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VIA Bravo MRI™ & MRI II™ Network Analyzers

For Testing MRI Coils 0.1 - 3.0T

The VIA Bravo MRI & MRI II are Network Analyzers that accurately measure impedances from 2 to 2000 Ohms, resistance, phase angle, X, Q, return loss, and SWR. Both Bravos can simultaneously provide graphical display for any two measurement parameters. The frequency sweep is plotted in the X axis and independent left and right Y axis scales are user selectable. The Bravo’s portability and ability to function in close proximity to magnetic fields make it the ideal test instrument for installing and servicing MRI systems. Additionally, our Bravo products come with Bravo PC Vision™ software. This software permits remote control operation of the Bravo MRI or MRI II to upload test results to a PC or laptop, view the VIA or Smith Charts in full color, tore and print complete analyzer documentation. While the Bravo’s LCD can support displaying two parameters, PC Vision can display one or all the testing parameters at once. The Bravo MRI or MRI II will save time, reduce capital expenditures, and reduce costs typically associated with the installation and servicing of MRI Systems.

Models
VIA Bravo MRI........... 6015-5000
VIA Bravo MRI II........ 6015-5250

All Models Include:
PC Vision software VIA Bravo
Serial Cable, 25ft (7.6m)
AC Adapter, 90-240VAC 50-60Hz
Padded Belt Case
Calibration Terminators

PC Vision Smith Chart

PC Vision VIA Chart

SPECIFICATIONS

•Frequency/Tesla  Range:

Bravo MRI - 100KHz to 70MHz (0.1 to 1.5T) Brave MRI II - 100KHz to 70MHz (0.1 to 3.0T)

• Tuning Resolution:

< 0.02% of Center Frequency

• Measurement Speed:

~ 1 Sweeps/Second

• Freq. Display Width:

0 -12.8MHz/80 data pts/Large Readout Mode
0 – 16MHz/100 data pts/Small Readout Mode

• Impedance Range:

0 to 2000 Ohms

• Impedance Scales:

0 to 100 Ohms Minimum
0 to 2000 Ohms Maximum

• Phase Angle Scales:

± 15 to ± 180 Degrees

• Harmonic & Spurious:

>30 dB below fundamental

• Output Power:

~ -15 dBm @ 50 Ohms

• Power  Requirements:

13.8 to 18 VDC @ 400mA Min.

• Input Connectors:

BNC for Bravo MRI
N Type for all other models

• Display:

64 x 128 pixels backlit LCD

• Non Volatile Memory:

Slots 1–16 Instrument presets
Slots 17–24 presets & data

• Dimensions:

8.5x4.3x2.25”  (215x110x57mm)

• Weight:

20 oz (640g) without batteries

Benefits

• Provides rapid coil performance analysis

• Improves MRI reliability

• Improves MRI image quality

• Reduces service wait time

• Reduces MRI out of service time

• Operates in magnetic environment

• Can be operated in remote control from a PC or laptop

• Document coil performance and tuning

• Maintain servicing records for coils

• Bravo MRI II model has N type dual-ports (S11 & S21) for coil-to-coil loss/separation measurements

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VIA Bravo ™ Analyzers

The VIA Bravo is a handheld Vector Impedance Analyzer for measuring the impedance and resonant frequencies of circuits and antennas. The VIA Bravo has the capability of providing accurate measurements and sweep displays of impedance, reactance, resistance, phase angle, return loss and SWR. The VIA Bravo’s testing functionality, combined with its 100 kHz to 200 MHz frequency range, make it a versatile tool for many service applications including areas such as MRI, wireless telemetry, 2-way radio, aviation, and Radio Frequency Identification (RFID). The VIA Bravo Analyzer comes in three versions with the capability of simultaneously displaying two separate measurement graphs and the respective scales. The versions include the standard S11 port Bravo model, the S11 and S21 ports Bravo II model, and the Bravo II XF (eXtra Fine frequency resolution) model. The Bravo PC Vision Software application, included with the VIA Bravo, provides the user with the capability of remotely operating the VIA Bravo through a serial port connection while viewing real time results on a PC. A Smith Chart display of the measured circuit impedances is also available. The PC Vision Software makes the capture, storage, and printing of documentation and reports easy. The VIA Bravo has proven to save time, improve on reliability and quality, and reduce service wait time.

Models
VIA Bravo Analyzer............... 6014-5000
VIA Bravo II Analyzer ........... 6014-5250
VIA Bravo II XF Analyzer...... 6014-5300

All Models Include:
PC Vision software.................. 6014-1220
Serial Cable.............................. 0070-1201
AC adaptor, 90-240 VAC......... 5001-0202
Belt carrying case.................... 5001-1002
Calibration load set................. 6015-1301

PC Vision Smith Chart

Bravo PC Vision Screen Shot

SPECIFICATIONS

•Frequency  Range:

100 KHz to 200 MHz

• Tuning Resolution:

< 0.02% of center frequency - Bravo and Bravo II
< 0.0025% of center frequency - Bravo XF models

• Measurement Speed:

~ 2 Sweeps/Second

• Freq. Display Width:

0 to 51.6 MHz/80 data points/large numeric readouts

0 to 64 MHz/100 data points/large numeric
readouts

• Impedance Range:

0 to 2000 Ohms

• Impedance Scales:

0 to 100 Ohms Minimum
0 to 2000 Ohms Maximum

• Phase Angle Scales:

± 15 to ± 180 Degrees

• Harmonic & Spurious:

>30 dB below fundamental

• Output Power:

~ +5dBm @ 50 Ohms

• Power  Requirements:

14-20 VDC @ 400 mA. minimum or 8 AA (Alk or NiMH)

• Antenna Connector:

“N” connector

• Serial interface speeds:

4800 to 57.6K bps

• Size:

8.5” x 4.3” x 2.25”

• Weight:

20 oz (500g)

FEATURES

• Large numeric display of Center Frequency graph values and Inductance or Capacitance values
• Simultaneously view two separate plots with differing scales
• Measure Parallel or Series Resistance and Reactance
• Automatic Calibration and Self-test
• Cable/Fixture Nulling
• Nonvolatile memories for both Plot Storage and Setup data
• Signal Generator Mode - CW signal generator
• Windows™ Bravo PC Vision software included
-  Real-time display of plots on PC
-  Smith Chart display
-  EASY transfer of memories in unit to software

• EL Backlit Supertwist LCD Display for sharp contrast
• Auditory cues for non-visual tuning
• Lightweight and portable

Benefits

• Saves time

• Improves  reliability

• Reduces service wait time

• Improves quality

Ready to get started?

Contact sales