Related Manuals for Johnson Matthey Tracerco PED Series
Summary of Contents for Johnson Matthey Tracerco PED Series
- Page 1 User Manual Personal Electronic Dosimeters (PEDs) Date: 23 April 2018 Document reference: MN1010 Rev. G...
- Page 2 Tracerco Measurement Technology Centre Billingham, UK USA, Pasadena TX, USA The Moat Tel +44 1642 375500 Tel +1 281 291 7769 Belasis Hall Technology Park Billingham Abu Dhabi, UAE Bergen, Norway TS23 4ED Tel +971 2 5541672 Tel +47 55 36 55 40 Email: tracerco@tracerco.com Kuala Lumpur, Malaysia...
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Page 3: Table Of Contents
Table of Contents Tracerco PEDs ..............................5 Overview ............................... 5 PEDs ................................5 Interface ................................ 6 Functional Description ............................7 Readings screen ............................7 Dose and dose rate measurement ....................... 8 Dose rate overload ............................8 Alarms ................................8 2.4.1 Dose alarms .............................. - Page 4 3.9.2 Critical errors ............................20 Maintenance ................................ 22 Upgrading the firmware..........................22 Charing the battery ............................. 22 Charging the battery wirelessly (PED+ and PED-ER+) ................23 Cleaning ..............................23 Calibration ..............................23 PED-IS repairs ............................24 Accessories ..............................24 MN1010 Rev. G 4 of 25...
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Page 5: Tracerco Peds
Tracerco PEDs Overview PEDs (personal electronic dosimeters) measure and record the dose and dose rate that the person wearing the PED has been exposed. PEDs measure the radiation equivalent dose Hp(10), accumulated in X-ray and gamma rays radiation, which is the equivalent dose at 10 mm below surface of the upper body. Therefore, PEDs must be worn on the upper body. -
Page 6: Interface
Interface The key interface features are as follows: 1. System check: Flashes green periodically while the PED is functioning correctly. The LED flashes red if the instrument is in a critical status. 2. Dose rate alarm: Flashes amber while the amber dose rate alarm is exceeded. -
Page 7: Functional Description
Functional Description Readings screen Attention: Tracerco recommends that the time before screensaver activation should be kept as low as practical as long periods of screen activity reduce the lifetime of the screen. PEDs have the following display modes: • Combined dose and dose rate (this is the default screen layout) •... -
Page 8: Dose And Dose Rate Measurement
Status bar Displays time, date and battery capacity. Alternates with PED status and warning messages, if any are current. Attention: For the PED+ and PED-ER+, the status icons for Bluetooth or GPS features are shown alternating with the battery symbol if enabled. Dose and dose rate measurement PEDs measure and record the following: Dose equivalent... -
Page 9: Dose Alarms
If the PED button is pressed during an alarm, the audible alarm is silenced and the vibrating stops. However, the relevant LED continues to be activated. Attention: The PED+ and PED-ER+ allow alarm messages to be configured so that, when an alarm is triggered, a message related to the specific alarm is displayed. -
Page 10: Data Logging
• Overload Top of the readings screen shows • >100mSv/h >1 Sv/h Dose rate is displayed as . (or equivalent in rem/h). • Dose values are still displayed, but flash to indicate possible inaccuracies. • Dose Error? Status bar shows a warning symbol and message. -
Page 11: Discrete Mode
PEDs can record up to 9999 tasks. The four most recent tasks can be reviewed through the task details screen. Attention: All task data logging periods may be displayed when data is viewed in DoseVision™. Task details can be cleared from PEDs after data has been transferred to DoseVision™. Discrete mode The discrete mode disables the audible and visual warnings of alarm conditions. -
Page 12: Gps Logging (Ped+ And Ped-Er+)
GPS logging (PED+ and PED-ER+) The PED+ can log location data using the built-in GPS module. DoseVision™ can then show maps with dose and dose rate data on maps as shown below. Note that the status of alarms is also logged as shown by the green, oranges, and red data points. -
Page 13: Ped+ And Ped-Er
2.10.2 PED+ and PED-ER+ For the PED+ and PED-ER+, Tracerco recommends using the screensaver whenever possible and switching off Bluetooth and GPS when not required. The table below gives estimates for the battery life when working at background radiation levels. Screensaver Bluetooth Battery life expected from fully charged... -
Page 14: Operation
Operation Attention: The PED-IS is certified for use in potentially explosive atmospheres (hazardous areas). Therefore, the PED-IS must be operated in accordance with the information contained in the document MN1004 Essential Safety Information. Setting up PEDs Before using PEDs, set the alarm levels, users, and so on, using DoseVision™ as detailed in a separate document on DoseVision™... -
Page 15: Navigating The Menus
Navigating the menus The PED button opens the Main menu. The Settings menu is then opened from the main menu. 3.3.1 Main menu Icon Description Alarm levels Displays the amber and red alarms levels for the dose and dose rate. Note that the alarm levels are set in DoseVision™. -
Page 16: Settings Menu
3.3.2 Settings menu The table below details the Settings menu. Icon Description Power status Fully charged PEDs can be expected to last for more than 300 hours in normal operating conditions before recharging is required. A low battery warning is displayed when only eight hours is remaining. -
Page 17: Wearing Peds
Wearing PEDs PEDs must be worn on the upper body to function correctly as a personal dosimeter. PEDs must be worn with the screen facing outwards. For best performance, wear the PED on the outer layer of clothing for easy readings and to make sure alarm lights are visible. -
Page 18: Using A Ped+ Or Ped-Er+ In The Handheld Mode
Using a PED+ or PED-ER+ in the handheld mode Personal dose is not accumulated in handheld mode In the handheld mode, the PED+ and PED-ER+ measures the dose rate which is compensated for the fact that it is no longer being worn on the body. Therefore, the PED+ should be held away from the body whenever possible. -
Page 19: Pop-Up Messages
Pop-up messages The PED+ and PED-ER+ can display pop-up messages for specific alarms. Messages can contain instructions on to help you make decisions based on your measured radiation exposure. To clear the sounder, press the PED button once. To clear the message, press and hold the PED button. Warning messages PEDs show non-critical warning and critical error messages in the status bar of the readings screen status bar. -
Page 20: Critical Errors
Non-critical Description Action warning Calibration due More than one year has elapsed since the last Return the PED to Tracerco. calibration. Tracerco recommends yearly calibration. Default Cal data The default calibration values (factory setting) are set. Return the PED to Tracerco. Memory low The memory is more than 70% full. - Page 21 Critical error Description Action Battery critical The battery level is so low that the radiological Recharge the battery. performance of the PED cannot be guaranteed. The PED shuts down 10 seconds after a battery critical warning. To preserve the internal clock, do not switch on the PED before recharging.
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Page 22: Maintenance
Maintenance Attention: The PED-IS is certified for use in potentially explosive atmospheres (hazardous areas). Therefore, the PED-IS must be operated in accordance with the information contained in the document MN1004 Essential Safety Information. The PED-IS must never be used in a hazardous area whilst connected via USB as this would violate the certification and may create an unsafe situation. -
Page 23: Charging The Battery Wirelessly (Ped+ And Ped-Er+)
Charging the battery wirelessly (PED+ and PED-ER+) The PED+ and PED-ER+ can be charged wirelessly using a Qi compatible wireless charger. To charge wirelessly, the clip must be removed from the PED and the rear surface of the PED placed in contact with the charging surface. -
Page 24: Ped-Is Repairs
Tracerco PEDs must be calibrated with the display screen facing the radiation beam. The position of the GM-tube detector is clearly marked by the detector window near the bottom of the front face. An ISO phantom or suitable correction factor should be employed during calibration. Attention: The calibration is invalid if the PED is not worn on the torso when operating as a dosimeter. - Page 25 MN1010 Rev. G 25 of 25...
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