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RaySafe Xi User Manual – Tips and Tricks
Why is the total filtration sometimes different from the flitration stated by the X-ray manufacturer?
This may be caused by the 10 % uncertaincy in the measurement of the total filtration or by additional filtration
not included in the filtration specification given by the X-ray manufacturer.
TROUBLESHOOTING
When turned on, the RaySafe Xi briefly shows "Battery down" and refuses to start.
Please charge the battery, see chapter Getting Started.
Values do not show up in RaySafe Xi view.
Make sure that all cables are properly connected and that you have:
• established a Bluetooth connection (password 1234).
• selected the correct COM port in file/settings menu of RaySafe Xi view.
• pressed on the RaySafe Xi view Start button.
The RaySafe Xi shows only half of the expected mAs value.
If you are measuring on a generator with AC signal on the mAs measurement point, you will need a rectifier
(optional) to get correct values.
When the RaySafe Xi with CT detector is turned on, the instrument displays "Offset out of range" after
displaying "Stabilizing..." for a long time.
This means that the ionization chamber current fails to reach a stable level when the instrument is turned on.
Please make sure that:
• the chamber is not irradiated during stabilization or offset adjustment.
• you are not operating the instrument outside its specified temperature range.
If the problem persists, your instrument might be in need of a repair. Please contact RaySafe Service
department.
I get "Offset adjustment out of range".
Make sure that:
• you are not operating the instrument outside its specified temperature limits.
• you are not irradiating the detector during the offset adjustment phase (when values on display are
blinking).
When used with pulsed sources it may be necessary to select a longer Calc. delay to avoid end trig and offset
adjustment during the measurement (see also next problem).
The RaySafe Xi R/F or mammography detector end trigs during exposure.
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