DOG-1902  is a precision instrument used for testing and control of dissolved oxygen. The instrument has all the

parameters for microcomputer storing, caluating and compensating of the related measured dissolved

oxygen values; DOG-1902 can set the relevant data, such as elevation and salinity. It is also featured by complete

functions, stable performance and simple operation. It is an ideal instrument in the field of the dissolved

oxygen test and control.

DOG-1902 adopts the backlit LCD display, with error indication. The instrument also owns the following features: automatic temperature compensation; isolated 4-20mA current output; the dual-relay control; high and

low points alarming instructions; power-down memory; no need back-up battery; data saved for more than a

decade.

1. Measuring range: 0.00~1 9.99mg / L Saturation: 0.0~199.9％

2. Resolution: 0. 01 mg／L    0.01％

3 Accuracy: ±1.5％F.S

4. Control range: 0.00~1 9.99mg／L  0.0~199.9％

5. Temperature compensation: 0~60℃

6. Output signal: 4-20mA isolated protection output, double current output available, RS485 (optional)

7. Output control mode: On/Off relay output contacts

8. Relay load: Maximum: AC 230V 5A

Maximum: AC l l5V 10A

9. Current output load: Allowable maximum load of 500Ω.

10. On-ground voltage insulation Degree: minimum load of DC 500V

11. Operating voltage: AC 220V l0%, 50/60Hz

12. Dimensions: 96 × 96 × 115mm 

13. Dimension of the hole: 92 × 92mm

14. Weight: 0.8 kg

15. Instrument working conditions:

① Ambient temperature: 5 - 35 ℃

② Air relative humidity: ≤ 80%

③ Except for the earth magnetic field, there is no interference of other strong magnetic field around.