Fluxmeter LM-FL250-HM1

Fluxmeter LM-FL250-HM1
Model FLUX-CHECK 250 with Helmholtz coil HM-1

The compact List-Magnetik FLUX-CHECK 250 is a new, handheld fluxmeter for measuring the magnetic flux (Phi) of magnet systems and individual magnets. This innovative device provides an accurate method for testing ferromagnetic materials and is ideal for material analysis and testing in various applications.

When testing a permanent magnet or magnetic system, the quality and strength of the magnet's magnetization are crucial. Using a magnetic field meter to measure the magnetic field strength is only possible at specific points and does not account for the magnet's volume. A fluxmeter with a Helmholtz coil can perform this task by enabling precise, volumetric measurement of the entire magnetic field.

A Helmholtz torque coil comes with the fluxmeter

When used with the List-Magnetik Helmholtz torque coil HM-1, the magnetic flux of permanent magnets can be measured very precisely because the entire magnet volume is measured, regardless of its position. The magnet's effect on the coil is determined as an electrical voltage and converted into a flux value. In addition to the HM-1 coil, the device can connect to all types of coils or coil probes, enabling a high degree of flexibility in ferromagnetic material testing and analysis.

Graphical integral of the pulse curve

Recording the pulse curve of the flow measurement results in an area that determines the flow value as an integral. This area is displayed on the 320x480 pixel LCD touch panel, and the correct flux value is calculated from it. Technically speaking, the FLUX-CHECK 250 is an electronic analog voltage integrator.

No drift

Unlike many fluxmeters, the FLUX-CHECK 250 does not suffer from drift after being switched on, which leads to a longer wait time for the first measurement or requires repeated compensation during the measurement series. Instead, a trigger value is specified at which point the measurement begins. The previous drift value is automatically taken as the zero value. The device is ready to measure as soon as it is turned on, enabling quick and reliable material testing and analysis without wasting time on constant drift compensation.

Real flux, Magnetic moment, Flux density

In addition to the magnetic flux (Phi), the device can record further information on the coil and the measured magnet. This data can be used to make additional calculations that support material analysis and precise testing of permanent magnets and other magnetic systems.
The number of coil turns (n) — the "real flux" — is calculated from this.
The coil constant of the Helmholtz coil is used to calculate the "magnetic moment."
The volume of the magnet determines the flux density B.

Data logger and interface

The device supports you with flexible memory for measured values, a combined digital and analog display, and the ability to measure peak values. Thanks to the wireless Bluetooth interface, data can be transferred to Windows PCs, as well as to Android and iOS apps. The device can be connected to an external power source via the USB interface.

The device has an SCPI interface that allows it to carry out remote-controlled measurements and deliver measured values in line operation. The USB connection simultaneously ensures the power supply and guarantees continuous operation.

0 - 50° C

0-50 °C, 10-90%

IP64

75 x 50 mm

28 x 23 x 9 cm