Feature Wide-screen LCD display, with operation prompt function, easy to use. Using 32-bit microprocessor technology, it can measure dissolved oxygen concentration, saturation, electrode current and temperature, with automatic temperature compensation function. Adopt lithium battery power supply, with power management function of charging and power-off protection. Low power consumption design, automatically turn on and off the backlight by external light. The detection accuracy is high, and the instrument has built-in manual atmospheric pressure compensation and salinity compensation. Protection grade is IP65, waterproof and dustproof.
New do meter
New do meter
Technological Parameter
|
Measuring Range |
Dissolved Oxygen Concentration |
0.00-20.00mg\L |
|
Dissolved Oxygen Saturation |
0.0-200.0% |
|
|
Temperature |
0-60℃;32-140! |
|
|
Resolution |
Dissolved Oxygen Concentration |
0.01mg\L |
|
Dissolved Oxygen Saturation |
0.1% |
|
|
Temperature |
0.1℃;0.1! |
|
|
Accuracy |
Dissolved Oxygen Concentration |
≤±0.3mg\L |
|
Dissolved Oxygen Saturation |
≤±3.0% |
|
|
Temperature |
≤±0.3℃;≤±0.3! |
|
|
Atmospheric Pressure Compensation |
Manual compensation(60-110)KPa |
|
|
Temperature Compensation |
Automatic compensation(0-40℃;32-104! ) |
|
|
Salinity Compensation |
Manual compensation(0-50)g\L |
|
|
Standard Electrode |
SD02(3 M) |
|
|
Response Time |
≤45s |
|
|
Power Supply |
lithium battery |
|
|
Environmental Protection Level |
IP65 |
|
|
Dimensions |
165X75X51mm |
|
|
Weight |
270g(without sensor) |
|
New do meter
1. Testing standards and methods
Dissolved oxygen, the common detection methods of dissolved oxygen are, electrochemical method, fluorescence method and chemical reagent method (iodometric method).
The electrochemical method, that is, polarographic dissolved oxygen or membrane dissolved oxygen (HJ / 506-2009), is often used to detect natural water, surface water, and some sewage industries. Features, easy operation, easy to carry, low cost of use, and can realize online real-time detection function.
Fluorescence method, a method for measuring dissolved oxygen based on the principle of fluorescence quenching, is widely used. Features, easy operation, easy to carry, but high cost.
The iodometric method, which uses redox reactions to detect dissolved oxygen in water, is the standard method for measuring dissolved oxygen in water. The characteristic is that the cost is low, but the operation is complicated and the requirements are high. The online real-time detection function cannot be realized.
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