Industrial online dissolved oxygen analyzer 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 various industries such as power plants, petrochemicals, metallurgical electronics, mining, paper industry, biological fermentation, pharmaceuticals, food and beverage, environmental water treatment, aquaculture, etc; Continuously monitor and control the dissolved oxygen and temperature values of aqueous solutions.

Instrument features

● LCD segmented LCD screen display

● Intelligent menu operation

● Multiple automatic calibration functions

● Multiple signal output methods

● Two sets of relay control switches

● Manual or automatic temperature compensation

● High limit, low limit, hysteresis control

The same interface displays dissolved oxygen, temperature, etc

● Password protection is provided to prevent non staff personnel from operating incorrectly

Technical Parameter

(1) Measurement range:

Dissolved oxygen: 0-20.0mg/L; 0～100%；

Temperature: 0-150.0 ℃;

(2) Resolution:

Dissolved oxygen: 0.01mg/L; 0.1%；

Temperature: 0.1 ℃;

(3) Basic error:

Dissolved oxygen: ± 1% F.S;

Temperature: ± 0.3 ℃;

(4) Electrode residual signal: ＜ 1‰；

(5) Response time (final value 90%):

＜ 60 seconds at 25 ℃; ＜ 30s at 35 ℃;

(6) Stability:

Under normal pressure and constant temperature, drift<2% F.S per week;

(7) 1-channel current output:

0/4-20mA (load resistance<750 Ω);

20-4mA (load resistance<750 Ω);

(8) Communication output: RS485 MODBUS RTU；

(9) Two sets of relay control contacts:

3A 250VAC，3A 30VDC；

(10) Power supply (optional):

85-265VAC ± 10%, 50 ± 1Hz, power ≤ 3W;

9-36VDC, power: ≤ 3W；

(11) Dimensions: 98 × 98 × 130mm;

(12) Installation methods: panel type, wall mounted type;

Panel opening size: 93 × 93mm;

(13) Protection level: IP65；

(14) Weight: 0.6kg;

(15) Work environment:

Environmental temperature:- 10～60℃；

Relative humidity: not exceeding 90%;

There is no strong magnetic field interference around except for the Earth's magnetic field.