description

Scope of Analysis:
Oxygen: 0.00005% to 3.0%

Expand the analysis range by changing the sample size.
2 Minimum readings:

0.000001%
3. Analysis accuracy (reproducibility):

Oxygen: 1.0ppm or RSD ≤ 1.0%

4 Analysis time:

120～180s
5. Weighing accuracy of electronic balance:

0.0001g
6 Analysis methods:

infrared absorption method
7 pulse heating furnace:
High current: 1500A;
High power: 8KVA;
High temperature: 3000 ℃;
Carrier gas: high-purity argon gas 99.999%, 0.40MPa.
Power gas: ordinary nitrogen or purified compressed air (excluding oil and water), 0.25MPa.
Chemical reagents: magnesium perchlorate, alkali asbestos.
8. Scope of application of the instrument:
Determination of oxygen content in ferrous metals, non-ferrous metals, alloys, zirconium, titanium, molybdenum, nickel, ceramics, rare earths, magnetic materials, and other solid materials.
FEATURES
1. Overall structure:
The whole machine adopts a modular integrated design, with four independent modules including pulse electrode furnace, gas system, circuit system, and detection system integrated into a floor standing host, with a simple and elegant appearance. It has the functions of automatic zero adjustment and automatic switching between high and low ranges. The control of the entire machine is achieved using a universal 64 bit computer, with a 32-bit embedded ARM microcomputer control and a 24 bit high-precision data acquisition system in the host, meeting the requirements for high control accuracy and speed.
2-electrode furnace system
The heating temperature of the pulse electrode furnace is high, and the power is controlled by a program, which can provide constant power heating and slope riseMultiple program heating methods such as temperature and segmented heating are used to improve analysis accuracy, suitable for low temperature applications such as aluminum alloysRapid analysis of melting point materials to high melting point materials such as tungsten alloys.
The electrode is suitable for various types of crucibles, and can be selected according to the release situation of different samples, including a set of cruciblesVarious crucibles, including high-temperature crucibles, effectively reduce user usage costs.
The electrode cooling adopts a single cycle independent cooling system, which can be directly connected to circulating water or external water cooling devices, and has the characteristics of good cooling effect and high reliability.
3 Gas System
*Due to its integrated floor standing design, the entire machine has a spacious interior and greatly reduces the number of air system connection routes,The overall pneumatic system is more concise and reliable.
*The pneumatic components, including solenoid valves, cylinders, pneumatic pipes, and pneumatic joints, are all imported components (the lifespan of solenoid valves can reach over one million cycles). The unique three-axis guiding cylinder can ensure the smooth lifting and lowering of the electrode, ensure good contact between the graphite crucible and the upper electrode, and ensure uniform force on the graphite crucible, which is conducive to long-term high-temperature heating. The automatic feeding furnace head with air curtain protection and automatic air blowing mechanism effectively ensure the accuracy of oxygen element analysis.
*The furnace head is a separate structure, and the upper and lower electrodes are easy to disassemble and replace. The lower electrodes are made of high-temperature alloy material, which has a long service life and low usage cost, avoiding the trouble of using a whole furnace head and requiring professional technicians to replace the electrodes.
*The pollutants are discharged from the furnace top and do not enter the system. It is easy to operate and does not require high sealing requirements for the system.
*The injection device is simple and can automatically inject samples, making it easy to maintain and clean in case of abnormal faults.
*The use of electronic microflow sensors for high-precision flow control reduces the impact of airflow changes on analysis.
4 Circuit System
The circuit system adopts large-scale integrated circuit boards, and the power supply adopts solid-state power modules with short-circuit protection function. The power modules are resistant to current impact, strong anti-interference ability, dust-proof, simple and reliable;
5 Oxygen detection system
5.1 Analysis method: Infrared absorption method;
5.2 Oxygen detector:
Integrated solid-state infrared sensor for oxygen measurement, with multiple range infrared detection cells available. Selection of infrared light sources, long-life precious metal miniature infrared emitters, and gold-plated metal reflectors; The modulation system adopts a high-precision stepper motor controlled by a microcontroller, achieving long-term stability of modulation frequency. Combined with internationally advanced narrowband filters and high-precision A/D sampling cards, the whole machine has extremely high detection sensitivity and can effectively detect oxygen content at the ppm level. Baoying adopts advanced temperature compensated semiconductor detectors to ensure that the instrument is minimally affected by external factors and has a stable baseline.
6 Application software
Chinese application software on Windows operating system, PC interface adopts data exchange technologyBuilt a system working mode for communication between upper and lower computers, with multiple windows and multitasking operations, in the databaseIn terms of management, it has achieved automatic data storage, powerful functions, and multiple filtering database retrievalEngine, remote monitoring of database through network, dynamic synchronous display and storage of work curvesThere are dozens of functions such as zooming in and multi-level comparison of multiple curves.
7. Main functions of the software:
1. Quickly display the results and analysis curves of the analysis;
2. Automatic storage of analysis results;
3. Automatic input of sample weight;
4. Automatic switching between high and low content;
5. Real time monitoring of instrument parameters;
6. Automatic alarm when an error occurs;
7. Drawing and storing dynamic release curves, unloading;
8. There are multiple calibration modes for analyzing results, which can be manually calibrated or calibrated based on the analysis results;Can be calibrated at a single point or multiple points;
9. Filter the data, calculate the average, standard deviation, relative deviation, etc;
10. The new software can design several calibration lines according to user applications, greatly facilitating users'use;
11. The host can be connected to computers, printers, electronic scales, etc. to achieve data transmission;
12. Adjustments can be made to the analysis time and blank values;
13. Users can store multiple analysis methods for different analysis samples;
14. Can store a large number of sample weights (quantity limited only by computer hard disk capacity);
15. Can output result reports in a regular format;
16. Can connect with user databases to achieve remote transmission of analysis results, making it easy to achieve analysis resultsNetworked management of fruits;
17. Can quickly perform instrument blank measurement;
18. Can store and edit sample numbers;
19. Can be applied to automatic sampling to achieve automated operation of instruments;
20. Equipped with 16 channels, which can be freely configured and used according to different analysis materials and contents;