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Product Overview:

Tesla meter verification device ( high precision magnetic control platform )

System uses our company’s high precision digital Gauss meter and a high precision bipolar high stable power supply with high homogeneity of the electromagnet to form a closed loop control of high accuracy and stable magnetic field generating platform. by the computer input required field value, system can reach a preset value at a stable and high speed, and the system controls its stability, real-time displays of the preset value and in graph and numerical value of magnetic field fluctuations. Magnetic field generating platform precision:± 0.05% of readings± 0.005% range; magnetic field: 0.03mT-2.8T; magnetic field stability: ± 0.03mT. It is applicable to all types of magnetic properties research. Xiamen Dexing Magnet Tech. limited company according to the magnetic field calibration standard of China Metrology Institute (" JJG242-1995" Tesla meter verification regulation ) producesTesla meter calibration system and high stability high precision magnetic field generating platform, which is applicable to the test for metering departments and magnetic research for various types of institutions.

Hardware
1 high precision Gauss meter
2 high precision DC power supply
3 electromagnet with high uniformity
4 water cooler
Software
1 China Metrology Institute provides correction data and certificate ( optional)
2 Fully automated DC magnetic field control system ( optional)

 

Detailed description of system composition

1. DX-180 High Precision Gauss Meter / Tesla Meter

DX-180 high-precision gaussmeter/teslameter is designed for measuring high-test precision, high-resolution magnetic field.It integrates a variety of the latest high-tech digital technology, which ensure the accuracy, stability and repeatability of magnetic field measurement. It also provides a wide-range measurement from DC to 2.5kHz AC magnetic field. It is designed and manufactured in accordance with ISO-9001 standard. With the functions of bright VGA color graphics, excellent self-drawing, full menu operation, 5 ¾-bit readings, high-resolution 1 / 600000, it makes you convenient to observe 0.0001mT weak changes in the high magnetic field measurements. It is able to measure maximum at 100KG (10T).It has a large-capacity data storage  and you can review the historical-data according to storage time. Sepcially designed professional graphics software can draw the chart, according to the magnetic field strength. With this Gauss-meter you can achive goals of measuring, storage, communication, drawing automatically just in one machine.Products are mainly sold to large institutes, universities and research departments of large factories.

Features

5 ¾-bit resolution on VGA color panel	Basic DC accuracy: ±0.05% of reading
Self-Drawing and displaying function	Basic resolution: 0.00001 mT
Maximum/minimum/peak/valley value keeping and interface locking	Threshold setting and alarming
Data-storage(auto/manual)/historical-data reviewing	Auto-zero, automatic/manual range
Probe Auto Calibration / Auto Memory operation mode / Probe temperature compensation	RS-232C interface / data output
Display units: Gauss, Tesla, A / M or Oe	Zero setting / relative measurement mode
Communication baudrate adjustment / working temperature display	Matching Zero Gauss Chamber/Gauss Meter Professional mapping software
Time and brightness setting	dozens of optional basic probes (matched 0.8mm ultra-thin probe)

Specifications

Model-180 Specifications
	0.1mT=1Gs
Range	*(0.1mG-30Gs)/(1mGs-300Gs)/(0.01Gs-3000Gs)/(0.1Gs-30KG)/*(1Gs-100kGs)
Resolution	0.1mGs(0.01uT)
Accuracy (display value)	DC	± 0.05% of reading  ± 0.005%range
	AC	±1% of reading
Frequency Range	DC mode	DC
	AC mode	20Hz to 30kHz
Analog Output	Output Voltage	±3V F.S.
	Connectors	Standard BNC
Additional effects	Temperature Coefficient	±(0.02% ±1 count)/ ºC
Temperature range	Working temperature	0ºC to 50ºC
	Storage temperature	-20ºC to 60ºC
Panel Display	320 x 240 Pixel,3.5 inch full view color screen
Communication Interface	RS-232    Standard 9-pin D-type connectors
Supply power	Voltage: 200/240v    Frequency: 50-60 Hz

Marked * range needs replace probe (self-recognition)

 

2. High Precision Digital Power Supply

Dexing company provides the electromagnet power which uses high performance digital controlled high precision bipolar constant current power supply, is widely used in inductive load excitation,such as electromagnet, Helmholtz coil. Continuous current zero crossing, contactless commutation, can produce a smooth, controlled and stable magnetic field. It can form a high precision magnetic field platform through the Gauss meter, continuously scan the magnetic field. Current mode control can provide users with simple, convenient use and control form.
1) through the keyboard settings.
2) through the analog voltage control.
3) through the UART interface controlled by computer.
4) through the USB interface controlled by computer. ( optional)
5) adopt preemptive design, without the specified control mode through panel.
6) bipolar output, contactless commutation, continuous current zero
7) the output current, voltage works in four quadrants ( especially suitable for inductive load )
8) the changing rate of the output current can reach 200A / s, power supply automatically limit rate according to the current and power for the reactive load.
9) support connecting Gauss meter through port.
10) magnetic field automaticly control mode. Directly input target magnetic field strength values in the power supply panel key, power automatically adjust the output current according to the  reading of magnetic field values displayed by built-in Gauss meter, in order to make the actual magnetic field equal to the setting target value.
11) using low power standby mode, support upper computer remote opening and closing power, without panel operation.
12)various protection mode. Considering the factors of electric state, cooling condition, module working condition, it provides comprehensive protection for the power, and directly displays fault state in the LCD display, which is convenient for the user to check the cause.
Input power supply under-voltage, over-voltage protection, input power open-phase protection ,input power down protection ( protecting internal absorption perceptual load reverse filling energy )

Specifications and Technical Index

3. Electromagnet

WB type double yoke double tuned adjustable air gap series of electromagnets are designed to keep the best rigid, magnetic circuit symmetry. The electromagnet can be placed vertical, horizontal or fixing angle, the magnetic field is parallel to the ground. The air gap adjusting range of the electromagnet is wide, to replacethe polar head is convenient. It is applicable to a variety of magnetic measurement. Such as: magnetic material measurement, vibrating sample magnetometer, magnetic susceptibility measurement, Holzer effect, torque magnetometer, magneto optical effect test, magnetostrictive test and magnetic resonance test.
Parameters

Model	Pole-Head diameter (mm)	Adjustable air gap (mm)	Polar face diameter (mm)	Maximum magnetic field (T)	Power (KW)
DX-130	Φ130	0-100	Φ100 Φ60	2.3 (10mm air gap) 1.7 (30mm air gap)	3.0KW

Note: Special uniform area 15mm
Uniformity: better than 0.10%

4. Water Cooler

Concret Parameters
1 FL-01 series air-cooled water cooler
2 Standard Cooling Capacity: 2382kcal / h; 2.77KW;  Input Power: 1.34KW;  Power: ~ 220V / 50HZ;
3 compressor is hermetic and rotary, power: 0.75KW;
4 Refrigerant: R22; control mode: capillary;
5 Condenser Type : high-performance copper tube covered aluminum fin + low noise external rotor fan; the cooling air flow: 1000m3/h;
6 Evaporator Type: water tank coil pipe; frozen water: 0.476m3 / h; water tank capacity: 20L;
7 Pump Power: 0.37KW, delivery lift: 20m; Inlet and outlet water pipe diameter: DN15;
8 Safety Protection System: compressor overheat protection, over current protection, high and low pressure protection, over-temperature protection, flow protection, phase sequence/phase lack protection, exhaust overheating protection, freeze protection;
9 Electrostatic spray shell, beautiful appearance, appearance plate used rapidly dismounting form, convenient use and maintenance.
10 Overall Dimensions ( length and width and height ): 500 * 500 * 725mm; (actual size to prevail); mechanical weight: 75kg;
11 Refrigeration Output Basis: temperature of returned chilled water 20℃; temperature of output chilled water 15℃; condensing temperature: 35℃;
12 Scope of Work: temperature of chilled water outlet:5℃-35℃; temperature difference between in and out of chilled water:2.5-6.5;