Water Formaldehyde Concentration Meter

The formaldehyde concentration meter in water employs either the acetylacetone spectrophotometric method or electrochemical sensors. Formaldehyde reacts with reagents to produce a colored compound or generate an electrical signal, and the concentration is determined through colorimetry or current measurement. It is used to detect formaldehyde levels in drinking water, industrial wastewater, and other water bodies to ensure water quality safety.
Selection
When selecting, consider that the detection range covers practical needs, the methods comply with industry standards, the operational steps are straightforward, the maintenance costs of the instrument are low, the environmental adaptability meets the usage scenarios, and the data accuracy is validated through practical applications.

Terms

Standards

Instruments

The stainless steel inner box is used to ensure non-adsorption formaldehyde, the background concentration is as low as 0.006mg/m ³ and the holding time is long; Temperature range 15-40 ℃ accuracy +/- 0.5 ℃, humidity range 30-80% RH accuracy +/- 3%; low failure rate, the average initial maintenance interval exceeds 3 years.

$ 11321.00

MCU chip to achieve low power operation, equipped with intelligent Sensor to ensure detection accuracy ≤ +/- 3% F. S, Response Time ≤ 30 seconds, support 4-20mA, RS485 and switching signal output, easy access to various industrial control systems.

$ 267.00

Adopt MCU chip to achieve low power consumption operation, detection error ≤ +/- 3% F. S, Response Time ≤ 30 seconds, support 4-20mA, RS485 and switch output, can be operated by remote control without opening the lid, with explosion-proof protection structure.

$ 590.00

Adopt air jacket indirect temperature control to avoid condensation, dry moisture ratio control humidity Response fast, background concentration as low as formaldehyde ≤ 0.006mg/m ³, support automatic temperature control and humidity control and multiple safety protection, suitable for material environmental protection assessment.

$ 26699.00

Electrochemical sensor, formaldehyde detection range 0-20ppm, resolution 0.1ppm, with sound, light, vibration triple alarm, IP65 Protection Rating, built-in 1500mAh lithium battery can work continuously for 8 hours.

$ 235.00

Using electrochemistry detection principle, range 0~ 10ppm, with high definition color screen display and four Alarm modes, support wireless communication and remote monitoring, Protection Rating IP66, battery life up to 55 hours.

$ 566.00

Measurement range 0.23 nm g/L to 23 g/L, temperature compensation 5~ 50 ℃, suitable for high purity water and industrial drainage sodium ion concentration determination, repeatability error does not exceed 0.03pNa.

$ 262.00

Equipped with 7-inch TFT display, supports 5 ion Measuring methods, automatically recognizes ion selective ElectRode, can store 1000 sets of data, Measurement accuracy of +/- 1% F. S, suitable for a variety of Ion concentration detection.

$ 864.00

Equipped with 7-inch TFT display, supports 5 ion Measuring methods and a variety of concentration units, automatically recognizes ion selective ElectRode, can store 1000 sets of data, Measurement range 5 × 10~ 1M.

$ 864.00

Equipped with 7-inch TFT display, supports 5 ion Measuring methods, automatically recognizes ion selective ElectRode, can store 1000 sets of data, Measurement accuracy of +/- 0.5% F. S, suitable for a variety of Ion concentration detection.

$ 864.00

It can simultaneously detect 7 paraMeters such as PM2.5, formaldehyde, and TVOC, with an accuracy of +/- 10%. It is equipped with a 2.8-inch true color screen to display real-time trend charts, and supports 5000 data records and dual national standard selection.

$ 189.00

Pump-suction Sampling method, detection accuracy ≤ +/- 3%, resolution of 0.01ppm, Response Time T90 ≤ 20 seconds, built-in large-capacity battery, support for multi-Sensor expansion, with IP65 Protection Rating.

$ 432.00

Using 32-bit microprocessor and 24-bit ADC chip, equipped with 2.4-inch high definition color screen, supports 1-6 Sensor configurations, with 4-20mA output and RS485 communication, Protection Rating IP65, suitable for harsh environments.

$ 451.00

Water-jacketed heating system is used to ensure uniform temperature stability, temperature control accuracy of +/- 0.3 ℃, CO2 concentration control accuracy of 0.1% and double filtrate device, effectively maintain the clean foster environment and prevent pollution.

$ 2468.00

With manual and automatic temperature compensation function, Measurement range 0-6 PCL, resolution up to 0.01 PCL, easy operation and intuitive and accurate digital display, suitable for a variety of water quality monitoring scenarios.

$ 382.00

Articles

Operating Specifications for the Determination of Hexavalent Chromium Content in Wastewater Using Colorimetric Titration Apparatus
This article introduces the standard operating procedure for determining hexavalent chromium content in wastewater using a colorimetric titrator. The method is based on the reaction between hexavalent chromium and diphenylcarbazide under acidic conditions to form a purplish-red complex, with the titration endpoint determined by monitoring changes in absorbance at a wavelength of 540 nanometers.
Wavelength selection for the determination of sulfate content in water quality using photometric titrator
This article discusses how to select the wavelength when using a photometric titrator to determine the sulfate content in water. The core issue lies in the fact that wavelength selection directly affects the accuracy and anti-interference capability of the detection.
Application of Automatic Potentiometric Titrator in Chloride Ion Detection in Drinking Water
This article introduces a method for detecting chloride ions in drinking water using an automatic potentiometric titrator. The principle involves allowing chloride ions in the water sample to react with silver nitrate to form a precipitate. The instrument monitors changes in potential through an electrode, automatically determines the endpoint of the reaction, and calculates the chloride ion content.
Key operational points for determining chloride ion content in water using automatic potentiometric titrators
This article introduces a method for measuring chloride ions in water using an automatic potentiometric titrator. It is based on silver nitrate titration, where the endpoint is automatically determined by a sharp change in electrode potential, offering greater accuracy and higher automation compared to traditional methods.
Key Technical Points for Determining Arsenic and Mercury in Water Using Atomic Fluorescence Spectrophotometry
This article introduces the key techniques for determining arsenic and mercury in water using an atomic fluorescence spectrometer. The experiment requires attention to safety precautions, regular maintenance of the instrument, and proper disposal of waste liquids.
Principles and Advantages of Ion Chromatography for Determining Anions in Water
Ion chromatography separates anions in water samples through an ion exchange column, then reduces background conductivity and enhances signals via a suppressor, and finally measures and quantifies them using a conductivity detector.
How does the instrument calculate total dissolved solids in water from conductivity?
This article explains how TDS instruments estimate total dissolved solids by measuring the electrical conductivity of water. Since most dissolved solids exist in ionic form, which affects conductivity, there is a correlation between the two.