138A Gauss Meter is exclusively used to test the flux density of all kinds of magnetic components. Regardless of what its material or the shape of the magnet is, Model-138A can test its flux density.
For example Ferrite Magnets、Flexible Rubber Magnets 、Rare Earth Magnets、Alnico Magnets…can all be tested by Model-138A. Also, Magnets for loudspeakers 、 headphones 、microphone magnets 、 motors, and relays, as well as other magnetism components can all use Model-138A to test its flux denstity.138A is specially designed with “Peak Hold” & “Auto Accumulating and Auto-Averaging” two functions, especially suitable to test the flux density of the magnetic gap of loudspeaker 、headphone and microphone…etc.
Technical specification:
1、Digital Display: 3 1/2 digits, Resolution: 1 gauss.
2、Measuring Range: 0∼20.0K gauss, auto-ranging. Two ranges: 0∼2.0K, 2.0K∼20.0K gauss.
3、Accuracy (probe excluded):
Normal : ±(0.1% Rdg.+ 0.05% FS)
Peak hold : ±(0.2% Rdg.+ 0.1% FS)
(1/4) x 4 : ±(0.3% Rdg.+ 0.1% FS)
4、Peak hold decay < -0.05% /sec.
5、Accuracy ( probe included ) :
At 10K gauss: ±1.7%
0∼15K gauss : ±(2% Rdg.+ 0.1% FS)
15∼20K gauss: ±2.5%
6、Dim. : 14 (L) x 22.5 (H) x 23 (D) cm.
7、Net Weight: 2.8 KGS.