Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Summary of Contents for PST MICHELL Instruments ADG400
- Page 1 ADG400 Advanced Dew-Point Generator User Manual 99998 Issue 1 November 2022...
- Page 2 Please fill out the form(s) below for each instrument that has been purchased. Use this information when contacting Michell Instruments for service purposes. Product Name Order Code Serial Number Invoice Date Installation Location Tag Number Product Name Order Code Serial Number Invoice Date Installation Location Tag Number...
- Page 3 ADG400 For Michell Instruments' contact information please go to www.michell.com © 2022 Michell Instruments This document is the property of Michell Instruments Ltd and may not be copied or otherwise reproduced, communicated in any way to third parties, nor stored in any Data Processing System without the express written authorization of Michell Instruments Ltd.
-
Page 4: Table Of Contents
ADG400 User Manual Contents Safety ..........................vi Electrical Safety ......................vii Pressure Safety ......................vii Hazardous Materials (WEEE, RoHS3 & REACH) ..............vii Safe Handling ......................vii Repair and Maintenance ....................vii Safety Conformity .......................vii Abbreviations ........................viii INTRODUCTION ....................1 Features ......................1 Theory of Operation ................... 2 INSTALLATION ....................3 Unpacking the Instrument ................... - Page 5 ADG400 User Manual Tables Table 1 Minimum Stabilization Times ................6 Table 3 Read Command Response Explanation ............11 Table 2 Supported Serial Commands ..............11 Table 4 Span of Installed MFCs ................16 Figures Figure 1 Typical Setup Diagram ................4 Figure 2 Manual Mode .....................7 Figure 3...
-
Page 6: Safety
ADG400 User Manual Safety The instrument is designed to be completely safe when installed and operated correctly in accordance with the information provided in this manual. This manual contains all the required information to install, operate and maintain this product. Prior to installation and use of this product, this entire manual should be read and understood. -
Page 7: Electrical Safety
ADG400 User Manual Electrical Safety Ensure electrical safety is complied with by following the directions provided here and observing all local operation & installation requirements at the intended location of use. This product is completely safe when using any options and accessories supplied by the manufacturer of this product for use with it. -
Page 8: Abbreviations
ADG400 User Manual Abbreviations The following abbreviations are used in this manual: barg pressure unit (=100 kP or 0.987 atm) (bar gauge) °C degrees Celsius °F degrees Fahrenheit direct current grams inch(es) µm micrometer m/sec meters per second milliampere millimetres megapascal Nl/min normal liters per minute... -
Page 9: Introduction
ADG400 User Manual INTRODUCTION INTRODUCTION The ADG400 is designed for use as part of a hygrometry calibration system. It is capable of repeatable generation of dew points across a range of -80 °C...+20 °C, when used in conjunction with the Michell Instruments PSD2 pressure swing dryer. The generator is based on the volumetric mixing of dry and wet gases. -
Page 10: Theory Of Operation
ADG400 User Manual INTRODUCTION Theory of Operation Dried air is supplied to the ADG – some of this dry air is used as-is for mixing, and some is diverted through the two saturators. Each saturator is filled with distilled or demineralized water, and the dry air stream is bubbled through this water via a sintered nozzle, which creates a stream of wet air that can be used for mixing. -
Page 11: Installation
If replacing an existing dew-point generator connected to a PSD2, the internal pressure regulator of the PSD2 MUST be adjusted to 2.0 barg (29.0 psig), otherwise the ADG400 will not function. Refer to the latest PSD2 manual from the PST website (www. processsensing.com) for instructions on how to perform this adjustment. -
Page 12: Gas Connections
ADG400 User Manual INSTALLATION Gas Connections The gas inlet and outlet connections are Swagelok® 6 mm stainless-steel bulkhead GAS IN GAS OUT union tube fittings, located on the rear panel of the unit marked Typical Setup The ADG should be used in conjunction with a Michell Chilled Mirror Reference Instrument. A complete system would usually include: •... -
Page 13: Operation
ADG400 User Manual OPERATION OPERATION It is recommended to familiarize yourself with the installation, operation and maintenance sections of this manual before using the product for the first time. First-time Operation Before using the instrument for the first time, the following steps should be taken. Install the electrical and gas connections as per the instructions in Section 2, Installation . -
Page 14: Hmi
ADG400 User Manual OPERATION A typical calibration to -80 °Cfp, for the Michell Instruments Easidew, would use the following timings: Set Point Minimum Stabilization Time (°C Dew/Frost Point) DRYER 48 hours 12 hours 8 hours 4 hours 2 hours 1 hour 1 hour 1 hour 1 hour... -
Page 15: Main Screen
ADG400 User Manual OPERATION Main Screen Figure 2 Manual Mode Figure 3 Profile Mode Item Description Indicates currently selected set point in all modes. The indicator to the far right shows if the selected set point is from: Standard Table Set Point User Table Pressing the button will bring up the Set Point selection screen in... -
Page 16: Modes Of Operation
ADG400 User Manual OPERATION Modes of Operation The modes of operations are: • Manual mode: change set points by button press • Profile mode: set points change automatically after a predetermined time • Remote mode: set points are changed by serial command from a PC (for software integration) •... -
Page 17: 3.6.1.1 Set Point Picker
ADG400 User Manual OPERATION 3.6.1.1 Set Point Picker This is used to change the set point in Manual mode. Item Description Arrow Buttons < > Change the desired set point. Standard Table / Select a new set point from the displayed table. This is only User Table Button visible if the user-defined set points have been created. -
Page 18: Remote Mode
ADG400 User Manual OPERATION Figure 7 Profile Selection Screen Selecting one of the profile presets will start the profile and return to the Main screen. Back Pressing the button will lead back to the Main screen, leaving the ADG in Manual mode. -
Page 19: 3.6.3.1 Remote Mode Commands
Table 3 Commands must be sent as a complete string and cannot by typed in letter by letter using a terminal program. Please contact your PST representative for an example software project, showing how to implement the communications protocol. Michell Instruments... -
Page 20: Remote Access
ADG400 User Manual OPERATION 3.6.4 Remote Access The ADG can be controlled from a PC, providing full access to the user interface in a desktop window, as shown below. Note: this cannot be used in conjunction with Remote mode, which relies on the same serial port over USB connection. Figure 9 Main Screen Shown on a PC via Remote Access Software 3.6.5... -
Page 21: Status Page
ADG400 User Manual OPERATION 3.6.6 Status Page Entering the status page will pause a running profile. This prevents a "Read MFCs" operation conflicting with an automatic change in set point. Item Description Illuminated green when Transition Delay mode is active. A description TD Indicator of this feature follows this table. -
Page 22: 3.6.6.1 Transition Delay
ADG400 User Manual OPERATION 3.6.6.1 Transition Delay When changing from full dry (Dryer mode) to a 2-stage set point, there is a 2-minute delay before the MFC5 wet flow set point is selected to allow the upstream pipework to be purged. This is reflected by the target/set point of MFC5 on the status screen being set to 0, and the TD indicator being illuminated. -
Page 23: Set Point Editor
ADG400 User Manual OPERATION 3.6.8 Set Point Editor The set point editor allows the factory set points to be adjusted, and new user set points to be defined. Item Description S1Dry Stage 1 dry flow MFC Sat(C) Stage 1 wet flow MFC (coarse adjustment) Sat(F) Stage 1 wet flow MFC (fine adjustment) S2Dry... -
Page 24: 3.6.8.1 Converting Mfc Values To Ml/Min Flow Rates
ADG400 User Manual OPERATION 3.6.8.1 Converting MFC Values to ml/min Flow Rates MFC Name Span (cc/min) S1Dry 5000 Sat(C) 1000 Sat(F) S2Dry 5000 S2Wet Span of Installed MFCs Table 4 MFC values are stored in the range of 0...32000. At 0 the MFC is fully closed and will not let-by gas. At 32000 the MFC is fully open and will be set to its maximum flow rate. -
Page 25: Profile Editor
ADG400 User Manual OPERATION 3.6.9 Profile Editor The profile editor allows automatic calibration profiles to be defined. Item Description Changes between profile points Sequence Arrows Saves current profile point settings Opens the set-point picker to select a set point from a user or Set point standard table Duration... -
Page 26: 3.6.10 Saturator Filling Mode
ADG400 User Manual OPERATION 3.6.10 Saturator Filling Mode It is necessary to use the saturator filling mode when adding water to the saturators. Item Description Begin de-pressurization of saturators and water traps to allow them to Start be filled. Stop Begin re-pressurization of saturators and water traps after filling. -
Page 27: Saturator Filling Instructions
ADG400 User Manual OPERATION 3.6.10.1 Saturator Filling Instructions Press the Start Filling button before opening the door. Wait for the internal BPR pressure gauge to read 0. Remove the saturator filling nuts and fill saturators to the correct water level. Stop Securely refit the saturator filling nuts, close the door and press Filling... -
Page 28: Maintenance
ADG400 User Manual MAINTENANCE MAINTENANCE Maintenance must only be carried out by a trained electrical and pressure-competent engineer. Before commencing any maintenance operations: Isolate the gas supply. Completely depressurize the saturators and internal pipework. Isolate the power supply. After maintenance: Restore the gas supply. -
Page 29: General Troubleshooting
ADG400 User Manual MAINTENANCE General Troubleshooting Symptom Action Power switches on, but the screen is The screensaver is running – touch the off/dim screen. Saturators not bubbling Run the saturator filling procedure to equalize Water spread between water trap and the pressure in the saturators. -
Page 30: Emptying The Saturators For Transport
ADG400 User Manual CALIBRATION Emptying the Saturators for Transport Before transportation, the saturators must be emptied of water. Figure 17 ADG400 Internal View Switch off the ADG400. Open the front panel. Wait until the BPR gauge reads 0 barg (0 psig) and the saturators stop bubbling before proceeding. - Page 31 ADG400 User Manual APPENDIX A Appendix A Technical Specifications Michell Instruments...
-
Page 32: Appendix A Technical Specifications
ADG400 User Manual APPENDIX A Appendix A Technical Specifications Performance Output Range -80...+20 ℃ dew point Output Stability < 0.05 °C Repeatability < 0.5 °C Full-color touch screen 11-point factory setup set-point table @ 10 °C intervals. Set Points 13-point user configurable set-point table Operating Modes Manual, Timed Profile, Remote Command Electrical Specifications... -
Page 33: Dimensions
ADG400 User Manual APPENDIX A Dimensions Michell Instruments... - Page 34 ADG400 User Manual APPENDIX B Appendix B Quality, Recycling, Compliance & Warranty Information 99998 Issue 1, November 2022...
-
Page 35: Appendix B Quality, Recycling, Compliance & Warranty Information
ADG400 User Manual APPENDIX B Appendix B Quality, Recycling, Compliance & Warranty Information Michell Instruments is dedicated to complying to all relevant legislation and directives. Full information can be found on our website at: www.michell.com/compliance This page contains information on the following directives: •... - Page 36 ADG400 User Manual APPENDIX C Appendix C Return Document & Decontamination Declaration 99998 Issue 1, November 2022...
-
Page 37: Appendix C Return Document & Decontamination Declaration
ADG400 User Manual APPENDIX C Appendix C Return Document & Decontamination Declaration Decontamination Certificate IMPORTANT NOTE: Please complete this form prior to this instrument, or any components, leaving your site and being returned to us, or, where applicable, prior to any work being carried out by a Michell engineer at your site. - Page 38 www.ProcessSensing.com http://www.michell.com...
Need help?
Do you have a question about the MICHELL Instruments ADG400 and is the answer not in the manual?
Questions and answers