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When measuring a sample, the salinity sensor first obtains an accurate conductivity value, which is then converted into salinity through an internal algorithm. Conductance or resistance is determined by measuring the current and voltage across the electrodes of the conductivity cell. Conductance (G) is defined as the reciprocal…
Salinity Sensor
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Infrared scattering light technology involves directing a light beam onto the sample solution, where suspended solids scatter the light. The infrared light source emits light at a specific angle relative to the detection path. The intensity of the light received by the detector correlates with the concentration of suspended…
S.S. Sensor
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The latest RLGD-100 is developed on a well-proven technology platform. The RLGD-100 is a portable detector that allows high-sensitivity real-time detection of methane from a distance. Methane leaks can be quickly monitored by pointing the laser beam towards the suspected leak or along the survey line. It enables easy access to…
RLGD-100 Remote Laser CH4 Detector
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A constant potential is applied between the measuring and reference electrodes to form a micro-current measurement system consisting of two platinum electrodes (working and counter electrodes) and a reference electrode. Hypochlorous acid undergoes redox reactions on the surface of the working electrode, generating a current…
Residual Chlorine Electrode
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A pH buffer reagent is added to the water sample to adjust the pH to approximately 6.2–6.5. Free chlorine reacts directly with N,N-diethyl-1,4-phenylenediamine (DPD reagent) to form a red-colored compound. The absorbance of this compound is then measured at a wavelength of 510 nm to determine the free chlorine concentration.
Residual Chlorine by Chemical Method
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The redox sensor uses a platinum electrode as the indicator electrode, and an Ag/AgCl reference electrode forms a galvanic cell with the water sample. The redox potential of the platinum electrode relative to the saturated Ag/AgCl reference electrode is measured with an electronic millivoltmeter, then converted to the redox…
Redox Potential Sensor
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The flow velocity is measured using the reflection characteristics of radar signals. The instrument emits pulsed radio waves and receives signals reflected by particles within the fluid, such as bubbles and suspended solids. According to the Doppler effect, when particles move in the same direction as the fluid flow, the…
Radar Velocity Sensor
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The radar water level sensor emits radar pulses through its antenna, which also receives the pulses reflected from the water surface and records the time. By measuring the time difference between the transmission and reception of the electromagnetic wave, the radar level meter calculates the distance to the water surface. The…
Radar Level Transmitter
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In acoustics, when there is relative motion between the sound source and the observer, the Doppler effect occurs. In this case, the frequency of the echo heard by the observer differs from the original source frequency; this change is called the Doppler frequency shift. Electromagnetic waves also exhibit the Doppler effect,…
Radar Flow Meter
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FPI has developed the high-performance ProMars-6000 Industrial Online Mass Spectrometer by utilizing advanced international mass spectrometry technology. The instrument features a high-quality quadrupole mass analyzer and specialized analysis software designed for process gas detection, providing real-time multi-component,…
ProMars-6000 Industrial Online Mass Spectrometer
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The ProGC-3600 represents a breakthrough in industrial chromatography analyzers, developed exclusively by Focused Photonics Inc. (FPI) with full intellectual property rights. This process gas chromatograph stands apart from traditional benchtop models by integrating high-precision column cutting and injection technologies,…
ProGC-3600 Industrial Online Chromatography Analyzer
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ProGC-3500 industrial online chromatography analyzer is one of industrial chromatography products developed by FPI with independent intellectual property rights. It is different from the laboratory benchtop chromatography, using high precision program-controlled column cutting technology and column system injection technology,…
ProGC-3500 Industrial Online Chromatography Analyzer
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ProGC-3000 industrial online chromatography analyzer is one of industrial chromatography products developed by FPI with independent intellectual property rights. It is different from the laboratory benchtop chromatography, using high precision program-controlled column cutting technology and column system injection technology,…
ProGC-3000 Industrial Online Chromatography Analyzer
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The Portable Water Quality Analyzer (for COD, Ammonia Nitrogen, Total Phosphorus, Total Nitrogen, etc.) adopts a high-brightness quasi-parallel LED cold light source and advanced German optical structure design. Based on the principle of characteristic absorption spectra of substances in the visible light range and the…
Portable Water Quality Analyzer
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The portable turbidity meter combines the scattered light method and transmitted light method, utilizing a near-infrared light source to eliminate color interference. Equipped with 90° and 180° detectors, multiple lenses, and high-precision optical components such as filters, it ensures more accurate and stable measurements by…
Portable Turbidity Analyzer
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PMS-200M accepts closed-loop response control technology to sample multiple gaseous and particulate samples simultaneously in the atmosphere. It can monitor meteorological parameters such as atmospheric humidity, pressure, temperature and wind speed in real time.
PMS-200M Multi-channel PM Sampler
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PMS-200A is a small flow automatic membrane changer sampler, which can be applied to continuous measuring of PM2.5 and PM10. The PMS-200A system consists of a PM10 cutting head, a PM2.5 cutter, an atmospheric temperature detection unit, an automatic filter replacement unit, a flow control system, and a temperature control…
PMS-200A PM Sampler (PM2.5,PM10)
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The sensor collects the potential difference between the reference electrode and the glass hydrogen ion indicator electrode, as well as the resistance value from the thermistor to obtain the water temperature. Based on the Nernst equation, the potential is then converted into a pH value.
ph sensor
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Photolytic rate of some critical reactant and free radical (O(1D), NO 2 , H 2 O 2 , HONO, HCHO etc.) are key indicators for identify status & extent of photochemical pollution.The analyzer is receiving solar radiation by quartz probe and transferring the radiation to spectrum via optical quartz fiber, the spectrum data will be…
PFS-100 Photolysis Analyzer
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63 Ni radiation source in ECD for less than 6 fg/ml detection limit. Guaranteed stability owes to Integrated auto purging function prevents any contaminant on nickle source.
PANs-1000 PAN Analyzer
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ONH5000 Oxygen, Nitrogen and Hydrogen Analyzer is a high-performance analyzer for fast and accurate analysis of oxygen, nitrogen and hydrogen elements. The whole machine adopts modular and integrated design with six independent hardware module units, which is suitable for the determination of oxygen, nitrogen and hydrogen…
ONH5000 Oxygen, Nitrogen & Hydrogen Analyzer
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OMA-3510 SRU analyzer adopts modularization and stationary ultraviolet spectrometry technology. It is integrated with a pressure relief probe, sample conditioning system, and analyzer for multiple component measurements to solve the problems of sulfur recovery measurements effectively. Principle This analyzer adopts UV…
OMA-3510 SRU Analyzer (H2S,SO2)
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The OMA-3000 series of online UV fiber optic spectrometers incorporates advanced technologies such as diode array detection, fiber optic transmission, and chemometric algorithms to enable real-time analysis of process gas concentrations. The OMA-3000 is widely applicable in industrial processes, environmental protection, and…
OMA-3000 Online UV Fiber Spectrometer
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The sensor uses ultraviolet fluorescence to monitor oil content in water. It quantitatively analyzes the oil concentration based on the fluorescence intensity emitted after petroleum and its aromatic hydrocarbons, as well as compounds containing conjugated double bonds, absorb ultraviolet light. Aromatic hydrocarbons in…
Oil in Water Sensor
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The OCEC-100 is an atmospheric organic carbon (OC) and elemental carbon (EC) online analyzer based on the thermal-optical method. It was developed jointly by FPI and Peking University with the objective of addressing the current pollution status of carbonaceous components in aerosols. The instrument combines years of experience…
OCEC-100 Carbon Analyzer
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pH: The pH value is determined by collecting the potential difference between a reference electrode and a glass hydrogen ion-selective electrode, along with the thermistor value. The temperature is obtained from the thermistor, and the potential is converted to a pH value using the Nernst equation: E = E₀ − 2.303 × t ×…
Multi-Parameter Drinking Water Analyzer
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The MiX5 Pro XRF analyzer series provideselemental analysis for fast alloy gradeidentification and sorting at an affordableprice. The MiX5 Pro 500/550 Element analyzerfor affordable alloy ID and MiX5 Pro 600analyzer for affordable light element detection. Feature fast grade ID and clear on-screengrade comparison on a…
MiX5 Pro Series -Handheld XRF Analyzer
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Metals analyzer creatively combined with world leading argon circulation technology enables the analysis of Fe, Al, Cu and other bases materials. It is an ideal solution to fast and accurate quanti-tative analysis near the furnace, metal material quality control and scientific research. Principle M5000 series adopt the most…
M5000 Spark AES Metal Analyzer
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LGA-C300 calorific value laser gas analyzer system based on TDLAS technology for continuous and accurate measuring various of combustible gas components (such as CO/CH4) in gas, through transfer gas composition to effective calorific value to measure gas caloric value and realize the online monitoring and process optimization…
LGA-C300 Calorific Value Laser Gas Analyzer
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The LGA-8100 laser gas analyzer is based on tunable diode laser absorption spectroscopy (TDLAS) technology. It can detect and analyze gas concentrations in harsh environments such as dusty and high temperatures and corrosive areas while maintaining a high level of safety, quick response time, high measurement accuracy, and ease…
LGA-8100 Laser Gas Analyzer (TDLAS)