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:
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.
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.
Gelatin, E411, CAS no. 9000-70-8, Gelatin is hydrolyzate of collagen, animal beef and pork as raw materials. It is a natural nutritional food thickener. Characteristics: Gelatin can be dissolved in hot water to form a thermally reversible gel, which has extremely excellent physical properties, such as jelly force, affinity, highly dispersed, low viscosity characteristics, dispersion stability, water holding capacity, coating resistance, toughness, and reversibility. As a thickening agent, edible gelatin is widely added in the food industry, like jelly, food coloring, senior fudge, ice cream, cream cheese, yogurt and frozen food.
As an experienced Gelatin manufacturer and supplier, we has been supplying and exporting Gelatin for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day.
Gelatin food grade Specification
Gelatin
E No E441
Einecs No 232-554-6
CAS No. 9000-70-8
HS Code 3503001001
ITEM Specifications
Appearance Yellow or yellowish granular
Jelly strength (6.67%) 120 â?? 260 bloom (as per need)
Viscosity (6.67%) 30- 48
Moisture 16%
Ash 2.0%
Transparency (5%) 200- 400mm
pH (1%) 5.5- 7.0
So2 50ppm
Insoluble material 0.1%
Arsenic (as) 1ppm
HEAVY METAL (as PB) 50PPM
Total bacterial 1000cfu/ g
E.coli Negative in 10g
Salmonella Negative in 25g
Paticle size 5- 120 mesh (as per need
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
Product name: Medical Sodium Chloride
HS Code: 2501000050
Packing: 25 or 50 kg bags
Sodium chloride on a dry basis: 99-100.5%
Sulfate content SO4: less than 200 ppm
Magnesium and alkaline earth metals in the form of calcium (C4) less than 100 ppm
Aluminum content AL: less than 0.2 ppm
Iron content Fe: less than 2 ppm
Heavy metals (in the form of lead) Pb: less than 5 ppm
Bromide content Br: less than 100 ppm
Phosphate content PO4: less than 25 ppm
Potassium K: less than 500 ppm
Bacterial endotoxins: less than 5 international unite/gram (<5 EU/g)
Applications:
Medical salt (Bacteria-free)
The specifications of medical salt comply with European, British, American, Chinese, and Indian pharmaceutical standards.
It has the following uses:
- Intravenous injection doses
- Dialysis solutions
- Hemofiltration solutions
- Peritoneal dialysis solutions
It does not contain any additives
Physical properties:
White, granular sodium chloride that dissolves quickly in water
- Insoluble in ethyl alcohol
Free of toxins and internal bacteria
Product name: Sodium Chloride 100.5%
HS Code: 2501000050
Packing: 25 or 50 kg bags
Sodium chloride on a dry basis: 99-100.5% / pharmaceutical salt
Sulfate content SO4: less than 200 ppm
Magnesium and alkaline earth metals in the form of calcium (C4) less than 100 ppm
Aluminum content AL: less than 0.2 ppm
Iron content Fe: less than 2 ppm
Heavy metals (in the form of lead) Pb: less than 5 ppm
Bromide content Br: less than 100 ppm
Phosphate content PO4: less than 25 ppm
Potassium K: less than 500 ppm
Bacterial endotoxins: less than 5 international unite/gram (<5 EU/g)
Medical salt (Bacteria-free)
The specifications of medical salt comply with European, British, American, Chinese, and Indian pharmaceutical standards.
It has the following uses:
- Intravenous injection doses
- Dialysis solutions
- Hemofiltration solutions
- Peritoneal dialysis solutions
It does not contain any additives
Physical properties:
White, granular sodium chloride that dissolves quickly in water
- Insoluble in ethyl alcohol
Free of toxins and internal bacteria
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
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
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
We Specializes In Supply Medical equipment such as : Oxygen Concentractor 10L , Made in USA.
Features:
-User-preferred neutral color to help blend in to any home environment.
-Invacare SensO2 Oxygen Purity Sensor to warn you if purity drops.
-Compatible with the Invacare HomeFill Oxygen System.
-Battery-free power loss alarm for added peace of mind.
-Three separate filters assure oxygen purity.
Dimension:
26-3/8" (H) x 18-3/8" (W) x 14-3/8" (D).
Product Weight: 53 lb.
Shipping Product Weight: 63lb.
Oxygen: Oxygen Flow: 10 LPM
Oxygen Purity - 87%-95.6% At all flow rates.
Flow Settings: Flow Range: 2-10 LPM
MQO: 100 PCS
Certificate : CE, FDA, 510K
Made in USA
DRIED FISH MAW- SINGLE PCS
Specification:
Weight : 180-200 pcs/ kg
Packing: 25kgs/ bag
Fish maw is the dried form of fish air bladder. Fish maw can be divided into king fish maw, premium fish maw, grass seabass fish maw and fried fish maw in general. King fish maw and premium fish maw are the best quality and most valuable amongst the four types. Grass Seabass fish maw and fried fish maw are however more popular due to their economical pricing. Fish maw is also graded by their gender. Male fish bladder has thicker body and is soft and smooth, not easily dissolved in the mouth while female bladder has a thinner body
We are Specializes In supply medical equipment such as : Oxygen Concentrator 5L Made in USA Certificate: CE, FDA, 510K .
Specifications: Flow Rate: 1-5 LPM.
Oxygen Concentration: 90% (+5.5% / -3%).
Dimensions: 28.5" (H) x 15.7"(W) x 14.5" (D).
Weight: 54 lbs. Power: 120 V, 60 Hz.
Sound level: 48 dBA.
Storage Environment: -4 degrees to 140 degrees F, 15-95% Humidity.
Warranty: 1 Years standard.
MQO: 200 PCS .
Made in USA .
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
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 )
Sensors have an internal thermistor fully sealed for temperature monitoring. Sensors are housed in a polypropylene body for long-term use underground. Two head options include a diffusion head for field use and a flow-through head for laboratory use.
