Performance characteristics and application areas of dissolved oxygen meters
The online dissolved oxygen meter is a highly intelligent online continuous monitor. It can be equipped with polarographic electrodes to automatically realize a wide range of measurements from ppb level to ppm level. It is an instrument for detecting oxygen content in liquids in boiler feed water, condensate water, environmental sewage and other industries. It has the characteristics of fast response, stability, reliability and low usage cost, and is suitable for large-scale use in thermal power plants.
Performance features:
1. Full Chinese display, beautiful interface: all data, status and operation prompts are displayed in Chinese.
2. Simple menu structure, text-based human-machine dialogue: clearer and more convenient to use. You don't need a manual, just follow the on-screen prompts.
3. Simultaneous display of multiple parameters: simultaneously display oxygen concentration value, input current, output current, temperature, time and status on one screen.
4. Historical curve function: The secondary meter automatically stores the measured oxygen concentration value every five minutes, and can continuously store data for one month.
5. Notepad function: faithfully record the operation and usage of the instrument and the time of alarm occurrence for easy management.
6. Electrode research function: store the method, time and results of 50 calibrations to analyze the changing patterns of the electrode.
7. Digital clock function: displays the current time and provides a time base for the digital recording function.
8. Backlight function: It can be used in dimly lit or completely dark environments, and automatically adjusts the contrast according to temperature changes.
9. Industrial control watchdog: To ensure that the instrument will not crash, this is a basic requirement for online instruments.
10. Output current setting and checking function: Manual current source function can check and set the output current value arbitrarily, which is convenient for testing the recorder and slave computer.
11. Software sets the current output mode: the software selects 0~10mA or 4~20mA output without the user needing to flip any switch.
12. Four calibration methods: In addition to the traditional one-point and two-point calibration methods, there are also methods such as manual input of zero point and slope and calibration of known oxygen concentration values to meet use in various situations.
