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Home > Products > New product > Dissolved Oxygen Sensor - Dissolved oxygen sensors and dissolved oxygen recorder
Dissolved Oxygen Sensor - Dissolved oxygen sensors and dissolved oxygen recorder
Negotiable
/ Metric Ton
1 Metric Ton(Min. Order)
- T/T L/C D/P D/A
- 7 days
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Product Details
| Place of Origin | China | |
| Model Number | WQ401 |
Product Description
4-20 mA output
Marine grade cable with strain relief
Stainless steel housing
Replaceable DO element
Dissolved oxygen sensor is a rugged reliable water oxygen level measuring device. The dissolved oxygen sensors are attached to 25 'of marine grade cable, with lengths up to 500' available upon request. The dissolved oxygen sensor output is 4-20 mA with a three wire configuration. The dissolved oxygen sensor's electronics are completely encapsulated in marine grade epoxy within a stainless steel housing (online version has 1 "PVC x 8" pipe nipple, threaded both ends with cap). The dissolved oxygen sensor uses a removable shield and dissolved oxygen element for easy maintenance.
Why Measure DO?
Dissolved oxygen (DO) is the amount of oxygen (O2) dissolved in water. Dissolved oxygen measurements provide one of the best indicators of the health of a water ecosystem, as oxygen is a necessary element for all forms of life, including aquatic life. Oxygen enters water at the water surface through direct exchanges with the atmosphere. It is also produced as a byproduct of plant and phytoplankton photosynthesis. A decrease in dissolved oxygen levels is typically associated with an organic pollutant. Dissolved oxygen is used by plants and animals for respiration, and by aerobic bacteria in the process of decomposition. When organic matter (such as animal waste or improperly treated wastewater) enters a body of water, algae growth increases. As the plant material dies off and decomposes, dissolved oxygen levels decrease. If the water at the surface is not mixed with deeper water layers, the water's dissolved oxygen levels can become stratified. Dissolved oxygen levels can also vary according to the time of day, weather, and temperature. Dissolved oxygen in water can range from 0-18 parts per million (ppm), but most natural water systems require 5-6 ppm to support a diverse population. As dissolved oxygen levels drop below 5.0 mg / L, aquatic life is put under stress. As dissolved oxygen levels decrease, pollution-intolerant organisms are replaced by pollution-tolerant worms and fly larvae. If dissolved oxygen levels fall below 1-2 mg / L for a few hours, large fish kills can result.
Dissolved Oxygen Sensors Specifications
Output: 4-20 mA
Range: 0-100% Saturation, 0-8 ppm, temperature compensated to 77 ° F (25 ° C)
Accuracy: ± 0.5% of full scale
Maximum Pressure: 40 psi
Operating Voltage: 10-36 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)
Membrane: 0.001 FEP Teflon (standard)
Combined Error: 2% FS
Size of Probe:
Standard: 11 "L x 1-1/4" Diameter (27.9 cm L x 3.2 cm Dia.)
Online: 12 "L x 2" Diameter (30.5 cm L x 5 cm Dia.) (End cap)
Weight: Standard and Online 1 lb. (454 kg)
Contact Us
- Midwest Group
- Contact nameCherry Lin Chat Now
- Phone86-189-59410778
- AddressNo. 1 3rd Street Shangdi Haidian Disctrict Beijing China 100085
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