It is applicable to determine the content of carbon, hydrogen and nitrogen in solid materials such as coal and coke. 

Features

◎ 39 samples can be set out at one time, and 78 samples can be purchased at one time. The instrument can automatically send samples, set samples, and conduct cyclic testing. The whole process does not require manual operation after setting out, and samples can be added, subtracted, and replaced at any time during the analysis process;

◎ The horizontal structure is adopted, and the instrument can be placed on the laboratory table, which is convenient for customers to operate;

◎ The advanced PID algorithm is used to control the temperature, the furnace temperature control accuracy can reach ± 1 ℃, and the temperature control accuracy of the thermostatic chamber and the air tank can reach ± 0.1 ℃;

◎ The absolute pressure sensor is used to monitor the pressure of the whole gas path of the instrument, which can automatically detect the air tightness of the whole gas path and the furnace, infrared pool, thermal conductivity pool, and gas storage tank;

◎ The instrument adopts infrared spectrum absorption method to determine carbon content and hydrogen content, and thermal conductivity method to determine nitrogen content;

◎ Fast test speed, high degree of automation, and the time for testing carbon, hydrogen and nitrogen is about 4 minutes;

◎ During the experiment, the option of “automatic cooling after the experiment” can be selected. After the experiment is completed, the computer will automatically shut down and the instrument will automatically cool down. No one can be on duty. No personnel are required to manually cool down and shut down after the test is completed;

◎ The experimental report can be prepared according to the customer’s requirements to reduce the customer’s workload;

◎ It can be connected to the laboratory management system to ensure that the balance data does not fall to the ground, and the test results are backed up and uploaded.

Specifications

Model	MJ-EC-CHN	MJ-EC-CH	MJ-EC-H	MJ-EC-HM
Measure range	C:0.005%~100%,H:0.01%～60%,N：0.008%～60%	C:0.005%～100%, H: 0.01%～60%	H：0.01%～60%	H:0.01%～20%
Method	Infrared spectral absorption thermal conductivity method	Infrared spectral absorption	Infrared spectral absorption	Coulomb method
Repeatability	C(Cad≤0.5%),H(Had≤0.15%),N(Nad≤0.08%)	C(Cad≤0.5%),H(Had≤0.15%)	H(Had≤0.15%)	H(Had≤0.15%)
Accuracy	Within the uncertainty range of the standard sample	Within the uncertainty range of the standard sample	Within the uncertainty range of the standard sample	Within the uncertainty range of the standard sample
Temp. range	RT+10～1050℃, ±1℃	RT+10～1050℃, ±1℃	RT+10～1050℃, ±1℃	RT+10～850℃, ±1℃
Sample quantity	Recommend 80～100mg	Recommend 80～100mg	Recommend 80～100mg	70±5mg
Sample feeding	Automatic	Automatic	Automatic	Manual
Sample quanatity	39 Pieces/batch, add/replace samples during the test, and purchase 78 sample trays for one-time setting out	39 Pieces/batch, add/replace samples during the test, and purchase 78 sample trays for one-time setting out	39 Pieces/batch, add/replace samples during the test, and purchase 78 sample trays for one-time setting out	1
Single sample process time	4min	4min	4min	8-15mins
Carrier gas	Helium, purity ≥ 99.995%, pressure 0.25 ± 0.1MPa	Helium, purity ≥ 99.995%, pressure 0.25 ± 0.1MPa	Helium, purity ≥ 99.995%, pressure 0.25 ± 0.1MPa	/
Auxiliary gas	Oxygen, purity ≥ 99.5% when measuring hydrocarbon element, purity ≥ 99.995% when measuring nitrogen element, pressure 0.25 ± 0.1MPa	Oxygen, purity ≥ 99.5% when measuring hydrocarbon element, purity ≥ 99.995% when measuring nitrogen element, pressure 0.25 ± 0.1MPa	Oxygen, purity ≥ 99.5% when measuring hydrocarbon element, purity ≥ 99.995% when measuring nitrogen element, pressure 0.25 ± 0.1MPa	Oxygen purity≥99.5%
Power gas	Inert gas, no oil, no water, pressure 0.29±0.1MPa	Inert gas, no oil, no water, pressure 0.29±0.1MPa	Inert gas, no oil, no water, pressure 0.29±0.1MPa	/
Power	≤4.5kw	≤4.5kw	≤4.5kw	≤4.5kw
Power supply	220VAC±10%, 50HZ	220VAC±10%, 50HZ	220VAC±10%, 50HZ	220VAC±10%, 50HZ
Type	Horizontal (can be placed on table)	Horizontal (can be placed on table)	Horizontal (can be placed on table)	Horizontal
Overall dimensions(mm)	690×740×720	690×740×720	690×740×720	920×470×440
Net wight(kg)	105	102	102	47

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