RTI Cobia Flex R/F User manual

Cobia Flex R/F
User Manual
English - v2014.3A

Cobia Flex R/F - User Manual 2014.3A
2
NOTICE
RTI Electronics AB reserves the right to make changes to the Cobia
Flex R/F and the information in this user manual without prior notice.
RTI Electronics AB assumes no responsibility for any errors or
consequential damages that may result from the use or
misinterpretation of any information contained in this user manual.
Copyright © 2011-2014 by RTI Electronics AB. All rights reserved.
The content of this document may not be reproduced for any purpose
other than supporting the use of the product, without prior
permission from RTI Electronics AB.
User Manual Downloads
www.rti.se/downloadsYou can download user manuals here:

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Cobia Flex R/F - User Manual 2014.3A
Contents
..............................................................................................................
4
1. Product Overview
............................................................................................................1.1 User Interface 6
...........................................................................................61.1.1 Screen Description 6
...........................................................................................81.1.2 Keyboard Operation 8
..............................................................................................................
9
2. Getting Started
............................................................................................................2.1 Before Starting the Cobia for the First Time 9
............................................................................................................2.2 Charging the Battery 9
..............................................................................................................
10
3. Performing a Measurement
............................................................................................................3.1 Measuring with the Internal Detector 10
............................................................................................................3.2 Measuring with an External Detector 11
............................................................................................................3.3 Measuring with a Light Probe 12
............................................................................................................3.4 Measuring with the Optional Internal MAS 13
...........................................................................................143.4.1 Connecting the MAS Cable 14
...........................................................................................153.4.2 Tube Current Safety Precautions 15
..............................................................................................................
16
4. Maintenance
............................................................................................................4.1 Scheduled Calibration 16
............................................................................................................4.2 Updating the System 16
............................................................................................................4.3 Changing the Battery 17
..............................................................................................................
17
5. Technical Data
............................................................................................................5.1 Battery Charging Details 17
............................................................................................................5.2 Battery Warnings 17
............................................................................................................5.3 Communicating with a PC 18
..............................................................................................................
18
6. Troubleshooting
..............................................................................................................
19
7. Standards and Compliances

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1 Product Overview
TOP VIEW
BOTTOM VIEW

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Cobia Flex R/F - User Manual 2014.3A
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Name
Description
1
Display
Cobia display. See section Screen Description
2
Up arrow button
Used to move up in the user interface. See section Keyboard
Operation
3
Down arrow
button
Used to move down in the user interface. See section Keyboard
Operation
4
Left arrow button
Used to move left/back in the user interface. See section Keyboard
Operation
5
Right arrow
button
Used to move right or make a selection in the user interface. See
section Keyboard Operation
6
Menu and On/Off
button
Used to start and power off the Cobia, and display the system menu.
See section Keyboard Operation
7
Positioning
marker
Marks the depth of the radiation measurement surface
8
Measurement
surface
Circular entrance surface for the measurement sensors
9
Status indicator
Indicates functional status of the Cobia
10
External probe
input
Used to attach external measurement probes
11
Battery charging
indicator
The orange battery charging indicator is lit when the battery is
charging. See section Battery Charging Details
12
Optional MAS
connector
Used to attach invasive MAS cable (selected models). See section
Connecting the MAS Cable
13
Micro-USB
connector
Used both to charge and to connect the Cobia to a computer. See
sections Charging the Battery , Updating the System , and
Communicating with a PC
14
Measurement
center marking
Marks the center position of the radiation measurement on the
bottom side
15
Product label
Displays detailed information about the product and model (on the
bottom side)
16
Reset hole
Used to do a hardware reset of the Cobia. Marked "RST"(on the
bottom side)
6
8
8
9
8
8
17
14
9 16
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1.1 User Interface
1.1.1 Screen Description
Astatus field is displayed at the top of the screen. The left side of the field
shows the Radiation or Measurement Quality Code and a description of the
active range (1).The middle part of the field displays icons for when power
is supplied and when an external probe and/or internal MAS cable is
attached as well as warning symbols for when any settings are set to non-
standard values (2). The right side of the field displays an icon for external
power supply and an indicator for the battery level (3).
At the bottom ofthe screen a simple user guide is displayed. For each view,
the buttons that are functional in this view are shown, together with a
short text describing the function of the buttons (4-6).
Single view
In single view, only one active parameter is
displayed, represented by the value and its
unit. Each unit is shown by a specific color.
Pressing the up / down arrow buttons will
change the active parameter.
When using the internal tube current socket
(MAS) or an external detector (EXT) an
indicator will appear in the leftmost side of the unit field (not shown).

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Cobia Flex R/F - User Manual 2014.3A
Located to the left of the value, two symbols may be visible:
1. A play symbol (triangle) is visible during the
measurement. It is filled (green) during the radiation
detection, and will then stay contoured while the Cobia
accepts continued measurement during Restart Delay.
1B. When using the optional parameter cycling, a
rotating indicator will appear just above the play
symbol.
2. A pulse indicator is shown below the play symbol.
This indicator is turned on when pulses are detected,
resulting in display of additional pulse parameters.
List view
In the List view, all the available parameters
are shown simultaneously. The active
parameter (displayed in Single view)is
indicated in color.
If a measurement is started when the Cobia
is in List view, the display will switch to
Single view during the measurement
and then return to List view after completion. Parameters from MAS or EXT
are marked accordingly.
Note! The available parameters may vary depending on the model of the
Cobia. The example picture shows a pulsed measurement with Cobia Flex
R/F kV & Dose.
Main Menu view
The Menu view displays a set of available
functions, selected by pressing the right
arrow button. Reset Measurement zeroes and
resets the meaurement. Prev. Measurements
recalls the results of earlier measurements.
Settingsis for viewing and modifying the
measurement settings. Preferences is for

Cobia Flex R/F - User Manual 2014.3A
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viewing and adjusting personal preferences. Any setting change that can
affect the measurement results will be shown in the status field (top of
screen). System Info gives detailed information about the Cobia, needed
during support. Power Offturns the Cobia off. When using an external
detector or probe, there will be an extra menu item, Ext.Detector, that
displays detector information and settings as described below.
Select External Detector Calibration
When an external detector containing more
than one calibration is connected to the
Cobia, a selection screen will be shown
(left).
For later calibration changes, the selection
screen is also available on the Main menu.
1.1.2 Keyboard Operation
Menu and On/Offbutton
If Power = Off: Press once to start the Cobia
If Power = On: Press once to display the menu. Press
and hold to switch off the Cobia
In Menu: Closes the menu
Up and Down arrow buttons
In Single view: Changes the active parameter shown.
In List view: Changes the highlighted (active)
parameter
In Menu: Moves the marker
Right arrow button
In Single view: Switches the display to List view
In Menu: Activates the marked menu item
In Setting or Preferences menus: Changes the set
value (displayed in yellow) or activates the menu
item

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Cobia Flex R/F - User Manual 2014.3A
Left arrow button
In List view: Switches the display back to Single view
In Menu: switches the display back to the previous
menu or screen
2 Getting Started
2.1 Before Starting the Cobia for the First Time
Before using the Cobia for the first time, the unit has to be charged for 16
hours. See Charging the Battery .
2.2 Charging the Battery
The battery can be charged in two ways:
Via the USB cable connected to a PC. The charging is not disturbed by
communication between the PC and the Cobia.
Via the USB cable connected to the included external charger.
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3 Performing a Measurement
3.1 Measuring with the Internal Detector
The pictures below show how to position the Cobia in different types of X-
ray units.
A=Radiography X-ray unit B =Dental X-ray unit
1. Start the X-ray unit.
2. Prepare the X-ray unit for test of desired settings.
3. Start the Cobia.
4. Place the Cobia under the X-ray source at a clinically relevant distance
(typically 50 - 100 cm from the source).
5. Make sure that the radiation field covers (at least) the entire Cobia
detector surface.
6. Start an exposure.
7. When the measurement is over, the recorded values are by default
cycled on the Cobia display. Press the Right arrow button to go to the List
view for an overview.
8. Compare the parameters displayed by the Cobia with the test settings
for the X-ray unit.
9. Record the results.
10.To repeat, adjust settings and start over from Step 6.