Application of fully automatic powder resistivity detector

Powder resistivity detector (two probe method)

ZKFTDZ-I

Reference standard

GBT 24521-2018 Carbon raw materials and coke - Determination of electrical resistivity

Product Usage

Powder resistivity detector (two probe method)This instrument is used for measuring the resistivity of carbon raw materials and coke powder

Mainly applicable for the determination of resistivity of raw materials and coke powder used in carbon production, such as calcined anthracite, graphite, carbon black, roasted crushed coal, calcined petroleum coke, graphitized coke, needle coke, etc

1、 Product Overview:

This instrument was developed according to standard requirements. The main working principle is to use a dry sample with a certain particle size, weigh it, pour it into a powder cylinder, apply a pressure of 3.9MPA to the powder, and after the pressure stabilizes, load current on the powder and measure the voltage at both ends of the electrode to calculate the powder resistance and obtain the resistivity.

This instrument is operated through a 10 inch touch screen, controlled by Siemens PLC, intelligently loads and maintains constant pressure, with adjustable pressure and speed, truly realizing the intelligence and automation of testing. No manual intervention is required, and the testing process is automatically completed. After the test is completed, it automatically returns to the initial position and can print the test data.

This instrument has high measurement accuracy, small repeatability error, automated testing process, reasonable setting pages, simple operation, and operators can operate without professional skill training, truly achieving one click automated testing.

This instrument has the characteristics of high measurement accuracy, good stability, compact structure, and easy use, and meets the requirements of international and national standards.

The structure of this instrument consists of the following parts:

1. Force loading system: Powered by servo motors for precise pressure control, noise free, continuous loading

2. Resistance measurement system: With a wide range of resistance measurements, it meets the needs of various testing ranges

3. System control collection: Control operations are performed on a 10 inch touch screen, with real-time display of test data on the page and the ability to print test data

4. Specialized measuring electrode: diameter 16.0mm/30.0mm

2、 Advantages and Characteristics:

1. 10 inch touch screen display, supports remote upgrade

2. Simultaneously supporting two types of electrodes with a diameter of 16.0mm/30.0mm

3. Real time display of pressure, compression thickness, density, voltage, resistance, current, resistivity, and conductivity during the testing process

4. Multiple units for resistivity display and conductivity selection

5. Print the test results of single point testing

6. Multiple testing modes: constant pressure, constant pressure, gradient pressure, gradient pressure, compression ratio

7. Gradient multi-point test results can automatically calculate the resistance difference between each gradient and automatically calculate the percentage

8. The results of gradient mode testing can be viewed online and data can be exported

9. The testing process is fully automated, and it automatically resets after the experiment is completed

Measurement mode:

Mode Selection Instructions Remarks

Constant pressure testing is conducted at a set constant pressure, and the testing time can be set to a standard testing mode

Constant pressure test is conducted at a set constant pressure, and the test time can be set

Gradient pressure testing is conducted according to the set step pressure, and the gradient holding time can be set to extend the testing mode

Gradient pressure testing is conducted according to the set step pressure, and the gradient holding time can be set

The compression thickness test is conducted based on the displacement of the compression ratio, and the testing time can be set

3、 Technical indicators:

Serial number Technical indicators Technical parameters Remarks

Test range 0-5KN (3.9MPA/3.0MPA)

2 force accuracy FS * 0.5%

3 loading methods: servo motor - electric loading

4 measurement modes: constant pressure/constant pressure/gradient pressure/gradient pressure/compression thickness

5 Display data force value/pressure/density/thickness/voltage/current/resistance/resistivity/conductivity

6 data printing with micro printer, capable of printing data

7 data export can export electronic versions of data

8 Control Modes 10 inch Touch Screen Display

9 load setting pressure/pressure can be set

10 Test Speed Test speed can be set

11. Holding time can be set

12 zero point calibration automatically performs zero point calibration

After completing the automatic reset test, it will automatically return to its initial position

14 height accuracy ± 1 μ m

15 manual rise and fall can be manually raised and lowered, and the speed can be set

16 measuring electrode with a diameter of 16.0mm (suitable for particle size range of 0.315mm-0.5mm) optional

17 Two probe electrodes with a diameter of 30.0mm (suitable for particle size range of 0.5mm-1.0mm) optional

18 equipment power supply 220V/50HZ

19 devices with a power of 1kW

20 device dimensions: length, width, and height=550 * 450 * 960 (mm)

21 devices weigh approximately 75kG

22 Placement Method Desktop - Desktop Placement

Resistance Measurement System - Technical Parameters

Serial number Technical indicators Technical parameters Remarks

1 constant current source 10 μ A, 100 μ A, 1mA, 10mA, 100mA, 0.5A, 1A, 10A

2 constant current sources with an accuracy of ± 0.5%

3 voltage ranges: 2 mV, 20 mV, 200 mV, 2V

Voltage accuracy ± 0.1%

5 Measurement range 10-6-105 Ω

6 resolution 10-8 Ω

Measurement accuracy ± 0.5%

8 display modes, 7-inch touch screen

9data printingmini printer