RTI Piranha, Reference Manual, Page: 143 / 181

5. Measurements with the Piranha System
Tube Current Probes
2014-06/5.5C
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Piranha & QABrowser Reference Manual
1. Connect the MAS-1 probe to the X-ray generator as described in the MAS-1 User's
Manual.
2. Connect the MAS-1 probe to the external probe input.
3. Set up the Piranha and the handheld computer according to the description in Setting
Up the Piranha .
4. In the QABrowser select type of measurement.
5. Select mAs from the menu.
6. The real-time display for mAs is now
displayed. Set the generator. Tap Reset .
Make an exposure.
7. The figure to the left shows the result from
an exposure with 80 kV, 50 ms, and
100 mA. The exposure time is measured
with the external probe input.
If you would get a message as shown in the
figure to the left, the current is floating in the
wrong direction in the mAs probe. Switch the
two connectors that are connected in the
mAs measuring socket, tap
Reset and make
a new exposure.
Since the MAS-1 probe is connected in the X-ray generator false triggering may occur
due to electrical noise when the pre-heat is started and the anode starts to rotate. If you
get incorrect or inconsistent results try the following:
First start anode rotation without firing the exposure.
While the anode is rotating do a
Reset or press the corresponding button. Make
the exposure when the reset procedure is finished.
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