LS3700 Metal Surface Oil Content Analyzer

Principle:

When monochromatic light passes through the measured solution, its energy is absorbed. The degree of light intensity absorption is proportional to the concentration of the substance being measured, in accordance with the Lambert-Beer law: A = log(1/T) = log(I₀/I) = a × b × c

Infrared spectrometers utilize the absorption characteristics of substances to infrared radiation at different wavelengths, serving as precision optical instruments for molecular structure analysis and hydrocarbon content measurement.

Using environmentally friendly reagents to elute hydrocarbon oils from samples, the total oil content is calculated based on absorbance at three infrared wavenumbers: 2930 cm⁻¹ (C-H bond in CH₂ group), 2960 cm⁻¹ (stretching vibration of C-H bond in CH₃ group), and 3030 cm⁻¹ (stretching vibration of C-H bond in aromatic rings), achieving precise analysis.

Complies with Standards: JB/T6896-2007 Metal Surface Cleanliness Oil Content Analysis

GB/T28125.2-2020 Residual Oil Testing in Air Separation Processes

HJ637-2018 Determination of Petroleum Content in Water Quality

Application Fields:

Applied industries: wire materials, valves, alloys, air conditioning appliances, compressor refrigeration finned copper tubes, special steels,

non-ferrous metal materials, ships, environmental science, electric power, metal material science, polymer chemistry, coal

structure research, petroleum industry, biomedical science, biochemistry, fundamental research in inorganic and coordination chemistry, semiconductor

materials, daily chemical industry, and other research fields.

Spectral Features:

1. Utilizes imported optical platform system with short optical path and high energy, meeting infrared spectral requirements, excellent stability,

high signal-to-noise ratio.

2. Dedicated analysis data system calculates only the oil content results on the inner wall of copper tubes.

3. Continuous spectrum scanning function, high-contrast sample spectra, accurately distinguishing oil content results, automatic calculation, measurement results automatically saved with 100,000 records, results, test spectra, and set conditions can be queried, printed as test reports, featuring mathematical statistics, spectrum display, storage, etc.

3. Data automatically exported in file format report storage system.

4. Complies with national standard for metal surface cleanliness measurement.

5. Automatically sets measurement wavenumbers at 2930 cm⁻¹, 2960 cm⁻¹, 3030 cm⁻¹, also supports three-point measurement.

7. Multiple cleaning agents available for testing.

Technical Parameters:

Analysis of residual oil content on metal surfaces, provides various environmentally friendly cleaning agents.

Wavenumber range: 3400 cm⁻¹ ~ 2400 cm⁻¹ (2930, 2960, 3030 three wavelengths) Technology:

Motor subdivision drive technology

Precision: ppb level micrograms

Blank solvent zeroing: Automatic

Data analysis: Automatic

Basic range: 0 ~ 80,000 mg

Detection concentration: 0.001 mg

Baseline drift less than 0.005 AU/30 min

Repeatability: RSD ≤ 0.5%

Linear correlation coefficient r > 0.999

Absorbance range: 0.0000 ~ 4.0000 AU Wavenumber accuracy: ±1 cm⁻¹

Resolution: 0.001 μm

Measurement concentration: 100% oil

Results: Scanning, 38 seconds per scan; non-dispersive infrared method 2 seconds, fixed-point scanning 1 second

Temperature: -5 ~ 50°C, Relative humidity: 20 ~ 95%

Main unit power: (220 ± 22) V, (50 ± 1) Hz, 50 VA |

Supporting Services:

1: Complete automatic testing based on usage requirements.

2: Provide various environmentally friendly cleaning agents.

3: Automate the analysis process, avoiding human exposure to toxic and harmful gases.

4: Supply calibration liquids tailored to the characteristics of metal oils.