DO-66 Written Test Dissolved Oxygen Tester

Product Description:
Overview:
The DO-66 portable dissolved oxygen analyser (hereinafter referred to as the instrument) is designed to be easily carried by users to the field for operation. The instrument can be divided into two parts: a sensor and an electronic unit. The sensor uses thin-film dissolved oxygen electrodes. The electronic unit is an integrated operational amplifier + microcomputer chip with automatic temperature compensation function.
> portable
The instrument is small and lightweight.
Comes with a suitcase for easy take-out and storage of instruments. The suitcase is made of engineering plastic PP, which is firm and durable.
> power is long-lasting
Two AAA batteries last longer, up to about 600 hours of continuous use.
This instrument is equipped with a low voltage prompt to make it more user-friendly. When the battery is about to run out, a prompt will appear on the screen to remind the user to pay attention to the battery and replace the battery in time.
> waterproof
Except for the battery compartment, the whole body is waterproof to better protect the internal circuit.
> automatic calibration
It is equipped with "0%" and "100%" two-point automatic calibration buttons, which is convenient for calibration.
> temperature compensation function
Automatically identify the corresponding value under the difference between the actual solution temperature and the standard temperature to ensure that the measurement results are more accurate.

Acidity meter is a common equipment,also known as PH meter, which is mainly used for precise measurement of pH value of liquid medium, and can also measure MV value of ion electrode potential with corresponding ion selective electrode. It is widely used in industry, agriculture, scientific research, environmental protection and other fields. If the electrode an be properly maintained in use, prepare the standard buffer solution as required and operate the electrometer correctly, which can remarkably reduce pH indication error, so as to improve the reliability of chemical experiment and test data.

Taking the acidity meter produced by Kelilong Electron Co.Ltd in Fujian,China as an example. It usually divided into four categories: industrial on-line acidity mete, table type acidity meter, portable acidity meter and pen type acidity meter.As shown in Figure 1.