Infrared photometric oil analyzer

The infrared spectrophotometric oil analyzer is developed and manufactured in accordance with Chinese environmental protection standards HJ637-2018 “Determination of Petroleum Hydrocarbons and Animal/Vegetable Oils in Water by Infrared Spectrophotometry,” HJ1051-2019 “Determination of Petroleum Hydrocarbons in Soil by Infrared Spectrophotometry,” and “HJ1077-2019 Determination of Oil Fumes and Oil Mist in Exhaust Gas from Fixed Pollution Sources—Infrared Spectrophotometric Method.” This instrument is a specialized infrared spectroscopic analyzer designed for measuring oil content in surface water, groundwater, industrial wastewater, soil, exhaust gas from fixed pollution sources, oil fumes, and oil mist.

The infrared spectrophotometric oil analyzer can be widely applied in water environment monitoring systems, wastewater treatment plants, water supply companies, petrochemical industries, universities and research institutions, hydrology and water conservancy, metallurgy and steel, biopharmaceuticals, agricultural environmental monitoring, textile dyeing and printing, marine environmental monitoring, papermaking, pharmaceuticals, agricultural technology, and marine transportation sectors.

The infrared oil analyzer complies with the HJ637-2018 standard, using tetrachloroethylene to extract oil substances from water, determining the total extractable substances, then adsorbing the extract with magnesium silicate, removing animal and plant oils, and finally measuring the petroleum content. The concentrations of total extractables and petroleum hydrocarbons are determined by the wavenumbers 2930 cm⁻¹ (stretching vibration of the C-H bond in the CH₂ group), 2960 cm⁻¹ (stretching vibration of the C-H bond in the CH₃ group), and 3030 cm⁻¹ (stretching vibration of the C-H bond in aromatic hydrocarbons) are calculated using the absorbance values A2930, A2960, and A3030. The content of animal and vegetable oils is calculated as the difference between the total extractable substances and the petroleum hydrocarbon content.

• Compliant with standard HJ637-2018, the infrared three-wavenumber spectrum is clear, with accurate calibration, enabling clear display of the absorption spectra and absorbance values generated by the three wavenumbers.

• The instrument uses the Android 7.1 smart operating system and is equipped with a dedicated oil analyzer software developed by Holde Electronics, integrating spectrum display, scanning, analysis, and calculation functions.

• The instrument features an 8-inch high-definition color touchscreen, supporting touchscreen operation and optional wireless mouse and keyboard for convenient and efficient use.

• It employs a proprietary weak signal conditioning circuit to effectively shield noise interference, significantly enhancing detection accuracy and detection limits.

• It supports both calibration using correction coefficients and calibration using standard curves, with multiple calibration methods to meet the testing requirements of different environments. Users can also create their own standard curves.

• The instrument features a removable integrated optical system, resulting in a compact size, short optical path, and high energy output. The optical path design aligns with the characteristics of infrared spectroscopy, ensuring excellent stability and high signal-to-noise ratio.

• The light source has a lifespan of over 10,000 hours. It employs electrically modulated light source technology to prevent internal temperature fluctuations from affecting stability.

• Automatic synchronization with network time avoids inaccuracies in output certificate timestamps caused by prolonged instrument use leading to local time discrepancies.

• The use of an electrically modulated light source reduces heat generation, facilitating system cooling, while also simplifying instrument structure and enhancing reliability by eliminating mechanical light-cutting components.

• Highly automated program application allows users to perform single-step testing of all instrument functions, automatic wavelength scanning, and automatic correction via the Android system, ensuring more accurate data detection.

• Equipped with extractant purity detection functionality to effectively prevent detection data errors caused by extractant purity failing to meet standards.

• One-click program upgrade functionality eliminates the need for on-site engineer downloads; the app can be upgraded by inserting a USB drive.

• Supports Wi-Fi and Bluetooth data transmission, enabling wireless uploads to a cloud data management platform. Data can also be copied via USB drive without requiring drivers.

• Configured with the Holde Electronic Cloud Data Management Platform, detection results can be stored long-term for both short-term and long-term viewing and analysis, aiding in management.

• In addition to basic functions such as detection parameter settings, curve analysis, and historical data, the system also supports spectrum zoom in/out, allowing users to infinitely refine the spectrum for clearer observation of curves at low concentrations.

• Real-time automatic zero adjustment: the instrument simultaneously collects signals when the light source is on and when it is off, enabling real-time automatic zero adjustment, thereby simplifying operations and enhancing the long-term stability of signals.

• High measurement accuracy: utilizes a high-precision 24-bit AD conversion chip for analog-to-digital conversion, enabling accurate measurement of signals as small as the uV level.