Thermo Scientific EPD TruDose G User Handbook Manual
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Thermo Scientific EPD TruDose G User Handbook Manual

Thermo Scientific EPD TruDose G User Handbook Manual

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Thermo Scientific
EPD TruDose G
EPD TruDose BG
EPD TruDose NG
User Handbook
Version 1.5.0
43100/1001-20•January 2021

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  • Page 1 Thermo Scientific EPD TruDose G EPD TruDose BG EPD TruDose NG User Handbook Version 1.5.0 43100/1001-20•January 2021...
  • Page 2 © 2020 Thermo Fisher Scientific Inc. All rights reserved. Thermo Fisher Scientific Inc. provides this document to its customers with a product purchase to use in the product operation. This document is copyright protected and any reproduction of the whole or any part of this document is strictly prohibited, except with the written authorization of Thermo Fisher Scientific Inc.

  • Page 3: Weee Directive

    IMPORTANT This recycling program is not for biological hazard products or for products that have been medically contaminated. You must treat these types of products as biohazard waste and dispose of them in accordance with your local regulations. Thermo Scientific EPDTruDose User Handbook iii...

  • Page 4: Directive Deee

    Directive DEEE 2012/19/EU Thermo Fisher Scientific s'est associé avec une ou plusieurs sociétés de recyclage dans chaque état membre de l’Union Européenne et ce produit devrait être collecté ou recyclé par celle(s)-ci. Pour davantage d'informations, rendez-vous sur la page: https://www.thermofisher.com/us/en/home/industrial/environmental/environmental-learning-center/environmental- resource-library/epm-weee-compliance.html WEEE Direktive 2012/19/EU...

  • Page 5: Table Of Contents

    Configurable Alarm Characteristics ..................25 Muting the Alarm ........................27 Display Configurations ........................28 EPD Menu Display Navigation ....................28 Default Display ......................... 28 Quick Access ........................... 29 Pin Screen to Current Display ....................29 Thermo Scientific EPDTruDose User Handbook...
  • Page 6 Responder Mode ........................73 Pulsed Mode ..........................74 Deep Sleep ..........................74 EPD TruDose Communications via IR Link .................. 74 Communicating with the EPD ....................75 EPD Configuration via the IR Communications Link .............. 77 EPDTruDose User Handbook Thermo Scientific...
  • Page 7 EPD Faults ........................... 102 Recovery Procedures ........................103 Logging Faults / Extracting Data .................... 103 Clearing faults ......................... 103 EPD Displayed Fault Codes....................104 Other EPD Faults ......................... 106 Glossary ........................110 Index........................... 114 Thermo Scientific EPDTruDose User Handbook vii...
  • Page 8 Contents Blank page viii EPDTruDose User Handbook Thermo Scientific...
  • Page 9 Radiological Performance for pulsed Radiation Industrial X-Ray, Pulse Width < 1 µs . 95 Table 25C. Table 26. Environmental Specifications ..................96 Table 27. Fault Codes ......................104 Table 27. Fault Codes ......................105 Table 28. Faults associated with EPD Hardware ................. 106 Thermo Scientific EPDTruDose User Handbook ix...
  • Page 10 Tables Blank page EPDTruDose User Handbook Thermo Scientific...
  • Page 11 Stay Time Remaining / Return for Read Display ............. 41 Figure 36. Dose Margin Used Display ..................42 Figure 37. Dose and Dose Rate Warning and Alarm Threshold Displays ......... 43 Figure 38. Wearer Name Display ....................44 Thermo Scientific EPDTruDose User Handbook xi...
  • Page 12 Figure 64. Chirp Example ......................67 Figure 65. EPD Communications range for Desktop Reader Dongle ........76 Figure 66. Desktop Reader showing TruDose EPD in nest ............76 Figure 67. Fault Code Display ....................104 EPDTruDose User Handbook Thermo Scientific...

  • Page 13: Preface

    Appendix A, “Technical Description” • Appendix B, “Physical Characteristics of the EPD” • Appendix C, “Radiological Specifications” • Appendix D, “Environmental Specifications” • Appendix E, “In Built Integrity Checks” • Appendix F, “EPD Faults and Recovery Actions” Thermo Scientific EPDTruDose User Handbook xiii...

  • Page 14: Related Documentation

    Preface Related Documentation The following table lists Thermo Scientific Handbooks related to the use of the EPD TruDose™: • EasyEPD3 User Handbook 43100/1060-04 • Desktop Reader User Handbook 43600/1050-04 • The software also provides Help. Manual Revision History Version Date...

  • Page 15: Safety And Special Notices

    27 Forge Parkway Franklin, MA 02038-3135 Phone +49 9131 998-0 Support Fax +49 9131 998 475 E-mail info.rmp.erlangen@thermofisher.com www.thermofisher.com Address Thermo Fisher Scientific Messtechnik GmbH Frauenauracher Strasse 96 P.O. Box 16 60 D-91056 Erlangen, Germany Thermo Scientific EPDTruDose User Handbook xv...
  • Page 16 7th floor, West Tower, Yonghe Plaza, No. 28 Andingmen East Street Beijing, China Phone +8621-68654588 Support Fax +8621-64457909 Hotline 800-810-5118 (Toll free) Address Shanghai Depot, EID, Thermo Fisher Scientific Building 6, No. 27 Oin Jinqiao Rd Shanghai, China EPDTruDose User Handbook Thermo Scientific...

  • Page 17: Chapter 1 Introduction To Epd Trudose

    EPD has received. Radiation that is detected by the EPD is processed to give an indication of Dose and Dose Rates. This information is displayed to the user via an LCD display on the top of the EPD (see “LCD Display” page 36). “Detectors and Processing” page 64 for further information. Thermo Scientific EPDTruDose User Handbook...

  • Page 18: Epd Identity Data

    Dose Display Units Dose Display can be set to Sievert or REM. See “User Interface” page 82 for further information. Note: This manual deals with Sievert (Sv) throughout. To convert to REM, multiply all values by 100. EPDTruDose User Handbook Thermo Scientific...
  • Page 19 Introduction to EPD TruDose™ Thermo Scientific EPDTruDose User Handbook...

  • Page 20: Epd Measurement Quantities

    Stay Time Remaining and Return For Read Alarm use the same / Return For Read LCD Display. (see “Stay Time Remaining / Return for Read” page 41). “Physical Characteristics of the EPD” page 84 for further information. EPDTruDose User Handbook Thermo Scientific...

  • Page 21: External Features Of The Epd

    The complete assembly is engineered to house functional and operation components as shown in Figure 1 Figure 2. External features are described in Table Figure 3 shows a simplified drawing of the EPD indicating the Detector Centers. Thermo Scientific EPDTruDose User Handbook...

  • Page 22: Figure 1. Front View Of The Epd

    Note: The EPD TruDose-G is similar except the beta window is replaced by a plastic dome. Figure 2. Rear View of The EPD Other Label (Approvals) Space for Customer Label Alternative Lanyard Fixing Clip Assembly Lanyard Fixing EPD Identity Label Battery Screws Lanyard Fixing Specification Label EPDTruDose User Handbook Thermo Scientific...

  • Page 23: Table 4. Epd External Features

    These buttons provide a user interface for EPD control, alarm Buttons acknowledgment and LCD display selection. “Select and Navigate Buttons” page Detector Markings The Detector Markings will indicate the EPD Type as follows: βγ • - Beta/Gamma unit γ • - Gamma- only unit Thermo Scientific EPDTruDose User Handbook...
  • Page 24 Battery Screws Battery Screws to attach the Battery Compartment. These are “captive” screws - so should not be lost. “EPD Battery Installation” page Detectors SG, FB and HG Detectors. “Detectors and Processing” page 64 EPDTruDose User Handbook Thermo Scientific...
  • Page 25 Introduction to EPD TruDose™ Thermo Scientific EPDTruDose User Handbook...

  • Page 26: Chapter 2 Getting Started With Epd Trudose

    The clip assembly comprises a clip (moving part), custom steel spring and fixing screw, which allows the user to attach the EPD to an outer garment. See “Wearing an EPD” page 17 more information. Thermo Scientific EPDTruDose User Handbook 10...

  • Page 27: Figure 4. Rear Clip Assembly

    “EPD Lanyard Assembly (if required)”) on page 12 below). Figure 4. Rear Clip Assembly The case back is flat when the clip is not fitted as shown in Figure Figure 5. Rear Clip not fitted Thermo Scientific EPDTruDose User Handbook 11...

  • Page 28: Epd Lanyard Assembly (If Required)

    The EPD lanyard allows the user to wear the EPD around their neck. See “Wearing an EPD” page 17 for more information. Note that the lanyard has an emergency release mechanism at the back of the neck that will separate the lanyard in case of entrapment. EPDTruDose User Handbook Thermo Scientific...

  • Page 29: Figure 8. Attaching The Lanyard

    Figure 8. Attaching the Lanyard 2. Clip the Lanyard together. Figure 9. Completed Lanyard To remove a Lanyard from the EPD ❖ 1. Unclip the Lanyard and unloop the “string” end from the fixing. Thermo Scientific EPDTruDose User Handbook 13...

  • Page 30: Epd Battery Installation

    A recess at either side of the hatch allows a finger nail or small flat- blade screwdriver to be used to pop the hatch as shown in Figure 11. Reminder: Loosen screws prior to opening. EPDTruDose User Handbook Thermo Scientific...

  • Page 31: Figure 11. Housing Recess

    13. If the battery is inserted incorrectly, moulding features prevent connection and thus avoid possible damage to the EPD electronics. 7. If the battery is fitted cleanly and contact is given, the software initialization process starts immediately. Thermo Scientific EPDTruDose User Handbook 15...

  • Page 32: Figure 13. Battery Area Markings

    Do not overtighten, it should only be necessary to bring the hatch down flush with the case front. 9. Screw the two M2 (or security) screws to secure the hatch as shown in Figure Following fitment of a battery, the EPD will begin a Confidence Test (see “ EPDTruDose User Handbook Thermo Scientific...

  • Page 33: Wearing An Epd

    The same applies if an EPD is worn inside a divers suit close to the body. Figure 15. EPD worn outside breast pocket (using Rear Clip) Thermo Scientific EPDTruDose User Handbook 17...

  • Page 34: Figure 16. Epd Worn Inside Breast Pocket (Using Font Clip) Not Suggested For Bg Units

    Figure 16. EPD worn inside breast pocket (using Font Clip) not suggested for BG units “Front Clip Assembly” page 12 for more information Figure 17. EPD worn on belt (using Rear Clip) Figure 18. EPD worn on lanyard around the neck EPDTruDose User Handbook Thermo Scientific...
  • Page 35 Getting Started with EPD TruDose™ Thermo Scientific EPDTruDose User Handbook 19...

  • Page 36: Chapter 3 Operating Instructions For Epd Trudose

    The buttons are tactile membrane keys that provide a click to the user. Almost all functionality is accessed using simple Short-Click button presses. Defined as a press and release, where the period that the button is pressed for is between 200 ms and 2 seconds. Thermo Scientific EPDTruDose User Handbook 20...

  • Page 37: Navigating Through The Menu Options

    Default Display and Alarm Notification immediately. This allows the user to respond to the alarm before reentering the menu navigation to resume the previous task (see “Muting the Alarm” page 27). “EPD Menu Navigation Displays” page 32 for a full list of Menu options. Thermo Scientific EPDTruDose User Handbook 21...

  • Page 38: Button Operation During Off/On Mode

    “Comms Active Prompt” page 49 b) Backlight On, see “Operation of the Backlight” page 24 c) Turn On Prompt, see “EPD ON” page 49 d) Power Saving Mode, see “On and Off Operating Modes” page 71 EPDTruDose User Handbook Thermo Scientific...

  • Page 39: During Epd On Mode

    On completion of the start-up sequence or Confidence Test (see “Run Confidence Test” page 47), the Default Display will appear (see “Default Display” page 28). For more information, see “LCD Display for the EPD TruDose™” on page Thermo Scientific EPDTruDose User Handbook 23...

  • Page 40: Operation Of The Backlight

    LCD will remain until the condition is normalized. The Sounder can be configured for a more quiet operation, for example, in office or hospital environments. The EPD can be configured into Covert Mode, which will automatically disable the Alarm Indicators, see “Covert Mode” page 73 for further information. EPDTruDose User Handbook Thermo Scientific...

  • Page 41: Configurable Alarm Characteristics

    “Muting the Alarm” page 27). • Alarms are cleared via the IR Communications links (see “EPD Configuration via the IR Communications Link” page 77). • A self-cancelling condition de-activates the alarm (e.g. falling Dose Rate). Thermo Scientific EPDTruDose User Handbook 25...

  • Page 42: Table 6. Alarm Types

    Light Green = Low Tone (Enabled/Quiet/Loud) Light Red = LED (Enabled/Dim/Bright) Blue = Vibe (if enabled) The borders represent one second boundaries, e.g. “Continuous Dual Slow” represents one second High Tone alternating one second Low Tone EPDTruDose User Handbook Thermo Scientific...

  • Page 43: Muting The Alarm

    If Alarm Muting is enabled for any of the currently active alarms, the action of the buttons is as shown in Figure Figure 23. Mutable Alarms Active Default Display Alarm Sounds Alarms or Warnings? Mutable Alarms? “Mute?” Prompt Mute all Mutable Alarms Key: Select button Navigate button OR 2 sec Timeout Thermo Scientific EPDTruDose User Handbook 27...

  • Page 44: Display Configurations

    The Default Display can also be changed by the customer after delivery using the IR Communications link (see “EPD Configuration via the IR Communications Link” page 77). Only measurement displays can be assigned as the Default Display (see “Measurement Displays” page 38). EPDTruDose User Handbook Thermo Scientific...

  • Page 45: Quick Access

    When Pin is selectable, the action of the buttons is as show in Figure Figure 25. Display Pinning Pin ? Pinned Display Temporary Display Default Display Key: Default Timeout Select button Select OR Navigate button Navigate button OR 2 sec Timeout Thermo Scientific EPDTruDose User Handbook 29...

  • Page 46: Figure 26. Pin Display

    Pinned Display Note: In example above, the display is pinned on the Hp10 Dose Rate display. 4. If Navigate is pressed (or once the 2 second timeout occurs), then the display reverts to the Default Display. EPDTruDose User Handbook Thermo Scientific...
  • Page 47 Operating Instructions for the EPD TruDose™ Thermo Scientific EPDTruDose User Handbook 31...

  • Page 48: Chapter 4 Lcd Display For The Epd Trudose

    EPD has been configured. If all the displays in a sub-menu are disabled, then the corresponding entry in the top level menu will also be disabled. See “EPD Configuration via the IR Communications Link” page Thermo Scientific EPDTruDose User Handbook 32...

  • Page 49: Table 7. Epd Displays

    “Stay Time Remaining / Return for Read” Return for Read page 41 Dose Margin Used “Dose Margin Used” page 42 Diagnostics Display Voltages “Voltages” page 46 Display Counter “Counters” page 46 Display EPD Version “EPD Firmware Version Information” page Thermo Scientific EPDTruDose User Handbook 33...
  • Page 50 Test” page 47 Alarm Test “Alarm Test” page 47 Active Alarms “Alarm Notification” page 52 Active Warnings “Warning Notification” page 52 Active Overrange “Overrange Alarm Notification” page 53 Critical Fault “Critical Failure Notification” page 53 EPDTruDose User Handbook Thermo Scientific...

  • Page 51: Figure 28. Display Navigation

    Navigates to Default Display Remains on current display Navigates to Operations Menu Display Action confirmation required: Back Navigates to top menu of section Performs Action Navigates to first display of section Remains on current display Thermo Scientific EPDTruDose User Handbook 35...

  • Page 52: Lcd Display

    NOTE If the Alarm indicator is active, the Warning indication is not shown. Latched but Inactive Alarm “!” in Warning Triangle Note that this icon changes to a warning triangle if there is a radio failure EPDTruDose User Handbook Thermo Scientific...
  • Page 53 • Display Units (Sv or rem) • μSv inhibit (Doses shown in Sv and mSv only) • Limit to 2 Decimal Points • Show Trailing Zeros “User Interface” page 82 for further information. Thermo Scientific EPDTruDose User Handbook 37...

  • Page 54: Display Types

    Only Measurement Displays will be capable of being configured to be the Default Display (see “Default Display” page 28). Only Measurement Displays can be Pinned as the Current Display (see “Pin Screen to Current Display” page 29). EPDTruDose User Handbook Thermo Scientific...

  • Page 55: Figure 30. Dose Displays

    29), press Navigate until measurement quantity Dose is displayed. 3. Otherwise, Navigate or Select to Menu > Select > Navigate to measurement quantity > Select > Navigate to Triggered Dose Figure 31. Triggered Dose Display Thermo Scientific EPDTruDose User Handbook 39...

  • Page 56: Figure 32. Dose Rate Display

    29), press Navigate until measurement quantity Total Dose is displayed. 3. Otherwise, Navigate or Select to Menu > Select > Navigate to measurement quantity > Select > Navigate to Total Dose Figure 33 Total Dose Display EPDTruDose User Handbook Thermo Scientific...

  • Page 57: Figure 34. Peak Dose Rate Display

    3. Otherwise, Navigate or Select to Menu > Select > Navigate to Remaining > Select > Navigate to Stay Time Remaining / Return for Read. Figure 35. Stay Time Remaining / Return for Read Display Thermo Scientific EPDTruDose User Handbook 41...

  • Page 58: Static Data Displays

    To display Dose/Dose Rate Warning/Alarm Thresholds ❖ 1. Navigate or Select to Menu > Select > Navigate to measurement quantity > Select > Navigate to Dose Alarm Threshold, Dose Rate Alarm Threshold, Dose Warning Threshold or Dose Rate Warning Threshold EPDTruDose User Handbook Thermo Scientific...

  • Page 59: Figure 37. Dose And Dose Rate Warning And Alarm Threshold Displays

    To display Wearer Name ❖ 1. Navigate or Select to Menu > Select > Navigate to Assignment > Select > Navigate to Wearer Name. The minimum information to issue an EPD is Wearer Primary ID Thermo Scientific EPDTruDose User Handbook 43...

  • Page 60: Figure 38. Wearer Name Display

    80 for more information. To display Issued State and Wearer ID ❖ 1. Navigate or Select to Menu > Select > Navigate to Assignment > Select > Navigate to Issue State and Wearer ID. EPDTruDose User Handbook Thermo Scientific...

  • Page 61: Figure 40. Issued State And Wearer Id Display

    Task ID or number that is being displayed. To display Task ID ❖ 1. Navigate or Select to Menu > Select > Navigate to Assignment > Select > Navigate to Task Figure 42. Task ID Display Thermo Scientific EPDTruDose User Handbook 45...

  • Page 62: Figure 43. Voltages Display

    AB47 information: • EPD Part Number (PN) • EPD Serial Number (SN) • EPD Mark Number (MK) • PCB Part Number (PC PN) • PCB Serial Number (PCB SN) • FEM Serial Number (FEM SN) EPDTruDose User Handbook Thermo Scientific...

  • Page 63: Figure 46. Calibration Due Date Display

    “Action Confirmation” page 49). Then toggle through the following alarms by pressing Navigate. Each Alarm will sound and vibrate for 10 seconds according to it settings. Pressing Navigate button within the 10 seconds moves Thermo Scientific EPDTruDose User Handbook 47...

  • Page 64: Functional Control Displays

    Functional Control Displays allow the configuration or modification of EPD’s operation. They have the following limitations: • Cannot be configured to be the Default Display. • Cannot be pinned as the Current Display. Functional Control Displays require a confirmation of the action as follows: EPDTruDose User Handbook Thermo Scientific...

  • Page 65: Figure 49. Turn Epd Off Display

    If no button is pressed during the 2 second timeout, the display will revert to the Off Mode Display. Figure 50. EPD On Display To turn the EPD ON ❖ When EPD On Display is visible, the buttons have the following effect: Thermo Scientific EPDTruDose User Handbook 49...

  • Page 66: Figure 51. Comms Active Display

    49). Telemetry On/Off For further information regarding Telemetry, see “Telemetry” page To Turn Telemetry On/Off ❖ 1. Navigate or Select to Menu > Select > Navigate to Operations > Select > Navigate to Telemetry On/Off. EPDTruDose User Handbook Thermo Scientific...

  • Page 67: Notification Displays

    Notification Displays are not selectable by the user and cannot be navigated to using the Display Navigation Grid/Menu. These displays can be categorised as follows: • “Alarm Notification” page 52 • “Warning Notification” page 52 • “Overrange Alarm Notification” page 53 Thermo Scientific EPDTruDose User Handbook 51...

  • Page 68: Figure 55. Alarm Notification Display

    Figure 56. Warning Notification Display Example: TruDose G, - BG TruDose NG The Neutron Dose Meter TruDose NG incorporates separate warning and alarm thresholds for Neutron-, Gamma- and total dose and - dose rate. Measured quantity is always Hp10. EPDTruDose User Handbook Thermo Scientific...

  • Page 69: Off Mode Displays

    “Off Display” page 54 • “Calibration Due Date Display” page 54 • “User Bitmap Display” page 54 • “Manufacturer Logo Display” page 54 • “Customer Logo Display” page 54 • “EPD Version Display” page 54 Thermo Scientific EPDTruDose User Handbook 53...

  • Page 70: Battery Alarm

    When the battery becomes critical, the EPD will attempt to use residual battery energy to operate the Sounder. However, the EPD is no longer able to accumulate Dose or activate any Dose Alarms. The Battery Critical indicator is displayed as follows: EPDTruDose User Handbook Thermo Scientific...

  • Page 71: Figure 63. Battery Critical Display

    LCD Display for the EPD TruDose™ Figure 63. Battery Critical Display At this point, the battery must be changed immediately (see “To Insert/Replace the EPD Battery” page 14). Blank page Thermo Scientific EPDTruDose User Handbook 55...

  • Page 72: Chapter 5 Maintenance For The Epd Trudose

    • Removing/replacing the Lanyard (see “EPD Lanyard Assembly (if required)” on page 12) • Checking the functionality and calibration of the EPD (see “Calibration Check” page • Keeping the unit clean (see “ Thermo Scientific EPDTruDose User Handbook 56...

  • Page 73: Calibration Check

    Where “Gaining” is used, this must be accounted for during calibration checking, either by adjusting the expected delivered Dose, or by temporarily disabling the Gaining effect using a suitable IR Communications Link such as EasyEPD3. The EPD Battery Thermo Scientific EPDTruDose User Handbook 57...

  • Page 74: Replacement Batteries

    The instrument in that case may detect a low battery voltage at the next battery test and deactivate the instrument finally. This indicated by the crossed battery symbol. (Figure 63) The passivation may be removed by short circuiting the battery for a few seconds EPDTruDose User Handbook Thermo Scientific...
  • Page 75 If the instrument is in OFF mode battery low status will not be shown on the display and the instrument will finally be switched off. Thermo Scientific EPDTruDose User Handbook 59...

  • Page 76: Epd Battery Storage

    6. Batteries must be disposed of in accordance with the manufacturer’s recommendation and Local/National regulations. 7. If LTC batteries are to be transported by aircraft the batteries must be in their correct packaging. EPDTruDose User Handbook Thermo Scientific...

  • Page 77: Cleaning The Epd

    Periodic Cleaning The EPD should be cleaned by wiping it over periodically with a cloth lightly dampened with a solution of water and up to 5% of a neutral water-based detergent. Thermo Scientific EPDTruDose User Handbook 61...
  • Page 78 Maintenance for the EPD TruDose™ Blank page EPDTruDose User Handbook Thermo Scientific...

  • Page 79: Appendix A Technical Description

    (as defined by ICRU Document 47): • Hp(10) personal Dose equivalent at a depth of 10mm of tissue (TD-NG: also Neutron) • Hp(0,07) personal Dose equivalent at a depth of 0.07 mm of tissue Thermo Scientific EPDTruDose User Handbook 63...

  • Page 80: Detectors And Processing

    ✔ HG_1 ✔ ✔ Hg2Sens10G HG_2 ✔ ✔ ✔ SG_1 Sg1Sens10G ✔ ✔ ✔ Sg3Sens10G SG_3 Hg1Sens07G ✔ ✔ HG_1 ✔ ✔ Hg2Sens07G HG_2 Sg1Sens07G ✔ ✔ SG_1 ✔ ✔ Sg3Sens07G SG_3 Fb1Sens07B ✔ FB_1 EPDTruDose User Handbook Thermo Scientific...

  • Page 81: Detector Thresholds

    Detector Thresholds discriminate between radiation pulses received by the EPDs detectors. The EPD has up to six Counting Channels: Table 11. EPD Internal Counters Detector EPD TruDose BG EPD TruDose G EPD TruDose NG Thresholds HG_1 HG_1 HG_1...
  • Page 82 Technical Description page 1) - see “Counters” page 46. Baseline Counts can only be read via the IR Communications link. EPDTruDose User Handbook Thermo Scientific...

  • Page 83: Chirp Function

    Accumulated Dose is written to secure non-volatile memory (EEPROM) at least every 15 minutes and if removing the battery. Battery removing events however are detected and a count of Power Cycles provided as Quality Data associated with the accumulated Dose (see “Quality Data” page 78). Thermo Scientific EPDTruDose User Handbook 67...

  • Page 84: Triggered Dose

    Peak Dose Rate. The Peak Dose Rates and the time at which these Peak Dose Rate occured are recorded and can be displayed on the LCD or read over the IR Communications link. Note: Peak Dose Rate times are stored to 1 second resolution. EPDTruDose User Handbook Thermo Scientific...

  • Page 85: Dose And Dose Rate Alarm Thresholds

    Dose Rate Alarm. When the Dose Rate ≥ Dose Rate Alarm Threshold, the EPD will operate the Dose Rate Alarm. Note that it is Dose and not Total Dose that is compared with the threshold. Thermo Scientific EPDTruDose User Handbook 69...
  • Page 86 Off % (point 5). “Dose Rate” page 40 for LCD display. Dose Rate Peak Rate Rate Alarm ON (15 uSv/h) Rate Alarm OFF (90%) Rate Warning ON (10 uSv/h) Rate Warning OFF (90%) Time Peak Time EPDTruDose User Handbook Thermo Scientific...

  • Page 87: On And Off Operating Modes

    • Also, the ability to wake the EPD via the IR Communications link can be configured to be always On or not (see “Comms Active Prompt” page 50). • In Off Mode, the user can select the information displayed (see “Off Mode Displays” page 53). Thermo Scientific EPDTruDose User Handbook 71...

  • Page 88: Available Epd Configurations

    EPDs configured as “Apply Gains” allow the user to adjust the ‘gains’ of the EPD calibration within specified % limits from the original manufacturer’s calibration. Otherwise, the Gains are ignored and the EPD operates on the original calibration settings. EPDTruDose User Handbook Thermo Scientific...

  • Page 89: Clear On Switch On

    EPD Dose is cleared. At this point you should also clear the Latched alarms in “EPD Status” page 78. The Responder Mode avoids integration of background for EPD continuously switched on. Thermo Scientific EPDTruDose User Handbook 73...

  • Page 90: Pulsed Mode

    “Communicating with the EPD” page 75 • “EPD Configuration via the IR Communications Link” page 77 – “Dose and Dose Rate” page 77 – “Counts” page 77 – “Alarm/Warning Thresholds” page 74 – “Quality Data” page 78 EPDTruDose User Handbook Thermo Scientific...

  • Page 91: Communicating With The Epd

    PC. The Infrared communication range for Desktop Reader Dongle is up to 1m, over an angle of ±30° from the normal to the front of the EPD (see Figure 65). Thermo Scientific EPDTruDose User Handbook 75...

  • Page 92: Figure 65. Epd Communications Range For Desktop Reader Dongle

    Figure 65. EPD Communications range for Desktop Reader Dongle 30° 30° 30° 30° The Desktop Reader has a nest where the EPD can be placed for reading (see Figure 66). Figure 66. Desktop Reader showing TruDose EPD in nest EPDTruDose User Handbook Thermo Scientific...

  • Page 93: Epd Configuration Via The Ir Communications Link

    The IR Communications link allows the user to view and set (with the appropriate Access Level) the Dose and Dose Rate Alarm/Warning Thresholds for the EPD. See “Dose and Dose Rate Alarm Thresholds” page 69 for further information. Thermo Scientific EPDTruDose User Handbook 77...
  • Page 94 Dose Rate Alarms are normally cleared by system software at the start of an issue period. Latched Alarms can be cleared using the “Clear Latched button” page For each measurement quantity: • Dose Alarm • Dose Warning • Dose Overrange EPDTruDose User Handbook Thermo Scientific...
  • Page 95 • Reduce Rate Overrange • Dose Write Enabled • Clear On Switch On Enabled • Alkaline Battery Fitted • Golden • Pulsed Mode • Covert Mode Enabled • Protected Session • Deep Sleep Mode Enabled Thermo Scientific EPDTruDose User Handbook 79...
  • Page 96 • Wearer Name and up to three IDs • Task Name and ID • EPD Issue State - whether the EPD is Issued or not • Issue Count - the total number of times that the EPD has been issued EPDTruDose User Handbook Thermo Scientific...
  • Page 97 EPD RTC using the IR Communications link. The Event History store is accessible when the EPD is interrogated over the IR Communications link. See “Memory Characteristics” page 88 for further information. Thermo Scientific EPDTruDose User Handbook 81...

  • Page 98: Access Levels

    Allows the user to enable, disable and configure Telemetry. Access Levels Allows the user to set the access permissions for the EPD between different User Levels. Batch Write The Batch Write utility allows the configuration of a single or multiple EPDs. EPDTruDose User Handbook Thermo Scientific...
  • Page 99 Technical Description Thermo Scientific EPDTruDose User Handbook 83...

  • Page 100: Appendix B Physical Characteristics Of The Epd

    “Lithium Thionyl Chloride Battery Warning” page Access Hatch Diameter: 13.9 to 14.6 mm. Dimensions Length: 49.0 to 51.0 mm. Access Two M2 (or security) screws. Environmental and EMC seal. “To Insert/Replace the EPD Battery” page Thermo Scientific EPDTruDose User Handbook 84...
  • Page 101 – Alarm is on for less than 15 minutes total per month. – Communications frequency on average no more than twice per day and less than 30 seconds communications time on average per day Thermo Scientific EPDTruDose User Handbook 85...

  • Page 102: Mechanical Characteristics

    Real Time Clock EPD has real time clock for accurate time tagging of Dose Profile and recorded events. Battery Removal RTC continues with battery removed for at least 10 hours. IR Communications link Synchronization of EPD clock. EPDTruDose User Handbook Thermo Scientific...

  • Page 103: Alarms Characteristics

    Dose Chirp ‘Chirp’ rate, proportional to Hp10 Dose Rate. Sensitivity selectable from 0.01 μSv/chirp to 100 μSv/chirp via IR Communications Link. Dose Rate and Overrange alarm status is latched for subsequent system analysis Thermo Scientific EPDTruDose User Handbook 87...

  • Page 104: Communications Characteristics

    “Configurable Alarm Characteristics” page Stay Time Remaining Count-down timer configurable up to 24 hours (1 minute resolution). Enabled/Disabled Return for Read Count-down timer alarming when date/time is reached. Note that these features use the same Alarm EPDTruDose User Handbook Thermo Scientific...

  • Page 105: System Integration Facilities

    • Set Alarm Thresholds and Alarm characteristics • Turn the EPD On or Off • Enable and disable controls via the button • Adjust the Dose Profile settings. See“EPD TruDose Communications via IR Link” page Thermo Scientific EPDTruDose User Handbook 89...

  • Page 106: Backlight Display Characteristics

    Dose Rate Display up to three decimal places Resolution • μSv (can be disabled) • mSv • mrem Decimal Places • Limit to 2 decimal places for dose rate “Display Formats (Dose and Dose Rate)” page EPDTruDose User Handbook Thermo Scientific...

  • Page 107: Display Formats (Dose And Dose Rate)

    1 mrem 0. 9 μSv 9 mrem 1. 0 μSv 0 mrem 9. 9 μSv 9 mrem 10.0 μSv mrem 99.4 μSv mrem 100.0 μSv mrem 994.9 μSv mrem 1,000 mrem 9,949 mrem 10,000 99,499 Thermo Scientific EPDTruDose User Handbook 91...

  • Page 108: Table 24. Standard Dose Rate Display Formats

    99,949 rem/h mSv/h mSv/h 1 0. 0 100,000 rem/h mSv/h mSv/h 9 9. 0 999,499 rem/h mSv/h 1,000,000 Sv/h rem/h Sv/h 9,994,999 Sv/h rem/h Sv/h 0 rem/h 10,000,000 Sv/h Sv/h 0 rem/h 99,949,999 Sv/h Sv/h EPDTruDose User Handbook Thermo Scientific...

  • Page 109: Table 25. Dose Rate Display (Limited To 2 Decimal Places) Formats

    10,000 mSv/h rem/h mSv/h 99,499 mSv/h rem/h mSv/h 100,000 mSv/h rem/h mSv/h 994,999 mSv/h rem/h mSv/h 1,000,000 Sv/h rem/h Sv/h 9,949,999 Sv/h rem/h Sv/h 0 rem/h 10,000,000 Sv/h Sv/h 0 rem/h 99,499,999 Sv/h Sv/h Thermo Scientific EPDTruDose User Handbook 93...

  • Page 110: Appendix C Radiological Specifications

    Preabsorption less than 15 mg/cm Combined Energy and Ref. Ref. Angular Response -29% to +67%, -40% to +40%, 16 keV to 1 0 MeV 20 keV to 25 keV (0º to 60º) -29% to 67%, Thermo Scientific EPDTruDose User Handbook 94...

  • Page 111: Table 25B

    Maximum Dose Rate no Limit same as continuous in Pulse Radiation Maximum Dose 0 µSv to 0,01 µSv > 80 % in Pulse Indication of Dose Rate > 0,01 µSv/Pulse 0,02 µSv/Pulse max. Overrange Thermo Scientific EPDTruDose User Handbook 95...

  • Page 112: Appendix D Environmental Specifications

    Shock Dropped from 1.5 meters onto concrete surface (meets IEC 61526). IP Rating EPD TruDose-BG meets IP-65. EPD TruDose-G meets IP-67. EMI-EMC (including Meets IEC 61526 static discharge) Radiation Life Minimum of 50 Sv Thermo Scientific EPDTruDose User Handbook 96...
  • Page 113 Physical Characteristics of the EPD Blank page Thermo Scientific EPDTruDose User Handbook 97...

  • Page 114: Appendix E In Built Integrity Checks

    – Fail result from hardware test (e.g. Flash LED detector test). 6. Initiating a Dose Clear operation where the EPD is configured for Clear On Switch On (see “Clear On Switch On” page 73). Thermo Scientific EPDTruDose User Handbook 98...

  • Page 115: Detector Test

    Flash LEDs and reading the counters, before and after (see “EPD Types” page 2. Counts that can be attributed to the Detector Test are not included in counts accumulation or processed into Dose or Dose Rate contributions. Thermo Scientific EPDTruDose User Handbook 99...

  • Page 116: Battery Load Test

    Low Threshold. The EPD will continue to run normally thereafter for a period of at least 8 hours, though this may be shortened by continuous audible alarm output. When the EPD is no longer able to continue correct processing, it enters the Battery Critical State. See “Battery Alarm” page EPDTruDose User Handbook Thermo Scientific...

  • Page 117: Confidence Test

    Note: The Confidence Test does not interrupt the normal dose processing if the EPD is in the ON state when initiated. If an alarm condition is raised while the Confidence Test is running, the Confidence Test is abandoned and the normal alarm indication will take priority. Thermo Scientific EPDTruDose User Handbook 101...

  • Page 118: Appendix Fepd Faults And Recovery Actions

    • The EPD may also fail without producing or displaying an error code, or causing an alarm. A list of such faults and the recommended course of action are listed in Table 28 page 106. For recovery, see “Recovery Procedures” page 103. Thermo Scientific EPDTruDose User Handbook 102...

  • Page 119: Recovery Procedures

    If the unit is to be restored to operational use, clear down all faults on display and in the Fault Status Record, using EasyEPD3. This is to ensure that any subsequent faults are detected. Thermo Scientific EPDTruDose User Handbook 103...

  • Page 120: Epd Displayed Fault Codes

    Dose Store Initialization Error EEPROM Fault Dose Processing Options EEPROM Fault Sensitivity Gains EEPROM Fault Alarm Thresholds EEPROM Fault Dose Rate Filter EEPROM Fault UI Configuration EEPROM Fault UI Display Enables EEPROM Fault UI Alarm Configuration EPDTruDose User Handbook Thermo Scientific...

  • Page 121: Table 27. Fault Codes

    EPD Faults and Recovery Actions Table 27. Fault Codes Code Text as displayed in EasyEPD3 EEPROM Fault UI Alarm Locks Early Communications Failure For further information, contact Thermo Fisher Scientific (see “Contacting Us” page xv). Thermo Scientific EPDTruDose User Handbook 105...

  • Page 122: Other Epd Faults

    Other EPD Faults Table 28. Faults associated with EPD Hardware Symptoms Likely Cause Diagnosis Repair Instructions Faulty LCD Remove old and insert new battery. Nothing displayed on the Battery Failure Attempt to communicate with the EPD using LCD, not even ‘Heart EasyEPD3 to check if EPD can be read.
  • Page 123 47). Faulty Button Cannot mute alarm using Muting Disabled Using EasyEPD3, check that mutable has been No Action. buttons enabled for the Alarm condition. If enabled and mute not working, go to next step. Thermo Scientific EPDTruDose User Handbook...
  • Page 124 Table 28 Faults associated with EPD Hardware Symptoms Likely Cause Diagnosis Repair Instructions No response to button Buttons faulty Attempt to use buttons to navigate the menu. If failure, return to manufacturer. Clip Damage Clip threaded fixing Over screwing the clip screw Clip screw does not hold.
  • Page 125 Blank page Thermo Scientific EPDTruDose User Handbook...

  • Page 126: Glossary

    Clear by subtracting the snapshot from the present EasyEPD3 A program for reading and writing a count values. single EPD. BC Beta Compensating EEPROM Electrically Erasable Programmable Read BLE Bluetooth Low Energy. The wireless Only Memory Thermo Scientific EPDTruDose User Handbook...

  • Page 127: Ir Infra-Red

    HPA Health Protection Agency in the UK -- the statutory authority for radiological protection in the NC Neutron Compensating UK. (Previously NRPB) nm nanometer NPP Nuclear Power Plant ICRU International Commission on Radiation NRPB National Radiological Protection Board Units Thermo Scientific EPDTruDose User Handbook...
  • Page 128 RTC Real Time Clock Wearer ID A numeric code of up to 32 characters RTOS Real-Time Operating System that may be written to the to define the current Wearer ID. There are three Wearer IDs available. EPDTruDose User Handbook Thermo Scientific...
  • Page 129 Glossary Wearer Name A character string of up to 32 characters that may be written to the EPD. WEEE Waste Electrical and Electronic Equipment (EU Directive) Thermo Scientific EPDTruDose User Handbook...

  • Page 130: Index

    How to display Counts Measurement Covert Mode Enabled quantity Dose Critical Failure Notification How to display Dose Alarm How to display Detector Sensitivities Dose Rate Detector Test How to display Detector Thresholds Dose Rate Alarm directive, WEEE Thermo Scientific EPDTruDose User Handbook...
  • Page 131 How to display Safety notices xvii Start Confidence Test Stay Time Remaining How to display Task ID How to display Task Name How to display Telemetry To Turn On/Off Telemetry Connected Telemetry Enabled Telemetry On/Off Thermo Scientific EPDTruDose User Handbook...

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