ST2742B 3min-V1.0_20251010_14171811

ST2742B 3min-V1.0_20251010_14171811

2 month ago

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SUZHOU JINGGE ELECTRONICS CO., LTD.

 4 month year

Product details

1. Basic Functions

The ST2742B automated powder resistivity tester is a measuring instrument that uses the four-probe method and four-terminal method to test the "resistivity - pressure", "conductivity - pressure" and characteristics of powder, and simultaneously tests the "compaction density - pressure" characteristic curve.

2. Adopt the main national standards

Four-terminal method: GB/T 24521-2018 "Method for Determination of Resistivity of Carbon Raw Materials and Coke" and YS/T 587.6-2006 "Test Method for calcined Petroleum coke for Carbon Anodes - Part 6: Determination of Resistivity of powder"

Four-probe method: GB/T 1551-2021 "Determination of Resistivity of Silicon Single Crystal - Direct Row Four-Probe Method and Direct Current Two-Probe Method", GB/T 30835-2014 "Carbon Composite Lithium Iron Phosphate Cathode Materials for Lithium-ion Batteries", "GB/T 30835-2014 Carbon Composite Lithium Iron Phosphate Cathode Materials for Lithium-ion Batteries"

Both are compatible: GBT 40007-2021 "Nanomaterials - Contact Measurement Method for Resistivity of Nanomaterials - General Rules"

3. Complete set of instrument components:

The main components of the entire set of instruments include: the measurement and control host, the automatic pressure control console, the automatic height sensor, the feeder, the four-probe electrode, and the corresponding PC measurement and control software modules, etc.

4. Applicable scenarios

This instrument features high measurement accuracy, rich measurement and control functions, simple operation, good stability, excellent repeatability, and multi-functionality in one machine.

This instrument is suitable for lithium battery positive and negative electrode material factories, graphite and carbon factories, coking plants, powder metallurgy plants, colleges and universities, research institutes, metrology units, industrial and mining enterprises, etc. It is an important and excellent tool for testing and analyzing the resistivity parameters of powder samples.

Technical parameters

3.1 Characteristic parameters of measurable samples

a. Measurable resistivity range: 15.00×10-6 to 200.00×10 ³ Ω-cm

Resolution: 1.50×10-6 to 0.01×10 ³ Ω-cm

b. Measurable sample particle size requirements: It is recommended to be below 40 mesh, with a maximum not exceeding 10 mesh. Excessive fineness has no effect!

c. Measurable sample components: There are no special requirements. As long as there is no corrosive damage to the metal electrode and the plastic material cup, it is acceptable.

d. Selection of material cups and recommended sample quantities: As shown in Table 3.1-1/2/3 for selection of material cups and recommended sample quantities.

Table

3.1 Recommended Table for Cup Selection, Sample Usage and Pressure Range

Serial number:	Cup model/Cross-sectional area cm ²:	ST2742B-FS10/1.0,	ST2742B-FS20/2.0,	ST2742B-FS30/3.0
1	Selection reference	Generally	the general-purpose type has a large compression ratio	and the fluffy type has a larger particle size (coking coal type)
2	Single dosage (ml)	1~2	2~4	3~6
3	Recommended retest times	2~3	2~3	2~3
4	Measurable pressure range (MPa)	0~30	0~15	0~10

3.2 Test condition parameters can be provided

a. Eight-speed constant current source: 0.1uA, 1.0uA, 10uA, 100uA, 1.0mA, 10mA, 100mA, 1.0A.

Voltmeter: 20mV to 2.0V automatic range.

b. Selection of material cups and recommendation of pressure conditions

The system provides a rated pressure of ST2742B: 3000N(300KG), with an selectable pressure range of 0 to 30MPa.

3.3 Data representation form and precision grade parameters of single-machine mode

a. Real-time synchronous display: resistivity ρ, conductivity σ, scientific counting method of "5 significant figures + order of magnitude units".

b. Real-time synchronous display: pressure P, height H, compaction density, four significant figures.

c. Real-time synchronous display: Test current magnitude and direction.

d. Result Output: Instrument color screen form of "Resistivity ρ- Pressure Pa- Compaction Density".

3.4 Online mode data representation form and accuracy grade parameters

a.The software measurement and control interface and the instrument's color screen display relevant content in real time synchronously.

b. Synchronously record and output the result of the "resistivity ρ- pressure Pa" form.

c. After the test is completed, a test report can be printed, which includes the forms and curves of "resistivity ρ- pressure Pa", "conductivity - pressure", and "compaction density - pressure".

3.5 Instrument external dimensions and weight parameters

ST2742B

a. Dimensions: Length × Width × height =33cm×30cm×47cm

b. Weight: 15Kg

3.6 Instrument Power Supply Configuration parameters

a. Power Supply: Voltage U=220V±10V, frequency f=50Hz±5Hz.

b. Power: P<200W, fuse specification 250V2.0A

3.7 Instrument usage environment and storage method

a. Temperature: T=0-40℃, relative humidity: RH≤60%

b. There should be no strong electromagnetic field interference in the studio, and it should not share power with high-frequency equipment.

c. Store in a cool, dry place free from corrosive gases.

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SUZHOU JINGGE ELECTRONICS CO., LTD.

 Audited supplier

4 month

Address: Suzhou, China

Main Product: Four-probe tester, Powder resistivity tester, Ultra-high resistance microcurrent tester , Resistor Tester, Quality resistivity tester, PN Type Identifier

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