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Measure
2021.5B
RTI Scatter Probe User's Manual
21
The displayed values after end of measurement for Air Kerma (Gy) and Ambient Dose Equivalent H*(10) (Sv) represent the
integrated radiation from start to stop of measurement.
The peak rate (Air Kerma rate and H*(10) rate) parameters show the highest identified value between start and stop of
measurement.
The rest of the parameters (rate, mean energy, HVL) show the values from the last complete two-second period. I.e. a time
frame slightly before end of measure.
If the measuring time is shorter than two seconds, all displayed values will represent the entire measurement.
3.2 Measurement Settings
Meter Adjust
Here general measurement settings for the RTI Scatter Probe are shown. In Quick Check these settings are found under
Meter
Adjust
.
For a graphical overview of the settings, see section Waveforms and Triggers.
Measure Mode
Normal (auto trig)
The trig level of the Scatter Probe is NNN mGy/h (NNN µSv/h). When the irradiation rate is
expected to be higher than the trig level for the entire measurement Normal mode is
convenient to use, since no manual action is needed. After trig off the Scatter Probe and
Ocean will get ready for a new measurement.
Free run (manual trig)
When Free run mode is enabled the measurement is manually started and stopped. Either
from Ocean (Start/Stop) or from the trig button on the Scatter Probe.
Timed
When Timed mode is enabled the measurement is manually started. The measure time is set
by the
Measuring time
. The measurement can be interrupted from Ocean (Stop).
Measuring
time
is user-selectable from 1 to 300 s.
Settings
Measuring time (Timed mode) The measurement window for a Timed measurement.
Default setting is 10 s.
Measuring area
The large 100 cm
2
or the small 10 cm
2
detector area.
Default setting is Large.
Activate Alarm
Yes or No
Default setting is No.
Alarm-level
The Alarm-level defines the scale and signal for the LED bar as well as the crackling (GM-
counter type) sound. The Alarm-level can be set in units of Gy or Sv in the range 0.01- 25
mGy/h, or 0.02 - 50 mSv/h. Default setting is 1 mGy/h.
Sound on/off
On or Off.
Default setting is On.
Summary of Contents for Scatter Probe
Page 2: ...2021 5B RTI Scatter Probe User s Manual...
Page 3: ...RTI Scatter Probe...
Page 6: ...2021 5B RTI Scatter Probe User s Manual...
Page 8: ...2021 5B RTI Scatter Probe User s Manual...
Page 9: ...Chapter 1 Introduction...
Page 11: ...Chapter 2 Product Overview...
Page 15: ...Chapter 3 Measure...
Page 22: ...2021 5B RTI Scatter Probe User s Manual...
Page 23: ...Chapter 4 Measurement Principles Theory...
Page 27: ...Chapter 5 Hardware and Specifications...
Page 33: ...Chapter 6 Maintenance...