Page 1 AccuRad PRD Personal Radiation Detector User’s Manual DOC012721EN-D...
Page 2 AccuRad PRD 2/124 DOC012721EN-D Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites The publication, translation or reproduction, either partly or wholly, of this document is not allowed. Format 112175F...
Page 3 AccuRad PRD CAUTION: The AccuRad PRD is not certified for explosive atmospheres! DOC012721EN-D 3/124 Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites The publication, translation or reproduction, either partly or wholly, of this document is not allowed. Format 112175F...
Page 4 Revision Log AccuRad PRD Revision Log Ind. Date Verified by Approved by Origin and description of Revised revision pages D. LE BRAS P. TALENT 2019-11 Document creation P. TALENT T. VIDAL 2020-11 DEVN 40052 Applicable up to firmware V1.3 §3.2.1, Edited hardware overview §3.3, Edited detectors paragraph...
Page 5 AccuRad PRD Revision Log Ind. Date Verified by Approved by Origin and description of Revised revision pages C. FOURCADE P. TALENT 2021-04 DEVS 40705 Applicable up to firmware V1.4 §3.2.2, Added dark mode §4.1, Edited battery insertion §4.2, Edited first use procedure §4.4, Edited Use summary...
Page 6: Table Of Contents
Disabling discreet mode ................... 26 4.5.3 Using earphones ....................27 Pairing the AccuRad PRD to a smartphone with NFC ..........28 Standby / Wakeup the AccuRad PRD ................28 Powering off the AccuRad PRD ..................29 AccuRad PRD advanced usage .................. 31 Main menu overview ......................
Page 7 Accessing alarm history data ................41 5.5.2 Sending Alarm History Data to a Remote Monitoring Station ......42 Dose ..........................42 Update background (BKG) ..................... 43 AccuRad PRD settings ....................45 Display ........................... 46 6.1.1 Units ........................46 6.1.2 Behavior ......................48 6.1.3...
Page 8 10.2.1 .n42 file example .................... 115 10.2.2 .xlsx files description ..................116 10.2.3 Example of use of dose history and alarm history ......... 118 10.3 Appendix 3: AccuRad PRD drawings and reference point for dose rate measurement119 10.4 Appendix 4: Calibration recommendations ..............120 8/124...
Page 9: Introduction
The AccuRad PRD is powered by two AA batteries (1.2V to 1.5V). The AccuRad PRD is designed for pairing to a smartphone with the AccuRad App. The AccuRad App provides sharing features including data logging, batch processing, messaging (email, SMS), and reachback connectivity to common operational data platforms.
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Page 11: Advantages
Smooth user experience ◼ The AccuRad PRD can operate in full autonomy, only alerting the operator when a source is detected and to assist in localizing and evaluating the threat. Effective alarm indicators are provided: loud audible, attentive vibrator, clear visual display information and bright LEDs.
Page 12 Advantages AccuRad PRD Simplified data transmission over the smartphone application via Bluetooth ◼ The AccuRad integrates Bluetooth with Near Field Communication (NFC) for pairing and transmission of AccuRad data to a dedicated smartphone application. For smartphone without NFC, manual pairing remains possible via Bluetooth Low Energy (BLE).
Page 13: Accurad Prd Description
AccuRad PRD AccuRad PRD description AccuRad PRD description What’s in the box One AccuRad PRD detection device with a belt clip ◼ Two AA alkaline batteries ◼ One spare belt clip ◼ One quick start guide ◼ AccuRad PRD Alkaline batteries...
Page 14: Accurad Prd Overview
AccuRad PRD description AccuRad PRD AccuRad PRD overview 3.2.1 Hardware overview Low range detector Front reference points display screen High range detector ▲ reference points Arrow buttons ▼ on/off button type C port NFC contact area ◄ Back Enter Battery...
Page 15 AccuRad PRD AccuRad PRD description The AccuRad PRD device includes five buttons, two screens, two LED indicators and a connector: A large front display screen ◼ The top display screen ◼ on/off button is used to power on (short press); power off (long press) and ◼...
Page 16: User Interface Overview
AccuRad PRD description AccuRad PRD 3.2.2 User interface overview Bluetooth Alarm Sound Gamma Measurement Value and Unit Histogram Interface in Interface in Dark mode Light mode mode Note: The user interface is displayed in light mode by default, however it can also be displayed in dark mode.
Page 17: Detectors
◼ gamma radiation activity from background to 160 kcps; refer to the table below for the equivalent dose rate. The center of the low range detector is identified on the AccuRad PRD case by a round symbol. Sensitivity Max range for 160 kcps Am-241 2200 c/s/µSv/h...
Page 18: Wearing The Accurad Prd
AccuRad PRD description AccuRad PRD 3.3.1 Wearing the AccuRad PRD Worn on the belt ◼ To release it from the belt, just turn the device. The AccuRad is designed to be worn on the belt with the integrated belt clip. The operator shall ensure the top display remains visible in order to check any detected threat without manipulating the device.
Page 19: Accurad App Overview
The AccuRad App is available on the Apple Store or Google Play download platform. It communicates with the AccuRad PRD device via Bluetooth. The AccuRad PRD device can be easily paired to the AccuRad App via NFC or manually. Refer to §4.6 Pairing the AccuRad PRD to a smartphone with NFC.
Page 20: Accurad Management Center
The AccuRad Management Center requires a PC with Windows 10 64-bit, one USB 2.0 port (or newer), and a USB type C cord. Launch the AccuRad Management Center and connect the AccuRad PRD. Once the AccuRad PRD is automatically detected, the operator can use the user-friendly interface Check the device status (presence of detector / system faults) ◼...
Page 21: Using Accurad Prd
◼ NiMH 1.2V batteries (rechargeable). ◼ Make sure to set the AccuRad PRD with the correct type of batteries. For more information refer to paragraph §6.6 Battery. Caution: - When inserting the batteries, make sure to position them to the correct polarity following the polarity marking present in the battery compartment.
Page 22: Charging Nimh Batteries
4.1.1 Charging NiMH batteries If using NiMH batteries, connect the AccuRad PRD to the mains via the USB-C port to charge it. The power adaptor automatically detects if the batteries can be charged and if they work properly. If that is not the case, the USB LED indicator blinks red and green.
Page 23: Start The Accurad Prd
4.3.1 Calibration expired If the calibration date is expired, and if the function is enabled, the AccuRad PRD notifies it twice, during the startup then with a CAL pictogram on the main screen. The calibration is performed with a high range calibrator/irradiator. For more information about calibrating the AccuRad PRD, refer to §7.3.4.2.1 New Calibration.
Page 24: Use Summary Of The Accurad Prd
Using AccuRad PRD AccuRad PRD Use Summary of the AccuRad PRD The AccuRad is designed for comfortable one-handed or hands-free operation. The front and side buttons are easily accessible for one-handed operation 4.4.1 Detection Mode Operation Summary The operator is wearing or holding the The AccuRad alarms when a source is AccuRad in Detection Mode.
Page 25: Search With Radar Mode Operation Summary
AccuRad PRD Using AccuRad PRD Detection Mode Operation Summary (cont.) enter button twice to switch to Search mode and press ▲/▼ arrow buttons to Press the choose trend or radar. Press ◄ back button to exit Search mode. In Search mode the device emits no alarm sound; only chirping (unit = cps recommended).
Page 26: Discreet Mode Overview
AccuRad PRD to be perceived by the environmental people. By default, in this mode, the audible and visual alarms (LEDs) are deactivated. However, audible alarms can be heard if using earphones. The AccuRad PRD continues to alarm the operator through its vibrator and the warning messages are displayed.
Page 27: Using Earphones
(pictures are not contractual) Note about USB-C earphones: - The AccuRad PRD is compatible with analog earphones only. - Mirion can supply earphones tested for operability. Mirion cannot guarantee similar functionality in other brand models. It is recommended to test before using in the field.
Page 28: Pairing The Accurad Prd To A Smartphone With Nfc
The location of the NFC contact point may change depending on the smartphone model. For more information, refer to your smarphone user’s manual. Standby / Wakeup the AccuRad PRD Do a short press on the on/off button to put the AccuRad PRD on standby. To wake it up: Press any button; ◼...
Page 29: Powering Off The Accurad Prd
AccuRad PRD Using AccuRad PRD Powering off the AccuRad PRD There are two methods to power off the AccuRad: ▪ Continuous press of the on/off button for about 5 seconds and the AccuRad will automatically power off at the end of the countdown.
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Page 31: Accurad Prd Advanced Usage
Discreet: switch to discreet mode. For more information, please refer to §4.5 Discreet ◼ mode overview. Alarm history: an internal log of the alarms triggered by the AccuRad PRD. For more ◼ information, please refer to §5.4.3 Stopping the Search Mode To exit the Search Mode, press the ◄...
Page 32: Using Accurad In Detection Mode
AccuRad PRD advanced usage AccuRad PRD Using AccuRad in Detection Mode Detection mode is used when the AccuRad is worn for operation in background environments. In Detection mode, the large display is off and only the top display screen is active.
Page 33: Using The Trend Screen
AccuRad PRD AccuRad PRD advanced usage 5.2.1 Using the Trend screen The Trend Screen provides: The measurement value (dose rate or count rate in search mode). ◼ The graphical autoscale trend view corresponds to the real time measurement value. ◼...
Page 34: Using Accurad Prd In Alarm
AccuRad PRD Using AccuRad PRD in Alarm The AccuRad PRD has three alarm levels for dose rate measurement and two alarm levels for dose measurement. In dose rate, the low alarm level implies a weak but abnormal elevation of the radioactive background.
Page 35: Acknowledging Visual And Sound Alarms
“High background” indication means that the AccuRad PRD is probably close to a source. This can happen for very slowly approaching sources (typically less than 0.1 m/s) or very slowly increasing levels. In these conditions, take the same actions as for a “LOW ALARM”.
Page 36: Using Accurad Prd In Search Mode
5.4.2 Using the Search mode In search mode, both displays are active. The operator holds the AccuRad PRD in his/her hand and either observes the Trend screen to find where the radiation level is the highest (and at the same time avoid being in a dangerous situation) or uses the Radar screen to determine the direction of the radioactive source.
Page 37 AccuRad PRD AccuRad PRD advanced usage Operator Actions: enter button twice to switch to search mode and press the ▲/▼ arrow Press the ◼ buttons to choose trend or radar. Press the back◄ button to exit Search mode. In Search mode: no alarm sound, chirping only (recommended unit = cps).
Page 38 The radar must be calibrated prior to use. For more information refer to §6.7.2 Perform radar calibration. The radar display is built out during the rotation of the AccuRad PRD as the operator attempts to locate the radioactive source by turning on the spot. The AccuRad PRD uses a magnetometer sensor to measure the rotation.
Page 39 AccuRad PRD AccuRad PRD advanced usage Sector scale: 10 times background or more 3 times background 1.5 times background Note: All the sectors are progressive except the first one that is fully filled when the sector is scanned. When the arrows are bold black, the AccuRad is prompting the operator to turn around.
Page 40: Stopping The Search Mode
Sectors are progressively filled during the rotation. Note: When at least three sectors have been partially - Keep the AccuRad PRD with the same filled, the sector with the highest count rate is angle against the body during the rotation.
Page 41: Analyzing Accurad Prd Alarm History Data
AccuRad PRD AccuRad PRD advanced usage Analyzing AccuRad PRD alarm history data Alarm history is accessible from any measurement screen. This history provides the operator the alarm history from the newest to the oldest; it contains only the alarms. Alarm history can also be...
Page 42: Sending Alarm History Data To A Remote Monitoring Station
Dose mode gives the possibility to see the dose since the last startup of the AccuRad PRD or since the last dose reset (when the AccuRad PRD is all the time on or for a calibration). To reset the dose: Open the menu.
Page 43: Update Background (Bkg)
◼ Top display Front display The AccuRad PRD is ready to be used when the background update is complete. Note: Neither the trend screen nor the radar screen can be used during background initialization, because those screens require the background value to operate.
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Page 45: Accurad Prd Settings
AccuRad PRD AccuRad PRD settings AccuRad PRD settings The AccuRad PRD is delivered with a default set of parameters. These settings are stored in non-volatile memory. The settings of the AccuRad PRD can be edited: on the device itself, ◼...
Page 46: Display
AccuRad PRD settings AccuRad PRD Display 6.1.1 Units 6.1.1.1 Setting up the Dose Rate or Count Rate Measurement Display The dose rate measurement display shows the gamma dose rate or count rate of the detection. To set this type of display: Open the menu Display.
Page 47 AccuRad PRD AccuRad PRD settings 6.1.1.2 Using the 0-9 Unitless Measurement Scale Display The 0-9 Unitless Measurement Scale Display corresponds to ten levels of radiation defined by default following this table (example of conversion values provided by default): Unit-less value...
Page 48: Behavior
□ Lock keys: enable key lock. When enabled, only the on/off button followed by two presses on the ◄ back button awake the AccuRad PRD from standby (more information on §4.7 Standby / Wakeup the AccuRad PRD). □ : enable/disable dark mode. When dark mode is enabled, a dark theme is used on both displays.
Page 49: Language
Thresholds are different in 0-9 Unitless Measurement Scale display and in Dose rate measurement display! If the low range detector saturates, the AccuRad PRD automatically switches to the high range detector to measure the dose rates and protect the operator and the low range detector.
Page 50: Alarms Thresholds For Dose Rate & Count Rate
6.2.2 High background alarm The AccuRad PRD continuously measures a background level which is used to calculate the low alarm threshold. If this measured background level becomes excessive, the AccuRad PRD emits a sound and indicates “High background”. The “High background”...
Page 51: Low
□ High Bkg: defines the high background alarm threshold. The default value is 300 nSv/h (0.30 µrem/h). This value must be adjusted if the AccuRad PRD is used in an environment where background is naturally high. When the sigma function (detection on relative variation of the measurement) is disabled, all the associated settings are no longer accessible and are greyed out.
Page 52: High/Danger
AccuRad PRD settings AccuRad PRD 6.2.4 High/Danger This menu is used to adjust the absolute dose rate High Alarm & Danger thresholds. Open the menu, select Settings, Alarms, and then High/Danger. ◼ In the High/Danger menu, set the following items: ◼...
Page 53: Saturation
If the device is exposed to a dose rate superior to 10 mSv/h, the background recovering time may be longer than 1 minute. In that case the AccuRad PRD may display the message Low Range Overload. During the display of this message the device keeps measuring using the high range detector.
Page 54: Dose
AccuRad PRD settings AccuRad PRD 6.2.6 Dose This menu is used to adjust the dose alarm and the dose danger thresholds. Open the menu Alarms / Dose. ◼ In the Dose menu, set the following items: ◼ □ Dose alarm: first level of dose alarm. The unit can be set in dose unit only. This threshold can be disabled, in that case the line is greyed out.
Page 55: Search Mode
Vibration (recommended): enable/disable vibration which will vibrate in the rhythm of the count rate in search mode. □ Sound (recommended): enable/disable the AccuRad PRD to generate the chirp sound in search mode and in alarm. □ LED (recommended): enable/disable the alarm LED indicator in search mode. If enabled, the alarm LED indicator flashes to the rhythm of the measured count rate in Search mode.
Page 56: Date/Time
Select the value and Save the selection. Note: The internal clock of the AccuRad PRD remains active during at least one month if the AccuRad PRD is stored without batteries. After one month, the AccuRad PRD will ask to set the date and time at the next startup.
Page 57: Bluetooth
AccuRad PRD AccuRad PRD settings Bluetooth This option is used to manage Bluetooth connection, for instance to pair the AccuRad PRD to a Smartphone without using NFC. Bluetooth can also be disabled here to forbid any connection. AccuRad PRD uses Bluetooth 4.2 protocol; communication is encrypted using the AES 128 cryptography engine.
Page 58: Using The Manual/Nfc Connection Mode
Press the ◼ Manual/NFC, then press the enter button to confirm. Select Connect: the AccuRad PRD is available for 30 seconds and can be connected ◼ to the smartphone via NFC; the Bluetooth icon turns . When a device is connected,...
Page 59: Using The Opened Connection Mode
6.5.3 Using the Opened connection mode In this mode, the smartphone can be reconnected at any time to the AccuRad PRD with which it was connected the last time, so the user does not have to worry about pairing the AccuRad PRD to the smartphone after turning it on.
Page 60: Using Disabled Mode
AccuRad PRD settings AccuRad PRD 6.5.5 Using Disabled mode Use this mode to disable Bluetooth on the AccuRad PRD, so any connection is made impossible. Open Settings, Bluetooth: on the screen, the Bluetooth name and the MAC Address ◼ are indicated.
Page 61: Battery
View and edit the calibration service date, validity period and if the validity is still good. The calibration is performed with a high range calibrator/irradiator. For more information about calibration the AccuRad PRD, refer to § 7.3.4.2.1. Open Settings, Service, Calibration.
Page 62: Perform Radar Calibration
◼ Radar calibration consists of two steps: Step 1: Slowly rotate the AccuRad PRD on each of the rotation axes (X, Y and Z) until ◼ the progress bar is filled. When done, the AccuRad PRD will vibrate. If this step fails (progress bar depleted), make sure that you are in a magnetic-free environment, then repeat step 1.
Page 63: Health Test
The device will restart the same sequence as for the AccuRad initialization. During the test, the LEDs, sound and vibrator should be checked by the user. For more details, please refer to §4.3 Start the AccuRad PRD. Note : If any of the Health Test items show FAIL, refer to paragraph §8.2 Troubleshooting or contact your Mirion Technologies representative.
Page 64: Change Pin
AccuRad PRD 6.7.4 Change PIN The PIN code is used to protect all the critical settings and features of the AccuRad PRD that are greyed. A programmed PIN code is required to change the PIN code. Open Settings, Service, Change PIN.
Page 65: Failure, Info, Dose And Clear All History
6.7.5 Failure, Info, Dose and Clear all History View and erase the failure and info history data. Failure history: the operator can review the list of AccuRad PRD failures. For more ◼ information, refer to §8.2 Troubleshooting. Info history: the operator can review historical events such as high background.
Page 66: About
AccuRad PRD settings AccuRad PRD About This menu displays miscellaneous device information: Serial number ◼ Part number ◼ Firmware version ◼ Hardware version ◼ Battery voltage (not available if connected on USB) ◼ 66/124 DOC012721EN-D Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites...
Page 67: Accurad Management Center
AccuRad PRD AccuRad Management Center AccuRad Management Center The AccuRad Management Center is the companion program for the AccuRad PRD. It requires a PC with Windows 10 64-bit or more recent. It communicates with one or several AccuRad PRD via USB.
Page 68: Accurad Management Center Overview
Viewing area Viewing area buttons 7.3.1 Device Click on the Device tab to select an AccuRad PRD to set. Any AccuRad PRD connected to the PC with a USB cable is listed here. 68/124 DOC012721EN-D Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites...
Page 69: Data
The Device subtab provides various info about the selected device: name, part number, serial number, firmware version, device date and time and calibration date. It also shows the dose rate and count rate currently measured by the AccuRad PRD. The following buttons are available here: Reset dose: reset the device measured dose ◼...
Page 70 AccuRad Management Center AccuRad PRD 7.3.2.2 Alarms The Alarms subtab shows the alarm history stored in the AccuRad PRD. The following buttons are available here: Refresh: update the alarm history ◼ Acknowledge all: acknowledge all the alarms that require acknowledgment ◼...
Page 71 The following buttons are available here: Refresh: update the dose history ◼ Export: export dose history as .xlsx files ◼ Clear all: clear dose history from the AccuRad PRD ◼ DOC012721EN-D 71/124 Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites...
Page 72 AccuRad Management Center AccuRad PRD 7.3.2.4 Failures The Failures subtab shows the failure history stored in the AccuRad PRD. Each failure type is identified by a pictogram. The following buttons are available here: Refresh: update the failures history ◼ Acknowledge all: acknowledge all the failures that require acknowledgment ◼...
Page 73 AccuRad PRD AccuRad Management Center 7.3.2.5 Information The Information subtab shows the information history stored in the AccuRad PRD. Each information type is identified by a pictogram. The following buttons are available here: Refresh: update the information history ◼ Acknowledge all: acknowledge all the info that require acknowledgment ◼...
Page 74: Settings
AccuRad Management Center AccuRad PRD 7.3.3 Settings Use the Settings tab to easily edit the AccuRad PRD settings, create a settings file to update the settings of various devices. 7.3.3.1 Unlocking the AccuRad PRD device The Settings tab is unavailable if the AccuRad device is locked. If that is the case: Click on Unlock device.
Page 75 Settings overview The settings are available once the AccuRad PRD is unlocked: The Settings tab is made of the same components described in §6 AccuRad PRD settings, with the following additions: Alarm – custom messages: use this part to set custom messages for the various ◼...
Page 76: Services
◼ Note that the files corresponding to the default configuration are available. Set date/time: check this option to set the AccuRad PRD date and time. ◼ When the desired items are set, press the Start button to start batch processing.
Page 77 Follow the instructions on screen to restart the device in programming mode. ◼ Wait for firmware update; the device will be reinitialized after that. Do not unplug the ◼ AccuRad PRD during the whole procedure! When the process is over, the device is turned off. DOC012721EN-D 77/124 Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites The publication, translation or reproduction, either partly or wholly, of this document is not allowed.
Page 78 To update or install a simulator firmware, go to Documents\Mirion ◼ Technologies\AccuRad Management Center\Firmwares. Place the firmware file X.X.X.X_sim.hex from Mirion Technologies. ◼ Launch AccuRad Management Center, then connect the AccuRad PRD to the ◼ computer. On the AccuRad Management Center, go to Services, then Batch processing. 78/124...
Page 79 AccuRad PRD AccuRad Management Center Check the Update firmware option, then open the drop-down list. Simulator firmware ◼ will be indicated by the mention (Simulator) next to the firmware version. Select the simulator firmware Press the Start button. ◼ The Update firmware window is displayed. Press the Yes, continue button to ◼...
Page 80 AccuRad PRD Wait for firmware update; the device will be reinitialized after that. Do not unplug the ◼ AccuRad PRD during the whole procedure. When the process is over, the device is turned off. Caution: Do not install a simulator firmware on a regular AccuRad. Similarly, do not install a regular firmware on a simulator AccuRad.
Page 81 AccuRad Management Center 7.3.4.2 Calibration Use the Calibration tab to set the AccuRad PRD calibration date, use the calibration validity, and set up a new calibration. The Calibration tab is made of the following items: In the Last calibration window: value currently in the AccuRad: ◼...
Page 82 AccuRad Management Center AccuRad PRD 7.3.4.2.1 New Calibration To set up a new calibration, first follow the steps of §10.4. ◼ Once the average dose rate for the low range and high range detector have been ◼ obtained, compare the result to the dose rate of the source. If there’s a disparity, follow...
Page 83: Miscellaneous
AccuRad PRD AccuRad Management Center 7.3.5 Miscellaneous The Miscellaneous tab provides info about the AccuRad Management Center. DOC012721EN-D 83/124 Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites The publication, translation or reproduction, either partly or wholly, of this document is not allowed. Format 112175F...
Page 84 AccuRad Management Center AccuRad PRD Blank page 84/124 DOC012721EN-D Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites The publication, translation or reproduction, either partly or wholly, of this document is not allowed. Format 112175F...
Page 85: Recommendations, Troubleshooting And Maintenance
□ Check the battery charge. □ Check the communication with the AccuRad PRD. Care should be taken to ensure the AccuRad PRD is always ‘mission ready”. Mirion Technologies recommends a routine checkup when the following occurs: Excessive physical shock. ◼...
Page 86: Troubleshooting
Note: Always follow the recommendations provided in the previous chapters. The AccuRad PRD periodically performs self-testing and diagnostics to ensure it is mission ready. In the event of a test failure, the AccuRad PRD: displays a failure message on both display screens, ◼...
Page 87 Temperature too low / too Temperature out of range. Correct behavior of the AccuRad high PRD is not ensured. Move the AccuRad PRD to a place with compliant temperatures. Auto-acknowledged if the read value becomes good and checked every 10s.
Page 88 Contact your Mirion representative. parameters. Calibration Date Expired Calibration date is too old. The AccuRad PRD requires a calibration. Check the calibration and setup a new calibration date or contact your Mirion representative. 88/124 DOC012721EN-D Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites The publication, translation or reproduction, either partly or wholly, of this document is not allowed.
Page 89: Maintenance
The AccuRad PRD is designed with a built-in health test, which is automatically performed when the device is powered ON and periodically when the AccuRad PRD is turned on except for sound, vibration and LED. Refer to paragraph §6.7.3 Health test.
Page 90: Cleaning
◼ with a lint-free cloth and isopropyl alcohol. CAUTION: Do not touch the other parts of the device with isopropyl alcohol. If necessary, contact your Mirion Technologies representative. 8.3.4 Decontamination Decontamination consists of removing unwanted dust or fluids. When performing decontamination, personnel should wear the appropriate personal protective equipment (PPE) to the level of the hazard and training (radiological, chemical, etc.) or as prescribed...
Page 91: Specifications
AccuRad PRD Specifications Specifications Measurements 9.1.1 ANSI N42.32 and IEC 62401 Type of instrument PRD (Personal Alarming Radiation Detector) ◼ Type of radiation Photons (Gamma, X) ◼ Dose & dose rate equivalent quantity Hp(10) ◼ Unit for dose equivalent rate Sv/h or rem/h ◼...
Page 92: Dose Equivalent And Dose Equivalent Rate
Specifications AccuRad PRD Dose equivalent and dose equivalent rate Standard ANSI N42.20 section 5.3 (radiological ◼ requirement) for a type 1 device (accuracy, energy, angular, over-range) Range ◼ □ According to ANSI N42.32 section 6.6 Up to 10 mSv/h (1rem/h) □...
Page 93 AccuRad PRD Specifications Angular response of the low range detector: ◼ (1) The device is able to measure dose rates up to 1000 rem/h accurately. However, above 10 rem/h, the recovery time is longer than required in the ANSI N42.34. To enable this function, refer to §6.2.5 Saturation.
Page 94: Alarming (With Factory Setup)
Specifications AccuRad PRD Alarming (with factory setup) False alarm rate (stable background) Less than 2 alarms per 24 hours ◼ and < at 150 nSv/h (15 µrem/h) False alarm rate (varying background) VBS technology minimizes alarms due to ◼ background variations Response time <...
Page 95: Connectivity
AccuRad PRD Specifications Connectivity For Bluetooth pairing without PIN code ◼ Bluetooth To connect to the smartphone application ◼ □ Bluetooth encryption BLE 4.2, AES 128 For maintenance (firmware update), ◼ calibration, charge and external power Environmental, electrical, physical characteristics 9.7.1...
Page 96: Electrical Characteristics
◼ AccuRad Management Center PC software tool available from Mirion Technologies ◼ website Note : For more information about the optional accessories and spare parts, contact your Mirion Technologies representative. 96/124 DOC012721EN-D Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites...
Page 97: 10. Appendix
Bluetooth virtual COM port service: as for USB a COM Port is emulated on host ◼ ends. The AccuRad PRD sends data at 230400 bps. The reception can be configured regardless this speed since the host driver will emulate a link according to its own settings.
Page 98 Appendix AccuRad PRD Example: Data to send from AccuRad PRD to host: 0xAA 0xE7 0xBB 0x11 0x7E Frame: Start Length Payload (XXXXXX) # ! A c c u R a d ! 0x08 0x00 XX XX 0xAA 0xE7 0xBB 0x11...
Page 99: Exchange Between Host And Device
AccuRad PRD Appendix 10.1.3 Exchange between host and device This section describes frame payload (previously noted XXXXX). Each frame type has an ID that allow determining payload content. 10.1.3.1 Data description 10.1.3.1.1 Date and time Type Size (byte) Description 10.1.3.1.3 10.1.3.1.3...
Page 100 Appendix AccuRad PRD 10.1.3.1.3 Time Hour is coded inside a 4-byte word sent in little endian convention. Bits field’s description: Size Description 5 bits Hours 5-10 6 bits Minutes 11-16 6 bits Seconds 17-29 13 bits Milliseconds 30-31 2 bits...
Page 101 AccuRad PRD Appendix 10.1.3.1.4 Data 10.1.3.1.4.1 System state The system state is a synthesis of the device state. It is composed by a 4-byte word sent in little endian convention. Description CountingFault Counting fault on SED PRD and/or SED 15 keV subassembly...
Page 102 Appendix AccuRad PRD typedef union _SystemState_t_ uint32_t All; struct uint32_t CountingFault : 1; /* 00 */ uint32_t TempSensorFault : 1; /* 01 */ uint32_t TempOutOfRange : 1; /* 02 */ uint32_t CheckDateTime : 1; /* 03 */ uint32_t AccumulationEnabled : 1;...
Page 103 AccuRad PRD Appendix 10.1.3.1.4.2 Merged 10.1.3.1.4.2.1 State 1 byte word Name Description 0-1 Origin Measurement origin: 0: Unknown 1: From low range (SED PRD/CsI(Tl)) 2: From high range (SED 15 keV/Pin diode) 3: Both (SED PRD/CsI(Tl) and SED 15 keV/Pin diode) PRD_15keV_Incoherence Measurement from low and high range are not consistent.
Page 104 Appendix AccuRad PRD 10.1.3.1.4.2.2 Measurement Type Size (byte) Description Real Dose rate (µSv/h) Real Count rate (cps) Real Background dose rate (µSv/h) Real Background count rate (cps) Real Level (0-9 display) 10.1.3.1.4.2.3 Data Type Size (byte) Description 1 10.1.3.1.4.2.1 10.1.3.1.4.2.1 State 2 10.1.3.1.4.2.2...
Page 105 AccuRad PRD Appendix 10.1.3.1.4.3 Dose (SED 15keV/Silicon diode) 10.1.3.1.4.3.1 State None 10.1.3.1.4.3.2 Measurement Send the dose integrated since the Accurad startup or the last reset. Type Size (byte) Description Real Dose measurement (µSv) from SED 15keV/Pin diode Real Duration associated with dose measurement = integration duration (s)
Page 106 Appendix AccuRad PRD 10.1.3.1.4.4 Battery 10.1.3.1.4.4.1 State 1 byte word Name Description LevelTooLow Battery level low LevelCritical Battery level reach critical level (shutdown) USB_Connected USB is connected Reserved Reserved Reserved Reserved Reserved Reserved Failure Failure on battery Initialized Battery management phase terminated...
Page 107 AccuRad PRD Appendix 10.1.3.2 Request description 10.1.3.2.1 Device information access (ID = 0) To get device information, the following bytes sequence need to be sent “as is”: 0x7E 0x04 0x00 0x10 0xA7 0x07 0x46 0xE7 Reply payload. Frame ID = 0...
Page 108 Appendix AccuRad PRD typedef struct _Device_Information_t_ char Manufacturer[15+1]; char PN[15+1]; char SN[15+1]; uint32_t FirmwareNumber; uint32_t FirmwareVersion; DateTime_t DateTime; uint8_t TimeZone; }Device_Information_t; 10.1.3.2.2 Device measurement access (ID = 1) To get device information, the following bytes sequence need to be sent “as is”:...
Page 109 AccuRad PRD Appendix 10.1.3.3 Appendix Example using terminal: The easiest way for decoding, if host memory uses little endian convention, is to declare a kind of structure and do a memory copy from received buffer to this structure. 10.1.3.3.1 Device information...
Page 110 Appendix AccuRad PRD ► Time Time ► 0xEE 0x41 0x68 0x06 0x066841EE = 14:15:08.820 71 / 56 72 / 57 73 / 58 74 / 59 0000 0110 0110 1000 0100 0001 1110 1110 5 bits “Hours” = 0 1110 = 0x0E = 14 H 6 bits “Minutes”...
Page 111 AccuRad PRD Appendix 10.1.3.3.2 Device data Request: 0x7E 0x04 0x00 0x11 0xA7 0x1E 0x43 0xE7 Length Answer : 0x23 0x21 0x41 0x63 0x63 0x75 0x52 0x61 0x64 0x21 0x23 0x33 0x00 0x01 0x00 0x81 0xD7 0x86 0x4E 0x3D 0xE8 0x0A 0xE5 0x40 0x13 0x39 0x13 0x3D 0x4F 0x69 0xE8 0x40 0xFE...
Page 112 Appendix AccuRad PRD ► Background count rate (cps) Background count rate (cps) ► 0x4F 0x69 0xE8 0x40 0x40E8694F = 7.262855 28 / 13 29 / 14 30 / 15 31 / 16 ► Level Level ► 0xFE 0xD9 0x61 0x3E 0x3E61D9FE = 0.220558137...
Page 113 AccuRad PRD Appendix System state ► State State ► 0x00 0x00 0x00 0x40 0x40000000 54 / 39 55 / 40 56 / 41 57 / 42 [00] = 0 = counting OK [01] = 0 = Temperature sensor OK [02] = 0 = Temperature OK...
Page 114 The transparent UART TX UUID is: 49535343-1E4D-4BD9-BA61-23C647249616 (properties: Notify, Write, Write without response). When the Bluetooth connection with the AccuRad PRD is established, it is recommended to wait 1s before sending any request to the device else, the communication can fail.
Page 115: Appendix 2: Data Export Examples
</AnalysisResults> </RadInstrumentData> Note: .n42 files are not directly generated by the AccuRad PRD. Use the AccuRad PRD App or AccuRad Management Center PC software tool to generate .n42 files. DOC012721EN-D 115/124 Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites...
Page 116: Xlsx Files Description
Appendix AccuRad PRD 10.2.2 .xlsx files description Excel-compatible datafiles. Their contents vary depending on the type of export. Alarm Dose Failure Info Designation Description history history history history Device part number Device serial number Device calibration date Date of the last calibration of the device...
Page 117 AccuRad PRD Appendix 10.2.2.1 Alarm history file example 10.2.2.2 Dose history file example 10.2.2.3 Failure history file example 10.2.2.4 Information history file example DOC012721EN-D 117/124 Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites The publication, translation or reproduction, either partly or wholly, of this document is not allowed. Format 112175F...
Page 118: Example Of Use Of Dose History And Alarm History
10.2.3 Example of use of dose history and alarm history The AccuRad PRD is set to record dose, average and maximum dose rate (dose history) every 30 minutes if the dose increment is less than 1 µSv or every1 µSv.
Page 119: Appendix 3: Accurad Prd Drawings And Reference Point For Dose Rate Measurement119
AccuRad PRD Appendix 10.3 Appendix 3: AccuRad PRD drawings and reference point for dose rate measurement DOC012721EN-D 119/124 Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites The publication, translation or reproduction, either partly or wholly, of this document is not allowed. Format 112175F...
Page 120: Appendix 4: Calibration Recommendations
Appendix AccuRad PRD 10.4 Appendix 4: Calibration recommendations 30x30x15cm PMMA phantom High Range Low Range The low range detector has a background measurement range of 1mSv/h (100 mrem/h) (Cs-137). To verify its dose equivalent rate response, expose it at an equivalent dose rate between 10% and 80% of the measurement range.
Page 121 AccuRad PRD Appendix Blank page DOC012721EN-D 121/124 Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites The publication, translation or reproduction, either partly or wholly, of this document is not allowed. Format 112175F...
Page 122 Appendix AccuRad PRD Blank page 122/124 DOC012721EN-D Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites The publication, translation or reproduction, either partly or wholly, of this document is not allowed. Format 112175F...
Page 123 AccuRad PRD Appendix DOC012721EN-D 123/124 Publication, traduction et reproduction totales ou partielles de ce document sont rigoureusement interdites The publication, translation or reproduction, either partly or wholly, of this document is not allowed. Format 112175F...
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