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Summary of Contents for PST MICHELL Instruments Easidew PDP Dryer Portable
- Page 1 Easidew PDP Dryer Portable Hygrometer User Manual 97122 Issue 1 January 2024...
- 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 Easidew PDP Dryer Portable Hygrometer For Michell Instruments' contact information please go to www.ProcessSensing.com © 2024 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.
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Page 4: Table Of Contents
Easidew PDP Dryer Portable User Manual Contents Safety ..........................vii Electrical Safety ......................vii Pressure Safety ......................vii Toxic Materials ......................vii Repair and Maintenance ....................vii Calibration ........................vii Safety Conformity .......................vii Abbreviations ........................viii Warnings .......................... viii INTRODUCTION ....................1 User Controls and Case Lid Layout ............... 2 Main Screen ....................... - Page 5 Easidew PDP Dryer Portable User Manual MAINTENANCE ....................22 Inlet Filter Maintenance and Replacement ............22 Moisture Sensor Maintenance and Replacement ..........23 Integral Battery Replacement ................23 SD Card Replacement ..................23 SHIPPING .......................24 Appendices Appendix A Technical Specifications ................28 Dimensions .................
- Page 6 Easidew PDP Dryer Portable User Manual This page has been left blank intentionally. 99002 Issue 1 January 2024...
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Page 7: Safety
Easidew PDP Dryer Portable User Manual Safety The manufacturer has designed this equipment to be safe when operated using the procedures detailed in this manual. The user must not use this equipment for any other purpose than that stated. Do not apply values greater than the maximum value stated. This manual contains operating and safety instructions, which must be followed to ensure the safe operation and to maintain the equipment in a safe condition. -
Page 8: Abbreviations
Easidew PDP Dryer Portable User Manual Abbreviations The following abbreviations are used in this manual: alternating current pressure unit (atmosphere) barg pressure unit (=100 kP or 0.987 atm) gauge °C degrees Celsius °F degrees Fahrenheit direct current Hertz kilogram(s) pound Nl/min liters per minute meter(s) -
Page 9: Introduction
Easidew PDP Dryer Portable User Manual INTRODUCTION INTRODUCTION Moisture spot checking at the pressurized outlet of a gas dryer is crucial for ensuring the quality of compressed gas. The Easidew PDP Dryer Portable hygrometer monitors and logs key parameters like dew point, pressure and temperature in real time. It is compliant with ISO 8573-1 and effectively controls moisture contamination. -
Page 10: User Controls And Case Lid Layout
Easidew PDP Dryer Portable User Manual INTRODUCTION User Controls and Case Lid Layout The user controls and indicators associated with the Easidew PDP Portable are located on the front panel of the instrument and are explained below. Figure 2 User Controls and Case Lid Layout 99002 Issue 1 January 2024... -
Page 11: Main Screen
Easidew PDP Dryer Portable User Manual INTRODUCTION Main Screen The HMI interface on the Easidew PDP Portable is simple and intuitive. Below is the main operating screen, which is used once the dryer test is set up and underway. A stylus pen is provided in the right-hand pouch in the case lid, to make touchscreen operation easy. -
Page 12: Service Panel
Easidew PDP Dryer Portable User Manual INTRODUCTION Service Panel Routine inlet filter maintenance, lithium-ion battery replacement and dew-point sensor replacement are all undertaken after removing the service panel. Before the service panel is removed, the portable must be deactivated and depressurized. The unit pressure rating is 20 barg and operator safety is paramount. -
Page 13: Pressurized (Pdp) Gas Portable Measurement System
Easidew PDP Dryer Portable User Manual INTRODUCTION Pressurized (PDP) Gas Portable Measurement System All compressed gas dryers that require a moisture spot check work at the gas line pressure. If the dryer has optional dew-point control for improved system efficiency, the installed dew-point sensor on the dryer outlet measures and controls the dryer outlet moisture at line pressure. -
Page 14: Installation
Easidew PDP Dryer Portable User Manual INSTALLATION INSTALLATION Safety It is essential that the installation of the electrical and gas supplies to this instrument are undertaken by qualified personnel. Unpacking the Instrument The Easidew PDP Portable is packed into a standard box. Unpack the unit and accessories carefully and save all the packing materials for the purpose of returning the instrument for re-calibration or any warranty claims. -
Page 15: Operational Requirements
Easidew PDP Dryer Portable User Manual INSTALLATION Operational Requirements Operational requirements are as follows: Moisture sensor flow rate: Recommended: 1...5 Nl/min Maximum: 15 Nl/min Pressure range: Up to 20 barg (290 psig) 2.4.1 Environmental Requirements – Easidew PDP Portable Operating temperature range: -20...+50 °C (-4...+122 °F) Storage temperature range: -40...+50 °C (-40...122 °F) -
Page 16: Inlet And Outlet Fittings
Easidew PDP Dryer Portable User Manual INSTALLATION 2.5.1 Inlet and Outlet Fittings HIGH PRESSURE! High pressure gases are potentially hazardous. Energy stored in these gases can be released suddenly and with extreme force. High pressure systems should be assembled and operated only by personnel who have been trained in proper safety practices. -
Page 17: Internal Battery Management
Easidew PDP Dryer Portable User Manual INSTALLATION Internal Battery Management A replacement battery must be of the same make and model to ensure compatibility and safety. Replace only with Ansmann Li-Ion 26650 Protected Type-C battery, otherwise SAFETY and compatibility will be affected. To avoid damaging the instrument, do not reverse the polarity. -
Page 18: Operation
Easidew PDP Dryer Portable User Manual OPERATION OPERATION High pressure gases are potentially hazardous. Energy stored in these gases can be released suddenly and with extreme force. High pressure systems should be assembled and operated only by people who have been trained in proper safety practices. POSSIBLE INJURY! The tubing, valves and other apparatus attached to this instrument must be adequate for the maximum pressure which will be applied, otherwise physical injury to the... -
Page 19: Dew-Point And Pressure Chart Plotting
Easidew PDP Dryer Portable User Manual OPERATION 3.2.2 Dew-Point and Pressure Chart Plotting When the graph/plot icon is pressed manually or auto-activated, the portable will chart Dew Point and Presssure against Time; this is displayed in a graph (see below). The graphing function is set up in the advanced menu shown in Section 3.2.11. -
Page 20: Dew-Point, Pressure, Temperature And Time & Date Logging Interval
Easidew PDP Dryer Portable User Manual OPERATION 3.2.4 Dew-Point, Pressure, Temperature and Time & Date Logging Interval The data log interval is selected before logging from a preset selection table, as shown below. Figure 11 Data Log Interval Selection Screen 3.2.5 Start Data Logging Setup Screen After the data log interval is selected, the screen shown below confirms the unique .txt... -
Page 21: Accessing The Advanced Menu Functions
Easidew PDP Dryer Portable User Manual OPERATION 3.2.6 Accessing the Advanced Menu Functions The advanced functionality and graphing function setup is accessed in the Advanced menu, which is reached by selecting the red padlock. Figure 13 Advanced Menu Access Screen 3.2.7 Security Code Protection for Advanced Menu To access the advanced menu, enter the security code 5618. -
Page 22: Advanced Menu Setup Screen
Easidew PDP Dryer Portable User Manual OPERATION 3.2.8 Advanced Menu Setup Screen Once the security code has been entered, you will have access to the advanced menu. Figure 15 Advanced Menu Setup Screen 3.2.9 Parameter Scaling The portable provides two Temperature and two Pressure scales. On the Parameter Scaling screen shown below, press the appropriate blue button to select the required scale. -
Page 23: 3.2.10 Display Brightness And Power Save
Easidew PDP Dryer Portable User Manual OPERATION 3.2.10 Display Brightness and Power Save The display consumes approximately 70 % of the power drain on the rechargeable battery. Careful selection of both the display brightness and display power saving will ensure the portable battery acheives the stated life of two working days. Once the unit is installed and logging on the outlet of the dryer, the display does not need to be set in continuous operation and will go into power saving mode (showing a blank screen), only being reactivated if the screen is touched. -
Page 24: 3.2.12 Battery Health Diagnostics
Easidew PDP Dryer Portable User Manual OPERATION 3.2.12 Battery Health Diagnostics The two screens below provide visual confirmation of the state of the internal rechargeable battery. Figure 19 Battery Health and Diagnostics Screens 3.2.13 Date/Time Screen The screen below allows the user to change the reference date and time set within the portable. -
Page 25: 3.2.14 Unit Firmware And Sensor Diagnostics
Easidew PDP Dryer Portable User Manual OPERATION 3.2.14 Unit Firmware and Sensor Diagnostics This screen confirms the firmware revision used within the portable. Figure 21 Unit Firmware and Sensor Diagnostics Data Logging Download The Easidew PDP Dryer Portable hygrometer monitors and logs key parameters like dew point, pressure and temperature in real time. -
Page 26: Good Measurement Practice
Easidew PDP Dryer Portable User Manual GOOD MEASUREMENT PRACTICE Ensuring reliable and accurate moisture measurements requires the correct sampling techniques, and a basic understanding of how water vapor behaves. This section aims to explain the common mistakes and how to avoid them. Sampling Materials –... - Page 27 Easidew PDP Dryer Portable User Manual Temperature and Pressure effects As the temperature or pressure of the environment fluctuates, water molecules are adsorbed and desorbed from the internal surfaces of the sample tubing, causing small fluctuations in the measured dew point. Adsorption is the adhesion of atoms, ions, or molecules from a gas, liquid, or dissolved solid to the surface of a material, creating a film.
- Page 28 Easidew PDP Dryer Portable User Manual • Accentuate adsorption and desorption effects on the gas passing through the sampling system. • Allow pockets of wet gas to remain undisturbed in a complex sampling system, which will then gradually be released into the sample flow. •...
- Page 29 Easidew PDP Dryer Portable User Manual Flow Rates Theoretically flow rate has no direct effect on the measured moisture content, but in practice it can have unanticipated effects on response speed and accuracy. The optimal flow rate varies depending on the measurement technology, and can always be found in the instrument or sensor manual.
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Page 30: Maintenance
Easidew PDP Dryer Portable User Manual MAINTENANCE MAINTENANCE All field maintenance outlined in this section is undertaken by removing the service panel to access the replaceable parts. See figure below. Figure 23 Service Panel Removed Inlet Filter Maintenance and Replacement In any gas treatment system, good upstream filtration from the measurement sensors is recommended. -
Page 31: Moisture Sensor Maintenance And Replacement
Easidew PDP Dryer Portable User Manual MAINTENANCE Moisture Sensor Maintenance and Replacement To change the dew-point sensor, follow the steps below: Ensure the portable is switched off and depressurized. Disconnect the M12 electrical cable connector at the back of the dew- point sensor. -
Page 32: Shipping
Easidew PDP Dryer Portable User Manual SHIPPING SHIPPING For shipping purposes, the instrument should be packed in its original carton, which will provide the recommended degree of protection during transit. To prepare the instrument for shipping, proceed as follows: Switch the instrument off and remove any connections to the Gas In and Gas Out ports and any external sensors connected to it. -
Page 33: Appendix A Technical Specifications
Easidew PDP Dryer Portable User Manual APPENDIX A Appendix A Technical Specifications Michell Instruments... - Page 34 Easidew PDP Dryer Portable User Manual APPENDIX A Appendix A Technical Specifications Product EA-PDP-B1 EA-PDP-B2 Performance Specifications Michell ceramic metal-oxide moisture sensor Michell advanced thick-film fast-response dew-point Measurement Technology sensor Dew-Point Sensor Model Easidew EA2-TX-M12 SF82-TX-M12 ISO 8573-1 Moisture Air Quality Class 1 to Class 4 Class 2 to Class 4 Class Compliant...
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Page 35: Dimensions
Easidew PDP Dryer Portable User Manual APPENDIX A Dimensions Case Open (approx.) Case Closed Michell Instruments... - Page 36 Easidew PDP Dryer Portable User Manual APPENDIX B Appendix B Quality, Recycling & Warranty Information 99002 Issue 1 January 2024...
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Page 37: Appendix B Quality, Recycling, Compliance & Warranty Information
Easidew PDP Dryer Portable 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.ProcessSensing.com/en-us/compliance/ This page contains information on the following directives: •... -
Page 38: Appendix C Return Document & Decontamination Declaration
Easidew PDP Dryer Portable User Manual APPENDIX C Appendix C Return Document & Decontamination Declaration 99002 Issue 1 January 2024... - Page 39 Easidew PDP Dryer Portable 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 40 www.ProcessSensing.com...
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