YANTAI STARK INSTRUMENT CO., LTD.

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 etc function.

High protection grade: It adopts waterproof and dust-proof design and is applicable for outdoor use. (With a

protection grade of IP65)

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 monitoring and communication.

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

Resolution: 0.1 ug/L; 0.01 mg/L; 0.1℃

2. Intrinsic error of the whole instrument: ug/L: ±l.0%F.S.; mg/L: ±0.5%F.S., temperature: ±0.5℃

3. Repeatability of the indication of the whole instrument: ±0.5%F.S.

4. Stability of the indication of the whole instrument: ±1.0%F.S.

5.Automatic temperature compensation range: 0～60℃, with 25℃ as the reference temperature

6. Response time: <60s (98% of the final value, 25℃)

< 20 s(37℃:98% of the final value)

7. Output current error: ≤±1.0%F.S.

8. Isolated output:: 4～20 mA(load resistance <750Ω)

9. Communication interface: RS485 (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,DC24V(optional)

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℃; relative humidity <85%

16. The connection tubes for inlet and outlet water: Pipes and hoses