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Testforce CanadaModel 480 Fluxmeter
Model 480 features
- 5¾ digit DC resolution (1 part out of ±300,000)
- Automatic drift compensation
- Very fast peak capture
- AC frequency response to 50 kHz
- IEEE-488 and serial interfaces
- Storage of parameters for up to 10 existing coils
An advanced tool designed primarily for use in industrial and measurement systems settings, the Model 480 fluxmeter measures total flux from which B, flux density, and/or H, magnetic field strength, can be determined. The Model 480 is valuable for magnetizing, manual and automated magnet testing and sorting, and as the main component in BH loop or hysteresis measurement system applications. The Model 480 fluxmeter is compatible with most sensing coils and fixtures.
Manual magnet testing
A bright display and fast update rate make the Model 480 ideal for manual magnet sorting and testing. The instrument’s low drift improves productivity with fewer adjustments. Remote terminals allow for foot pedal reading reset to keep hands on the work, not the instrument. Configurable alarms give an audible signal or relay closure to signify pass/fail.
Automated magnet testing
In automated testing, time is money. The Model 480 has many features to enhance throughput. The instrument has a fast update rate and fast settling time. It recovers quickly from reading reset to start a new reading cycle. The IEEE-488 and serial computer interfaces included with the 480 can be used to control most instrument functions. Relays and analog outputs can be used for automation without a computer interface.
Magnetizing
The magnetizing process places unique demands on all associated electronics. The Model 480 responds with a very fast peak capture that can keep up with the fastest magnetizing pulses. Both a positive and negative peak can be captured from the same pulse. The input of the Model 480 is protected against the high voltages present at its input during magnetizing.
AC magnetic fields
Sensing coils are sensitive to AC magnetic fields, but many conventional integrating fluxmeters cannot measure AC fields. The Model 480 has an AC mode that enables it to measure fields over a wide frequency range using simple sensing coils. Applications are limited to field volumes as large or larger than the coil, but for some, it is an inexpensive way to make low drift AC field measurements.
Helmholtz and search coils
Coils and probes wound by the user or from other manufacturers can be easily used with the Model 480. The Model 480 allows the user to save parameters for up to 10 existing coils/probes and quickly switch between them. Lake Shore also offers several sensing coils and probe assemblies for use with the Model 480, which offer several conveniences. They are calibrated at Lake Shore for accuracy and interchangeability. Calibration data is loaded into memory in the probe connector so it does not have to be entered by the user. Special coil assemblies are also available and can be designed to meet customer specifications.
For more information about the instrument, including specifications and currently available coils to use with it, visit the product page on the Lake Shore website.
