Industrial on-line dissolved oxygen meter is a water quality on-line monitoring and control instrument with microprocessor. The instrument is equipped with p olarogra p h ic dissolved oxygen electrode, which is widely used in power plants, petrochemical industry, metallurgical electronics, mining industry, paper industry, b iological fermentation, medicine, food and beverage,water treatment, aquaculture and other industries. It continuously monitor and control the dissolved oxygen value and temperature value of water solutions.

Technical parameters:

( 1 ) Measurement range:

Dissolved Oxygen: 0 ~ 2 0 .0mg/L :0 ~ 100%;

Temperature:-5 ~ 15 0.0℃

(2) Resolution:

Temperature: 0.1℃ ;

Dissolved Oxygen: 0.01mg/L ;0.1%;

( 3 ) Basic error:

Dissolved Oxygen: ± 1% F . S ;

Temperature: ±0. 3 ℃ ;

( 4 ) Electrode residual signa l:< 1‰ ;

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

At 25℃ < 60S ; 35℃ < 30S ;

( 6 ) Stability:

At constant pressure & temperature, the weekly drift < 2%F . S ;

( 7 ) Two Current output:

0 /4 ~ 2 0mA( load resistance < 750Ω ) ;

20 ~ 4 mA( load resistance < 750Ω) ;

(8) Communication output :

RS485 MODBUS RTU;

( 9 ) Two sets of relay control contacts :

3 A 2 5 0VAC ,3 A 30 VDC ;

( 1 0 ) Power supply(selection):

8-265 VAC±10% , 50±1Hz ,power consumption ≤3W ;

9 ~ 36 VDC ,power consumption ≤ 3 W ;

( 1 1 ) Dimensions: 9 8 ×9 8 ×130mm ;

( 1 2)Installation: Panel or wall mount ing;

Panel opening size : 9 3 ×9 3 mm ;

( 13 ) Protection Grade:IP65;

( 1 4 ) Weight: 0. 6 kg ;

( 1 5 ) Working environment:

Operating temperature : -10 ~ 60℃ ;

Relative humidity: ≤90%;

N o strong magnetic field interference around except the geomagnetic field .