Overview
The YOKE P903 Keypad Operation Benchtop dissolved oxygen meter is a Benchtop instrument with a 6.5-inch LED display for the measurement of dissolved oxygen (DO), dissolved oxygen Saturation (DO%) and temperature (℃). The instrument is designed to comply with international GLP specifications, with a variety of intelligent functions such as Data storage, USB output, wireless printing, and a new polarographic dissolved oxygen Electrode, which supports automatic temperature, salinity and air pressure compensation.
Features
1. Adopting a 6.5-inch LED screen, the parameter display is complete and intuitive, and the interface operation is user-friendly.
2. Adopt Omron long life touch button, high durability.
3. Meet international GLP requirements, with automatic calibration, automatic temperature compensation, data storage, USB output, clock display, wireless printing, function settings and self-diagnostic information and other intelligent functions.
4. Built-in mass storage can store 1000 sets of measurement data, data can be transferred through U disk, and can be opened and edited by Excel software.
5. Measurement mode of dissolved oxygen has automatic temperature compensation, automatic salinity compensation and automatic air pressure compensation functions.
6. Optional Bluetooth module, support wireless Bluetooth printing.
7. Using new polarographic dissolved oxygen Electrode, Measuring temperature, salinity and dissolved oxygen at the same time, with a special calibrating sleeve, Electrode polarization only takes 3 to 5 minutes.
8. Use the combined diaphragm cap to replace the sensitive membrane conveniently and quickly.
9. Comply with IP54 dust and splash-proof design.
Principle
The instrument uses the principle of Polarography (Clark Electrode) to measure dissolved oxygen. Its core component is a polarographic dissolved oxygen Electrode. When the Electrode works, oxygen molecules diffuse through the diaphragm to the cathode to undergo a reduction reaction, generating a current signal proportional to the oxygen concentration. The instrument has a built-in temperature sensor and supports manual input of salinity and air pressure parameters. Measured values are corrected to dissolved oxygen concentration and Saturation under standard conditions through an automatic compensation algorithm.
Applications
Water quality monitoring, environment monitoring, aquaculture, sewage treatment, scientific research and education, industrial production process control
Standards
Compliant with international GLP standards
Steps
1. Connect the Power Adapter and turn it on.
2. Connect the Dissolved Oxygen Electrode to the instrument host.
Electrode into a special calibrating sleeve for polarization (about 3-5 minutes) and calibrating.
4. After calibrating, immerse the Electrode in the sample to be tested.
5. Wait for the reading to stabilize (Response Time ≤ 30 seconds), and the instrument will display and automatically compensate for the DO, DO%, and temperature values.
6. Press the storage key to save the data, or export the data through the USB interface. Optional Bluetooth module for wireless printing.
Notice
• Do not use the instrument beyond the specified Operating Conditions (Temperature 5-40 ° C, Humidity 5-85%).
• Use the specified 12V1A Power Adapter.
• Electrode's diaphragm cap is a consumable and needs to be checked and replaced regularly. Please use the original combined diaphragm cap when replacing.
• Before making accurate measurements, make sure the Electrode is fully polarized (3-5 minutes) and calibrated.
• Although the instrument meets the IP54 dust and splash protection rating, it is still necessary to avoid immersion in water or prolonged exposure to extremely humid environments.
When storing and transferring data, ensure that the USB flash drive format is compatible.
• When performing salinity and air pressure compensation, it is necessary to manually enter accurate parameter values.
• Do not disassemble the instrument or Electrode by yourself. If there is any failure, please contact a professional.
