|Measuring Range:||0-2000MT||Accuracy:||±2% ±3（<=1000MT）±5%±3（>=1000MT）|
|Display Screen:||3 1/2 LCD N/S Display||Standard Probe:||Transverse Fiber Probe|
|Optional Probe:||Lognitudinal Probe||Power:||AA Battery 4 Pcs,and Or 9V Power Adaptor|
mpi testing machine,
magnetic particle test equipment,
magnetic particle inspection equipment
Digital Tesla Meter Gauss Meter Field Strength Meter for Magnetic Particle Inspection HGS-10A
Principle of Hall Effect
When placing the semiconductor carrying current in the magnetic field axial to the current direction, the semiconductor will generate transverse galvanomagnetic phenomenon, namely generate electromotive force in the direction axial to the magnetic field and current, which is Hall Effect. Hall Effect can be explained with classical galvanomagnetic theory. Generally, Hall voltage UH is expressed as:
Of which: d—the thickness of the Hall device
RHI=RH/d—Constant of the Hall device
I—Current intensity passing through the Hall device
B0—The measured magnetic induction intensity
It can be seen from the formula: For a certain Hall device, the magnetic field B0 can be indirectly measured through measuring the Hall device if only the passing current I is constant. Since it can count continuously and linearly with simple method and long service life when measuring the magnetic field with Hall Effect and can measure the magnetic field of small space and small gap, Hall Effect Method has become one important method among magnetic field measurements
HGS-10C is the first hand-held type Gauss meter of HGS series Gauss meters. This instrument is the magnetic field measuring instrument specially designed for field measurement. Its design concept of lightness, practicality and portability has been determined at the beginning of instrument design and its unique design of micro power consumption allows its battery life to be greatly improved.
I Main characteristics
II Main technical index
III Instrument operating instruction
Step 1: Connection: connect the Hall probe with the instrument⑥;
Step 2: Power on: Press the “POWER” switch ②on the panel of handhold Gauss meter and there shall be display ①on the panel meter, it represents the instrument power has been energized and measurement can be done;
Step 3: After the power is energized, firstly select a corresponding range ③according to the magnetic field size of the measured object.
Step 4: Zero point correction: Place the Hall probe in the area whose magnetic field is zero. When the meter reading is not zero, adjust “Zero” ⑤potentiometer till the reading is zero.
Step 5: Magnetic field measurement
A. Place the Hall probe in the surface magnetic field of the measured sample, move the Hall probe and the magnetic field intensity can be directly read from the instrument, whose unit is mT and the magnetic field polarity also can be judged (When using transverse probe and the display value is “-”, the number side of the Hall probe faces N pole and when using axial probe and display value is “-”, the end side of the Hall probe faces N pole);
B. The range button, the range is 2000mT when it is pressed and the range is 200.0mT when it bounces back;
C. Contact the magnetic steel surface with Hall chip side in the practical measurement, the measurement result is closer to the actual value. When measuring with base plate side, the measurement result is little low, 1mT = 10 Gs.
IV Instrument calibration
Place the Hall probe in the standard magnetic field and adjust the “Calibration” ⑦potentiometer with small slotted screwdriver till the instrument reading is consistent with the numerical value of the standard magnetic field. Generally, it will be required to calibrate the instrument only after the Hall probe is replaced.
Main Technical Parameters
Sensitivity: 0.1GS, 1GS
Temperature of environment: 5℃-40℃
Relative humidity: 20%-80%(no condensation)
Power Supply: Battery 9V, constant DC power
Weight: N.W: 500g G.W:900g
Display: 4½ LCD
Shape of the device:
Transverse fiber probe
Transverse metal probe
Contact Person: Mr. Davis Chen