New Do Meter

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Hangzhou Lohand Biological Technology Co.,Ltd

Zhejiang, China

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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.
The 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.

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)

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 an 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.
The protection grade is IP65, waterproof and dustproof.