For most dissolved oxygen testing, it is not necessary to compensate for salinity. The salinity of a sample can have an affect on the dissolved oxygen (DO) concentration in highly saline water (>1 part per thousand salinity). In this case an adjus...
The needle of any syringe used with the Mini GC should have an outer diameter of 0.5 mm or 0.019 inch. This is a 25 gauge needle size.
It should be inserted 1.5 inches into the injection port of the Mini GC. The syringe that Vernier ships with the M...
The weight lifting buckets that come with KidWind Advanced Wind Experiment Kit (KW-AWX) and KidWind Basic Wind Experiment Kit (KW-BWX) and their respective classroom packs can be purchased from IKEA.
The buckets are the KALAS Tumbler.
You can ei...
Vernier does not have a frequency generator application that operates on a Chromebook. The Chrome Web Store does (at the time of this edit) have a Frequency Generator Extension that will allow for control of frequency and amplitude. We cannot contr...
Part of the confusion in this lab activity is related to the names given for different values in the data table and for some missing terms in the instructions.
It will help if you review what the student is trying to determine in this exercise. ...
CO2 Gas Sensor (CO2-BTA)
Specifications and User Guide
Which CO₂ Gas sensor do I have?There have been three versions of wired CO₂ Gas Sensors. One model was sold up to about January 2007, then replaced with another model from...
The total volume of the BioChamber 2000 (BC-2000) is 2060 mL.
The total volume of the BioChamber 250 (BC-250) is 325 mL.
The volume displaced by the shaft of the O2 Gas Sensor when placed into the BioChamber is 15 mL.
The volume displaced b...
A small number of LabQuest 2 units shipped in the Fall of 2016 that have an improper internal calibration. These LabQuests read certain sensors poorly. The most common symptom is that the LabQuest 2 will read a number around 80°C at room temperature...
Some of our sensors include a cable or cord, and it is tempting to wrap it around the sensor for storage. In a short time, the strain applied by this bending and twisting can damage the strain relief of the cord, and sometimes render the sensor unusa...
Ocean Optics USB2000 units may work properly with Logger Pro 3 (version 3.8.4 or newer).
If you have a Windows 8.1 computer or newer, a USB2000 will not work with Logger Pro 3. This is a Windows issue.
Also note older versions of Logger Pro 3 will n...