IMI Rad 100 Manual de usuario
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[100372_81375_RAD100 Manual 1.4-2:9:21.02_Cover.pdf]
Operation Manual
Personal Radiation Detector
2023/05/11 11:42:18
[100372_RAD100 Manual_Inside Pages, Modified May 8 2023.pdf]
IMI-International Medcom, Inc.
All rights reserved.
© 2015, 2016, 2017,2018,2019, 2020, 2021
Manual Revision 1.4, February 9, 2021
Thank You for Purchasing this Instrument from IMI
We trust it will provide you with many years of
useful service. Please contact us if we can
answer any questions or provide assistance in
your radiation detection projects.
Please remember to use caution when handling
or working around radiation sources and
radioactive materials.
[100372_RAD100 Manual_Inside Pages, Modified May 8 2023.pdf]
Contents
1 Introduction ..........................................................................1
How the Rad 100 Detects Radiation.......................................1
Precautions............................................................................2
2 Features ................................................................................3
The Display............................................................................4
The Switches .........................................................................5
The Detector .........................................................................6
The Input/Output Ports ..........................................................6
3 Operation..............................................................................7
Units of Measurement ...........................................................7
Starting the Rad 100..............................................................7
Operating in the Dose and Count Rate Modes.......................7
Operating in Total/Timer Mode ..............................................8
Operating Ranges and Response Times................................10
The Utility Menu..................................................................12
Interfacing to an External Device..........................................13
4 Common Procedures ...........................................................14
Establishing the Background Count .....................................14
Environmental Area Monitoring ...........................................15
Checking an Object .............................................................15
5 Maintenance .......................................................................16
Calibration ..........................................................................16
Troubleshooting and Service ................................................19
6 Basics of Radiation and Its Measurement .............................21
Ionizing Radiation................................................................21
Measuring Radiation............................................................23
Radiation Measurement Units..............................................24
Higher Than Normal Readings .............................................24
Appendix: Technical Specifications ...........................................26
Limited Warranty .....................................................................28
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[100372_RAD100 Manual_Inside Pages, Modified May 8 2023.pdf]
[100372_RAD100 Manual_Inside Pages, Modified May 8 2023.pdf]
Rad 100
1
1 Introduction
The Rad 100 is a health and safety instrument that measures alpha,
beta, gamma, and X-ray radiation. Its applications include:
• Monitoring possible radiation exposure while working with
radionuclides
• Ensuring compliance with regulatory standards
• Checking for leakage from X-ray machines and other sources
• Screening for environmental contamination or environmental sources
of radioactivity
• Connecting to a computer or data logger to record and tabulate your
data
How the Rad 100 Detects Radiation
The Rad 100 uses a Geiger-Mueller tube to detect radiation.
The Geiger tube generates a pulse of electrical current each time
radiation passes through the tube and causes ionization. Each pulse
is electronically detected and registers as a count. The Rad 100
displays the counts in the mode you choose: microsieverts per
hour (µSv/hr), counts(CPM), or total counts. If conventional
units (mR/hr) is preferred you can easily convert units displayed
in the Utility Menu.
The count or dose rate displayed by the Rad 100 updates every 3
seconds and fluctuates due to the random nature of radioactivity. Use
the Total mode feature on the instrument to get a highly accurate,
unfluctuating reading by taking a measuremement for a longer timed
period. For more information, see “Operating in Total/Timer Mode”
in Chapter 3.
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[100372_RAD100 Manual_Inside Pages, Modified May 8 2023.pdf]
2
Rad 100
Precautions
To keep the Rad 100 ingood condition, handle itwith care and
observe the following precautions:
•
Do not contaminate the Rad 100 by touching it to radioactive
surfaces or materials.
• Do not leave the Rad 100 in temperatures over 122° F (50° C) or
in direct sunlight for extended periods of time.
• Do not get the Rad 100 wet. Water can damage the circuitry
and the coating of the mica surface of the Geiger tube.
•Do not put the Rad 100 in a microwave oven. It cannot measure
microwaves, and you may damage it or the oven.
• If you expect to not use the Rad 100 for longer than a few months,
remove the battery to avoid damage from battery corrosion.
•
Change the battery when the battery indicator appears on
the display.
[100372_RAD100 Manual_Inside Pages, Modified May 8 2023.pdf]
Rad 100
3
2 Features
information on how to use the Rad 100, see Chapter3, “Operation.”
The instrument counts ionizing events and displays the results on
the
liquidcrystal display (LCD) (4). You control which unit of
measurement
is shown by using the Mode switch.
When the Rad 100 is operating, the red count light (1) flashes
each time a count (an ionizing event) is detected.
1Count
Light
2Cal/Probe
Input Port
3Output Port
4LCD
5Mode
Switch
6On/O/
Audio
Switch
End Panel
7+, –, and
Set Buttons
8Alpha
Window
The Rad 100 measures alpha, beta, gamma, and X-radiation.
This chapter briefly describes the Rad 100's functions. For more
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[100372_RAD100 Manual_Inside Pages, Modified May 8 2023.pdf]
4
Rad 100
The Display
Several indicators on the LCD show information about the mode setting,
the current function, and the battery condition.
• e numeric display (A) shows the current radiation level in the unit
specied by the mode switch setting.
• A small battery (B) appears to the le of the numeric display to indicate
low battery voltage.
•An hourglass (C) appears during a timed count.
•TOTAL (D) appears when the Rad 100 is in Total/Timer mode.
•X1000 (E) appears when the radiation level ishigh. Multiply
reading by 1,000 when this symbol is present.
•
AVG (F)appears when the Rad 100 is showing the average reading
for a timed count.
•CAL (G) appears while you are calibrating the Rad 100.
•SET (H) appears when you are setting the Timer,the calibration
factor, or working in the Utility Menu (the numeric display shows the
setting being adjusted instead of the current radiation level).
The current unit of measurement (I)—CPM, CPS, mR/hr, or µSv/hr—is
displayed to the right of the numeric display.
•
MENU (J) appears when you are in the Utility Menu.
RANGE:Full (K) appears when the radiation level goes beyond the
range that can be displayed.
1Count
Light
2Calibration
Input Port
3Output Port
4LCD
5Mode
Switch
6On/Off/
Audio
Switch
End Panel
7+, –, and
Set Buttons
8Alpha
Window
D
Total Mode
C
Timer
B
Low Battery
Indicator
A
Numeric
Display
H
Timer or
Calibration
Set Mode
I
Units of
Measurement
J
Menu
K Range Full
E
X1000
Mode
G
Calibration
Mode
F
Average
•
•
[100372_RAD100 Manual_Inside Pages, Modified May 8 2023.pdf]
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