DOG-209 Intelligent On-line Dissolved Oxygen Meter is one of the intelligent on-line

chemical analyzers developed by out company. With strong environmental adaptability,

clear display, easy operation and excellent measuring performance, the DOG-209

dissolved oxygen meter has very high performance-price ratio. It can measure out

the accurate DO value and temperature of a solution. It can be widely used in such

fields as thermal power plants, chemical industry, chemical fertilizer, metallurgy,

environmental protection, pharmacy manufacturing, biochemistry, foodstuff and

running water.

Intelligent: DOG-209 Intelligent On-line DO Meter adopts high-precision AD

conversion and single chip microcomputer processing technologies and can be

used for measurement of the DO value and temperature, automatic temperature

compensation and self-checking.

Multi-parameter display: The DO value and temperature values can be displayed

on the screen at the same time. It adopts LED display module with high brightness.

The main display shows the DO value in red color and in a 10 x 10mm size. As the

main display is eye-catching, the displayed values can be seen from a long distance

away.

Communication interface: It can be easily connected to a computer to perform

onitoring and communication.

1.Measuring range: 0~100.0 ug/L; 0~20.00 mg/L(automatic switching); 0~60°C

Resolution: 0.1 ug/L; 0.01 mg/L; 0.1°C
2. Intrinsic error of the whole instrument: ug/L: ±l.0%FS; mg/L: ±0.5%FS, temperature: ±0.5°C
3. Repeatability of the indication of the whole instrument: ±0.5%FS
4. Stability of the indication of the whole instrument: ±1.0%FS
5.Automatic temperature compensation range: 0~60°C, with 25°C as the reference

temperature
6. Response time: <60s (98% and 25°C of the final value) 37°C 
98% of the final value < 20 s
7. Output current error: ≤±1.0%FS
8. Isolated output:: 4~20 mA(load resistance <750Ω)
9. Communication interface: RS485 or 232(optional)
10. Saving time of data under a continuous power-failure condition: 10 years
11. Alarm relay : AC220V, 3A
12. Power supply: 220V±1.0% 50±1 HZ
13. Overall dimension: 146 (length) x 146 (width) x 108 (depth) mm;

dimension of the hole: 138 x 138mm
14. Weight: 1.0kg(secondary meter)
15. Working conditions: ambient temperature: 0-60°C; relative humidity <85%
16. The connection tubes for inlet and outlet water: Pipes and hoses should be of

the following three sizes: Φ8,Φ10 and Φl2.