Limiting Oxygen Index Tester Manufacturer in China
Get a quote：
Whats/App: +86 156 1874 6768
Web: standard-groups.com
E-mail：info@standard-groups。com
Features
Imported sensors
Imported Paramagnetic oxygen concentration sensor with high precision and stable performance.Real-time detection of oxygen concentration with PLC precise control so that can adjust the oxygen concentration through the airflow.
Flexible fixture design
The fixture is made of refractory and stainless material, which can resist high temperature and rust.It can hold various samples.By replacing the sample holder, the sample requirements of different characteristics can be fulfilled.
Linited Oxygmn Indes Testet
Intelligent touch operation 7-inch color screen, intelligent touch, multi-touch operating system, convenient operation, multi-language display, switching between
Chinese and English.Simplified operation interface, easy to operate
Quick change structural design
The test tube of this instrument which is made of high temperature resistant transparent glass combing with the base adopts quick change design to clearly observe the combustion situation in the test. Moreover, it is easy to clean after the test. The stainless steel base can avoid the influence of various corrosion on the test data, and its service life is long.
Parameters
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Operating mode: Full color touch screen control |
Control range:0~100%, ±0.2% |
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Language:Chinese-English interface |
Inlet air pressure:≤1MPa |
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Burner:Inner Radius79mm;height500mm |
test air pressure:0.15-0.2MPa |
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Glass beads: 4mm,height 80-100mm |
Gas flow rate: 12.01L/min |
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Igniter inner diameter:2mm |
Dimension:700 mmx750mmx460 mm |
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Igniter length:400mm |
Weight:45kg |
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Air inlet: 7mm |
Power supply:220V 50Hz |
Test Procedure
Install the sample and adjust the burner angle.
Adjust the O₂/N₂ flow rate to the initial concentration (e.g., 18% or 25%).
Ignite the sample and record the burning time or flame front position.
Adjust the oxygen concentration based on the burning behavior, and repeat the test until the accuracy requirements are met (the difference between three test results < 0.5%).
Result Analysis: Calculate the average of the three oxygen concentrations to determine the LOI value of the material.
Safety Precautions
Personal Protective Equipment: Operators must wear safety glasses and gloves to avoid injury from smoke or flames.
Gas Management:
The purity of the oxygen cylinder must be calibrated regularly, and the nitrogen cylinder pressure should not be less than 1MPa.
Adjust the flow rate evenly to avoid sudden changes in gas pressure.
Equipment Maintenance:
Regularly clean the combustion tube and igniter, and remove combustion residue.
If any problems occur, please contact professional personnel for repair; do not disassemble components yourself.
Ventilation Requirements: The test must be conducted in a fume hood to prevent the accumulation of exhaust gases.
Maintenance Information
(1) Clean the combustion tube and igniter regularly to remove residue.
(2) Inspect oxygen and nitrogen cylinders for proper pressure and purity.
(3) Avoid disassembling critical components; contact professional personnel for repairs.
(4) Ensure proper ventilation to avoid accumulation of exhaust gases.
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