Thermo Scientific 42iQD User manual

42iQD
Instruction Manual
NOxAnalyzer
119013-00 • 1Sep2021

Thermo Scientific 42iQD Instruction Manual iii
Contents
Introduction........................................................................................................ 1-1
iQ Series Instrument Platform............................................................. 1-1
Principle of Operation ........................................................................ 1-3
Specifications ...................................................................................... 1-5
Dimensions......................................................................................... 1-6
Installation and Setup...................................................................................... 2-1
Unpacking and Inspection .................................................................. 2-1
Cover Removing and Replacing .......................................................... 2-2
Mounting Options.............................................................................. 2-3
Bench Mount................................................................................... 2-3
Rack Mount..................................................................................... 2-4
Setup Procedure.................................................................................. 2-6
Startup ................................................................................................ 2-8
Operation ............................................................................................................ 3-1
Instrument Display ............................................................................. 3-1
Main Menus and Keypads................................................................ 3-5
Numeric Keypad........................................................................... 3-6
Alphanumeric Keypad................................................................... 3-7
Calibration.......................................................................................... 3-9
Calibrate Background..................................................................... 3-10
Calibrate NOxBackground ......................................................... 3-11
Calibrate Span Coefficient ............................................................. 3-12
Calibrate NOxSpan Coefficient.................................................. 3-14
Zero/Span Schedule ....................................................................... 3-16
Advanced Calibration..................................................................... 3-18
Manual Calibration..................................................................... 3-19
Calibration History..................................................................... 3-24
Data.................................................................................................. 3-25
View Data Log (Last Hour)............................................................ 3-26
View Data Log (Last 24 Hours) ..................................................... 3-27
View Data Log (User Defined Time) ............................................. 3-28
Advanced Data Setup..................................................................... 3-30
Data Logging Setup .................................................................... 3-31
Streaming Data Setup ................................................................. 3-33
Settings ............................................................................................. 3-35
Health Check................................................................................. 3-36
Chapter 1
Chapter 2
Chapter 3

Contents
iv 42iQD Instruction Manual Thermo Scientific
Status and Alarms........................................................................ 3-37
Predictive Diagnostics................................................................. 3-58
Maintenance ............................................................................... 3-59
Maintenance History................................................................... 3-63
File Sharing and Support............................................................. 3-64
iQ360 ......................................................................................... 3-65
Measurement Settings.................................................................... 3-68
Averaging Time........................................................................... 3-69
Range Mode Selection................................................................. 3-71
Range Settings............................................................................. 3-73
Gas Mode ................................................................................... 3-75
Gas Units.................................................................................... 3-76
Advanced Measurement Settings................................................. 3-77
Communications............................................................................ 3-83
Wired TCP/DHCP .................................................................... 3-85
Serial RS-232/485....................................................................... 3-87
Analog I/O.................................................................................. 3-88
Digital I/O.................................................................................. 3-89
Email Server (SMTP).................................................................. 3-90
Bayern Hessen Settings ............................................................... 3-91
Ethernet Protocol Selection......................................................... 3-92
Instrument Settings........................................................................ 3-93
Instrument Setpoints................................................................... 3-95
Alarm Setpoints........................................................................... 3-96
Display Setup.............................................................................. 3-98
Clock .......................................................................................... 3-99
Time Zone................................................................................ 3-103
Configuration .............................................................................. 3-107
Security Access Levels................................................................... 3-108
Change Security to View Only Access....................................... 3-110
Change Full Access Security Password....................................... 3-111
Change Instrument Password.................................................... 3-113
Reset Instrument Password ....................................................... 3-115
USB Drive ................................................................................... 3-116
Firmware Update Via USB Drive.............................................. 3-117
Download Data To USB Drive................................................. 3-121
Change USB Password.............................................................. 3-124
Reset USB Password.................................................................. 3-126
User Contact Information............................................................ 3-127
Update Bootloader....................................................................... 3-128
Calibration ..........................................................................................................4-1
Equipment Required........................................................................... 4-2
Zero Gas Generator.......................................................................... 4-2
Compression................................................................................. 4-2
Drying .......................................................................................... 4-2
Chapter 4

Contents
Thermo Scientific 42iQD Instruction Manual v
Oxidation...................................................................................... 4-2
Scrubbing...................................................................................... 4-3
Gas Phase Titrator............................................................................ 4-3
Flow Controllers ........................................................................... 4-3
Pressure Regulator......................................................................... 4-3
Ozone Generator........................................................................... 4-4
Diverter Valve............................................................................... 4-4
Reaction Chamber ........................................................................ 4-4
Mixing Chamber........................................................................... 4-4
Output Manifold .......................................................................... 4-5
Reagents........................................................................................... 4-5
NO Concentration Standard......................................................... 4-5
Assaying a Working NO Standard Against a NIST-traceable NO
Standard........................................................................................ 4-5
Zero Air ........................................................................................ 4-6
Dynamic Parameter Specifications for Gas Titrator.......................... 4-6
Determining GPT System Flow Conditions.................................. 4-7
Pre-Calibration ................................................................................... 4-8
Calibration.......................................................................................... 4-9
Connect GPT Apparatus to the Analyzer ....................................... 4-10
Adjust Instrument Gain ................................................................. 4-10
Set NOxBackground to Zero...................................................... 4-10
Calibrate the NOxChannel to the NOxCalibration Gas............. 4-12
Preparing NOxCalibration Curves.............................................. 4-12
Alternative Calibration Procedure Using NO2Permeation Tube.... 4-13
Commercial Precision Dilution Systems...................................... 4-13
Permeation Tube System............................................................. 4-13
Calibration in Dual Range and Auto Range Mode............................ 4-15
Set NOxBackground to Zero......................................................... 4-15
Calibrate NOx Low......................................................................... 4-16
Calibrate NOx High ....................................................................... 4-16
Zero and Span Check........................................................................ 4-17
Manual Calibration........................................................................... 4-18
Adjust NO and NOxBackgrounds................................................. 4-18
Adjust Span Coefficient.................................................................. 4-19
Reset Bkg to 0.000 and Span Coef to 1.000................................... 4-20
Zero/Span Schedule .......................................................................... 4-21
Next Time ..................................................................................... 4-21
Period ............................................................................................ 4-21
Zero/Span/Purge Duration Minutes .............................................. 4-21
Schedule Averaging Time............................................................... 4-22
Background Calibration and Span Calibration............................... 4-22
Zero/Span Ratio............................................................................. 4-22
Maintenance...................................................................................................... 5-1
Safety Precautions ............................................................................... 5-1
Chapter 5

Contents
vi 42iQD Instruction Manual Thermo Scientific
Fan Filter Inspection and Cleaning ..................................................... 5-1
Thermoelectric Cooler Fins Inspection and Cleaning.......................... 5-2
Capillaries Inspection and Replacement .............................................. 5-3
Pump Rebuilding................................................................................ 5-5
Leak Test ............................................................................................ 5-9
Troubleshooting.................................................................................................6-1
Safety Precautions ............................................................................... 6-1
Troubleshooting Guide....................................................................... 6-1
Servicing.............................................................................................................7-1
Safety Precautions ............................................................................... 7-1
Firmware Updates............................................................................... 7-3
Replacement Parts List........................................................................ 7-3
Fuse Replacement ............................................................................... 7-5
Filter Replacement .............................................................................. 7-6
Fan Replacement................................................................................. 7-7
Measurement Side Removal and Replacing......................................... 7-9
LCD Module Replacement............................................................... 7-12
I/O Replacement............................................................................... 7-14
Peripherals Support Board and System Controller Board
Replacement ..................................................................................... 7-16
DMC Pressure and Flow Board ........................................................ 7-17
Pump Replacement........................................................................... 7-19
Power Supply Replacement............................................................... 7-21
Step POL Board Replacement........................................................... 7-23
DMC PMT Cooler and Reaction Chamber Replacement................. 7-26
PMT Cooler Shroud Removal ....................................................... 7-26
PMT Cooler Board Replacement................................................... 7-28
Reaction Chamber Cleaning and/or Removal ................................ 7-30
Photomultiplier Tube (PMT) Replacement ................................... 7-33
DMC Converter Replacement .......................................................... 7-36
Converter Assembly Board Replacement........................................ 7-37
Converter Cartridge Heater Replacement....................................... 7-38
DMC Ozonator................................................................................ 7-40
Ozonator and Transformer Removal.............................................. 7-40
Ozonator Replacement................................................................... 7-41
Transformer Replacement.............................................................. 7-42
Ozonator and Transformer Board Replacement............................. 7-43
Flow Switch Replacement .............................................................. 7-44
Optional Manifold Replacement....................................................... 7-46
System Description...........................................................................................8-1
Reaction Chamber DMC................................................................. 8-2
Optical Filter................................................................................. 8-2
Chapter 6
Chapter 7
Chapter 8

Contents
Thermo Scientific 42iQD Instruction Manual vii
Photomultiplier Tube ................................................................... 8-2
Photomultiplier Tube Cooler........................................................ 8-2
Ozonator.......................................................................................... 8-2
Ozonator Flow Switch .................................................................. 8-2
Ozonator Permeation Dryer................................................................ 8-3
NO2-to-NO Converter .................................................................... 8-3
Common Electronics .......................................................................... 8-3
Power Supply................................................................................... 8-6
Front Panel ...................................................................................... 8-6
I/O and Communication Components............................................ 8-6
System Controller Board.................................................................. 8-6
Backplane Board .............................................................................. 8-6
Peripherals Support System................................................................. 8-7
Fan................................................................................................... 8-7
Step POL Board............................................................................... 8-7
Pump ............................................................................................... 8-7
Solenoid Valve Panel........................................................................ 8-7
Flow/Pressure DMC ........................................................................... 8-7
Firmware............................................................................................. 8-8
Optional Equipment .......................................................................................... 9-1
Connecting External Devices .............................................................. 9-1
Communication Board .................................................................... 9-2
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
Analog Output Zero Calibration................................................... 9-7
Analog Output Full Scale Calibration ........................................... 9-9
Digital I/O Board........................................................................... 9-11
Digital Inputs.............................................................................. 9-11
Digital Relay Switches................................................................. 9-13
Valve Driver Outputs.................................................................. 9-15
Internal Zero/Span and Sample Valves.............................................. 9-17
PTFE Particulate Filter ..................................................................... 9-18
Ozone Particulate Filter .................................................................... 9-18
Safety, Warranty, and WEEE.......................................................................... A-1
Safety ..................................................................................................A-1
Safety and Equipment Damage Alerts ..............................................A-1
Warranty.............................................................................................A-2
WEEE Compliance.............................................................................A-4
WEEE Symbol.................................................................................A-4
Chapter 9
Appendix A

Contents
viii 42iQD Instruction Manual Thermo Scientific
Quick Reference...............................................................................................B-1
List of Figures .....................................................................................B-1
List of Tables.......................................................................................B-3
GNU Lesser General Public License............................................................ C-1
GNU Lesser General Public License................................................... C-1
Appendix B
Appendix C

Thermo Scientific 42iQD Instruction Manual 1-1
Chapter 1
Introduction
The Thermo Scientific™ 42iQD NOxAnalyzer utilizes chemiluminescence
technology to measure the amount of nitrogen oxides in the air from sub-
ppb levels up to 100 ppm.
This analyzer is a single chamber, single photomultiplier tube design that
measures NOxonly. Dual range and auto range are standard features in this
instrument. The instrument operates continuously in the NOxmode,
providing a response time of less than 10 seconds.
Temperature and pressure correction are standard offerings of the 42iQD
analyzer. User settable alarm levels for concentration and a variety of
internal diagnostics are available from an easy to follow menu structure.
The iQ Series Instrument Platform is a smart environmental monitoring
solution for ambient and source gas analysis that affords greater control
over instrument performance and data availability.
●Distributed Measurement and Control (DMC) module design
simplifies serviceability. Each DMC module contains its own
microprocessor control enabling functional performance validation
at the module level.
●Built-in predictive diagnostics and preventive maintenance
schedules identify problems before they occur. The iQ Series
platform sends email notifications directly to Thermo Fisher
Scientific’s world class service support team or locally identified
addressees in order to proactively communicate analyzer
performance conditions and identify spare parts needs before an
operational concern arises.
●The iQ Series platform supports Modbus, streaming and VNC
protocols over serial and Ethernet as well as analog and digital I/O
for easy integration into most data management systems.
●Three standard USB ports afford convenient data download
capability as well as the ability to connect additional hardware, such
as a computer keyboard or mouse.
●The iQ Series GUI runs on a 7” color touchscreen display. The
GUI is highly flexible and can be customized to enable a tailored
iQ Series
Instrument
Platform

Introduction
iQ Series Instrument Platform
1-2 42iQD Instruction Manual Thermo Scientific
experience to simplify daily operations. Custom designed ePort
software allows remote access to the analyzer with a 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. 42iQD Front

Introduction
Principle of Operation
Thermo Scientific 42iQD Instruction Manual 1-3
The 42iQD operates on the principle that nitric oxide (NO) and ozone
(O3) react to produce a characteristic luminescence with an intensity
linearly proportional to the NO concentration. Infrared light emission
results when NO2molecules decay to lower energy states. Specifically:
ν h+
O
+
NO
O+NO 22
3→
Nitrogen dioxide (NO2) must first be transformed into NO before it can
be measured using the chemiluminescent reaction. NO2is converted to
NO by a molybdenum NO2-to-NO converter heated to about 325 °C.
The ambient air sample is drawn into the 42iQD through the sample
bulkhead, as shown in Figure 1–2. The sample flows through a capillary, to
the NO2-to-NO converter, and then to the reaction chamber (NOxmode).
A flow sensor prior to the reaction chamber measures the sample flow.
Dry air enters the 42iQD through the dry air bulkhead, passes through a
flow switch, and then through a silent discharge ozonator. The ozonator
generates the ozone needed for the chemiluminescent reaction. At the
reaction chamber, the ozone reacts with the NO in the sample to produce
excited NO2molecules. A photomultiplier tube (PMT) housed in a
thermoelectric cooler detects the luminescence generated during this
reaction. From the reaction chamber, the exhaust travels through the ozone
(O3) converter to the pump, and is released through the vent.
The NOxconcentrations are stored in memory. The 42iQD outputs NOx
concentrations to the front panel display and the analog outputs, and also
makes the data available over the serial or Ethernet connection.
Principle of
Operation

Introduction
Principle of Operation
1-4 42iQD Instruction Manual Thermo Scientific
Figure 1–2. 42iQD Flow Schematic
Figure 1–3. 42iQD Flow Schematic with Zero Span

Introduction
Specifications
Thermo Scientific 42iQD Instruction Manual 1-5
Table 1–1 lists the specifications for the 42iQD.
Table 1–1. 42iQD Specifications
Range 0−20 ppm
0−30 mg/m3
Extended Ranges 0−200 ppm
0−150 mg/m3
Zero Noise 0.20 ppb RMS (60 second averaging time)
Detection Limit 0.40 ppb (60 second averaging time)
Zero Drift <0.40 ppb (24 hour)
Span Drift ±1% full-scale
Response Time (in automatic
mode)
40 sec (10 second averaging time)
80 sec (60 second averaging time)
300 sec (300 second averaging time)
Linearity ±1% full-scale
Flow Rate 0.6−0.8 lpm
Operating Temperature Range 0–40 °C
Power Requirements
100–240 VAC 50/60 Hz
275 Watts
Physical Dimensions 24 in (D) x 16.75 in (W) x 8.72 in (H) [609 mm (D) 425.45 mm
(W) x 221.48 mm (H)]
Weight 40 lbs
Analog I/O 4 Isolated Voltage Inputs 0–10 V
6 Isolated Analog Voltages Outputs, with 4 selectable
ranges
6 Isolated Analog Current Outputs, with 2 selectable ranges
Digital I/O 16 Digital Inputs (TTL)
8 Solenoid Driver Outputs
10 Digital Reed Relay Contact Outputs
Serial Ports 1 RS-232/485 port
1 RS-485 External Accessory port
Other Ports 3 Full Speed USB ports (one in front, two in rear)
1 Gigabit Ethernet port
Communication Protocols MODBUS, streaming, Bayern Hessen
Approvals and Certifications CE, TUV-SUD Safety
Specifications

Introduction
Dimensions
1-6 42iQD Instruction Manual Thermo Scientific
Figure 1–4. Bench Mount Assembly (dimensions in inches [mm])
Dimensions

Introduction
Dimensions
Thermo Scientific 42iQD Instruction Manual 1-7
Figure 1–5. Rack Mount Assembly (dimensions in inches [mm])

Introduction
Dimensions
1-8 42iQD Instruction Manual Thermo Scientific
Figure 1–6. Rack Mount Requirements
Figure 1–7. Rack Requirements Part 2

Thermo Scientific 42iQD Instruction Manual 2-1
Chapter 2
Installation and Setup
Installation and Setup describes how to unpack, setup, and start-up the
instrument. The installation should always be followed by instrument
calibration as described in the “Calibration” chapter of this manual.
Equipment Damage Do not attempt to lift the instrument by the cover or
other external fittings. ▲
The 42iQD is shipped complete in one container. If there is obvious
damage to the shipping container when you receive the instrument, notify
the carrier immediately and hold for inspection. The carrier is responsible
for any damage incurred during shipment.
Use the following procedure to unpack and inspect the instrument.
1. Remove the instrument from the shipping container and set it on a
table or bench that allows easy access to both the front and rear.
2. Remove the cover to expose the internal components. (See “Figure 2–
1” on page 2-2.)
3. Check for possible damage during shipment.
4. Check that all connectors and circuit boards are firmly attached.
5. Re-install the cover.
6. Remove any protective plastic material from the case exterior.
Unpacking and
Inspection

Installation and Setup
Cover Removing and Replacing
2-2 42iQD Instruction Manual Thermo Scientific
Use the following procedure to remove and replace the cover.
Equipment required:
Phillips screwdriver, #2
1. Unfasten the four 8-32 screws securing the cover (shipping screws).
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.
Cover Removing
and Replacing

Installation and Setup
Mounting Options
Thermo Scientific 42iQD Instruction Manual 2-3
The instrument can be installed in the following configurations:
●Bench Mount
●Rack 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
Mounting
Options
Bench Mount

Installation and Setup
Mounting Options
2-4 42iQD Instruction Manual Thermo Scientific
Mounting in a rack includes removing the front panel and installing ears
and handles.
Equipment required:
Phillips drive, #2
1. Start by gripping from the top corners of the front panel and pull
outwards.
Figure 2–3. Removing the Front Panel
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.
Rack Mount