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Frequently Asked Questions

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I get too low readings with my Light detector. Why?

Remove the luminance tube and ensure that the white illuminance window is clean. You can clean it with a damp cloth. If the problem persists, fill in a Service Request and send the detector for service.
I have connected the mAs cable but don't get any readings. What can I do?

Can I charge the base unit with the USB cable to my computer?

The fastest way to charge the base unit is to use the supplied charger. You can also charge with USB cable connected to a computer or a USB charger, but this will take longer.

If an aspect of the dosimeter badge such as the clip breaks, do I have to replace the entire badge?

The i3 has improved wear-ability with a replaceable reinforced plastic clip. The i2 had a metallic clip that could not be replaced.

Do I need to send the dosimeter in for calibration?

No, the dosimeter is designed for maintenance-free usage throughout its lifetime.

How do I change the dose unit?
  1. When the instrument is in measurement mode, press SELECT (long press) until "Waiting... Aborting measurement" is shown.
  2. In the SETUP MENU, step (short press) to "Dose unit" and press SELECT until units are shown. Step to the desired unit and press SELECT until SETUP MENU is shown. The unit is now changed.

How do I change the dose unit

Note: If only Gray (Gy) is available, your instrument has been configured to comply with German regulations where the unit Röntgen (R) is not allowed.

What do I do if I need to keep testing when I get a low battery indication on the VT305?

The VT305 can be connected to mains power using the universal poweradapter and the appropriate prong-set (matched to the mains powerreceptacle). The power adapter connects to the VT305 via the USB cable.Alternatively, if a computer is being used during testing or documentation,you can connect the VT305 directly to the computer via the USB cable. Bothpower and data exchange are provided.

I want to measure on a panoramic dental X-ray machine. Any advice?

Panoramic dental machines can be challenging to measure on, primarily since the X-ray beam is narrow. Therefore, the positioning of the active sensor area is crucial.

Use DENT or R/F sensor.

Position the sensor in the exact center of the X-ray field, where you have the highest dose.

The positioning can be sensitive down to 0.1 mm. Use the RaySafe X2 panoramic holder to slide the sensor horizontally with high precision. Each mark on the scale represents 0.2 mm.

Panoramic Holder

 

For details on how to use the panoramic holder, see the instruction video in our video library.

Can Dose Manager be used with the new i3 dosimeters?

Dose Manager can be used with the new i3 dosimeters if you collect the dose information from your Real-time Displays using a network connection or with a USB memory. The i3 dosimeters unfortunately cannot currently be connected directly to Dose Manager by the USB cable.

Does the system sound an alarm when dose gets high?
  1. No, the feedback is visual. Because of this, it is best for the Raysafe Display to be located in an easily visible location for the staff.
I have problems with the communication between base unit and detector. What can I do?

Check that the cable is properly connected. Try another cable.

How do I change language in the base unit?

Swipe right from the home screen to access the setup. System language is found under X2 Base Unit. You will be asked to restart the base unit for the setting to take effect.

The colors distinguishing the badges is helpful but is it possible for us to put names on the badges too? That would be less confusing.

The i3 has room for naming, whereas the i2 does not.

How long does the battery in the dosimeter last?

The RaySafe Real-time Dosimeter: Approximately 1 year of normal use. The battery can be replaced. See the Installation and service manual for guidance.

The RaySafe i2 dosimeter: Typically 3-5 years, depending on usage. If the battery is out, contact your RaySafe representative or RaySafe Support Contact.

What is the difference between R/F high and R/F low, and how do I use them?

R/F high can be used for most measurements and is required for measuring kVp (as opposed to kV).
R/F low is optimized for low radiation intensity, typically during fluoroscopy measurements behind a phantom.

The screen size on the VT305 is very small. What do I do if I need increased screen resolution?

Use the VT305 with the Ansur VT Plug-In. You can use either a ready-for-usetest procedure or drag and drop one or more test elements from the Plug-Inonto the test template workspace in the Ansur software authoring screen(see Ansur Executive Operators' Manual for more information).Questions and Answers6045 Cochran Rd, Cleveland, OH 44139 USA | Tel 440.248.9300 | Fax 440.349.2307 | Email: [email protected] | www.flukebiomedical.com

Does Dose Viewer work with either the i2 or i3?

The Dose Viewer version 1.1.13.0, delivered with the RaySafe i3, is backwards compatible with the RaySafe i2. Older versions of Dose Viewer need to be updated to support i3 Real-time Dosimeters.

I want to use my Xi View Excel templates with X2. Is that possible?

The default Excel export format in X2 View is compatible with Xi View.

Can we show the same information as on the Real-time Display on any hospital monitor?

Unfortunately, this is not possible with the RaySafe i2/i3. This is something that we look in to for the future but currently only the Real-time Display can be used to visualize the exposure situation in real time.

How long will idle badges take to go to sleep?
  1. i3 badges will enter sleep mode after 9 minutes of not detecting any movement.
My ThinX shows this screen, why?

ThinX Screen

  • If you just replaced the battery, this means that your ThinX is starting up. Be patient and wait for a while.
  • If the screen appears when you are exposing the ThinX to radiation, you need to replace the battery (model CR2450). Follow the instructions in the user manual: ThinX RAD or ThinX Intra. We recommend using a battery from GP Batteries.

ThinX Battery

I have problems with the connection between the instrument and Xi View when using USB cable. What can I do?
  • Check that you are running the latest version of Xi View and remove older versions from your computer.
  • During installation, make sure to tick the box "Install Windows 8 USB driver for serial port adapter".

Xi View

  • In Xi View, select "ATEN USB to serial bridge" in the lower right corner. You may need to re-select it.

USB to serial bridge

  • In Xi View, press the "Start" button in the lower right corner and wait until the dot beside it turns green.
  • If you have a Solo instrument, check that you have the RaySafe Solo PC kit.

Note: If your Solo instrument came with serial cable and usb-serial converter, it has the PC kit. If you wish to add the PC kit, contact Customer Service.

How do I change unit for dose measurements?

Swipe right from the home screen to access the setup. Press the name of the currently connected sensor to find the unit setting.

Note: If only Gray (Gy) is available, your instrument has been configured to comply with German regulations where the unit Röntgen (R) is not allowed.

Can the RaySafe i2 and i3 be used together with Philips DoseAware?

Yes, they can, i2 and i3 dosimeters will show up on DoseAware base station screens and DoseAware dosimeters will show up on the i2 and i3 base stations screens. As the icons used for dosimeters are not the same for i2/i3 and DoseAware, the dosimeters might however appear differently.

How do I find the dose history?

To access the dose history recorded in the Real-time Display, tap on the row for your dosimeter on the display.

To access the internal dosimeter memory, connect the dosimeter to a computer running Dose Viewer.

How do I get kVp on my R/F detector?

The RaySafe Xi calculates kVp on the R/F high sensor if the intensity is high enough (around 10 mGy/s), otherwise kV average will be displayed. If the intensity is too low and you have no possibility to increase the tube current (mA), move the detector closer to the X-ray source.
Note: If your signal level is well above 10 mGy/s and you still do not get kVp, go to the SETUP MENU, select kVp mode, and make sure that kV/kVp is selected.

How do I select high flow or low flow measurements on the VT305?

The VT305 uses a single measurement channel for all gas flow assessments.The display's (numeric and waveform screens) are auto-scaling and autorangingfor simple connection and use.

Is there a difference in the i2 and i3 batteries?

The RaySafe i3 has a customer replaceable battery, which prolongs the product life cycle up to 10 years. The RaySafe i2 badge needs to be replaced when the battery ends in <5 years.

Is X2 MAM suitable for all mammography machines?

Yes, all common mammography machines are supported. Just connect the X2 MAM sensor and measure to get dose, HVL and time on any beam quality. If you also want the tube voltage (kVp), you must select an anode/filter combination. Swipe left from the home screen to select.

Take a look in the Mammography coverage table to see which anode/filter combinations the X2 can give a kVp value for.

Can I add i3 badges to my Real-time dosimeter system?

Yes, additional badges are available for purchase.

Can you configure i3 badges to be always on?
  1. Yes, i3 badges can be set to stay on all the time. This will drain the battery faster, however.
I have problems with my Bluetooth connection. What can I do?

Read "SETUP OF BLUETOOTH COMMUNICATION" on page 6 in the Xi View User Manual. If you have established the Bluetooth communication as described in the User Manual but still have problems, try turning off any programs on the computer that may interfere with the Bluetooth connection. On the computer side, there are various reasons for unstable Bluetooth connection such as incompatible hardware/software or environmental radio disturbances during measurements.

How do I measure with X2 on an AMX4+?

Position and measure as usual. The X2 has full AMX4+ support.

How can I update my current Dose Viewer application for my new i3 dosimeters?

Please visit www.RaySafe.com/i3/downloads, download and install the latest Dose Viewer that support i2 and i3 dosimeters.

Can I use the dosimeter for measurements in the primary X-ray beam?

No, the intended use for the i3 and i2 systems are to measure scattered radiation only.

Why can't I measure kVp on all beam qualities with my MAM detector?

It is enough to measure kV for one beam quality per machine, since the set kVp is independent of anode material and filtration. The Mammography coverage table lists what you can measure on different machines.

What is the difference between the Compliance parameter I am used to seeing on the VT PLUS and the Cstat parameter shown on the VT305 display?

The Compliance parameter shown on the FULL (full test) numeric display ofthe VT PLUS is a dynamic value calculated from tidal volume and pressurevalues breath-by-breath. The Cstat parameter shown on the VT305 is a staticcompliance parameter calculated using the formula Cstat = VT / (Pplateau -PEEP) where Pplateau is the Inspiratory Pause Pressure. Not all ventilatorsprovide an inspiratory pause/hold function. If there is no plateau pressure,the VT305 Cstat displays"---" since a division by zero would result.

Is EMC interference, from devices such as cell phones, still an issue with real-time dosimeter badges?

The EMC immunity in the i3 has been significantly improved over the i2, reducing possible interference.

How many dosimeters can be shown at the same time on a Real-time display?

Real-time measurements from up to eight dosimeters are shown simultaneously on the screen. The i3 has a sleep mode so only active dosimeters user show on the screen. The i2 dosimeters are always on and shown on the screen when in range.

What do the symbols on the Light sensor wheel mean?

symbols on the light sensor

Display: Luminance mode. For contact measurements on a display or view box.

0: Zero adjustment.

Light bulb: Illuminance mode. For measurements of ambient light or intensity from a collimator lamp.

In brief, what are the five best things about the i3 versus the i2?
  1. Prolonged life cycle
  2. improved EMC immunity
  3. better measurement specifications
  4. automatic sleep mode
  5. improved wearability.
How do I use the DXR+ on mammography machines?

The DXR+ works well placed on the examination table. Use as high kV as possible.

Note: Do not position the DXR+ on top of a magnification table, since the signal is too low there.

Why do I get "CRC error" in Xi View when using Bluetooth connection?

CRC error means that part of the data has been lost or altered in transit. This can happen when the distance is too long, or if something is interfering with the signal. Create a clear line of sight between the base unit and computer, or use a shorter distance.

How do I view waveforms in full screen on my base unit?

Press the desired parameter from the home screen to go to full screen mode, then swipe left for the waveform. Waveforms are available for kVp, dose rate and mA.

If I update the Dose Viewer software, can I still use my i2 badges?

Yes, you can.

When I connect the CT detector I don't get past "Stabilizing ". What can I do?

Place your CT detector on a flat surface and restart the base unit. Do not touch or move the detector. If the "Stabilizing" message does not disappear within 5 minutes, fill in a Service Request and send the detector for service.

How do I save measurements?

To save measurements press and hold the "O" button at the upper rightcorner of the VT305 display until the "Data saved toDATAxx.CSV" message is displayed on screen. This meansthat the measurement values have been saved to the microSD card in the VT305.

How good is the measurement performance?

The i3 measurement performance is an improvement over the i2, and includes angular reception making it more accurate.

Can I install the Real-time Display in another room than the lab? What is the communication range of the display?

The real-time display can be installed anywhere, it only needs a power outlet (network connection is optional). The dosimeters communicate with the display via radio. The radio communication range depends on the local environment and the Real-time Display settings (Service Manual) but is normally about 5-15 meters.

Where can I find previous measurements?

The X2 Base Unit can store several thousands of measurements.

  • Swipe down from the home screen to see previous measurements.
  • If the base unit has been turned off, or if you have switched to a different sensor, look in the measurement archive: Press the menu button and then Measurement archive. Select the session you want to take a look at.

X2 Interface

  • You can also use X2 View on a computer and select Import from Base Unit in the File menu and select from the calendar. See the X2 View manual for more details. 
Can I replace the battery in the DXR+ myself?

No, you have to send it to RaySafe for battery replacement. Fill in a Service Request to get it done.