Teledyne T750 User manual

User Manual
Models T750 and T750U
Portable Calibrators
with NumaView™ Software
TELEDYNE API (TAPI)
9970 CARROLL CANYON ROAD
SAN DIEGO, CALIFORNIA 92131-1106
USA
Toll-free Phone:
800-324-5190
Phone:
858-657-9800
Fax:
858-657-9816
Email:
[e-mail]
Website:
http://www.teledyne-api.com/
Copyright 2020-2022 083730750B DCN8606
Teledyne API (TAPI) 09 November 2022

083730750B DCN8606 i
NOTICE OF COPYRIGHT
© 2020-2022 Teledyne API (TAPI). All rights reserved.
TRADEMARKS
All trademarks, registered trademarks, brand names or product names appearing in this
document are the property of their respective owners and are used herein for identification
purposes only.

ii 083730750B DCN8606
SAFETY MESSAGES
Important safety messages are provided throughout this manual for the purpose of avoiding personal injury
or instrument damage. Please read these messages carefully. Each safety message is associated with a
safety alert symbol, any of which may be found throughout this manual and inside the instrument. The
symbols with messages are defined as follows:
WARNING: Electrical Shock Hazard
HAZARD: Strong oxidizer
GENERAL WARNING/CAUTION: Read the accompanying message for
specific information.
CAUTION: Hot Surface Warning
Do Not Touch
: Touching some parts of the instrument without
protection or proper tools could result in damage to the part(s) and/or the
instrument.
Technician Symbol: All operations marked with this symbol are to be
performed by qualified maintenance personnel only.
Electrical Ground: This symbol inside the instrument marks the central
safety grounding point for the instrument.

083730750B DCN8606 iii
CAUTION
This product should only be installed, commissioned, and used strictly for the
purpose and in the manner described in this manual. If you improperly install,
commission, or use this instrument in any manner other than as instructed in this
manual or by our Technical Support team, unpredictable behavior could ensue
with possible hazardous consequences.
Such risks, whether during installation and commission or caused by improper
installation/commissioning/use, and their possible hazardous outcomes include
but are not limited to:
RISK
HAZARD
Liquid or dust/debris ingress
Electrical shock hazard
Improper or worn power cable
Electrical shock or fire hazard
Excessive pressure from improper gas
bottle connections
Explosion and projectile hazard
Sampling combustible gas(es)
Explosion and fire hazard
Improper lift & carry techniques
Personal injury
Note that the safety of a system that may incorporate this product is the end
user’s responsibility.
Technical Assistance regarding the use and maintenance of this instrument or any other
Teledyne API product is available by contacting Teledyne API’s Technical Support
Department:
Telephone: [phone]
Email: [e-mail]
or by accessing various service options on our website at http://www.teledyne-api.com/

iv 083730750B DCN8606
CONSIGNES DE SÉCURITÉ
Des consignes de sécurité importantes sont fournies tout au long du présent manuel dans le but d’éviter
des blessures corporelles ou d’endommager les instruments. Veuillez lire attentivement ces consignes.
Chaque consigne de sécurité est représentée par un pictogramme d’alerte de sécurité; ces pictogrammes
se retrouvent dans ce manuel et à l’intérieur des instruments. Les symboles correspondent aux consignes
suivantes :
AVERTISSEMENT : Risque de choc électrique
DANGER : Oxydant puissant
AVERTISSEMENT GÉNÉRAL / MISE EN GARDE : Lire la consigne
complémentaire pour des renseignements spécifiques
MISE EN GARDE : Surface chaude
Ne pas toucher : Toucher à certaines parties de l’instrument sans protection ou
sans les outils appropriés pourrait entraîner des dommages aux pièces ou à
l’instrument.
Pictogramme « technicien » : Toutes les opérations portant ce symbole doivent
être effectuées uniquement par du personnel de maintenance qualifié.
Mise à la terre : Ce symbole à l’intérieur de l’instrument détermine le point central
de la mise à la terre sécuritaire de l’instrument.

083730750B DCN8606 v
MISE EN GARDE
Ce produit ne doit être installé, mis en service et utilisé qu’aux fins et de la
manière décrites dans le présent manuel. Si vous installez, mettez en service ou
utilisez cet instrument de manière incorrecte autre que celle indiquée dans ce
manuel ou sous la direction de notre équipe de soutien technique, un
comportement imprévisible pourrait entraîner des conséquences potentiellement
dangereuses.
Ce qui suit est une liste, non exhaustive, des risques et résultats dangereux
possibles associés avec une mauvaise utilisation, une mise en service incorrecte,
ou causés mauvaise commission.
RISQUE
DANGER
Pénétration de liquide ou de
poussière/débris
Risque de choc électrique
Câble d’alimentation incorrect,
endommagés ou usé
Choc électrique ou risque d’incendie
Pression excessive due à des
connexions de bouteilles de gaz
incorrectes
Risque d’explosion et d’émission de
projectile
Échantillonnage de gaz combustibles
Risque d’explosion et d’incendie
Techniques de manutention,
soulevage et de transport
inappropriées
Blessure corporelle
Notez que la sécurité d’un système qui peut incorporer ce produit est la
responsabilité de l’utilisateur final.

vi 083730750B DCN8606
WARRANTY
WARRANTY POLICY (02024J)
Teledyne API (TAPI), a business unit of Teledyne Instruments, Inc., provides that:
Prior to shipment, TAPI equipment is thoroughly inspected and tested. Should equipment
failure occur, TAPI assures its customers that prompt service and support will be available.
(For the instrument-specific warranty period, please refer to the “Limited Warranty”
section in the Terms and Conditions of Sale on our website at the following link:
http://www.teledyne-api.com/terms_and_conditions.asp).
COVERAGE
After the warranty period and throughout the equipment lifetime, TAPI stands ready to
provide on-site or in-plant service at reasonable rates similar to those of other
manufacturers in the industry. All maintenance and the first level of field troubleshooting
are to be performed by the customer.
NON-TAPI MANUFACTURED EQUIPMENT
Equipment provided but not manufactured by TAPI is warranted and will be repaired to
the extent and according to the current terms and conditions of the respective equipment
manufacturer’s warranty.
PRODUCT RETURN
All units or components returned to Teledyne API should be properly packed for handling
and returned freight prepaid to the nearest designated Service Center. After the repair, the
equipment will be returned, freight prepaid.
The complete Terms and Conditions of Sale can be reviewed at http://www.teledyne-
api.com/terms_and_conditions.asp
CAUTION – Avoid Warranty Invalidation
Failure to comply with proper anti-Electro-Static Discharge (ESD)
handling and packing instructions and Return Merchandise
Authorization (RMA) procedures when returning parts for repair or
calibration may void your warranty. For anti-ESD handling and
packing instructions please refer to the manual, Fundamentals of
ESD, PN 04786, in its “Packing Components for Return to
Teledyne API’s Customer Service” section. The manual can be
downloaded from our website at http://www.teledyne-api.com.
RMA procedures can also be downloaded from our website.

083730750B DCN8606 vii
TABLE OF CONTENTS
INTRODUCTION....................................................................................................... 15
1.1. T750 Specifications ........................................................................................................................ 16
1.2. T750U Specifications...................................................................................................................... 17
1.3. Compliance and Certifications........................................................................................................ 18
GETTING STARTED ................................................................................................ 19
2.1. Unpacking....................................................................................................................................... 19
2.2. Ventilation and Clearance .............................................................................................................. 20
2.3. Instrument Layout........................................................................................................................... 20
Input and Control Panel............................................................................................................ 20
Communications and Output Panel ......................................................................................... 22
Internal Layout.......................................................................................................................... 23
2.4. Connections and Startup................................................................................................................ 24
Electrical Connections.............................................................................................................. 24
Power Connection............................................................................................................. 24
Connecting the Analog Output Channel ........................................................................... 25
Connecting the Status Outputs (Digital Outputs).............................................................. 25
Connecting the Control Inputs (Digital Inputs).................................................................. 26
Connecting the Control Outputs (Digital Outputs) ............................................................ 28
Connecting the Communication Interfaces....................................................................... 28
Pneumatic Connections ........................................................................................................... 34
About Diluent Gas (Zero Air)............................................................................................. 34
About Calibration Gas....................................................................................................... 34
Connecting Diluent Gas to the Calibrator ......................................................................... 35
Connecting Calibration Source Gas to the Calibrator....................................................... 35
Connecting Gas Outputs from the Calibrator.................................................................... 36
Pneumatic Flow Diagrams ....................................................................................................... 40
Flow Diagrams with Other Pneumatic Connections ......................................................... 41
2.5. Startup, Functional Checks, and Initial Calibration ........................................................................ 47
Alerts: Warnings and Other Messages .................................................................................... 48
Functional Checks.................................................................................................................... 48
Calibration Gas Setup .............................................................................................................. 49
Selecting an Operating Mode for the O3Generator................................................................. 50
Gas Flow Rate Setup ............................................................................................................... 50
Start Generating ....................................................................................................................... 51
CONFIGURATION.................................................................................................... 53
3.1. Menu Overview............................................................................................................................... 53
3.2. Main Menu Pages........................................................................................................................... 56
Home........................................................................................................................................ 56
Dashboard................................................................................................................................ 57
Alerts ........................................................................................................................................ 58
Generate................................................................................................................................... 59
Utilities...................................................................................................................................... 59
Datalog View..................................................................................................................... 59
Alerts Log.......................................................................................................................... 60
USB Utilities (Downloads and Updates) ........................................................................... 60
Diagnostics........................................................................................................................ 62
3.3. Setup (Configuring the Calibrator’s Features/Functions) ................................................................ 62
Setup>Data Logging................................................................................................................. 63
Creating a User-Defined Data Log.................................................................................... 64
Configuring Trigger Types for the Datalogger .................................................................. 65
Setup>Events........................................................................................................................... 66
Creating User-defined Events........................................................................................... 67
Editing or Deleting Events................................................................................................. 67
Setup>Dashboard .................................................................................................................... 68

viii 083730750B DCN8606
Setup>Vars (Variables) ............................................................................................................ 69
Setup>Homescreen.................................................................................................................. 69
Setup>Digital Outputs (Status)................................................................................................. 70
Setup>Sequences.................................................................................................................... 70
Setting up Control Inputs for a Sequence......................................................................... 73
Setting up Control Outputs for a Sequence...................................................................... 74
Activating, Editing, Deleting Sequences........................................................................... 74
Setup>Levels............................................................................................................................ 75
Editing/Deleting Levels ..................................................................................................... 76
Activating Levels ............................................................................................................... 76
Setup>Analog Outputs ............................................................................................................. 77
Analog Output Voltage Range Configuration.................................................................... 78
Adding a Recorder Offset to the Analog Output ............................................................... 78
Calibrating the Analog Output........................................................................................... 78
Setup>Instrument................................................................................................................... 80
Setup>Comm (Communications) ........................................................................................... 80
COM1/COM2 .................................................................................................................. 80
TCP Port1 ....................................................................................................................... 81
TCP Port2 ....................................................................................................................... 81
Network Settings............................................................................................................. 81
Setup>Gas ............................................................................................................................. 82
OPERATION 83
4.1. Standby Mode ................................................................................................................................ 83
4.2. Generate Mode............................................................................................................................... 84
Generate>AUTO ...................................................................................................................... 87
Generate>MANUAL ................................................................................................................. 87
Determining the Source Gas Flow Rate ........................................................................... 88
Determining the Diluent Gas Flow Rate ........................................................................... 88
Determining the Diluent Gas Flow Rate with O3Generator Option.................................. 89
Generate>GPTZ, GPTPS, GPT: Understanding Gas Phase Titration (GPT).......................... 89
Meeting USEPA Guidelines for GPT Calibration.............................................................. 89
GPT Theory....................................................................................................................... 90
Choosing an Input Concentration for the NO.................................................................... 90
Determining the Total Flow for GPT Calibration Mixtures ................................................ 91
Generate>GPTZ: Generating GPT Flow Conditions (to be run prior to performing GPTPS and
GPT) ................................................................................................................................................... 91
Generate>GPTPS: Performing a GPT Pre-Set (to be run after GPTZ and prior to GPT) ....... 93
Generate>GPT: Performing a Gas Phase Titration Calibration............................................... 95
Generate>SEQUENCE: Automatic Operation Using Sequences............................................ 96
Activating a Sequence from the Touchscreen.................................................................. 96
Activating a Sequence with the Internal Timer ................................................................. 96
Activating a Sequence with the External Digital Control Inputs........................................ 97
Activating a Sequence or Defaulting to Control Other Devices........................................ 97
Activating a Sequence as a Subprocess in another Sequence........................................ 97
Activating a Sequence through a Communications Interface........................................... 97
Generate>LEVEL: Automatic Operation Using LEADS Levels ............................................... 97
Activating Levels ............................................................................................................... 98
COMMUNICATIONS AND REMOTE OPERATION ................................................. 99
5.1. Using the Communication Ports..................................................................................................... 99
Data Terminal / Communication Equipment (DTE, DCE)........................................................ 99
Modes, Baud Rate and Serial Communication ........................................................................ 99
Serial Communication: RS-232.............................................................................................. 100
Serial Communication: RS-485 (Option)................................................................................ 100
5.2. Ethernet ........................................................................................................................................ 100
5.3. NumaView™ Remote................................................................................................................... 100
5.4. MODBUS Protocol and Com Port Configuration.......................................................................... 101

083730750B DCN8606 ix
CALIBRATION AND VERIFICATION..................................................................... 103
6.1. Verifying and Calibrating the MFCs.............................................................................................. 103
Setup for Verifying and Calibrating the MFCs........................................................................ 104
Verifying and Calibrating the MFCs ....................................................................................... 104
6.2. Verifying and Calibrating the O3Photometer (Option in T750) .................................................... 105
Setup and Verification of O3Photometer Performance.......................................................... 106
Setup and Calibration of O3Photometer................................................................................ 107
Photometer Zero Calibration........................................................................................... 110
Photometer Span Calibration.......................................................................................... 110
O3Photometer (Option in T750) Gas Flow Calibration.......................................................... 111
O3Photometer Backpressure Compensation Calibration...................................................... 112
6.3. Calibrating the O3Generator (Option in T750)............................................................................. 113
6.4.Calibrating Gas Pressure Sensors ............................................................................................... 114
Pressure Sensor Setup .......................................................................................................... 114
Calibrating the Diluent, Cal Gas, and O3Generator Option Pressure Sensors..................... 116
Calibrating the O3Photometer Option Pressure Sensor........................................................ 116
6.5. Analog Inputs Calibration ............................................................................................................. 117
MAINTENANCE AND SERVICE ............................................................................ 119
7.1. Maintenance Schedule................................................................................................................. 119
7.2. Operational Health Checks........................................................................................................... 123
7.3. Software/Firmware Updates......................................................................................................... 123
Remote Updates .................................................................................................................... 123
Manual Reload/Update Procedures ....................................................................................... 124
7.4. Performing the Auto Leak Check ................................................................................................. 124
Leak Check Equipment and Calibrator Setup........................................................................ 124
Returning the Calibrator to Service after Auto Leak Check ................................................... 127
7.5. Cleaning or Replacing the Absorption Tube................................................................................. 128
7.6. Adjusting the Photometer Option’s UV Source Lamp .................................................................. 129
7.7. Replacing the Photometer Option’s UV Source Lamp ................................................................. 130
7.8. Adjusting or Replacing the Ozone Generator UV Lamp .............................................................. 131
GENERAL TROUBLESHOOTING & SERVICE ..................................................... 133
8.1. General Troubleshooting.............................................................................................................. 133
Fault Diagnosis with Messages in the Alerts Page ................................................................ 134
Fault Diagnosis With Dashboard Functions........................................................................... 135
Using the Diagnostic Analog Inputs Function ........................................................................ 136
8.2. Using the Signal Outputs for Diagnostics..................................................................................... 137
8.3. Using the Internal Electronic Status LEDs ................................................................................... 138
CPU Status Indicator.............................................................................................................. 138
Power Distribution Board Status LEDs .................................................................................. 138
I2C Bus Watchdog Status LEDs...................................................................................... 138
Troubleshooting with Power Distribution Board Status LEDs......................................... 139
8.4. Subsystem Checkout.................................................................................................................... 140
Verify Subsystem Calibration ................................................................................................. 140
AC Main Power ...................................................................................................................... 140
DC Power Supply ................................................................................................................... 140
I2C Bus ................................................................................................................................... 142
Touchscreen Interface............................................................................................................ 142
Power Distribution Board........................................................................................................ 143
Input Gas Pressure/Flow Sensor Assembly........................................................................... 143
Photometer O3Generator Pressure /Flow Sensor Assembly................................................ 144
Motherboard ........................................................................................................................... 145
A/D Functions.................................................................................................................. 145
Analog Outputs Voltage.................................................................................................. 145
Status Outputs (Digital Output Pins 1 – 8)...................................................................... 146
Digital Control Inputs....................................................................................................... 146
Control Outputs (Digital Output Pins 1 – 12) .................................................................. 147

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CPU...................................................................................................................................... 147
RS-232 Communications, General Troubleshooting ........................................................... 148
Temperature Problems......................................................................................................... 148
Box / Chassis Temperature .......................................................................................... 148
Photometer Sample Chamber Temperature................................................................. 148
UV Lamp Temperature ................................................................................................. 148
Ozone Generator Temperature..................................................................................... 149
8.5. Troubleshooting the O3Photometer............................................................................................. 149
Dynamic Problems with the O3Photometer........................................................................... 149
Noisy or Unstable O3Readings at Zero.......................................................................... 150
Noisy, Unstable, or Non-Linear Span O3Readings........................................................ 150
Slow Response to Changes in Concentration ................................................................ 150
The Analog Output Signal Level Does Not Agree With Display Readings..................... 150
Cannot Zero .................................................................................................................... 150
Cannot Span ................................................................................................................... 151
Checking Measure / Reference Valve.................................................................................... 151
8.6. Troubleshooting the O3Generator ............................................................................................... 152
8.7. Service Procedures ...................................................................................................................... 152
Disk-On-Module Replacement Procedure ............................................................................. 152
8.8. Technical Assistance.................................................................................................................... 153
PRINCIPLES OF OPERATION............................................................................... 155
9.1. Basic Principles of Dynamic Dilution Calibration.......................................................................... 155
9.2. Gas Phase Titration Mixtures for O3and NO2.............................................................................. 156
9.3. Pneumatic Operation.................................................................................................................... 157
Gas Flow Control.................................................................................................................... 157
Diluent and Source Gas Flow Control ............................................................................ 157
Flow Control Assemblies for O3Components................................................................. 158
Critical Flow Orifices ....................................................................................................... 158
Internal Gas Pressure Sensors .............................................................................................. 159
9.4. Electronic Operation..................................................................................................................... 160
Overview................................................................................................................................. 160
Central Processing Unit (CPU)............................................................................................... 162
Disk On Module (DOM)................................................................................................... 162
Flash Chip....................................................................................................................... 162
Power Distribution Board (Relay PCA) .................................................................................. 163
Valve Control................................................................................................................... 164
Heater Control................................................................................................................. 165
Power Distribution Board Status LEDs and Watch Dog Circuitry................................... 165
Watchdog Indicator (D1)................................................................................................. 166
Motherboard ........................................................................................................................... 166
Power Supply and Circuit Breaker ......................................................................................... 167
9.5. Input and Control Panel Touchscreen/Display Interface.............................................................. 168
Input and Control Panel Interface PCA.................................................................................. 168
9.6. Software Operation....................................................................................................................... 169
9.7. O3Generator Operation ............................................................................................................... 170
Principle of Photolytic O3Generation..................................................................................... 170
O3 Generator Pneumatic Operation........................................................................................ 171
O3 Generator Electronic Operation......................................................................................... 172
O3Generator Temperature Control ................................................................................ 173
O3Generator Pneumatic Sensor .................................................................................... 173
9.8. Photometer Operation .................................................................................................................. 173
Measurement Method ............................................................................................................ 174
Calculating O3Concentration.......................................................................................... 174
The Measurement / Reference Cycle ............................................................................. 175
The Absorption Path ....................................................................................................... 177
Interferent Rejection........................................................................................................ 177

083730750B DCN8606 xi
Photometer Layout ................................................................................................................. 178
Photometer Pneumatic Operation.......................................................................................... 178
Photometer Electronic Operation ........................................................................................... 179
O3Photometer Temperature Control.............................................................................. 180
Pneumatic Sensors for the O3Photometer..................................................................... 180
LIST OF FIGURES
Figure 2-1. Control/Display and Input Panel (shown with Model T750 label)............................................. 20
Figure 2-2. Display Screen and Touch Control........................................................................................... 21
Figure 2-3. Communications and Output Panel.......................................................................................... 22
Figure 2-4. Internal Layout (components labeled “option” are standard in T750U).................................... 23
Figure 2-5. Analog Output Connector......................................................................................................... 25
Figure 2-6. Status Output Connector.......................................................................................................... 25
Figure 2-7. Digital Control Input Connectors............................................................................................... 27
Figure 2-8. Digital Control Output Connector.............................................................................................. 28
Figure 2-9. Connector Pin-Outs for RS-232 Mode ..................................................................................... 29
Figure 2-10. Jumper and Cables for Multidrop Mode ................................................................................. 32
Figure 2-11. RS-232-Multidrop PCA Host/Calibrator Interconnect Diagram .............................................. 33
Figure 2-12. Set up for T750 – Connecting the Basic T750 to a Sample Manifold .................................... 36
Figure 2-13. Connections to a Sample Gas Manifold ................................................................................. 37
Figure 2-14. Connections to Calibration Manifold....................................................................................... 38
Figure 2-15. Connections to a Dual Span Gas / Zero Air Manifold ............................................................ 39
Figure 2-16. T750 Pneumatic Diagram – Base Unit ................................................................................... 40
Figure 2-17. T750 Pneumatics with Optional O3Generator and GPT Chamber........................................ 41
Figure 2-18. Flow with O3Generator and Photometer (Options in T750)................................................... 43
Figure 2-19. Basic T750 with Multiple Calibration Gas MFCs .................................................................... 45
Figure 2-20. Flow with Multiple Cal Gas MFCs and O3Generator and Photometer (options in T750) ...... 46
Figure 2-21. Status Screens at Startup....................................................................................................... 47
Figure 2-22. Initial Home Page (in Standby Mode, prior to Gas Setup) ..................................................... 47
Figure 2-23. Viewing Active Alerts Page..................................................................................................... 48
Figure 2-24. Basic Generate Initiation ........................................................................................................ 51
Figure 3-1. User Interface Orientation ........................................................................................................ 56
Figure 3-2. Dashboard Page....................................................................................................................... 57
Figure 3-3. Viewing a Live Plot from Dashboard Page............................................................................... 57
Figure 3-4. Navigating to the Active Alerts Page........................................................................................ 58
Figure 3-5. Active Alerts Cleared ................................................................................................................ 59
Figure 3-6. Generate Menu (GPT buttons available with O3Generator Option) ........................................ 59
Figure 3-7. USB Utilities Pages .................................................................................................................. 60
Figure 3-8. Das Download Page................................................................................................................. 61
Figure 3-9. Configuration Transfer.............................................................................................................. 61
Figure 3-10. Setup>Data Logging Page ..................................................................................................... 63
Figure 3-11. Datalog Configuration, New Log Page................................................................................... 63
Figure 3-12. Datalog Configuration............................................................................................................. 64
Figure 3-13. Datalog Periodic Trigger Configuration .................................................................................. 65
Figure 3-14. Datalog - Conditional Trigger Configuration........................................................................... 65
Figure 3-15. Events List .............................................................................................................................. 66
Figure 3-16. Event Configuration ................................................................................................................ 67
Figure 3-17. Existing Event for Viewing or Editing...................................................................................... 67
Figure 3-18. Dashboard Configuration Page through Setup Menu ............................................................ 68
Figure 3-19. Dashboard Configuration Page through Dashboard Shortcut................................................ 68
Figure 3-20. Vars Configuration Page ........................................................................................................ 69
Figure 3-21. Home Configuration through Setup>Homescreen Menu ....................................................... 69
Figure 3-22. Digital Status Outputs Setup .................................................................................................. 70

xii 083730750B DCN8606
Figure 3-23. Example List of Configured Sequences ................................................................................. 71
Figure 3-24. Configuring a Sequence ......................................................................................................... 71
Figure 3-25. Sequence CC Inputs Setup Page........................................................................................... 73
Figure 3-26. Sequence CC Outputs Setup Page........................................................................................ 74
Figure 3-27. Levels Programming and Editing............................................................................................ 76
Figure 3-28. Analog Output Configuration .................................................................................................. 77
Figure 3-29. Analog Output Auto Calibration Page .................................................................................... 78
Figure 3-30. Setup for Manually Calibrating the Analog Output ................................................................. 79
Figure 3-31. Analog Output Manual Calibration Page................................................................................ 79
Figure 3-32. Setup>Instrument Menu ......................................................................................................... 80
Figure 3-33. Communications Configuration, Network Settings................................................................. 82
Figure 4-1. Gas Flow through T750 with O3Generator and Photometer Options during Standby ............ 84
Figure 4-2. Generate Menu (GPT buttons available with O3Generator Option) ........................................ 84
Figure 4-3. Gas Flow through Basic T750 in GENERATE Mode ............................................................... 85
Figure 4-4. Gas Flow through T750 with O3Options when Generating Non-O3 Source Gas..................... 86
Figure 4-5. Gas Flow through T750 with O3Options when Generating O3................................................ 86
Figure 4-6. Generate>AUTO Page ............................................................................................................. 87
Figure 4-7. Generate>MANUAL Page ........................................................................................................ 87
Figure 4-8. Gas Flow through T750 with O3Options when in GPTZ Mode................................................ 92
Figure 4-9. Sample Generate GPTZ Page ................................................................................................. 92
Figure 4-10. Gas Flow through T750 with O3Options when in GPTPS Mode ........................................... 94
Figure 4-11. Sample Generate GPTPS Page............................................................................................. 94
Figure 4-12. Gas Flow through T750 with O3Options when in GPT Mode................................................ 95
Figure 4-13. Sample Generate GPT Page.................................................................................................. 96
Figure 6-1. MFC Config Page ................................................................................................................... 103
Figure 6-2. MFC Calibration...................................................................................................................... 105
Figure 6-3. Set up for Verifying O3Photometer ........................................................................................ 106
Figure 6-4. O3Photometer Performance Verification ............................................................................... 107
Figure 6-5. External Photometer Calibration Setup with Direct Connections........................................... 108
Figure 6-6. External Photometer Calibration Setup with Calibration Manifolds........................................ 109
Figure 6-7. O3Photometer Bench Cal Page............................................................................................. 110
Figure 6-8. Photometer Flow Calibration Page......................................................................................... 111
Figure 6-9. Back Pressure Compensation................................................................................................ 112
Figure 6-10. O3Generator Calibration Setup............................................................................................ 113
Figure 6-11. Pressure Monitor Points, T750 Basic Unit............................................................................ 115
Figure 6-12. Pressure Monitor Points, T750 with O3 Options and Multiple Cal MFCs Installed.............. 115
Figure 6-13. PSIG Pressure Ca ................................................................................................................ 116
Figure 6-14. In-Hg Pressure Cal for O3Photometer Option ..................................................................... 117
Figure 6-15. Analog Inputs Calibration Page............................................................................................ 117
Figure 7-1. Report Generation Page......................................................................................................... 123
Figure 7-2. Remote Update Page ............................................................................................................. 123
Figure 7-3. Manual Update Page (and other utilities) ............................................................................... 124
Figure 7-4. Clamping the Photometer Sensor Input and Pump Output.................................................... 125
Figure 7-5. Internal Vent Location............................................................................................................. 126
Figure 7-6. Gas Flow for Auto-Leak Check Procedure of Base Model T750 (no Photometer) ................ 126
Figure 7-7. Gas Flow for Auto-Leak Check Procedure of Calibrator with Photometer............................. 127
Figure 7-8. Photometer – Location of UV Detector Gain Adjustment & UV Lamp Set Screw.................. 129
Figure 7-9. O3Generator UV Lamp Assembly.......................................................................................... 131
Figure 8-1. CPU Status Indicator .............................................................................................................. 138
Figure 8-2. Power Distribution Board Status LEDs Used for Troubleshooting......................................... 139
Figure 8-3. Location of DC Power Test Points on Power distribution board ............................................ 141
Figure 8-4. Analog Outputs Page ............................................................................................................. 145
Figure 9-1. Electronic Block Diagram ....................................................................................................... 160
Figure 9-2. CPU Board Annotated............................................................................................................ 162
Figure 9-3. Power Distribution Board (Relay PCA)................................................................................... 163
Figure 9-4. Relay PCA Location ............................................................................................................... 164
Figure 9-5. Heater Control Loop Block Diagram....................................................................................... 165

083730750B DCN8606 xiii
Figure 9-6. Status LED Locations – Power Distribution Board................................................................. 165
Figure 9-7. Power Distribution Block diagram........................................................................................... 167
Figure 9-8. Input and Control Panel Layout.............................................................................................. 168
Figure 9-9. Schematic of Basic Software Operation................................................................................. 169
Figure 9-10. O3Generator Internal Pneumatics ....................................................................................... 170
Figure 9-11. O3Generator Valve and Gas Fixture Locations ................................................................... 171
Figure 9-12. O3Generator Electronic Block Diagram............................................................................... 172
Figure 9-13. O3Generator Electronic Components Location ................................................................... 172
Figure 9-14. O3Generator Temperature Thermistor and DC Heater Locations....................................... 173
Figure 9-15. O3Photometer Gas Flow – Measure Cycle.......................................................................... 176
Figure 9-16. O3Photometer Gas Flow – Reference Cycle....................................................................... 176
Figure 9-17. O3Photometer Absorption Path ........................................................................................... 177
Figure 9-18. O3Photometer Layout – Top Cover Removed..................................................................... 178
Figure 9-19. O3Photometer Electronic Block Diagram............................................................................. 179
LIST OF TABLES
Table 1-1. T750 System Specifications ...................................................................................................... 16
Table 1-2. T750 Options Specifications...................................................................................................... 17
Table 1-3. T750U System Specifications.................................................................................................... 17
Table 1-4. T750U GPT and Option Specifications...................................................................................... 18
Table 2-2. Communications and Output Panel Description........................................................................ 22
Table 2-3. Status Output Pin Assignments................................................................................................. 26
Table 2-4. Control Input Pin Assignments .................................................................................................. 26
Table 2-5. Control Output Pin Assignments................................................................................................ 28
Table 2-6. Valve States for T750 Calibrator with Optional O3Generator. .................................................. 42
Table 2-7. Valve States with Optional O3Generator and Photometer (Options in T750)........................... 44
Table 3-1. Menu Overview.......................................................................................................................... 53
Table 3-2. Automatic Calibration Sequence Set Up Attributes................................................................... 72
Table 3-3. Analog Output Voltage Range Min/Max .................................................................................... 78
Table 3-4. Voltage Tolerances for the Analog Output Calibration .............................................................. 79
Table 3-5. COM1/COM2 Configuration....................................................................................................... 80
Table 3-6. LAN/Ethernet Configuration Properties ..................................................................................... 82
Table 4-1. Status of Internal Pneumatics During Standby Mode................................................................ 83
Table 4-2. Status of Internal Pneumatics During GENERATE Mode ......................................................... 85
Table 4-3. Status of Internal Pneumatics During GENERATE GPTZ Mode.......................................... 91
Table 4-4. Status of Internal Pneumatics During GENERATE GPTPS Mode ....................................... 93
Table 4-5. Status of Internal Pneumatics During GENERATE GPT Mode ............................................ 95
Table 5-1. Ethernet Status Indicators ....................................................................................................... 100
Table 6-1. Examples of MFC Calibration Points....................................................................................... 104
Table 6-2. Pressure Sensor Calibration Setup ......................................................................................... 114
Table 7-1. Maintenance Schedule ............................................................................................................ 121
Table 8-1. Possible Alerts ......................................................................................................................... 134
Table 8-2. Dashboard Functions (Tags) - Indicated Failures ................................................................... 135
Table 8-3. Signal Outputs as Diagnostic Tools......................................................................................... 137
Table 8-4. Power Distribution Board Watchdog LED Failure Indications ................................................. 138
Table 8-5. Power Distribution Board Status LED Failure Indications ....................................................... 139
Table 8-6. DC Power Test Point and Wiring Color Codes........................................................................ 141
Table 8-7. DC Power Supply Acceptable Levels ...................................................................................... 142
Table 8-8. Power Distribution Board Control Devices .............................................................................. 143
Table 8-9. Analog Output Test Function - Nominal Values Voltage Outputs ........................................... 146
Table 8-10. Digital Control Input Pin Assignments and Corresponding Functions................................... 146

xiv 083730750B DCN8606
Table 8-11. Control Outputs Pin Assignments and Corresponding Functions Check.............................. 147
Table 9-1. Power Distribution Board Status LEDs.................................................................................... 166
Table 9-2. Photometer Measurement / Reference Cycle ......................................................................... 175
APPENDIX
APPENDIX – INTERCONNECT DIAGRAM

083730750B DCN8606 15
INTRODUCTION
The Model T750 and Model T750U are portable, microprocessor-controlled calibrators for
precision gas analyzers, with the T750U designed for precision trace-level gas analyzers.
Using a combination of highly accurate mass flow controllers and compressed sources of
standard gases, calibration standards are provided for multipoint span and zero calibrations.
The T750 can be equipped with an optional, programmable ozone generator that includes
an internal gas phase titration (GPT) chamber for accurate, dependable ozone calibrations.
This option can also include a UV photometer option for even more precise control of the
ozone generator. The standard T750U has all these features and is designed for producing
stable ozone concentrations not only in a high range mode similar to the T750, but also in
a low range or fractional mode for producing much lower levels of ozone down to 3 ppb.
As many as 50 independent calibration sequences may be programmed into these portable
calibrators, covering time periods of up to one year. Sequence setup is simple and intuitive,
and may be actuated manually, automatically, or by a remote signal. The sequences may
be uploaded remotely, including remote editing. All programs are maintained in non-
volatile memory.
The T750 and the T750U provide fast response, repeatability, overall accuracy and ease of
operation, and may be combined with a Teledyne API Zero Air Generator to provide the
ultimate in easy to use, precise calibration for your gas analyzers.

16 083730750B DCN8606
1.1. T750 SPECIFICATIONS
Specifications are based on constant conditions.
Specifications are subject to change without notice.
Table 1-1. T750 System Specifications
PARAMETER
SPECIFICATION
Flow Measurement Accuracy ±1.0% of Full Scale
Repeatability of Flow Control ±0.2% of Full Scale
Linearity of Flow Measurement ±0.5% of Full Scale
Flow Range of Diluent Air 0 to 10 SLPM – Optional Ranges: 0 to 5 SLPM; 0 to 20 SLPM
Flow Range of Cylinder Gases 0 to 100 cc/min – Optional Ranges: 0 to 50 cc/min; 0 to 200 cc/min
Zero Air Required 10 SLPM @ 30 psi – Optional: 20 SLPM @ 30 psi
Input Pressure 20 to 40 psig
Response Time 60 Seconds (98%)
AC Power
Rating
Typical Power Consumption
100-240 V~ 50/60 Hz, 1.5 A
115 V: 76 W 230 V: 80 W
Analog Outputs
1 user configurable output
Analog Output Ranges
10V, 5V, 1V, 0.1V (selectable)
Range with 5% under/over-range
Analog Output Resolution
1 part in 4096 of selected full-scale voltage (12 bit)
Standard I/O
1 Ethernet: 10/100Base-T
2 RS-232 (300 – 115,200 baud)
2 USB device ports
12 digital control outputs
12 digital control inputs
8 digital status outputs
Optional I/O
1 USB com port
1 RS485
Multidrop RS232
Operating Temperature Range
5 - 40ºC
Humidity Range
0 - 95% RH, non-condensing
Environmental Conditions
Installation Category (Over Voltage Category ) II
Pollution Degree 2
Intended for Indoor Use Only at Altitudes
≤
2000m
Materials
Cal Gas Output Wetted Surfaces: PTFE
Cal Gas Output Manifold: Glass-coated Steel
Dimensions (H x W x D)
9” x 17” x 21” (229 mm x 432 mm x 533 mm)
Weight
37 lbs (16.78 kg);
46.6 lbs (21.14 kg) with optional photometer, GPT, and O3generator

083730750B DCN8606 17
Table 1-2. T750 Options Specifications
PARAMETER
SPECIFICATION
T750 Ozone Generator Option
Maximum Output 5.5 ppm SLPM
Minimum Output 100 ppb SLPM
Response Time: 180 seconds to 98%
T750 O
3
Photometer Option
Full Scale Range 0 - 100 ppb to 0 - 10 ppm (user selectable)
Precision 1.0 ppb
Linearity 1.0% of reading
Rise/Fall Time < 20 sec (photometer response)
Response Time 180 sec to 95% (system response)
Zero Drift < 1.0 ppb / 24 hours
Span Drift < 1% / 24 hours
Minimum Gas Flow Required 800 cc/min
1.2. T750U SPECIFICATIONS
Table 1-3. T750U System Specifications
PARAMETER
SPECIFICATION
Flow Measurement Accuracy ±1.0% of Full Scale
Repeatability of Flow Control ±0.2% of Full Scale
Linearity of Flow Measurement ±0.5% of Full Scale
Flow Range of Diluent Air 0 to 10 SLPM – Optional Ranges: 0 to 5 SLPM; 0 to 20 SLPM
Flow Range of Cylinder Gases 0 to 200 cc/min – Optional Ranges: 0 to 50 cc/min; 0 to 100 cc/min
Zero Air Required 10 SLPM @ 30 psi – Optional: 20 SLPM @ 30 psi
Input Pressure 20 to 40 psig
AC Power
Rating
Typical Power Consumption
100-240 V~ 50/60 Hz, 1.5 A
115 V: 76 W 230 V: 80 W
Analog Outputs
1 user configurable output
Analog Output Ranges
10V, 5V, 1V, 0.1V (selectable)
Analog Output Resolution
1 part in 4096 of selected full-scale voltage (12 bit)
Standard I/O
1 Ethernet: 10/100Base-T
2 RS-232 (300 – 115,200 baud)
2 USB device ports
12 digital control outputs
12 digital control inputs
8 digital status outputs
Optional I/O
1 USB com port
1 RS485
Multidrop RS232
Operating Temperature Range
5-40ºC
Humidity Range
0 - 95% RH, non-condensing

18 083730750B DCN8606
PARAMETER
SPECIFICATION
Environmental Conditions
Installation Category (Over Voltage Category ) II
Pollution Degree 2
Intended for Indoor Use Only at Altitudes
≤
2000m
Dimensions (H x W x D)
9” x 17” x 21” (229 mm x 432 mm x 533 mm)
Weight
46.6 lbs (21.14 kg) 3-MFC
45.1 lbs (20.46 kg) 2-MFC
Table 1-4. T750U GPT and Option Specifications
PARAMETER
SPECIFICATION
T750U NO
2
Generation (GPT Modes)
Minimum Output 20 ppb SLPM
Minimum Concentration: 3 ppb
Precision ±2.0% (with GPTPS)
T750U Ozone Generator Option
Maximum Output 5.5 ppm SLPM
Minimum Output 20 ppb SLPM
Minimum Ozone Concentration 3 ppb
Response Time 180 seconds to 98%
Optical Feedback Standard
T750U UV Photometer Option
Range 100 ppb to 10 ppm (selectable)
Precision 1.0 ppb
Linearity 1.0% of reading
Rise/Fall Time <20 seconds (photometer response)
Response Time 180 seconds to 95% (system response)
Zero Drift <1.0 ppb / 24 hours
1.3. COMPLIANCE AND CERTIFICATIONS
This product is CE compliant and adheres to the Low Voltage and ElectroMagnetic
Compatibility directives.
For any other certifications, please refer to this product’s specifications sheet on our
website.