DX 400 specific surface area analyzer-Fornitore globale

Building 5, Dewei Science and Technology Park, No.12 Kechuang 13th Street, Beijing Economic and Technological Development Zone

Product Features

Accurate calculation of desorption peak

The peak area calculation is based on the desorption process during the adsorption desorption process. After experimental verification, this method has higher accuracy and stability than the adsorption method, and is very suitable for the determination of small specific surface areas of battery positive and negative electrode materials such as ternary materials and graphite; The experimental method can be either single point BET or multi-point BET.

Can be integrated and remotely accessed

The instrument communication interface is a LAN port, which can realize centralized control of one computer as the upper computer, and can remotely access and control the upper computer.

Independent degassing system

Equipped with a completely independent degassing system as standard, with two options of blowing and vacuum, the sample pretreatment is more intelligent, flexible, and convenient. Not occupying the analysis station for pre-processing samples, improving testing efficiency.

Visual display of operating status

The front panel of the instrument is equipped with a status display system, which displays the working principle diagram of the instrument. LED lights are added to each valve position to indicate the on/off status of the solenoid valve, allowing for intuitive judgment of the instrument's operation during the experiment.

Sample card head * * technology

It retains the simplicity and ease of operation when installing sample tubes with quick connectors, while avoiding air leakage caused by damage to the sealing components due to repeated use of quick connectors. The card head can be disassembled and reassembled repeatedly while ensuring sealing, and can withstand higher pressure without leakage compared to quick connectors.

Security protection mechanism

To ensure the safe operation of the instrument, (1) The TCD detector is equipped with a wake sensor to prevent dry burning, ensure the stability of the TCD signal, and extend the service life of the TCD detector. (2) Develop a low-level monitoring program to monitor the operation status of the instrument, automatically control the instrument when there are abnormalities or other dangers, relieve the abnormal conditions that cause danger, and protect the safety of the instrument and operators.

Multiple Dewar flasks to choose from

High performance vacuum glass inner dewar bottle, customized and produced using self-developed technology, with both the insulation effect of glass inner liner and the safety performance of metal inner liner, not fragile; High cost-effective vacuum glass inner Dewar flask with good insulation effect, capable of continuously testing more than 10 samples; Metal lined Dewar flask, capable of obtaining accurate results with extremely high safety factor;

Software Control

The newly developed DX 400 control software is an intelligent software that enables operation control, data collection, calculation analysis, and report preview on the Windows platform.

Real time calculation of test results

The adsorption process of each sample is dynamically displayed on the testing interface, with real-time display of adsorption peaks and real-time calculation of BET specific surface area for each sample.

Real time recording and storage of instrument control process

The Message window can switch display and record real-time instrument experimental control process and software manual operation information, making it convenient for engineers to analyze and remotely diagnose abnormal data.

Typical analysis examples

BET specific surface area repeatability<1%

sample	Number of tests	Measurement value	average value	duplicate value
G9	1	9.164	9.19	0.31%
	2	9.222
	3	9.213
	4	9.158
	5	9.162
	6	9.128

BET specific surface area repeatability<1%

sample	Number of tests	Measurement value	average value	duplicate value
graphite	1	1.8397	1.845	0.24%
	2	1.8462
	3	1.8482
	4	1.8518
	5	1.8467
	6	1.8393

Ultra small specific surface area of 0.1 m2/The repeatability of g reaches 0.01m2/g

sample	Number of tests	Measurement value	average value	duplicate value
cathode material	1	0.1235	0.122	0.0033
	2	0.1189
	3	0.1251
	4	0.1159
	5	0.1242
	6	0.1228

BET specific surface area stability<1%

sample	Number of tests	Measurement value	average value	stability
cathode material	1	9.168	0.186	0.26%
	2	9.213
	3	9.208
	4	9.158
	5	9.162
	6	9.208

BET specific surface area parallelism<1%

sample	Different devices	Measurement value	average value	stability
G9	1	9.156	9.183	0.28%
	2	9.163
	3	9.213
	4	9.158
	5	9.192
	6	9.218

Product parameters

General parameters	DX 400 series
Testing Principles	Low temperature nitrogen adsorption by flow chromatography
test gas	High purity 3:7 nitrogen helium mixture (99.9999%)
detector	Customized thermal conductivity cell accurate to 0.1mV, tested at 0.1m2/The sample of g can be accurate to 0.01 m2/G.
Range of specific surface area	>0.1 m2/g. The repeatability of standard sample testing is less than 1%, parallelism is less than 1%, and long-term stability is less than 1%
Analysis Station	4 of them
Host specifications	700mm in length, 410mm in width, 785mm in height, weighing approximately 30 Kg
Ambient temperature requirements	15-35℃
Environmental humidity requirements	20% -80%, ambient humidity without condensation
Power requirements	100-240VAC, 50/60HZ, * * power 200W
Recommended application areas	Lithium iron phosphate, ternary, graphite, lithium cobalt oxide, lithium manganese oxide and other battery positive and negative electrode materials, as well as other materials with small specific surface area.

test function

model	DX 440	DX 420
test method	Single point BET specific surface area test
test efficiency	4 samples for 7 minutes	4 samples for 15 minutes
Range of nitrogen partial pressure	0.3 or 0.2