Vernier Software and Technology
Vernier Software & Technology
Tech Info Library

Optical DO Probe Troubleshooting and FAQs

Vernier Optical DO Probe, order code ODO-BTA, $299
Specifications and User Guide

-Primary Test: Connect the Vernier Optical DO Probe to the data-collection interface. Start the data-collection software. Make sure you are using a current version of the software. The software will auto-ID the sensor.

-Secondary Test: Verify the sensor reads 100% in air-saturated water or water-saturated air.

-Note: The Optical DO Probe is not compatible with the Go!Link, order code GO-LINK, $69.


TIL 3222: What is the difference between a regular Dissolved Oxygen Probe and the Optical DO Probe? Which one should I buy?
TIL 2983: What are the dimensions of the Optical DO Probe?
TIL 1908: What sensors are not compatible with Go!Link?
TIL 3000: Can the Optical DO Probe measure oxygen gas?
TIL 3013: Are there any interfering gases when using the Optical DO Probe?
TIL 3386: Can I upgrade my Optical DO Probe?
TIL 3417: How do I know if my Optical DO Probe can measure 0-100% or 0-300%?
TIL 3715: How do I compensate for salinity when measuring dissolved oxygen?

TIL 2998: Can I perform a two-point calibration for the Optical DO Probe?
TIL 2999: How do I create a zero-oxygen calibration solution for the Optical DO Probe?
TIL 3059: Can DO values be corrected for salinity after the fact by applying salinity correction factors?
TIL 3345: How do I reset the calibration on the Optical DO Probe?
TIL 3554: Why is my Optical DO Probe reading a negative value?

TIL 2952: Can I use the Optical DO Probe with other water quality sensors?
TIL 1399: Can I use Vernier water quality sensors in salt water or in a salt water aquarium?
TIL 3036: How do I change units when using the Optical DO Probe?
TIL 3554: Why is my Optical DO Probe reading a negative value?

TIL 3002: Can the optical DO probes be substituted for experiments using the Dissolved Oxygen Probe?

TIL 2997: When does the Optical DO Probe cap need to be replaced?
TIL 3094: What do I do if my Optical DO storage cap is broken?
TIL 3064: What is the difference between the white storage bottle in the Optical DO Probe video and the clear bottle I received?
TIL 3390: How do I sterilize an Optical DO Probe?

-Order code: ODO-BTA
-Range: 0 to 20 mg/L
0 to 100 %
-Accuracy: +/- 0.2 mg/L below 10 mg/L
+/- 0.4 mg/L above 10 mg/L
� 2 %
-Accuracy with calibration reset: +/- 0.1 mg/L below 10 mg/L
+/- 0.2 mg/L above 10 mg/L
� 1 %
-Resolution, 12-bit (LabQuest, LabQuest Mini, LabPro) 0.006 mg/L
-Response time: 90% of final reading in 40 seconds
-Temperature compensation: automatic from 0 to 50 deg C
-Pressure compensation: automatic from 30.4 kPa to 202.6 kPa (228 mmHg to 1519 mmHg)
-Salinity compensation: manual, accounted for during calibration
-Minimum sample flow: none

-Calibrate? No. The Optical DO Probe and sensor cap are factory calibrated and a calibration code specific to each individual cap is determined during the manufacturing process. The sensor is set to the stored calibration before shipping. If you wish to calibrate the sensor, you will conduct a one-point calibration using the saturated DO value. Refer to the sensor booklet for detailed instructions.

Optical DO Probe Replacement Cap, order code ODO-CAP, $54
Optical DO Probe Metal Guard, order code ODO-GRD, $49
Primary Productivity Kit, order code PPK, $44
Dissolved Oxygen Probe, order code DO-BTA, $229

Go to top