Applications：

The industrial online dissolved oxygen meter is a water

quality online monitoring and control instrument with

a microprocessor. The instrument is equipped with a

polarographic dissolved oxygen electrode, which is

widely used in power plants, metallurgical electronics,

mining industry, paper industry, biological fermentation,

medicine, food and beverage, water treatment,

aquaculture, and other industries. It continuously

monitors and controls the dissolved oxygen and

temperature value of water solutions.

Feature：

 ● LCD display

●Intelligent menu operation

●Data Recording & Curve Display

●Various automatic calibration functions

●Manual or automatic temperature compensation

●Three sets of relay control switches

●High alarm & low alarm,hysteresis control

●4-20mA&RS485Multiple output modes

●Dissolved oxygen, temp, etc.simultaneouslyshowed on the same screen

●Password protection function to prevent misoperationby non-staff

Technical parameters:

Measurement range:DO:0～200μg/L～20.0mg/L；Temp:-10～150.0℃；

Resolution:DO：0.1μg/L；0.01mg/L；

Temp:：0.1℃；

Basic error: DO：±1%F.S；

Temp: ±0.3℃；

Electrode residual signal：＜1‰；

Response time（final value 90%）：

25℃＜60S；35℃＜30S；

Tability： At constant pressure，

Weekly drift＜2%F.S；

Two current outputs：0/4 ~ 20 mA (load resistance<750 Ω);；20～4mA(load resistance＜750Ω)；

Communication output: RS485 MODBUS RTU；

Three groups of relay control contacts:5A 250VAC，5A 30VDC；

Power supply：85～265VAC±10%,50±1Hz，

Power :≤3W；9～36VDC，

Power : ≤3W；

Overall dimension:144×144×118mm；

Installation mode: panel, wall hanging, pipe type;

Panel opening size：138×138mm；

Waterproof grade： IP65；

Instrument weight： 0.8kg；

Instrument working environment：

Environment temperature ：-10～60℃；

Relative humidity：≦90%；

In addition to the earth's magnetic field aroundno strong magnetic interference