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Anonymous users2024-02-06In the case of 4 mg l, the units are converted first.
4mg oxygen, the molar mass of oxygen is 32g mol, calculate the molar number of 1l water, the density of water is 1g ml, the molar mass is 18g mol, calculate the molar number 4mg l to convert molar percentage.
According to Henry's law, take the Henry constant of 30 as an example.
Partial pressure of oxygen p =""kpa
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Anonymous users2024-02-05How to set the dissolved oxygen on-site measurement, corresponding to 4-20mA?
The dissolved oxygen field measurement is converted into 4-20mA current transmission mu, and it is pointed out that the full-scale calibration method can be used, and the specific operation steps are as follows: 1. First, the current output of the measuring instrument is connected to the calibrator, and the current output of the measuring instrument is set to 4mA; 2. Adjust the set value of the calibrator to; 3. Adjust the current output of the measuring instrument to 20mA, and then adjust the setting value of the calibrator to; 4. Release the current output of the measuring instrument, so that the full-scale calibration is completed, which is used to convert the dissolved oxygen field measurement into 4-20mA current output.
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Anonymous users2024-02-04Summary. Hello, it is a pleasure to serve you and give you the following answer: according to the output range of 4-20mA, the field measurement of dissolved oxygen can be set to:
The specific setting steps are as follows: 1. Set the output range of the dissolved oxygen field measuring instrument to 4-20mA; 2. The output value of 4-20mA corresponding to the calculated field measurement of dissolved oxygen, i.e.; 3. Set the output value of the dissolved oxygen field measuring instrument to; 4. Check whether the settings are correct, if so, the settings are complete.
How to set the dissolved oxygen on-site measurement, corresponding to 4-20mA?
Hello, it is a pleasure to serve you and give you the following answer: according to the output range of 4-20mA, the field measurement of dissolved oxygen can be set to: The steps are as follows:
1. Set the output range of the dissolved oxygen field measuring instrument to 4-20mA; 2. The output value of 4-20mA corresponding to the calculated field measurement of dissolved oxygen, namely; 3. Set the output potato dust value of the dissolved oxygen field measuring instrument to the caution value; 4. Check whether the setting is correct, if the positive number is correct, the setting is complete.
I'm sorry I don't understand, but can you elaborate on that?
Hello, it is a pleasure to serve you and give you the following answer: according to the output range of 4-20mA, the field measurement of dissolved oxygen can be set to: The steps are as follows:
1. Set the output range of the dissolved oxygen field measuring instrument to 4-20mA; 2. The output value of 4-20mA corresponding to the calculated field measurement of dissolved oxygen, namely; 3. Set the output potato dust value of the dissolved oxygen field measuring instrument to the caution value; 4. Check whether the setting is correct, if the positive number is correct, the setting is complete.
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Anonymous users2024-02-03How to set the dissolved oxygen on-site measurement, corresponding to 4-20mA?
Hello dear, we are happy to answer for you and find the following solutions for you: Corresponding to 4-20mA settings can be used with a fixed range or an adaptive range. When using a fixed range, according to the guess range of dissolved oxygen, the staring can be set to 20mA in units.
When using the self-emangelized adaptive range, it is necessary to convert the measurement range of dissolved oxygen to a current value in order to set a range of 4-20 mA.
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Anonymous users2024-02-02At kPa, there is approximately 9mg L of dissolved oxygen in pure water. Some organic compounds are biodegraded by aerophilic bacteria, which consumes dissolved oxygen in the water. You can learn about O2ARK's hyperbaric oxygen chamber, which can improve the concentration of dissolved oxygen in the body and improve resistance through oxygen inhalation.
You can get a unified understanding.
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Anonymous users2024-02-01What kind of water is your water?
What is the treatment structure?
Is it effluent from a sewage plant, natural or tap water?
Natural water is generally 10-30mg l
Effluent from sewage plant 2-10mg l
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Anonymous users2024-01-31It's too small upstairs to make a fuss.
To put it simply.
Solubility (1 l in water) about 30 ml of oxygen.
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