DO-300M Benchtop Dissolved Oxygen Meter with Keypad Operation

按键式电化学仪器
按键式电化学仪器

按键式电化学仪器

Особенности и применение

  • Equipped with a 6.5-inch LED screen, it features comprehensive and intuitive parameter dis- play, along with a user-friendly interface for convenient operation.
  • Adopts Omron long-life tactile push-button switches, which are durable and capable of with- standing over 100,000 operations.
  • Complies with internationally regulated GLP requirements. It incorporates intelligent func- tions such as automatic calibration, automatic temperature compensation, data storage, USB output, clock display, wireless printing, function settings, and self-diagnostic information.
  • Built-in large-capacity memory can store up to 1000 sets of measurement data. Data can be transferred via a USB flash drive, and the stored data can be opened with common office software (Excel), greatly facilitating user editing.
  • The dissolved oxygen measurement mode is equipped with automatic temperature compen- sation, automatic salinity compensation, and automatic atmospheric pressure compensation. The instrument is optionally equipped with a Bluetooth module to support wireless Bluetooth printing for user convenience.
  • The newly designed polarographic dissolved oxygen electrode can simultaneously measure temperature, salinity, and dissolved oxygen. When used with a dedicated electrode calibra- tion kit, the electrode polarization takes only 3 to 5 minutes.
  • A combined diaphragm cap is used. When replacing the sensitive membrane, simply screw the new diaphragm cap onto the electrode, making the operation extremely convenient.
  • Designed with an IP54 dust and splash protection rating.

Технические характеристики

Model DO-300M
Display 6.5-inch LED screen
Displayed Parameters Concentration, Saturation, Temperature
Dissolved Oxygen Range (0~20.00) mg/L (ppm); (0~200.0) %
Dissolved Oxygen Resolution 0.1/0.01 mg/L (ppm); 1/0.1%
Dissolved Oxygen Accuracy Electrode: ±0.10 mg/L; Complete set: ±0.40 mg/L
Response Time ≤30 s (at 25°C, 90% response)
Residual Current ≤0.1 mg/L
Temperature Measurement Range (0~100) °C
Temperature Resolution 0.1°C
Temperature Relative Accuracy ±0.1°C
Temperature Compensation (0~100) °C (manual/auto)
Salinity Compensation (0~45) ppt (manual)
Atmospheric Pressure Compensation Range (0~200) kPa (manual)
Atmospheric Pressure Resolution 0.1 kPa
Atmospheric Pressure Accuracy ±2%
Stability (±0.07 mg/L)/1 h
Data Storage 2000 sets; unlimited storage via external USB drive
Communication Interface USB, micro USB, wireless Bluetooth (optional)
Operating Conditions Temperature: 5~40 °C; Humidity: 5~85% RH
Power Supply 12V 1A (110~220 V, 50Hz~60Hz adapter)
Product Dimensions & Weight (240 × 170 × 80) mm; 550 g

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Последнее обновление: 2026-03-25

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