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Water Treatment Process Instruments
Online Dissolved Oxygen Analyzer
product details

Product Overview


The online dissolved oxygen analyzer is a ppm level dissolved oxygen analyzer that can be widely used for continuous monitoring in solutions such as chemical fertilizers, metallurgy, pharmaceuticals, biochemistry, water treatment and sewage treatment, beverages, and tap water.


Technical Indicators


Display: dissolved oxygen, current, temperature, time, and measurement status are displayed on the same screen.
Measurement range: 0-20mg/L; 0 ℃~80 ℃.
Resolution: 0.01mg/L; 0.1 ℃.
Temperature compensation: based on 25 ℃; Manual temperature range from 0 ℃ to 80 ℃; Automatic temperature range from 0 ℃ to 80 ℃.
Precision: mg/L ± 0.5% FS; ± 0.3 ℃.
Data storage: 5 minutes, 30 days.
Data power-off storage: >10 years.
Current isolation output: three photoelectric isolation current outputs can be optionally equipped, with software settings of 0-10 mA (load<1.5 k Ω) or 4-20 mA (load<750 Ω).
Communication interface: photoelectric isolation RS485, optional RS232, Ethernet communication or wireless communication
Power input: 100V~265V AC, 50 ± 1Hz, optional DC24V to DC15V can work normally.
Protection level: IP65.
Opening size: 136x136mm.
Weight: 0.8kg. Installation method: wall mounted or rack mounted.
Isolation current output: 4mA~20mA (load<750 Ω); 0mA~10mA (load<1.5k Ω).
External dimensions: 146mm x 144mm x 180mm.


Main Features


· Electromagnetic compatibility (EMC/RFI) design;

· Automatic cleaning: The electrode cleaning time can be set by the user interface,

· Strictly follow the European standard EN50081/50082 for design and manufacturing;

· Protection level: IP65 (NEMA4X)

· Waterproof and dustproof design, suitable for outdoor use. There are three installation methods: perforated frame, pipeline, and wall hanging

· Easy installation and convenient wiring;

· Simulated communication function: Three mutually isolated current outputs, capable of outputting pH, current and other data, providing customization; The output upper and lower limits of current corresponding to pH and temperature values can be set arbitrarily;

· Data communication function: RS485 communication or RS232 interface, can be customized for Ethernet communication or wireless communication;

· Password management: both calibration and parameter settings are password protected;

· Built in real-time clock: provides a time benchmark for various functions;

· Can be equipped with two types of electrodes: balanced and polarographic

· Uniform background light: can be clearly observed and operated even in dim outdoor conditions.