Page 1 48iQ Instruction Manual Carbon Monoxide Analyzer 117080-00 • 1Sep2019...
Page 3: Table Of Contents
Contents Chapter 1 Introduction ......................1-1 iQ Series Instrument Platform............. 1-1 48iQ Principle of Operation ............... 1-3 Specifications ..................1-5 Dimensions ..................1-7 Chapter 2 Installation and Setup ..................2-1 Unpacking and Inspection ..............2-1 ...
Page 4 Change Full Access Security Password ........3-115 USB Drive ................... 3-117 Firmware Update Via USB Drive ..........3-118 Download Data To USB Drive ..........3-119 Change USB Password .............. 3-122 48iQ Instruction Manual Thermo Scientific...
Page 5 Pump Rebuilding ................5-2 Leak Test .................... 5-5 Cleaning the Optics ................5-6 IR Source Replacement ............... 5-8 Chapter 6 Troubleshooting ....................6-1 Safety Precautions ................6-1 Troubleshooting Guide ............... 6-1 Thermo Scientific 48iQ Instruction Manual...
Page 6 Optical Bench DMC................8-2 Optical Bench Hardware ..............8-2 Filter Wheel Motor ................8-2 Filter Wheel Purge ................ 8-2 Detector Preamp ................8-3 Infrared Source ................. 8-3 48iQ Instruction Manual Thermo Scientific...
Page 7 Safety and Equipment Damage Alerts ..........A-1 Warranty ..................... A-2 WEEE Compliance ................A-4 WEEE Symbol ................. A-4 Appendix B Quick Reference ....................B-1 List of Figures ..................B-1 Thermo Scientific 48iQ Instruction Manual...
Page 8 Contents List of Tables..................B-3 Appendix C GNU Lesser General Public License ............C-1 GNU Lesser General Public License ........... C-1 viii 48iQ Instruction Manual Thermo Scientific...
Page 9: Chapter 1 Introduction
The 48iQ Gas Analyzer uses an exact calibration curve to accurately linearize the instrument output over any range up to a concentration of 10,000 ppm.
Page 10: Iq Series Instrument Platform
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. 48iQ Front 48iQ Instruction Manual Thermo Scientific...
Page 11: 48Iq Principle Of Operation
10,000 ppm. Gas sample is drawn into the 48iQ through the rear panel of the analyzer and through the optical detection system using an embedded intake pump,...
Page 12: Figure 1-2. 48Iq Flow Schematic
Introduction 48iQ Principle of Operation Figure 1–2. 48iQ Flow Schematic Figure 1–3. 48iQ Flow Schematic with Zero Span and Zero Air Scrubber 48iQ Instruction Manual Thermo Scientific...
Page 13: Specifications
Introduction Specifications Specifications Table 1–1 lists the specifications for the 48iQ. Table 1–1. 48iQ Specifications Range 0-10000 (ppm or mg/m Zero Noise 0.02 ppm RMS (30 second averaging time) Detection Limit 0.04 ppm (30 second averaging time) Zero Drift <0.1 ppm (24 hour) Span Drift ±0.5% reading (24 hour)
Page 14: Table 1-2. 48Iq Optional Internal Oxygen Sensor Specifications
Introduction Specifications Table 1–2. 48iQ Optional Internal Oxygen Sensor Specifications Technology Paramagnetic Range 0-100% O Accuracy (Intrinsic error) <±0.1% O Linearity <±0.1% O Repeatability <±0.1% O Zero Drift <±0.2% O per month (excludes up to 0.1% O in the first 24...
Page 15: Dimensions
Introduction Dimensions Dimensions Figure 1–4. Bench Mount Assembly (dimensions in inches [mm]) Thermo Scientific 48iQ 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]) 48iQ 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 48iQ Instruction Manual...
Page 19: Installation And Setup
▲ Unpacking and The 48iQ 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. 48iQ 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 48iQ Instruction Manual...
Page 22: Rack Mount
4. Use the same four 8-32 pan head screws to secure it. 5. Install the handles with the four 8-32 flat head screws that came with the handle kit on the backside. See Figure 2–4. 48iQ 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 48iQ Instruction Manual...
Page 24: Setup Procedure
10 psig to the purge fitting for use as the Filter Wheel Purge gas. The Filter Wheel Purge is described more fully on page 8-2. 48iQ Instruction Manual Thermo Scientific...
Page 25: Figure 2-5. 48Iq Rear Panel
3-59. 7. Plug the instrument into an outlet of the appropriate voltage and frequency. Icon Here The 48iQ is supplied with a three-wire grounding cord. Under no circumstances should this grounding system be defeated. ▲ Figure 2–5. 48iQ Rear Panel...
Page 26: Figure 2-6. Atmospheric Dump Bypass Plumbing
Installation and Setup Setup Procedure Figure 2–6. Atmospheric Dump Bypass Plumbing Figure 2–7. External Purge Plumbing 48iQ Instruction Manual Thermo Scientific...
Page 27: 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 2–8. Front Panel and Touchscreen Display Thermo Scientific 48iQ Instruction Manual...
Page 29: 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 with O option) Title Bar User Interface Status Bar Thermo Scientific 48iQ Instruction Manual 3-1...
Page 30 Operation Instrument Display Home Screen (dual or auto range mode with O option) Title Bar User Interface Status Bar 48iQ Instruction Manual Thermo Scientific...
Page 31 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 48iQ Instruction Manual...
Page 32 Operation Instrument Display Thermo Scientific Information button: Shows contact information. ● 48iQ Instruction Manual Thermo Scientific...
Page 33: Main Menus And Keypads
 Compensation (Optional)  Pressure Calibration  2‐Point O2 Calibration (Optional) Communications  Calibration History Instrument Settings  Display Setup  Alarm Setpoints  Language  Clock  Pump Power  Reboot Instrument Configuration Security Access Levels USB Drive  Firmware Update Via USB Drive  Download Data to USB Drive  Change USB Password User Contact Information Update Bootloader Thermo Scientific 48iQ Instruction Manual...
Page 34: 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. 48iQ Instruction Manual Thermo Scientific...
Page 35: 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 48iQ Instruction Manual...
Page 36 Operation Instrument Display 48iQ Instruction Manual Thermo Scientific...
Page 37: Calibration
Home Screen>Calibration (dual or auto range mode with O option) The Calibration menu contains the following information: Calibrate Background: Sets the CO reading to zero. ● Calibrate Span Coefficient: Sets the span coefficient when in single ● range mode. Thermo Scientific 48iQ Instruction Manual...
Page 38 (in the Settings>Configuration screen), this button will appear. It allows an O calibration to be performed. Advanced Calibration: Calibrates the instrument using a manual ● zero/span calibration, a multipoint calibration and provides calibration history. 3-10 48iQ Instruction Manual Thermo Scientific...
Page 39: Calibrate Background
Calculated Background: Read only. Displays what the current user-set ● background will become when the calibrate button is pressed. Calibrate: When pressed, updates the background, making the ● concentration go to zero. Thermo Scientific 48iQ Instruction Manual 3-11...
Page 40: Calibrate Span Coefficient
300-second averaging. Home Screen>Calibration>Calibrate Span Coefficient (single range mode) Home Screen>Calibration>Calibrate High Range Span Coefficient (dual or auto range mode) 3-12 48iQ Instruction Manual Thermo Scientific...
Page 41 Range Span Concentration” value is entered, the new calculated low range span coefficient is displayed when in dual or auto range mode. Calibrate: When pressed, updates the coefficient and the concentration ● should match the span concentration. Thermo Scientific 48iQ Instruction Manual 3-13...
Page 42: Zero/Span Schedule
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. 3-14 48iQ Instruction Manual Thermo Scientific...
Page 43 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 48iQ Instruction Manual 3-15...
Page 44: Calibrate O 2 Span Coefficient
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. 3-16 48iQ Instruction Manual Thermo Scientific...
Page 45: Advanced Calibration
Manual Calibration: The user manually adjusts the background or span ● coefficient. Multipoint Calibration: Up to three gas concentrations (cal-points) may ● be calibrated. Three cal-points will give the most accurate readings over the entire range. Thermo Scientific 48iQ Instruction Manual 3-17...
Page 46 ● 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. 3-18 48iQ Instruction Manual Thermo Scientific...
Page 47: Manual Calibration
The Manual Calibration menu contains the following information: Adjust Background: Allows the user to manually adjust the zero ● background. Adjust Span Coefficient: Allows the user to manually adjust the span ● coefficient when in single range mode. Thermo Scientific 48iQ Instruction Manual 3-19...
Page 48 Adjust Low Range Span Coefficient: Allows the user to manually adjust ● the low range span coefficient when in dual or auto range mode. Reset Background to 0.000 and Span Coefficient to 1.000: Resets all ● backgrounds and coefficients. 3-20 48iQ Instruction Manual Thermo Scientific...
Page 49 Adjust Background: User manually adjusts zero background. ● Adjusted Concentration: Read only. Shows adjusted concentration based ● on adjusted zero background. Calibrate: Calibrates zero background by saving the newly adjusted zero ● background value. Thermo Scientific 48iQ Instruction Manual 3-21...
Page 50 Adjust Span Coefficient: User manually adjusts span coefficient when in ● single range mode. Adjust High Range Span Coefficient: User manually adjusts high range ● span coefficient when in dual or auto range mode. 3-22 48iQ Instruction Manual Thermo Scientific...
Page 51 Adjusted Low Range Concentration: Read only. Shows adjusted low ● range concentration based on adjusted low range span coefficient when in dual or auto range mode. Calibrate: Calibrates span coefficient by saving the newly adjusted span ● coefficient. Thermo Scientific 48iQ Instruction Manual 3-23...
Page 52: Multipoint Calibration
Point 3: Third cal point used in the calibrated multipoint polynomial ● curve. First Coefficient: Read only. Value of the first coefficient in the ● polynomial curve. Second Coefficient: Read only. Value of the second coefficient in the ● polynomial curve. 3-24 48iQ Instruction Manual Thermo Scientific...
Page 53 Operation Calibration Third Coefficient: Read only. Value of the third coefficient in the ● polynomial curve. Reset Points to Default Values: Resets multipoint coefficients to default ● values. Thermo Scientific 48iQ Instruction Manual 3-25...
Page 54 Point 1 Coefficient: Read only. After selecting the value on the Edit ● Point 1 Span Concentration button and after pressing the Calibrate button, the Point 1 Coefficient value is updated. Calibrate: Calibrates point 1 coefficient. ● 3-26 48iQ Instruction Manual Thermo Scientific...
Page 55: Manual O 2 Calibration
(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. ● Thermo Scientific 48iQ Instruction Manual 3-27...
Page 56 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. 3-28 48iQ Instruction Manual Thermo Scientific...
Page 57: 2-Point O 2 Calibration
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%. Thermo Scientific 48iQ Instruction Manual 3-29...
Page 58 Point 1 Concentration value is updated. Calibrate O Point 1: Calibrates point 1 coefficient. ● Note Ensure that the sensor has been sampling the gas for at least 1 minute before pressing the Calibrate O Point 1 button. ▲ 3-30 48iQ Instruction Manual Thermo Scientific...
Page 59: 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 48iQ Instruction Manual 3-31...
Page 60: 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 and streamed. 3-32 48iQ Instruction Manual Thermo Scientific...
Page 61: 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 48iQ Instruction Manual 3-33...
Page 62: 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. 3-34 48iQ Instruction Manual Thermo Scientific...
Page 63: 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 48iQ Instruction Manual 3-35...
Page 64 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. ▲ 3-36 48iQ Instruction Manual Thermo Scientific...
Page 65: 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 48iQ Instruction Manual 3-37...
Page 66: 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. 3-38 48iQ Instruction Manual Thermo Scientific...
Page 67: 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 48iQ Instruction Manual 3-39...
Page 68: 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. 3-40 48iQ Instruction Manual Thermo Scientific...
Page 69: 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 48iQ Instruction Manual 3-41...
Page 70: 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. 3-42 48iQ Instruction Manual Thermo Scientific...
Page 71: Health Check
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. ● Thermo Scientific 48iQ Instruction Manual 3-43...
Page 72: Status And Alarms
Valve and Pump Resets: User can reset valve and pump power. ● Analog Input/Output: Displays analog input/output alarms and faults. ● Digital Input/Output: Displays digital input/output alarms and faults. ● Serial Numbers: Displays all the serial numbers for the instrument. ● 3-44 48iQ Instruction Manual Thermo Scientific...
Page 73: Concentration
Units: Displays units for each item. ● Down: ● CO: CO concentration. ● Bkg Check Offset: Displays concentration based on the last ● attempted background calibration. High alarm shows user defined limit for acceptable background check offset. Thermo Scientific 48iQ Instruction Manual 3-45...
Page 74 (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. ▲ 3-46 48iQ Instruction Manual Thermo Scientific...
Page 75: Ndir Bench
Reference Intensity: Displays the current reference intensity reading. ● Bench Pressure: Displays the current bench pressure reading. ● Flow: Displays the current sample flow reading. ● Instrument Temperature: Displays the current instrument ● temperature reading. Thermo Scientific 48iQ Instruction Manual 3-47...
Page 76 5.0V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 15V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 24V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 3-48 48iQ Instruction Manual Thermo Scientific...
Page 77 Operation Settings -15V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. Bias Voltage: Displays current voltage readings. Alarm limits are ● not changeable. Thermo Scientific 48iQ Instruction Manual 3-49...
Page 78 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. 3-50 48iQ Instruction Manual Thermo Scientific...
Page 79 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 48iQ Instruction Manual 3-51...
Page 80: Flow And Pressure
● can adjust low and high alarm limits. Pump Pressure: Displays the current pump pressure reading. ● Instrument Temperature: Displays the current instrument ● temperature reading. User can adjust low and high alarm limits. 3-52 48iQ Instruction Manual Thermo Scientific...
Page 81 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 48iQ Instruction Manual 3-53...
Page 82: Peripherals Support
Zero Valve: Displays whether or not the zero valve is activated. ● Span Valve: Displays whether or not the span valve is activated. ● Instrument Error: Displays OK/Fail for PCP, datalogging, ● streaming, serial server, and Modbus protocols. 3-54 48iQ Instruction Manual Thermo Scientific...
Page 83 5.0V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 24V Diagnostic: Displays current voltage readings. Alarm limits ● are not changeable. 5.0V Step Board: Displays OK/Fail. ● 24V Step Board: Displays OK/Fail. ● Thermo Scientific 48iQ Instruction Manual 3-55...
Page 84: Valve And Pump Resets
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. ● Pump Reset: Resets pump. ● 3-56 48iQ Instruction Manual Thermo Scientific...
Page 85 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 48iQ Instruction Manual 3-57...
Page 86 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. 3-58 48iQ Instruction Manual Thermo Scientific...
Page 87 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 48iQ Instruction Manual 3-59...
Page 88 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. 3-60 48iQ Instruction Manual Thermo Scientific...
Page 89: Serial Numbers
● 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. ● Thermo Scientific 48iQ Instruction Manual 3-61...
Page 90: Predictive Diagnostics
Home Screen>Settings>Health Check>Predictive Diagnostics The Predictive Diagnostics screen contains the following information: Filter Wheel ● Sample Pump ● Capillary ● Flow Path ● IR Source ● Sample Valve ● Zero Valve ● Span Valve ● 3-62 48iQ Instruction Manual Thermo Scientific...
Page 91: 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. ● Thermo Scientific 48iQ Instruction Manual 3-63...
Page 92: Preventive Maintenance
● 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. 3-64 48iQ Instruction Manual Thermo Scientific...
Page 93 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. ● Thermo Scientific 48iQ Instruction Manual 3-65...
Page 94: 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. ● 3-66 48iQ Instruction Manual Thermo Scientific...
Page 95: 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. ● Thermo Scientific 48iQ Instruction Manual 3-67...
Page 96: 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 97 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. Thermo Scientific 48iQ Instruction Manual 3-69...
Page 98 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. 3-70 48iQ Instruction Manual Thermo Scientific...
Page 99 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. Thermo Scientific 48iQ Instruction Manual 3-71...
Page 100: Measurement Settings
Range Mode Selection: User can choose between the various range ● modes: single, dual, or auto. For more information, see “Range Mode Selection” on page 3-76 Range Setting: Sets the concentration range for the analog outputs when ● in single range mode. 3-72 48iQ Instruction Manual Thermo Scientific...
Page 101 Gas Units: Defines the units in which CO concentration reading is ● expressed. Dilution Ratio: Serves as a multiplier when dilution gas is utilized. ● Advanced Measurement Settings: Advanced settings affecting CO ● readings. Thermo Scientific 48iQ Instruction Manual 3-73...
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. ▲ Home Screen>Settings>Measurement Settings>Averaging time (single range mode and O option) 3-74 48iQ Instruction Manual Thermo Scientific...
Page 103 Low Range Averaging Time: Sets low averaging time when in dual or ● auto range mode and when dynamic filtering is disabled. Averaging Time: Sets O averaging time if the O sensor is enabled. ● Thermo Scientific 48iQ Instruction Manual 3-75...
Page 104: Range Mode Selection
100 ppm. Sample concentrations below 50 ppm are output based on low range selection and sample concentrations above 50 ppm are output based on high range selection. When the low range 3-76 48iQ Instruction Manual Thermo Scientific...
Page 105 ▲ Thermo Scientific 48iQ Instruction Manual 3-77...
Page 106: Range Setting
High Range Setting or Low Range Setting, brings up a numeric keypad whereby the user can select a range. Settable ranges according to unit selection include: 5010,000,000 ppb 110,000 ppm 5e-61 % μg/m 5010,000,000 μg/m mg/m 110,000 mg/m 0.00110 g/m 3-78 48iQ Instruction Manual Thermo Scientific...
Page 107: Gas Mode
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. Thermo Scientific 48iQ Instruction Manual 3-79...
Page 108: 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. ● 3-80 48iQ Instruction Manual Thermo Scientific...
Page 109: Advanced Measurement Settings
Optical Bench Settings: User sets the detector gain and S/R initial value. ● This can be done manually or automatically. Compensation: Allows the user to compensate for changes in ● temperature, pressure, and oxygen concentration (if enabled). Pressure Calibration: Calibrates pressure. ● Thermo Scientific 48iQ Instruction Manual 3-81...
Page 110 Calibration The Detector Gain Calibration screen contains the following information: Across: ● Description: Defines the actions the user can do. ● Detector Gain: User can manually set or automatically calibrate the ● detector gain. 3-82 48iQ Instruction Manual Thermo Scientific...
Page 111 Down: ● Manual Entry: Shows current value. If the initial S/R cell is pressed, ● user can manually set the initial S/R value. The instrument should be sampling zero gas when changing the S/R. Thermo Scientific 48iQ Instruction Manual 3-83...
Page 112 User can Stop calibration by pressing the Stop button. End Cal: When pressed, the auto calibration is interrupted and the ● value does not change. Default Values: When pressed, the default S/R value is saved. ● 3-84 48iQ Instruction Manual Thermo Scientific...
Page 113 Correction: Allows for the correction of the CO concentration based ● on 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 48iQ Instruction Manual 3-85...
Page 114 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) 3-86 48iQ Instruction Manual Thermo Scientific...
Page 115 CO concentration when in dual or auto range mode. Corrected Low Range CO Concentration: Read only. Displays the ● corrected low range CO concentration when in dual or auto range mode. Thermo Scientific 48iQ Instruction Manual 3-87...
Page 116 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. ● 3-88 48iQ Instruction Manual Thermo Scientific...
Page 117: 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 48iQ has a default instrument ID of 1. Bayern Hessen Settings: User selects the registers (measured values) that ●...
Page 118 Operation Settings Note Refer to the “Bayern Hessen Protocol” section in the Communications Manual for a detailed description. ▲ 3-90 48iQ Instruction Manual Thermo Scientific...
Page 119: 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. ● Thermo Scientific 48iQ Instruction Manual 3-91...
Page 120 ● 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. ● 3-92 48iQ Instruction Manual Thermo Scientific...
Page 121: Serial Rs-232/485
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. ● Thermo Scientific 48iQ Instruction Manual 3-93...
Page 122: 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. 3-94 48iQ Instruction Manual Thermo Scientific...
Page 123: 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. Thermo Scientific 48iQ Instruction Manual 3-95...
Page 124: 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. 3-96 48iQ Instruction Manual Thermo Scientific...
Page 125: Bayern Hessen Settings
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. Thermo Scientific 48iQ Instruction Manual 3-97...
Page 126 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 3-98 48iQ Instruction Manual Thermo Scientific...
Page 127: Instrument Settings
Alarm Setpoints: View and set all available alarm minimum and ● maximum values. Language: Sets language. ● Clock: Sets date and time. ● Pump Power: Manually enables/disables the pump. ● Reboot Instrument: Reboots the instrument. ● Thermo Scientific 48iQ Instruction Manual 3-99...
Page 128: 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. ● 3-100 48iQ Instruction Manual Thermo Scientific...
Page 129: Alarm Setpoints
● Down: ● CO: CO concentration alarm. ● Bkg Check Offset: User can set the maximum allowable background ● reading offset for calibration and calibration checks. This is set with the high alarm only. Thermo Scientific 48iQ Instruction Manual 3-101...
Page 130 This is set with the high alarm only. Instrument Temperature: Instrument temperature alarm. ● Bench Pressure: Bench pressure alarm. ● Flow: Flow pressure alarm. ● concentration: O concentration alarm (if enabled). ● 3-102 48iQ Instruction Manual Thermo Scientific...
Page 131 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 48iQ Instruction Manual 3-103...
Page 132: 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. ● 3-104 48iQ Instruction Manual Thermo Scientific...
Page 133 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 48iQ Instruction Manual 3-105...
Page 134 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 ● 3-106 48iQ Instruction Manual Thermo Scientific...
Page 135 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 48iQ Instruction Manual 3-107...
Page 136: 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) ● 3-108 48iQ Instruction Manual Thermo Scientific...
Page 137 ● 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 48iQ Instruction Manual 3-109...
Page 138 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. ● 3-110 48iQ Instruction Manual Thermo Scientific...
Page 139: Configuration
Predictive Diagnostics: Enables predictive diagnostics option. ● Communications Board: Enables RS-232 or RS-485 communication ● board option. Analog I/O: Enables analog I/O option. ● Digital I/O: Enables digital I/O option. ● Instrument Warmup: Enables instrument warm up option. ● Thermo Scientific 48iQ Instruction Manual 3-111...
Page 140: 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. 3-112 48iQ Instruction Manual Thermo Scientific...
Page 141 Operation Settings Change Full Access Security Password: Full access password can have a ● blank value or user selected password. Thermo Scientific 48iQ Instruction Manual 3-113...
Page 142: 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. ▲ 3-114 48iQ Instruction Manual Thermo Scientific...
Page 143: 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 Thermo Scientific 48iQ Instruction Manual 3-115...
Page 144 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. 3-116 48iQ Instruction Manual Thermo Scientific...
Page 145: Usb Drive
Firmware Update Via USB Drive: If USB is mounted, user can update ● instrument firmware. Download Data To USB Drive: If USB is mounted, user can ● download/upload information. Change USB Password: User can change the USB password. ● Thermo Scientific 48iQ Instruction Manual 3-117...
Page 146: 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. ● 3-118 48iQ Instruction Manual Thermo Scientific...
Page 147: Download Data To Usb Drive
USB. 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. Thermo Scientific 48iQ Instruction Manual 3-119...
Page 148 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. 3-120 48iQ Instruction Manual Thermo Scientific...
Page 149 “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. Thermo Scientific 48iQ Instruction Manual 3-121...
Page 150: 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 3-122 48iQ Instruction Manual Thermo Scientific...
Page 151 ● 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. Thermo Scientific 48iQ Instruction Manual 3-123...
Page 152: 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 ● 3-124 48iQ Instruction Manual Thermo Scientific...
Page 153: 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 48iQ Instruction Manual 3-125...
Page 155: Chapter 4 Calibration
So cylinder zero air should be scrubbed of the residual CO prior to its use in the 48iQ as a dilution gas or a zero standard. Room air which has been scrubbed of CO can also be used as the zero air source.
Page 156: External Flow Meter(S) And Controller(S)
Prior to calibration, be sure the instrument is operating properly. Turn on the instrument and allow it to stabilize for one hour. Select the operating range and the averaging time of the 48iQ. The averaging time should be less than the zero duration and less than ●...
Page 157: Calibration
Calibration Calibration Calibration Use the following procedure to calibrate the instrument. Connect the Instrument Connect the instrument and the calibration equipment as shown in Figure 4–1. Figure 4–1. Calibration Flow Schematic Thermo Scientific 48iQ Instruction Manual...
Page 158: Detector Gain
The user can set the Detector Gain to factory defaults by pressing on the cell labeled Default Gain located in the Detector Gain column. Home Screen>Measurement Settings>Advanced Measurement Settings>Optical Bench Settings>Continue To Detector Gain Calibration 48iQ Instruction Manual Thermo Scientific...
Page 159: Initial S/R
The user can set the Initial S/R to factory defaults by pressing on the cell labeled Default S/R located in the Initial S/R column. Home Screen>Settings>Measurement Settings>Advanced Measurement Settings>Optical Bench Settings>Continue To Initial S/R Calibration Thermo Scientific 48iQ Instruction Manual...
Page 160: Multipoint Calibration
Cal point coefficients. ▲ To set default values, from the Home Screen select Calibration>Advanced Calibration>Multipoint Calibration. From Multipoint Calibration, select Reset Points to Default Values. The instrument will automatically reset to default values. 48iQ Instruction Manual Thermo Scientific...
Page 161 9. From the Home Screen press Calibration>Advanced Calibration>Multipoint Calibration>Point 1. 10. Enter the span concentration being introduced to the instrument. Press Calibrate. The instrument will perform a series of calculations and save the new parameters. Thermo Scientific 48iQ Instruction Manual...
Page 162: High And Low Multipoint Calibration
Calibration Calibration Frequency In order to generate data of the highest confidence, it is recommended that a multipoint calibration be performed: every three months ● any time any major disassembly of components is performed ● 48iQ Instruction Manual Thermo Scientific...
Page 163: Calibrate Background
The Target Concentration button will read 0.000. The Calculated Background button will display the background needed to make the current CO concentration go to zero. 5. Press Calibrate to set the CO reading to zero and to save the new background. Thermo Scientific 48iQ Instruction Manual...
Page 164: Calibrate Span Coefficient
4. Enter the CO calibration gas concentration using the pushbuttons, and then press Calibrate to calibrate the CO reading to the CO calibration gas. 5. Record the CO concentration and the instrument’s response. 4-10 48iQ Instruction Manual Thermo Scientific...
Page 165 Calibration Calibration Thermo Scientific 48iQ Instruction Manual 4-11...
Page 166: Periodic Zero And Span Checks
For detailed guidance in setting up a quality assurance program, refer to the Code of Federal Regulations and the EPA Handbook on Quality Assurance. 4-12 48iQ Instruction Manual Thermo Scientific...
Page 167: Manual Calibration
Adjust Background allows the user to change zero background. The second button called Adjusted Concentration shows what the new CO concentration would be based on the changed zero background. Press the Calibrate button to save the adjusted zero background value. Thermo Scientific 48iQ Instruction Manual 4-13...
Page 168: Adjust Span Coefficient
Span Coefficient (single 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 4-14 48iQ Instruction Manual Thermo Scientific...
Page 169: Zero/Span Schedule
The span duration button is used to set how long the span gas is sampled by the instrument. The purge duration button is used to set how long the purge period will be after doing Thermo Scientific 48iQ Instruction Manual 4-15...
Page 170: 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. 4-16 48iQ Instruction Manual Thermo Scientific...
Page 171: 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 48iQ Instruction Manual 5-1...
Page 172: Pump Rebuilding
4. Lift the head plate and the intermediate plate off the housing. 5. Hold the pump with one hand, so that the diaphragm is pointing downwards. Lift the diaphragm by the opposing side edges, grasp it and unscrew it in the counter-clockwise direction. 48iQ Instruction Manual Thermo Scientific...
Page 173 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. Thermo Scientific 48iQ Instruction Manual...
Page 174: Figure 5-2. Pump Rebuilding
Maintenance Pump Rebuilding Figure 5–2. Pump Rebuilding 48iQ Instruction Manual Thermo Scientific...
Page 175: Leak Test
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. ▲ Thermo Scientific 48iQ Instruction Manual...
Page 176: Cleaning The Optics
1. Turn off power and disconnect power line. 2. Using 9/64 hex drive, remove the field mirror by removing the four #8- 32 socket cap head screws holding it to the main bench. Figure 5–3. Removing the Field Mirror 48iQ Instruction Manual Thermo Scientific...
Page 177 Dry by blowing clean dry air over the mirror. 4. Reassemble following the above procedure in reverse. It is not necessary to realign any mirror following cleaning. 5. Calibrate the instrument. See the “Calibration” chapter in this manual. Thermo Scientific 48iQ Instruction Manual...
Page 178: Ir Source Replacement
There is no light output ● After cleaning the optics, the IR light intensities remain below 100,000 ● For more information on replacing the IR Source, see “IR Source Replacement” on page 7-45. 48iQ Instruction Manual Thermo Scientific...
Page 179: Chapter 6 Troubleshooting
Guide experience an instrument problem. It also lists 48iQ specific troubleshooting information and alarm messages you may see on the graphics display and provides recommendations about how to resolve the alarm condition.
Page 180 Replace fan if not operating Temperature properly. Dirty fan filter Clean or replace filter. Overheating PCB Locate defective PCB reporting the error and replace if needed. Alarm – Bench Temperature Defective bench Check 10K ohm thermistor and 48iQ Instruction Manual Thermo Scientific...
Page 181 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. Thermo Scientific 48iQ Instruction Manual...
Page 182 Replace board as needed. Open Alarm – Module Thermistor Defective DMC board Replace board as needed. Short Alarm – Bench Temp Cable connection Check the cable connection from the Thermistor Open thermistor to the DMC board. 48iQ Instruction Manual Thermo Scientific...
Page 183 Alarm – IR Detector Bias Cable connection Check the cable connection from the High IR Source to the DMC board. Defective IR Source Replace IR Source as needed. Defective DMC board Replace board as needed. Thermo Scientific 48iQ Instruction Manual...
Page 185: 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 48iQ subassemblies. Safety Read the safety precautions before beginning any procedures in this chapter.
Page 186: 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. ▲ 48iQ Instruction Manual Thermo Scientific...
Page 187: 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/48iQ Refer to Figure 7–2 Figure 7–3 to identify the component location. Thermo Scientific 48iQ Instruction Manual...
Page 188: Figure 7-2. 48Iq Component Layout Top View
Servicing Replacement Parts List Figure 7–2. 48iQ Component Layout Top View Figure 7–3. 48iQ Component Layout Side View 48iQ Instruction Manual Thermo Scientific...
Page 189: 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 48iQ Instruction Manual...
Page 190: 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 48iQ Instruction Manual Thermo Scientific...
Page 191: 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 48iQ Instruction Manual...
Page 192: Figure 7-8. Replacing The Fan
Servicing Fan Replacement Figure 7–8. Replacing the Fan 48iQ Instruction Manual Thermo Scientific...
Page 193: Measurement Side Removal
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 48iQ Instruction Manual...
Page 194: Figure 7-10. Unplugging The Dmc Cable
4. Gripping from the top corners of the front panel and pull outwards. 5. Using #2 Phillips drive, remove three 8-32 flat head screws (Figure 7– 11). Figure 7–11. Unfasten Hardware Front for Measurement Side Removal 7-10 48iQ Instruction Manual Thermo Scientific...
Page 195: Figure 7-12. Unfasten Hardware Rear For Measurement Side Removal
7. Unfasten captive hardware. 8. Using #2 Phillips drive, remove two 8-32 flat head screws. 9. Pull measurement side out. 10. Replace in reverse order. Figure 7–12. Unfasten Hardware Rear for Measurement Side Removal Thermo Scientific 48iQ Instruction Manual 7-11...
Page 196: Lcd Module Replacement
2. Gripping from the top corners of the front panel and pull outwards. 3. Using 1/4 wrench, unfasten four #4-40 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 48iQ Instruction Manual Thermo Scientific...
Page 197: 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 48iQ Instruction Manual 7-13...
Page 198: I/O Replacement
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 48iQ Instruction Manual Thermo Scientific...
Page 199: Figure 7-17. I/O Replacement, Install
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 48iQ Instruction Manual 7-15...
Page 200: Peripherals Support Board And System Controller Board Replacement
1. Turn instrument OFF, unplug power cord, and remove the cover Controller Board (Figure 2–1). Replacement 2. Pull tab out (two per board). 3. Pull board out. Figure 7–19. Replacing the Peripherals Support Board 4. Replace board and reassemble in reverse order. 7-16 48iQ Instruction Manual Thermo Scientific...
Page 201: 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 48iQ Instruction Manual 7-17...
Page 202: 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 48iQ Instruction Manual Thermo Scientific...
Page 203: Pump Replacement
3. Twist opposite direction to unlock tube clamps. Note Push in tube clamp to lock. ▲ 4. Disconnect tubing from pump. 5. Using #2 Phillips drive, unfasten two captive hardware. 6. Slide pump left until keyway meets opening. Thermo Scientific 48iQ Instruction Manual 7-19...
Page 204: 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 48iQ Instruction Manual Thermo Scientific...
Page 205: Figure 7-23. Pump Removal, Keyway
Servicing Pump Replacement Figure 7–23. Pump Removal, Keyway 8. Using #1 Phillips drive, remove two M3 screws. Figure 7–24. Pump replacing, Unfasten Screws 9. Replace pump and reassemble in reverse order. Thermo Scientific 48iQ Instruction Manual 7-21...
Page 206: 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. 7-22 48iQ Instruction Manual Thermo Scientific...
Page 207: 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 Thermo Scientific 48iQ Instruction Manual 7-23...
Page 208: 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. 7-24 48iQ Instruction Manual Thermo Scientific...
Page 209: 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 Thermo Scientific 48iQ Instruction Manual 7-25...
Page 210: 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 7-26 48iQ Instruction Manual Thermo Scientific...
Page 211: 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 7–33). 8. Replace Step POL board and reassemble in reverse order. Thermo Scientific 48iQ Instruction Manual 7-27...
Page 212: 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. Optional Step POL Board 2 Switch Settings 7-28 48iQ Instruction Manual Thermo Scientific...
Page 213: Dmc Optical Bench
Optical Bench removal ● Optical switch replacement, purge wheel housing removal, filter wheel ● replacement, motor replacement, filter wheel and motor alignment Heater Assembly removal ● Pre-Amp/Detector Assembly removal ● IR Source removal ● Thermo Scientific 48iQ Instruction Manual 7-29...
Page 214: Optical Bench Removal
1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Unplug DMC cable J6 (bottom). 3. Disconnect plumbing as shown. 4. Using a #2 Phillips drive, unfasten six captive hardware. Figure 7–35. DMC Removal from Instrument 7-30 48iQ Instruction Manual Thermo Scientific...
Page 215: Optical Switch Replacement
Use the following procedure to replace the optical switch. Replacement Equipment required: Hex drive, 5/32 Phillips drive, #1 1. Unplug J8 (motor) and J4 (opt). 2. Unhook motor and opt connections. Figure 7–36. Motor and Filter Removal pt 1 Thermo Scientific 48iQ Instruction Manual 7-31...
Page 216: Figure 7-37. Motor And Filter Removal (Pt 2)
Servicing DMC Optical Bench 3. Unplug electrical connections. 4. Using a 5/32 hex drive, remove three #10-32 socket cap head screws and lockwashers. Figure 7–37. Motor and Filter Removal (pt 2) 7-32 48iQ Instruction Manual Thermo Scientific...
Page 217: Figure 7-38. Motor And Filter Optical Switch Replacement (Pt 3)
5. Using #1 Phillips drive, unfasten two #4-40 flat head screws to remove the optical cover. 6. Using #1 Phillips drive, unfasten one #2-56 pan head screw to remove the optical switch. Figure 7–38. Motor and Filter Optical Switch Replacement (pt 3) Thermo Scientific 48iQ Instruction Manual 7-33...
Page 218: Purge Wheel Housing Removal
Housing Removal Equipment required: Hex drive, 5/32 1. Using 5/32 hex drive, unfasten two #10-32 socket cap head screws. 2. Carefully pull wheel housing apart. Figure 7–39. Purge Housing Removal from Motor Assembly (pt 4) 7-34 48iQ Instruction Manual Thermo Scientific...
Page 219: Filter Wheel Replacement
5. Using 5/64 hex drive, loosen #8-32 set screw two or three turns only. 6. Carefully slide chopper wheel off motor shaft. 7. Replace filter wheel and align motor and filter wheel. Refer to “Motor and Filter Wheel Alignment” on page 7-39. Thermo Scientific 48iQ Instruction Manual 7-35...
Page 220: Figure 7-40. Filter Wheel
Servicing DMC Optical Bench Figure 7–40. Filter Wheel 7-36 48iQ Instruction Manual Thermo Scientific...
Page 221: Motor Replacement
Removal” on page 7-34. 3. Remove filter wheel. Refer to “Filter Wheel Replacement” on page 4. Using 5/64 hex drive, unfasten two #10-32 socket cap head screws. Figure 7–41. Motor Removal from Motor Mount pt 1 Thermo Scientific 48iQ Instruction Manual 7-37...
Page 222: Figure 7-42. Motor Removal
6. Using 5/64 hex drive, loosen #8-32 set screw two or three turns only. 7. Carefully slide motor out. 8. Replace motor and align filter wheel and motor. Refer to “Motor and Filter Wheel Alignment” on page 7-39. Figure 7–42. Motor Removal 7-38 48iQ Instruction Manual Thermo Scientific...
Page 223: Motor And Filter Wheel Alignment
4. Make sure 10-32 screws are fastened. If motor is replaced, refer to Figure 7–41. 5. After the filter wheel is installed, spin the wheel and observe that it runs true on the motor shaft. Thermo Scientific 48iQ Instruction Manual 7-39...
Page 224: Figure 7-43. Motor Installation Shaft Alignment
6. Let instrument sample zero air for about 90 minutes. 7. From the Home screen, choose Settings>Measurement Settings>Advanced Measurement Settings>Optical Bench Settings>Continue to Initial S/R Calibration. 8. Follow steps in Chapter 4, “Calibration” for “Initial S/R”. 7-40 48iQ Instruction Manual Thermo Scientific...
Page 225 1. Unplug electrical connections, J5 heater, J1 preamp, bottom connection J8 motor, and top connection J4 opt. 2. Using a 5/32 hex drive, unfasten four #10-32 socket cap head screws and lockwashers. Figure 7–44. Bench Removal pt 1 Thermo Scientific 48iQ Instruction Manual 7-41...
Page 226: Figure 7-45. Heater Removal
4. Using #1 Phillips drive, unfasten five #4-40 pan head screws. Figure 7–45. Heater Removal 5. When replacing with new heatsink or thermistor, heatsink compound is required. Apply a thin and even coat of heatsink compound underneath. 7-42 48iQ Instruction Manual Thermo Scientific...
Page 227: Pre-Amp/Detector Assembly Removal
2. Unplug preamp and source IR cable assembly. Figure 7–46. Preamp Detector Cover Removal pt 1 3. Using a #1 Phillips drive, unfasten two #4-40 pan head screws. 4. Lift preamp cover up. Thermo Scientific 48iQ Instruction Manual 7-43...
Page 228: Figure 7-47. Preamp/Detector Removal
6. Pull preamp board assembly outwards. Figure 7–47. Preamp/Detector Removal 7. Replace preamp/detector as needed and assemble in reverse order. Note When reinstalling preamp board assembly, make sure the o-ring is seated properly. ▲ 7-44 48iQ Instruction Manual Thermo Scientific...
Page 229: Ir Source Replacement
After cleaning the optics, the IR light intensities remain below 100,000 ● Use the following procedure to replace the IR source from DMC. 1. Turn the instrument OFF, unplug the power cord, and remove the cover. 2. Disconnect IR source cable as shown. Thermo Scientific 48iQ Instruction Manual 7-45...
Page 230: Figure 7-48. Ir Source Cable Disconnect
Servicing DMC Optical Bench Figure 7–48. IR Source Cable Disconnect 7-46 48iQ Instruction Manual Thermo Scientific...
Page 231: Figure 7-49. Ir Source Assembly Removal
Servicing DMC Optical Bench 3. Using a #1 Phillips drive, unfasten two #4-40 pan head screws. 4. Pull IR source assembly upwards. Figure 7–49. IR Source Assembly Removal 5. Reinstall in reverse order. Thermo Scientific 48iQ Instruction Manual 7-47...
Page 232: Optional Manifold Replacement
2. Unplug three electrical connections (J5, J6, and J8) from the Step POL board 1. Figure 7–50. 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 7–51). 7-48 48iQ Instruction Manual Thermo Scientific...
Page 233 Figure 7–51. Replacing the Manifold pt 2 4. Disconnect tubing. 5. Using a 9/64 hex drive, unfasten four #8-32 socket cap head screws. Figure 7–52. Replacing the Manifold pt 3 6. Replace the manifold and assemble in reverse order. Thermo Scientific 48iQ Instruction Manual 7-49...
Page 234: Optional Zero Air Scrubber Replacement
1. Turn the instrument OFF, unplug the power cord, and remove the cover (Figure 2–1). 2. Disconnect plumbing. 3. Unfasten four #8-32 socket cap head screws. Figure 7–53. Zero Air Scrubber Replacement 4. Replace zero air scrubber and reinstall in reverse order. 7-50 48iQ Instruction Manual Thermo Scientific...
Page 235: Optional Dmc Oxygen Sensor
1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Unplug electrical, unplug DMC cable to oxygen sensor board DMC (J4). 3. Disconnect 2X plumbing. 4. Using a #2 Phillips drive, unfasten captive hardware. Thermo Scientific 48iQ Instruction Manual 7-51...
Page 236 Optional DMC Oxygen Sensor Figure 7–54. Oxygen Sensor Removal pt 1 5. Slide oxygen sensor assembly left. Note Make sure oxygen sensor plate clears the edge and stud. ▲ Figure 7–55. Oxygen Sensor Removal pt 2 7-52 48iQ Instruction Manual Thermo Scientific...
Page 237 6. Slide oxygen sensor assembly upwards. Figure 7–56. Oxygen Sensor Removal pt 3 7. Pull away from the partition panel. Note Make sure oxygen sensor plate clears the edge. ▲ Figure 7–57. Oxygen Sensor Removal pt 4 Thermo Scientific 48iQ Instruction Manual 7-53...
Page 238: Oxygen Sensor Board Replacement
Removal” on page 7-51. 2. Unplug J1. 3. Using a #2 Phillips drive, unfasten five #6-32 pan head screws. Figure 7–58. Replacing the Oxygen Sensor DMC Board 4. Slide board upwards. Note Clear keyway. ▲ 7-54 48iQ Instruction Manual Thermo Scientific...
Page 239 Servicing Optional DMC Oxygen Sensor Figure 7–59. Replacing the Oxygen Sensor DMC Board pt 2 5. Replace oxygen sensor board and reassemble in reverse order. Thermo Scientific 48iQ Instruction Manual 7-55...
Page 240: Oxygen Sensor Capillary Replacement
2. Using a 3/32 ball-end hex drive (angle alignment of screws), unfasten two #4-40 cap screws. 3. Unlock tube clamp. 4. Unplug tube after unlocking tube clamp. Figure 7–60. Replacing the Oxygen Sensor Capillary 7-56 48iQ Instruction Manual Thermo Scientific...
Page 241 Servicing Optional DMC Oxygen Sensor Figure 7–61. Replacing the Capillary pt 2 5. Replace capillary and reassemble in reverse order. Thermo Scientific 48iQ Instruction Manual 7-57...
Page 242: Oxygen Sensor Replacement
Figure 7–62. Replacing the Oxygen Sensor 3. Using a #2 Phillips drive, unfasten three #6-32 flat head screws. 4. Disconnect tubing. 5. Pull out oxygen sensor 6. Replace oxygen sensor and reassemble in reverse order. 7-58 48iQ Instruction Manual Thermo Scientific...
Page 243: Chapter 8 System Description
Chapter 8 System Description The 48iQ 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 244: Optical Bench Dmc
Figure 8–1 shows how the filter wheel purge is configured within the instrument for an external purge gas supply. The instrument’s default configuration allows for active flow of in instrument air through the filter wheel purge. 48iQ Instruction Manual Thermo Scientific...
Page 245: Detector Preamp
System Description Optical Bench DMC Figure 8–1. 48iQ Flow Schematic with Filter Wheel Purge Calibration Note The stability of the purge gas is very important. Since this gas is in the same optical path as the sample, changes in the composition of the purge gas can change the calibration of the instrument.
Page 246: Common Electronics
System Description Common Electronics Common The common electronics contain the core computational and power routing hardware for the 48iQ, and is replicated throughout other iQ series Electronics products (Figure 8–2). It also contains front panel display, the USB ports, the Ethernet port, and the optional I/O interfaces (RS-485, analog, and digital).
Page 247: Figure 8-2. Common System Interconnect Diagram
System Description Common Electronics Figure 8–2. Common System Interconnect Diagram Thermo Scientific 48iQ Instruction Manual...
Page 248: Figure 8-3. 48Iq System Interconnect Diagram
System Description Common Electronics Figure 8–3. 48iQ System Interconnect Diagram 48iQ Instruction Manual Thermo Scientific...
Page 249: 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 48iQ 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 250: Peripherals Support System
Firmware Like the hardware, the firmware is modular and located within microprocessors distributed throughout the instrument. In the 48iQ, microprocessors containing firmware are located as follows: Optical Bench DMC ●...
Page 251: Oxygen Sensor (Optional)
SNMP registers, some of which is interfaced with the front panel Graphical User Interface (GUI). In addition to the operating registers, the 48iQ 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 253: Chapter 9 Optional Equipment
Chapter 9 Optional Equipment The 48iQ 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 254: 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 48iQ Instruction Manual Thermo Scientific...
Page 255: 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 48iQ Instruction Manual...
Page 256: 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 48iQ Instruction Manual Thermo Scientific...
Page 257: 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 48iQ Instruction Manual...
Page 258: 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. ● 48iQ Instruction Manual Thermo Scientific...
Page 259 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 48iQ Instruction Manual...
Page 260 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. 48iQ Instruction Manual Thermo Scientific...
Page 261 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 48iQ Instruction Manual...
Page 262 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 48iQ Instruction Manual Thermo Scientific...
Page 263: 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 48iQ Instruction Manual 9-11...
Page 264: 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 48iQ Instruction Manual Thermo Scientific...
Page 265: 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 48iQ Instruction Manual 9-13...
Page 266: 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 48iQ Instruction Manual Thermo Scientific...
Page 267: 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 48iQ Instruction Manual 9-15...
Page 268: 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 48iQ Instruction Manual Thermo Scientific...
Page 269: Internal Zero/Span Assembly
It may be necessary to use an atmospheric dump bypass plumbing arrangement to accomplish this. Figure 9–9 shows how this option is integrated with the instrument. Figure 9–9. 48iQ Flow Schematic with Zero Span and Zero Air Scrubber Thermo Scientific 48iQ Instruction Manual 9-17...
Page 270: Internal Oxygen
Scrubber instrument. PTFE Particulate A 510 micron pore size, two-inch diameter PTFE element is available for the 48iQ. 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 271: 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 48iQ Instruction Manual...
Page 272: 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 48iQ Instruction Manual Thermo Scientific...
Page 273 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 48iQ Instruction Manual...
Page 274: 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. 48iQ Instruction Manual Thermo Scientific...
Page 275 Figure 1–1. 48iQ Front ..................1-2 Figure 1–2. 48iQ Flow Schematic ............... 1-4 Figure 1–3. 48iQ Flow Schematic with Zero Span and Zero Air Scrubber ..1-4 Figure 1–4. Bench Mount Assembly (dimensions in inches [mm]) ....1-7 ...
Page 276 Figure 7–50. Replacing the Manifold pt 1 ............7-48 Figure 7–51. Replacing the Manifold pt 2 ............7-49 Figure 7–52. Replacing the Manifold pt 3 ............7-49 Figure 7–53. Zero Air Scrubber Replacement ..........7-50 48iQ Instruction Manual Thermo Scientific...
Page 277 Figure 9–7. Digital Relay Switches ..............9-13 Figure 9–8. Valve Driver Outputs ..............9-15 Figure 9–9. 48iQ Flow Schematic with Zero Span and Zero Air Scrubber ..9-17 Figure 9–10. 48iQ Flow Schematic with Internal O Sensor ......9-18 ...
Page 279 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 48iQ Instruction Manual...
Page 280 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 48iQ Instruction Manual Thermo Scientific...
Page 281 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 48iQ Instruction Manual...
Page 282 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.) 48iQ Instruction Manual Thermo Scientific...
Page 283 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 48iQ Instruction Manual...
Page 284 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 48iQ Instruction Manual Thermo Scientific...
Page 285 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 48iQ Instruction Manual...
Page 286 48iQ Instruction Manual Thermo Scientific...
Page 287 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 48iQ Instruction Manual...
Page 288 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 48iQ Instruction Manual Thermo Scientific...
Page 289 (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 48iQ Instruction Manual C-11...
Page 292 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/48iQ © 2017 Thermo Fisher Scientific Inc. All trademarks are the property of Thermo Fisher Scientific and its subsidiaries unless otherwise specified. EPM_117080-00...

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