This manual mainly describes the use of the CyberScan DO 300/310 waterproof handheld dissolved oxygen/temperature meter, including preparation, calibration, measurement, locking function, memory function, advanced setting function, probe maintenance and maintenance, troubleshooting guide, error information, specifications, accessories, Appendix 1: Dissolved oxygen and instrument principle, Appendix 2: Pressure and altitude relationship, Appendix 3: The instrument's factory settings, Appendix 4: Setting functions, warranty and return terms.
This manual describes the operation of the CyberScan DO 300/310 analyzer, including the primary and secondary LCD displays, measurement units (mg/l, ppm), and the various operating modes. It provides step‑by‑step instructions for powering the device, selecting measurement modes, and interpreting the displayed values.
The guide also covers maintenance tasks such as battery replacement (remove two screws to access the battery compartment) and calibration procedures. Error messages and troubleshooting tips are listed to help users resolve common issues during operation.
| Measurement units | mg/l, ppm |
|---|
Remove the two screws shown in the manual to open the battery compartment.
The device measures dissolved oxygen in milligrams per litre (mg/l) and parts per million (ppm).