Scope of application:

Suitable for measuring the total sulfur content in coal, coke, petroleum, biofuels, and other solid minerals in industries such as electricity, coal, environmental protection, energy conservation, petrochemicals, metallurgy, cement, papermaking, and research institutions.

Technical Specifications:

Testing method: Infrared spectroscopy absorption method
Temperature control range: Room temperature to 1450 ℃ (generally 1300 ℃± 1 ℃)
Temperature control accuracy: ± 1 ℃

Test time: ≤110s (single sample)
Measurement range: 0.001% to 50% (can be expanded to 100.00% according to user needs)

Sample weight:100mg～500mg
Typical sample weight: (300 ± 50) mg
Sulfur measurement resolution: 0.0001%
Precision: superior to the requirements of relevant standards such as GB/T 25214-2010 "Determination of Total Sulfur in Coal by Infrared Spectroscopy" and GB/T 214-2007 "Determination of Total Sulfur in Coal"
Power:<4kW
Power supply: AC220V ± 22V, 50Hz ± 1Hz
Weight: 52kg

Introduction to Technical Features:

1) High stability and good safety: Infrared method uses characteristic spectrum to detect the concentration of sulfur dioxide, and there is no chemical reaction in the analysis process after sample combustion, which improves the instrument and reduces the failure rate. No need to prepare chemical reagents, safer work, and no need to add catalysts such as tungsten trioxide, ensuring smooth gas flow.
2) Good stability: The characteristic spectrum of infrared method only absorbs sulfur dioxide molecules, and the testing process is not affected by other gases, without any chemical reactions. It has good stability and reliable test results. At the same time, an automatic gas blowing device and an air curtain were designed to ensure that they are not affected by external sulfur dioxide. In addition, the combustion temperature of the infrared method can be set to 1350 ℃, which enables the decomposition of sulfur, which is difficult to decompose in sulfates. Due to the higher temperature, the test results are more stable.
3) The sample analysis amount of infrared method is about 300 milligrams, while Coulomb method is only 50 milligrams, resulting in smaller errors caused by sample non-uniformity and weighing deviation.
4) Fast testing speed: The testing time for one sample does not exceed 2 minutes.
5) Easy to operate: No need to prepare chemical reagents, no need to add tungsten trioxide

6) Stable and reliable operation of the instrument: All key components are designed with strict control principles, and the instrument can operate stably for a long time. No need for frequent calibration or correction: After calibration, the instrument can remain stable for a long time, solving the problem of similar instruments needing to be recalibrated after each startup.
7) Infrared analysis room without drift: The infrared analysis room adopts a modular design with a constant temperature system. The infrared analysis room operates in a temperature environment with a uniform temperature field and a temperature fluctuation of ± 0.1 ℃, and is not affected by changes in ambient temperature; The infrared analysis room is equipped with a shielding device, which is not affected by external signal interference. The infrared analysis room operates stably and without drift.
8) Gas flow control: using an automatic electronic mass flow controller, digital display of gas flow rate, with automatic adjustment function, can stably control gas flow rate, and calculate results more accurately.
9) Full combustion of the sample: A double-layer corundum combustion tube is used, which has a secondary combustion function and is conducive to the full combustion of the sample.
10) No internal vibration influence: The suction pump is fixed by a suspended elastic method, and the instrument is not affected by the vibration of the suction pump, with low noise.
11) The designed automatic blowing and air intake device; When conducting air tightness testing on instruments, there is no need to open the furnace cover, which is simple and easy to implement.
16) Reserved standard interface: It can easily connect to the local area network.