RTI Piranha Getting Started

2018-06-20/1.11A Piranha/Cobia & Quick Check Getting Started
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Quick Check
Meter setting
Description and use
Beam Correction
factor
General (user-defined) correction factor used for all exposure related parameters
measured with the internal detector.
Beam Correction
factor
(External)
General (user-defined) correction factor used for all exposure related parameters
measured with the external detector.
Calibration
(External)
Calibration for the external probe.
Measuring mode
You can select between Normal or Timed
Normal =use this measuring mode for exposures and fluoroscopy
Timed = meter measures during a time you specify
(for more information see table below)
Measurement
time
(Timed mode only)
Measuring time when Timed mode is used.
AMX-4
Waveform type
Check this box when you measure on a GE AMX-4.
Total filtration
(External)
(R/F, dental only)
The filtration used the external RTI Dose Probe to do energy compensation.
Trigger level
(time)
This is the level used for the time measurement. You can use this if you want for
example to avoid pre-pulses to be included in the exposure time.
Normalized
exposure and
exposure rate
The square-law is used to normalize the dose and dose rate to a distance (SSD)
different from the measuring distance (SDD) when the box is checked.
How to use the different calibrations (only one calibration is available for Cobia):
Code
Calibration
Usage
R1
W/3 mm Al
General radiography, fluoroscopy and dental
There are two different measuring modes available using the Cobia. They are as follows:
Measuring mode
Description and use
Normal
The Normal mode is used for short and long (fluoro) exposures. In this mode, your
meter will automatically sense if there is a signal and when it is above a certain trigger
level. If the exposure is long, the displays/grid will be updated with new data every 2
seconds. If the exposure is short, the results are displayed as soon as the trigger is
off.
Timed
The Timed mode setting measures during a pre-defined time period. Measurements in
Timed mode must be started manually. This measuring mode is very useful when you
want to measure a very low signal. You can use the "very high" sensitivity setting in
Timed mode and it will further improve the meter's capability to measure very low
signals.
You can read more about meter settings for Cobia in the topics Meter Adjust and Different measuring modes.

RTI Piranha Specifications

General

Brand	RTI
Model	Piranha
Category	Multimeter
Language	English