Do1200 and do1200tc dissolved oxygen sensors Item no.: do1200/h, do1200/t, do1200tc/h, do1200tc/t, 971598, 971598tc Reliable galvanic sensing technology Compact 12mm design For portable, laboratory or on-line use Optional integral atc element Easy to use pre-membraned replacement caps The do1200 and do1200tc feature dependable galvanic technology. No warm up period is required. Sensors are supplied with fast responding hdpe membrane caps for portable or lab use. Optional ptfe membrane caps are available for on-line or heavy uv exposure applications. Fill solution is replaceable when required. The do1200 is supplied without internal temperature compensation. The do1200tc can be supplied with a variety of user defined atc elements. Standard cable length is 2.5 feet with a tinned lead termination. Longer cable lengths and connectors are available for an additional charge. For on-line use, our fc75p 3/4 inch in-line fitting may be ordered to provide for mounting into 3/4 inch fnpt threaded tees. Do1200 laboratory dissolved oxygen sensor specifications Range: 0-20 mg/l Body material: epoxy and noryl Max temperature: 50 degrees c Saturation output: Hdpe = 47mv +/- 9mv, Ptfe = 33mv+/-9mv Pressure: 0-100 psig (7.5 bar) Calibration: single point in air Response time: after equilibration, hdpe 1 minute for 2mv, ptfe 2 minutes for 2mv
Do1200 and do1200tc dissolved oxygen sensors Item no.: do1200/h, do1200/t, do1200tc/h, do1200tc/t, 971598, 971598tc Do1200 dissolved oxygen sensor features * reliable galvanic sensing technology * compact 12mm design * for portable, laboratory or on-line use * optional integral atc element * easy to use pre-membraned replacement caps Do1200 dissolved oxygen sensor description The do1200 and do1200tc feature dependable galvanic technology. No warm up period is required. Sensors are supplied with fast responding hdpe membrane caps for portable or lab use. Optional ptfe membrane caps are available for on-line or heavy uv exposure applications. Fill solution is replaceable when required. The do1200 is supplied without internal temperature compensation. The do1200tc can be supplied with a variety of user defined atc elements. Standard cable length is 2.5 feet with a tinned lead termination. Longer cable lengths and connectors are available for an additional charge. For on-line use, our fc75p 3/4 inch in-line fitting may be ordered to provide for mounting into 3/4 inch fnpt threaded tees. Do1200 dissolved oxygen sensor specifications * range: 0-20 mg/l * body material: epoxy and noryl * max temperature: 50 degrees c * saturation output: hdpe = 47mv +/- 9mv, ptfe = 33mv+/-9mv * pressure: 0-100 psig (7.5 bar) * calibration: single point in air * response time: after equilibration, hdpe 1 minute for 2mv, ptfe 2 minutes for 2mv
1.Name: Sodium nitrate Chemical formula: NaNO3 Formula weght:84.99 2.Property: (1) ordinary sodium nitrate: white little crystals or light yellow (2) dry powder sodium nitrate: non-caking, showing loose status. Density:2.257. It is liable to deliquesce, dissolved in water, soluble in liquid ammonia, slightly soluble in ethanol and glycerin, Melting Point:308. While being heated up to about 380 it will decompose and release oxygen and turn into sodium nitrite,as the heating goes on, it will decompose into oxygen, nitrogen and nitrogen oxide. It has strong oxidability and can cause combustion explosion if being mixed with organic substance, sulfur, sodium nitrate etc. 3. Usage:Â it has been wildly used in the glass industry, dye, dynamite, metallurgy, machinery, ceramic etc. 4. Specification: (Technical Standards:GB/T4553-2002) Item Unit High G. First G. Qualified G. Dry powder G. Assay % 99.7 99.3 98.5 99.3 Sodium nitrite % 0.01 0.02 0.15 0.02 Chlorides % 0.25 0.30 -- 0.25 Water insolubles % 0.03 0.06 -- 0.03 Moisture % 1.0 1.5 2.00 0.2 Carbonates % 0.05 0.10 -- 0.1 Iron % 0.005 -- -- 0.005 Loose degree -- -- -- 95 5.Package: net 25kg/50kg net each in plasic woven inner plasic bag,or 500kg net each in flexible container.
WQ401 Dissolved Oxygen Sensor Description WQ401 Dissolved Oxygen Sensor is a rugged and reliable water oxygen measuring device. The WQ401's sensor is attached to 25 ft of marine grade cable, with lengths up to 500 ft available upon request. The sensor's output is 4-20 mA with a three wire configuration. The sensor's electronics are completely encapsulated in marine grade epoxy within a stainless steel housing. The unit uses a removable shield and dissolved oxygen element for easy maintenance. WQ401 Dissolved Oxygen Sensor Features * Measure dissolved oxygen in situ * Fully encapsulated electronics * 4-20 mA output * Marine grade cable with strain relief * Stainless steel housing * Replaceable dissolved oxygen element WQ401 Dissolved Oxygen Sensor Applications Ideal for stream and lake monitoring, aquaculture studies, baseline analyses, mitigation monitoring, and other environmental applications. WQ401 Dissolved Oxygen Sensor Specifications * Output: 4-20 mA * Range: 0 to 100% saturation, 0 to 8 ppm, temperature compensated to 77'F (25'C) * Accuracy: ±0.5% full scale * Maximum Pressure: 40 psi * Operating Voltage: 10 to 36 VDC * Current Draw: 15.5 mA plus sensor output * Warm-up Time: 10 seconds minimum * Operating Temperature: -40 to +131'F (-40 to +55'C)
OPTOD Optical Dissolved Oxygen & Temperature Sensor Optical technology: The OPTOD sensor is based on luminescent optical technology and is approved by the ASTM International Standard Method D888-05. Without calibration requirements, and thanks to an ultra low power technology, the OPTOD sensor is suitable for field work as well as long and short term monitoring. With no oxygen consumption, this technology gives an accurate measure in all situations, even in very low oxygen concentrations. Digital Technology: The "smart" OPTOD sensor stores calibration and history data within the sensor. This allows you a "plug and play" system without re-calibration. Digitally optimised measurement technology * Optical luminescence technology requires minimal maintenance * Digital sensor: Modbus RS-485 * No calibration required and therefore little to no drift occurs * Robust and Watertight OPTOD Optical Dissolved Oxygen & Temperature Sensor Applications * Industrial effluent treatment * Urban waste water treatment * Surface water monitoring * Drinking water OPTOD Optical Dissolved Oxygen & Temperature Sensor Specifications * Measurement ranges: 0.00 to 20.00 mg/L * Resolution: 0,01 * Accuracy: +/- 0.1mg/L, +/- 0.1 ppm, +/- 1 % * Response time: 90% of the value in less than 60 seconds * Temperature compensation: Via CTN * Operating temperature: -10°C to +60'C * Signal interface: Modbus RS-485 (standard) and SDI-12 (option) * Sensor power-supply: 5 to 12 volts
Do sensor dissolved oxygen sensor water quality control sensor kds-25b Model number: kds-25b Description The gs yuasa dissolved oxygen sensor kds-25b is a unique Galvanic cell type sensor which was developed for water quality Control. Its most notable features are long life expectancy and it Is not influenced by co2. Features: * long life * virtually no influence from co2 * no external power supply required for sensor Operation * no warmup time is required Applications: * water quality control
Wq-fdo optical dissolved oxygen sensor description The wq-fdo optical dissolved oxygen transmitter is an instrument designed for measuring dissolved oxygen concentrations in liquids. The wq-fdo optical dissolved oxygen transmitters were developed to meet different requirements ranging from surface water monitoring programs to harsh waste water applications. The optical dissolved oxygen transmitter has been specifically designed to meet the demanding requirements of the environmental monitoring and scientific research sectors, providing long term, accurate and reliable dissolved oxygen measurement. The wq-fdo optical dissolved oxygen transmitter has extremely low power requirements and a 4-20 ma output making it ideal for incorporation into remote environmental monitoring installations. Wq-fdo optical dissolved oxygen sensor features * extremely fast and precise optical do sensor - outstanding for field and lab applications * proven green light technology for long operation life of sensor * beveled membrane repells interference that can be caused by air bubbles * universal protective armoring available * low power consumption and low maintenance * simple to integrate and operate * one year sensor life Wq-fdo optical dissolved oxygen sensor applications Long and short term monitoring for streams, rivers, lakes, aquaculture, thermocline profiling, industrial outfalls, wastewater, scientific research, homeland security, the food and wine industry, and more. Wq-fdo optical dissolved oxygen sensor specifications * dissolved oxygen accuracy: â± 0.5 % of value * dissolved oxygen repeatability: 0.01 ppmâ?? * temperatureâ?? accuracy: â±0.2'f (â±0.1'c)â?? * temperatureâ?? resolution:â?? 0.02'f (0.01'c)â?? * temperatureâ?? range: 32 to 122'f (0 to 50'câ?? * max pressure: 35 psi (25m/82ft water depth)â?? * operating voltage: 10-30 vdcâ?? * warm up time: 6 sec. Min, 8 recommendedâ??
Y504-a dissolved oxygen sensor description The sensor is based on optical fluorescence lifetime quenching technique. Its technical procedure meets astm d888-09 standard for optical sensing of dissolved oxygen. This online sensor is developed to integrate with yosemite wireless monitoring system. Its rugged design and large measurement range make it ideal for sampling, flow cell, ground water and waste water measurements. Y504-a dissolved oxygen sensor applications Fish farmer, waste water plant, river, stream, and ocean monitoring Y504-a dissolved oxygen sensor feature , 0-20mg/l or 0-200% saturation , 0~50'c; ip68 rating , membraneless, no electrodes design , no oxygen consumption , flow independent , automatic temperature compensation , no h2s interference , low drift, fast response, and more accurate , low maintenance, low operating cost , easy sensor cap replacement , rs-485; modbus protocol compatible Y504-a dissolved oxygen sensor technical specifications , range, : 0-20mg/l or 0-200% saturation, , response time: 10 sec , housing ip rating: ip68, , accuracy: 1%, , drift:
Rdo-200 fluorescence dissolved oxygen sensor application Widely used in online dissolved oxygen monitoring for power plant, chemical, industrial wastewater, pharmaceutical, biochemical and water treatment industry. Rdo-200 fluorescence dissolved oxygen sensor feature * 0-20mg/l or 0-200% saturation * 0 ~ 50'c; ip68 protection rating * no film, no electrolyte, not polarization * no consumption of oxygen, the flow rate is not affected * built-in temperature sensor, automatic temperature compensation * chemical interference from sulfide * in drift, fast response, more accurate measurements * maintenance-free longer applicable period, lower cost * fluorescent cap replacement is simple * supports rs-485, modbus protocol Technical instructions Do range: -20mg/l 0-20 mg/l or 0-200% saturation Reaction time: 10 sec Degree of protection: ip68 Do accuracy±1% Sensor drift:
Submersible galvanic dissolved oxygen sensors Item no.: do6400/h, do6400/t, do6400tc/h, do6400tc/t, do6441/t, do6442/t, Do7400/h, do7400/t, do7400tc/h, do7400tc/t, do7441/t, do7442/t Large solution capacity for long term deployment Models with and without temperature sensor Easy installation and maintenance Mv or 4-20ma output models available The do6400 & 7400 series dissolved oxygen sensors feature a large capacity electrolyte holder, positive fit, easy to replace membrane and dependable galvanic cell technology for long term deployment. The body design ensures a good grip when wet. Ideal for aquaculture and wastewater monitoring applications, these sensors require minimal maintenance. Ptfe or high-density polyethylene (hdpe) membranes are available. 2 replacement membranes, installation tool and electrolyte are included. Additonal maintennace parts are in convenient kits (see ordering information). Sensors with mv output as well as built-in 4-20ma output in 0-100% and 0-200% saturation range are available. Dissolved oxygen sensors specifications O2 measuring range: Do6400, do6400tc (0.5-20ppm), do6441(0-100%), do6442(0-200%) Do7400, do7400tc (0.03-20ppm), do7441(0-100%), do7442(0-200%) Body: material noryl Cathode: silver Anode: zinc (do6400 series), lead (do7400 series) Maximum temperature: 50 degrees c Power requirement: 12-36v dc (for models do6441, do6442, do7441 and do7442 only )
Wq-fdo optical dissolved oxygen sensor description The wq-fdo optical dissolved oxygen transmitter is an instrument designed for measuring dissolved oxygen concentrations in liquids. The wq-fdo optical dissolved oxygen transmitters were developed to meet different requirements ranging from surface water monitoring programs to harsh waste water applications. The optical dissolved oxygen transmitter has been specifically designed to meet the demanding requirements of the environmental monitoring and scientific research sectors, providing long term, accurate and reliable dissolved oxygen measurement. The wq-fdo optical dissolved oxygen transmitter has extremely low power requirements and a 4-20 ma output making it ideal for incorporation into remote environmental monitoring installations. Wq-fdo optical dissolved oxygen sensor features * extremely fast and precise optical do sensor - outstanding for field and lab applications * proven green light technology for long operation life of sensor * beveled membrane repells interference that can be caused by air bubbles * universal protective armoring available * low power consumption and low maintenance * simple to integrate and operate * one year sensor life Wq-fdo optical dissolved oxygen sensor applications Long and short term monitoring for streams, rivers, lakes, aquaculture, thermocline profiling, industrial outfalls, wastewater, scientific research, homeland security, the food and wine industry, and more. Wq-fdo optical dissolved oxygen sensor specifications * dissolved oxygen accuracy: +/- 0.5 % of value * dissolved oxygen repeatability: 0.01 ppm, * temperature, accuracy: +/-0.2'f (+/-0.1'c), * temperature, resolution:, 0.02'f (0.01'c), * temperature, range: 32 to 122'f (0 to 50'c, * max pressure: 35 psi (25m/82ft water depth), * operating voltage: 10-30 vdc, * warm up time: 6 sec. Min, 8 recommended,
Y504-A Dissolved Oxygen Sensor Description The sensor is based on optical fluorescence lifetime quenching technique. Its technical procedure meets ASTM D888-09 standard for optical sensing of dissolved oxygen. This online sensor is developed to integrate with Yosemite wireless monitoring system. Its rugged design and large measurement range make it ideal for sampling, flow cell, ground water and waste water measurements. Y504-A Dissolved Oxygen Sensor Applications Fish farmer, waste water plant, river, stream, and ocean monitoring Y504-A Dissolved Oxygen Sensor Feature * 0-20mg/L or 0-200% Saturation * 0~50 'C; IP68 rating * Membraneless, no electrodes design * No oxygen consumption * Flow Independent * Automatic temperature compensation * No H2S Interference * Low Drift, fast response, and more accurate * Low Maintenance, low operating cost * Easy sensor cap replacement * RS-485; MODBUS protocol compatible Y504-A Dissolved Oxygen Sensor Technical Specifications * Range: 0-20mg/L or 0-200% Saturation * Response Time: 10 sec * Housing IP Rating: IP68 * Accuracy: 1% * Drift: -
GS Yuasa Dissolved Oxygen sensor KDS-25B Features: * Long life * Virtually no in�uence from CO2 * No external power supply required for sensor operation * No warmup time is required Applications: * Water quality control The GS Yuasa Dissolved Oxygen Sensor KDS-25B is a unique galvanic cell type sensor which was developed for water quality control. Its most notable features are long life expectancy and it is not influenced by CO2. Specification: Measurement range: 0~80mg/L dissolved oxygen Accuracy in water at 25'C±1'C: ±5% (full scale) Operating conditions Atmospheric pressure: 81~203kPa (corresponds to 10m of water depth) Temperature: 5~35'C Relative humidity: 10 ~ 90%R.H. (no condensation) Thermal time constant: 10 min. or less Initial output voltage in clean air under standard test conditions: 8.0~15.0mV Standard test conditions Atmospheric pressure: 1013±5hPa Temperature: 25'C±1'C Relative humidity: 60±5%
Paraformaldehyde is a polymer of formaldehyde with the chemical formula (CH2O)n, where n is typically in the range of 8 to 100. It is a white, crystalline solid composed of small, polymeric formaldehyde units. Paraformaldehyde is commonly used as a solid form of formaldehyde, and it has various applications in different fields. Form and Structure: Paraformaldehyde is a low-molecular-weight polymer of formaldehyde, consisting of repeating CH2O units. It is often produced in the form of white, crystalline granules or as a powder. Uses: Fixative in Histology: Paraformaldehyde is commonly used in histology and pathology laboratories as a fixative for preserving biological specimens for microscopic analysis. Disinfectant: It has disinfectant properties and can be used for sterilizing equipment. Crosslinking Agent: Paraformaldehyde is used in the crosslinking of proteins, peptides, and nucleic acids in molecular biology applications. Chemical Synthesis: It serves as a source of formaldehyde in various chemical reactions and syntheses. Handling and Safety: Paraformaldehyde should be handled with care, and precautions should be taken to avoid inhalation, skin contact, or ingestion. When paraformaldehyde is heated, it releases formaldehyde gas, which is a strong irritant. Adequate ventilation and protective equipment should be used when working with paraformaldehyde. Dissolution: To use paraformaldehyde as a fixative or in other applications, it is typically dissolved in water to generate a formaldehyde solution. Storage: Paraformaldehyde should be stored in a cool, dry place away from heat sources and incompatible materials.
Fluorescence Method Dissolved Oxygen Analyzer is based on the principle of fluorescence quenching, blue light irradiates to the fluorescent material to make the fluorescent material excitate red light, because the oxygen molecules can take away the energy (quenching reaction), the time and intensity of red light and the concentration of oxygen molecules are inversely proportional. By measuring, the phase difference is excitated between the red light and the reference light, then to calculate the concentration of oxygen molecules by corresponding to the internal calibration value. By adopting innovative new fluorescent technology, no membrane and electrolyte is needed, almost no maintenance, excellent performance, easy to operate, no oxygen consumed, can be applied to any occasion, including those low water cycle.
Advantage product with competitive price and stable supply ability 1.Product description Name: Glutaraldehyde 50% CAS NO. 111-30-8 Appearance: colorless or yellowish clear and bright liquid 2.characteristics and applications Glutaraldehyde is colorless or yellowish clear and bright liquid with slight irritating smell, and can be dissolved in organic dissolvent such as water, ether and ethanol. In water solution, Glutaraldehyde doesn't exist much in free state; instead, Glutaraldehyde makes appearance as hydrates with different forms.and most of them are hydrates with annular structure. Glutaraldehyde is reactive in property, and liable to polymerize and oxidize, which will react with compounds containing active oxygen and nitrogen. The reaction of the product with protein is mainly carried out between the carbonyl group of the former and the amino group of the latter. Among the known aldehydes, the product is one of the best cross-linking agents for proteins. Glutaraldehyde has a small influence on the activity of enzyme, and most of enzymes can be fixed under controlled condition, to cross-link without losing their activity. Contrbuting to its outstanding characteristics, the product has drawn special concern from people and been put at broad application.
Agricultural urea N46 46% Properties of urea Urea, also known as carbamide, carbamide and urea. Pure urea is white, tasteless, odorless, needle shaped or prismatic crystal, with a melting point of 132.7 â?? under normal pressure. It is hygroscopic, deliquescent, hydrolyzable, and weakly alkaline. It is made into compound fertilizer with acid fertilizer. Urea is an organic compound composed of carbon, nitrogen, oxygen and hydrogen. It is a white crystal. Urea is one of the simplest organic compounds. The most important use of urea is as fertilizer. Its nitrogen content is more than 46%. After being converted into ammonium carbonate in soil, urea is hydrolyzed and absorbed by plants. It is the nitrogen fertilizer with the highest nitrogen content at present. Molecular formula of urea: CO (NH2) 2, molecular weight 60.06, density 1.335g/cm �³ï¼? The melting point is 132.7 â??. Soluble in water and alcohol, insoluble in ether and chloroform. It is slightly alkaline. It can react with acid to form salt. It has hydrolysis. Condensation reaction can be carried out at high temperature to produce biuret, triuret and cyanuric acid. Heat to 160 â?? and decompose to generate ammonia gas and turn into cyanic acid at the same time. Urea can be hydrolyzed into ammonia and carbon dioxide under the action of acid, alkali and enzyme (acid and alkali need to be heated). Unstable to heat, heat to 150 â??ï½? 160 â?? to deamination to biuret. Urea is easily soluble in water, 105g can be dissolved in 100ml water at 20 â??, and the aqueous solution shows neutral reaction. There are two kinds of urea products: crystalline urea is white acicular or prismatic crystal with strong hygroscopicity; Granular urea is a translucent particle with a particle size of 1~2mm, which has a smooth appearance and improved moisture absorption. Urea is a physiologically neutral fertilizer, which does not leave any harmful substances in the soil and has no adverse effects after long-term application. However, a small amount of biuret, also known as biuret, will be produced when the temperature is too high during granulation, which has an inhibitory effect on crops. Urea is molecular before conversion and cannot be adsorbed by soil, so it should be prevented from being lost with water; The ammonia formed after conversion is also volatile, so urea should also be deeply covered with soil. Urea is the first synthetic organic substance and widely exists in nature, such as 0.4% urea in fresh human feces. The new version of national standard GB/T2440-2017 for urea has been officially implemented since July 1, 2018. Compared with the replaced 2001 standard, certain adjustments have been made. New standard GB/T2440-2017
Formalin is a solution of formaldehyde gas dissolved in water. Formaldehyde is a colorless, strong-smelling gas that is commonly used in a liquid form, as formalin, for various industrial applications. Here are some key points about formalin: Chemical Composition: Formalin is typically a 37% aqueous (water-based) solution of formaldehyde. The remaining percentage is water. Uses: Preservation: Formalin is widely used as a preservative for biological specimens. It helps to prevent decay and decomposition, making it essential in laboratories, museums, and medical facilities for preserving tissues and specimens. Disinfectant: It has antimicrobial properties, and as such, formalin solutions are sometimes used as disinfectants and biocides. Textile Industry: Formalin can be used in the textile industry for wrinkle-resistant finishes on fabrics. Health and Safety Concerns: Formalin is a strong irritant and can be harmful if inhaled, ingested, or comes into contact with the skin. Prolonged or repeated exposure to formaldehyde can cause respiratory irritation and may be associated with certain health risks. Proper ventilation and personal protective equipment are recommended when working with formalin. Regulation: Due to its potential health risks, the use and handling of formalin are subject to regulations and guidelines in many countries. These regulations aim to ensure safe practices and protect workers and the environment.
Ammonium sulfate is a common inorganic salt. It contains two ammonium ions and one sulfate ion. This salt is widely used in various applications, including agriculture, industrial processes, and laboratory settings. Here are some key points about ammonium sulfate: Nitrogen and Sulfur Content: Ammonium sulfate is a good source of both nitrogen and sulfur. The nitrogen is in the ammonium form, making it readily available for plants. Solubility: Ammonium sulfate is highly soluble in water, allowing it to be easily dissolved for use in liquid fertilizers or irrigation systems. Fertilizer Use: It is commonly used as a nitrogen and sulfur fertilizer in agriculture to provide essential nutrients for plant growth. The nitrogen in ammonium sulfate is gradually released, providing a sustained nutrient supply to plants. Acidity: Ammonium sulfate is acidic in nature, and its application can contribute to lowering the pH of the soil. This can be beneficial in alkaline soils or for crops that prefer slightly acidic conditions. Soil Amendment: In addition to providing nutrients, ammonium sulfate can also serve as a soil amendment for improving certain soil characteristics. Industrial Applications: Ammonium sulfate is used in various industrial processes, including the production of textiles, dyes, and flame retardants. It is also employed in certain chemical reactions and as a precipitant in laboratories. Yeast Nutrient: In the brewing industry, ammonium sulfate is sometimes used as a yeast nutrient in the fermentation process. Compatibility: Ammonium sulfate is generally compatible with other fertilizers, and it can be used in combination with them to provide a balanced nutrient profile. Safety Considerations: When handling ammonium sulfate, it's important to follow safety guidelines and use appropriate protective equipment to prevent skin or eye contact and inhalation. Storage: Ammonium sulfate should be stored in a cool, dry place to prevent moisture absorption.
Sodium percarbonate is a white, crystalline compound commonly used as an environmentally friendly oxygen bleach and cleaning agent. It releases hydrogen peroxide when dissolved in water, making it an effective stain remover, disinfectant, and laundry booster. Sodium percarbonate is particularly popular in green cleaning products and is used in applications ranging from laundry and dishwasher detergents to deck and patio cleaners. It is valued for its ability to break down stains and organic matter, making it a versatile and eco-friendly choice for various cleaning and disinfecting tasks, with the added benefit of environmentally safe byproducts.
