Troubleshooting
Primary Test: It should read approximately 100% on the Saturation channel when in air-saturated water or water-saturated air.
Battery Troubleshooting
If the sensor can be turned on when connected by USB but not when disconnected from USB, it is likely that the battery just needs to be charged. In this case, charge the sensor for several hours and try again. If, however, the sensor won’t turn on regardless of whether the USB cable is connected or not, and you are confident that the USB cable is good by having tested it on another sensor, then the battery has likely reached its end of life and can no longer hold a charge. In this state, the sensor cannot be used even if connected by USB, so the battery will need to be replaced. The rechargeable battery in this sensor is covered by a one year warranty but should last two to five years in typical use. Note that if the battery is less than one year old and the sensor cannot be turned on even when connected by a working USB cable, another possibility is that the USB port is bad. In this case, contact Vernier technical support for assistance.Â
- Go Direct® 650 mAh Replacement Battery (GDX-BAT-650)
- How do I replace the battery in a Go Direct Wand-Type Sensor?
Additional Troubleshooting
- What software do I need to use a dissolved oxygen probe?
- Can the Optical DO Probe measure oxygen gas?
- What are the dimensions of the Go Direct Optical Dissolved Oxygen Probe?
- Can I perform a two-point calibration for Go Direct Optical Dissolved Oxygen Probe?
- How do I compensate for salinity when measuring dissolved oxygen?
- Can I use the Optical DO Probe with other water quality sensors?
- Can I use Vernier water quality sensors in salt water or in a salt water aquarium?
- Can the optical DO probes be substituted for experiments using the Dissolved Oxygen Probe?
- How do I replace a cap on the Go Direct Optical Dissolved Oxygen probe?
- What are the dimensions of the Go Direct Optical Dissolved Oxygen Probe?
Maintenance and Storage
Accessories
- Optical DO Probe Metal Guard (ODO-GRD)
- Go Direct® Sensor Clamp (GDX-CLAMP)
Replacement Parts
- Go Direct® Optical Dissolved Oxygen Replacement Cap (GDX-ODO-CAP)
- Electrode Storage Bottles (BTL-ES)