kVp, mAs, mA, Dose and Exposure Time Meter
All Purpose X-ray Meter
Model UXI – Universal X-Ray Instrument
This Instrument Measures kVp, mA, mAs,
Dose, HVL and Exposure Time
The new Universal X-ray Instrument (UXI) is capable of measuring x-ray kVp, mA, mAs, Dose, HVL
and exposure time. One exposure is needed for kVp, mA, mAs and dose. Three exposures are needed
for an accurate HVL measurement. The built in HVL calculator is used to calculate HVL. Each UXI
comes with a 7 inch (178 mm) Android tablet. With the programmable delay, the unit is capable of
measuring kVp for exposure times as low as 16 milliseconds. This allows shorter exposure times
minimizing xray exposure and wear and tear on the x-ray head. The kVp measurement circuit and
control program have been greatly improved compared to our other instruments. Accurate kVp
measurements can be made for a wider range of x-ray intensity with less dependancy on distance from
the x-ray head.
The UXI is connected via a 14 foot (4.3 meter) cable to the tablet.
Applications include verification of peak x-ray voltage, constancy checks, calibration of x-rays, and
quality assurance measurement of exposure time. The unit is also used for half value layer
determination, troubleshooting and repair of x-rays, and quality control.
All units come with a Certificate of Calibration. Yearly calibration is suggested.
The introduction of the UXI allows service personnel to carry one instrument rather than a Dose Meter,
mAs Meter and a kVp Meter.
New Improved Instrument
In addition to combining several proven instruments into one device, significant improvements have
been made in the circuitry to improve accuracy, ease of use and range. There is a graphing capability
that shows the x-ray waveform for each exposure.
New Software Operating System
Improvements have been made in both the internal microcomputer program in the UXI front end and in
the tablet to facilitate faster measurements and fewer x-ray exposures. There is no minimum exposure
time requirement for mA / mAs measurement. The mA and mAs measurements are more accurate
because we are measuring the current for the entire x-ray exposure.The minimum exposure time
needed for kVp measurements has been reduced to 16 ms. This allows more flexibility when the x-ray
is set up based on mAs rather than exposure time. This new feature virtually eliminates sources of error
when certain techniques result in short exposure times. The shorter exposure times also give you less
wear and tear on x-ray equipment as well as less x-ray exposure to test personnel.
This instrument is capable of measuring dose, kVp, mA, mAs and exposure time in one x-ray exposure.
The HVL measurement requires three exposures, two with different thicknesses of Aluminum filtration.
The program in the Android tablet can be upgraded as new features are added by connecting to internet.
Users will be notified by email when upgrades are available.
Features
• Combines several
instruments
• kVp
• mA and
mAs
• dose
• x-ray
detector and
oscilloscope
• Easy to use
• No need to set for
AC / DC
• Self-resetting
• mA is stored
permitting short
exposures
• Measures kVp, mA,
mAs, dose and
exposure time
simultaneously
• kVp is noninvasive
• AC and DC x-rays
• High accuracy
• Battery operated
• Two year warranty
• Compact size
• Durable ABS
plastic case
• Custom carrying
case
Typical Applications
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•
•
•
•
•
•
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Measurement of exposure
Verification of peak x-ray voltage
Constancy checks
X-ray calibration
Quality assurance
Measurement of X-ray exposure time
Half Value Layer determination
Troubleshooting and repair of X-rays
Typical Tablet Display
Graph Function, 300 ms, half-wave x-ray
Carrying Case
All UXI units come with a custom Carrying Case, that keeps your instrument and tablet safe and has
room for cables and accessories.
Specifications for UXI / UXI-L kVp
RANGE
• UXI: 45 to 125 kV
• UXI-L: 40 to 120 kV
KVP ACCURACY
• 2% +/-1 kV, at 25 to 100 mA for UXI
• 2% +/-1 kV, at 10 to 50 mA for UXI-L
• 18 to 42 cm from head, for Tungsten target x-ray
tube with 1.5 mm Al equivalent filtration
EXPOSURE TIME ACCURACY
• 1% 2 millisecond (1/5 to 2 sec)
• Minimum exposure time is 16 milliseconds
MINIMUM EXPOSURE TIME
• kVp Measurement
• 16 millisec - Short Delay
• 40 millisec - Long Delay
• Exposure Time Measurement Only
• 2 millisec
MINIMUM CURRENT (mA)
• 7 mA at 50 kV, 10 cm from x-ray source UXI
• 5 mA at 50 kV, UXI-L
• Also depends on focus / collimating
HVL
mA / mAs Specifications for
820
RANGE
General Specifications
DISPLAY
• 7 inch (177.8 mm) Tablet
CONTROLS / INDICATORS
• 200 mA Full Scale
• 0.1 mA Resolution (mA or mAs)
• 7 inch Nexus II Tablet Display
• 10 Ohms Input Impedance
• 14 foot (4 meter) USB Cable
• 2A Full Scale
• Remote Operation via USB
• 1 mA Resolution (mA or mAs)
• 1 Ohm Input Impedance
POWER
• Meter automatically selects range
ACCURACY
• 2% 1 mA on both ranges
CONNECTION
• Via 5 meter cable with two alligator
clips
• Tablet battery powers UXI X-ray Detector
• via USB Cable
BATTERY LIFE
• Battery life with tablet is 3 hours of
continuous use
• Unit comes with AC Charger
PHYSICAL SIZE / WEIGHT
• UXI X-ray Detector
• 150 x 120 x 58.5 mm (5.9 x 4.7 x 2.3")
• 500g (0.5 lb)
Manufactured by ECC, distributed by:
X-2 Engineering
Galen J Hiveley
x2engineering@msn.com (Email)
www.xraypartsdepot.com (Website)
X-2 Engineering
2931 West 34th St Unit D
Davenport, Iowa 52806
563-320-3458 phone
563-386-1094 fax