one, Instrument characteristic and applicable scope:

1, This instrument to test the speaker leakage flux or the electric meter magnet steel specially tests the magnetic flux to design, has the very high sensitivity, suits in the assembly line, the mass product??s online test, it surveys value reflection on meter, special attention, this is a relative value, is may establish its size through the adjusting knob, but once will measure that the standard sample or the qualified sample??s observed value accent decides, and calibrates, this time speaking of the identical product, this instrument namely becomes a comparison measuring instrument, the judgment product with is qualified unqualified, and has the exceeding the allowed figure sound caution. The examination product quota, is fast, is accurate.

 2, When many instruments, many simultaneously work, so long as with identical standard sample or time same performance different standard sample calibration, the calibration value and the coil parameter may not be dissimilar, but for the formulation test examination craft??s uniformity, may use the identical value to take many kinds of products the survey standards, like decides as 30, 60, 100 and so on, the different instrument or the coil individual difference, to judges the product qualified or not to relate, but only concerns with the standard sample determination. Therefore chooses the standard sample is the examination key, the calibration value is the checked operation prime task, this is also this instrument is suitable the surface, the flexible merit to be at broadly.

3, No matter this instrument the product size, may test, so long as adjusts suits this product the coil then.

two, Instrument??s technical parameter

1. Working voltage: ~220V (50HZ)

2. Operating current: 150mA

3. Working conditions temperature: - 5oC~45oC

4. Data demonstration precision: ±1%