Fluxmeter FLUX-CHECK 250
Incomparable compact fluxmeter as a hand-held measuring device for determining the magnetic flux
The compact List-Magnetik FLUX-CHECK 250 fluxmeter is a new handheld instrument of this size for determining the magnetic flux Φ (Phi) of a magnet system or a single magnet.
When testing a permanent magnet or a magnetic system, it is important to know the quality of the magnet and the strength of the magnet's magnetization. Measuring the magnetic field strength with a magnetic field meter is only possible at specific points and does not take into account the volume of the magnet. This task is performed by a fluxmeter with a Helmholtz coil.
The Helmholtz torque coil is optionally available with the fluxmeter
In combination with the List-Magnetik Helmholtz Torque Coil HM-2, the magnetic flux of permanent magnets can be determined very precisely, since the entire volume of the magnet is measured, regardless of its position. The effect of the magnet on the coil is measured as an electrical voltage and converted to a flux value. In addition to the Helmholtz HM-2 torque coil, all types of coils or coil probes can be connected to the instrument.
Graphical integral of the pulse curve
The recording of the recorded pulse curve of the flow measurement results in an area which, as an integral, gives the flow value. This area is displayed graphically on the LCD touch panel with a resolution of 320x480 pixels and the correct flux value is calculated from it. Technically, the FLUX-CHECK 250 is an electronic analog voltage integrator.
No drift
The drift that many fluxmeter show after switching on, which leads to a longer waiting time until the first measurement or which has to be compensated again and again in the course of a measurement series, does not occur with the FLUX-CHECK 250. A trigger value is entered from which the measurement starts and the previous drift value is automatically taken as the zero value. The instrument is ready for measurement immediately after switching on.
Real flux, Magnetic moment, Flux density
In addition to the magnetic flux Φ, other information about the coil and the measured magnet can be stored in the instrument and used to calculate additional information:
- The number of turns of the coil (n) - this is used to calculate the "real flux".
- The coil constant of the Helmholtz coil - this is used to calculate the "magnetic moment".
- The volume of the magnet - this is used to calculate the flux density B
Data logger and interface
It offers flexible data storage, a combined digital and analog display, and peak-to-peak measurement. The Bluetooth interface allows data to be transferred to a Windows PC and to apps for Android and iOS. The USB-C interface allows permanent connection to an external power source.
An SCPI interface is implemented on the device, which allows the device to perform remote measurements in line operation and provide measured values. The connection is made via USB, which also ensures power supply and continuous operation.
Manage and send measurement data with a free application
To further process your measurement data, you can pair your measuring device with mobile Android and iOS devices. Or you communicate with a Windows PC. This is made possible by Bluetooth Low Energy technology (BLE). With the Lima Connect app you can manage projects and assign the measuring points on a photo. The measurement results can be statistically evaluated and displayed graphically. The app for Android, iOS and Windows is free.
Technical data Fluxmeter FLUX-CHECK 250 |
|
| Measuring units: | magnetic flux mVs (milli-Volt-second, corresponds to the SI unit mWb / milli-Weber)
Measuring ranges: 0-10 mVs and 0-250 mVs, automatic or manual range switching Real flux: mVs / n Magnetic moment: mVs * cm Flux density: A/cm or mT |
| Accuracy: | 2% |
| Repeatability: | 1% |
| Resolution: | 0.001 mVs |
| Input resistance: | 33 kOhm |
| Ambient temperature range: | 0 - 50° C |
| Display: | LCD touch panel color 320x480 pixel |
| Multilingual menu navigation: | German, English, Italian, French, Spanish |
| Data logger: | 10,000 measurements, flexibly divisible |
| Statistics: | Count / Maximum / Minimum / Average / Standard deviation |
| Interface: | Bluetooth Low Energy interface for communication with Android, iOS and Windows |
| App for Android, iOS, Windows: | free of charge via Google Play Store, Apple App Store, List-Magnetik website |
| External control: | via USB-C and SCPI communication interface |
| Power supply: | 3x 1.5 V AA Mignon. External power supply can be connected via USB-C |
| Operating time: | approx. 25 hours with battery, unlimited with external power supply |
| Dimensions: | 150 x 85 x 35 mm |
| Weight: | 320 g with batteries |
 |
|
Helmholtz Moment Coil HM-1
The Helmholtz Torque Coil HM-1 is a coil made of a plastic cylinder with an inner diameter of 90 mm, with which you can measure the magnetic flux of a magnet on the FLUX-CHECK 250 Fluxmeter. The position of the magnet can be seen from all sides through the observation hole.
A Helmholtz coil is a special coil structure that produces a homogeneous magnetic field. The radius and distance between the two coils must be the same. The fields of the two coils are superimposed so that an almost homogeneous field is produced in the central area of the coil along an imaginary axis between the centers of the circles.
Technical Data Helmholtz Torque Coil HM-1 |
|
| Inner diameter: | 90 mm |
| Outer diameter: | 110 mm |
| Homogeneous measuring range: | 35 mm |
| Number of windings: | 2x 600 |
| Coil constant: | 0.0096 cm |
| Connector: | 2 banana sockets |
Helmholtz Moment Coil HM-2
The Helmholtz Torque Coil HM-2 is a double coil made of aluminum with an inner diameter of 49 mm, with which you can measure the magnetic flux of a magnet on the FLUX-CHECK 250 Fluxmeter.
Technical Data Helmholtz Torque Coil HM-2 |
|
| Inner diameter: | 49 mm |
| Outer diameter: | 80 mm |
| Homogeneous measuring range: | 29 mm |
| Number of windings: | 2x 400 |
| Coil constant: | 0.01374 cm |
| Connector: | 2 banana sockets |
|
|
