42iQLS Instruction Manual 7-15...
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 42iQLS Instruction Manual 7-19...
3. Unfasten captive hardware. 4. Slide power supply left clearing three case floor plate keyways. Figure 7–25. Removing Power Supply 5. Pull power supply up. 6. Replace power supply and reassemble in reverse order. Thermo Scientific 42iQLS Instruction Manual 7-23...
7–29). If replacing optional step board 2, make sure switch 1 is pointed towards ON and switch 2 is pointed away from ON (Figure 7–29). 8. Replace Step POL board and reassemble in reverse order. 7-26 42iQLS Instruction Manual Thermo Scientific...
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. 7-28 42iQLS Instruction Manual Thermo Scientific...
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. 7-30 42iQLS Instruction Manual Thermo Scientific...
Removal” in this chapter. 3. Unplug heater J8 from board. Figure 7–34. 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. 7-32 42iQLS Instruction Manual Thermo Scientific...
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 7–34 Figure 7– Thermo Scientific 42iQLS Instruction Manual 7-33...
3. Using a flat head screwdriver, wedge out of top right corner starting point, labeled 1 (Figure 7–54). 4. Continue to wedge out the four midpoints of the plate to remove the snap on access panel, labeled 2 (Figure 7–55). Thermo Scientific 42iQLS Instruction Manual 7-35...
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 3-93. Thermo Scientific 42iQLS Instruction Manual 7-37...
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 7–41. Converter DMC Assembly Remove 7-38 42iQLS Instruction Manual Thermo Scientific...
7. To replace converter, follow previous steps in reverse. Note be sure to wrap the O converter tube snugly around the heater. 8. Reinstall in reverse order. 7-40 42iQLS Instruction Manual Thermo Scientific...
Figure 7–45. 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 42iQLS Instruction Manual 7-43...
Servicing DMC Ozonator Figure 7–46. 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. 7-44 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 7-45...
Equipment Required: Phillips drive, #2 1. Remove DMC 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. 7-46 42iQLS Instruction Manual Thermo Scientific...
Use the following procedure to replace the ammonia scrubber. Replacement Equipment Required: 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 42iQLS Instruction Manual 7-47...
2. Unplug three electrical connections (J5, J6, and J8) from the Step POL board 1. Figure 7–51. 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 7–52). Thermo Scientific 42iQLS Instruction Manual 7-49...
Figure 7–52. Replacing the Manifold pt 2 4. Disconnect tubing. 5. Using a 9/64 hex drive, unfasten four #8-32 socket cap head screws. Figure 7–53. Replacing the Manifold pt 3 6. Replace the manifold and assemble in reverse order. 7-50 42iQLS Instruction Manual Thermo Scientific...
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 1 or 2. Figure 7–54. Mode-Lag-Perm Electrical Connection Thermo Scientific 42iQLS Instruction Manual 7-51...
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 7–55. Mode-Lag-Perm Hardware, Plumbing 7-52 42iQLS Instruction Manual Thermo Scientific...
Figure 7–64. Replacing the Oxygen Sensor 3. Disconnect tubing. 4. Using a 3mm hex drive, unfasten three m4 socket cap head screws. 5. Slide out oxygen sensor. 6. Replace oxygen sensor and reassemble in reverse order. 7-60 42iQLS Instruction Manual Thermo Scientific...
Chapter 8 System Description The 42iQLS 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.
If Switch airflow stops, the flow sensor breaks the electrical circuit to the ozonator and shuts it off to prevent the ozonator from overheating. 42iQLS Instruction Manual Thermo Scientific...
Converter housing, heater, replaceable cartridge, and a type K thermocouple sensor. Common The common electronics contain the core computational and power routing hardware for the 42iQLS, and is replicated throughout other iQ Electronics series 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).
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 42iQLS 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.
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 42iQLS Instruction Manual...
SNMP registers, some of which is interfaced with the front panel Graphical User Interface (GUI). In addition to the operating registers, the 42iQLS 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.
Chapter 9 Optional Equipment The 42iQLS 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 ●...
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 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual...
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. ● 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual...
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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. 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual...
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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 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 9-11...
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 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 9-13...
Actual Output Voltage: 2224 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 42iQLS Instruction Manual 9-15...
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 2224 VDC, up to 300 mA. ▲ 9-16 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual 9-17...
Selectable O concentrations can be used as the correction factor. Figure 9–10 shows how this option is integrated with the 42iQLS. Figure 9–10. 42iQLS Flow Schematic with Internal O Sensor 9-18 42iQLS Instruction Manual...
Converter PTFE Particulate A 5-10 micron pore size, two-inch diameter PTFE element is available for the 42iQLS. This filter should be installed just prior to the SAMPLE Filter bulkhead. When using a filter, all calibrations and span checks must be performed through the filter.
▲ 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 42iQLS Instruction Manual...
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 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual...
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. 42iQLS Instruction Manual Thermo Scientific...
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 42iQLS Instruction Manual...
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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 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual...
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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.) 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual...
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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 42iQLS Instruction Manual Thermo Scientific...
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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 42iQLS Instruction Manual...
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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 42iQLS Instruction Manual...
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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 42iQLS Instruction Manual Thermo Scientific...
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(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 42iQLS Instruction Manual C-11...