When using a Colorimeter (COL-BTA) on the 565 nm setting with a Go!Link (GO-LINK) or EasyLink (EZ-LINK) interface, you may occasionally see a bad value, typically 108% T, after calibration. This value should be closer to 100% T. This problem is ...
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Yes, salinity can be calculated from the chloride ion concentration using Go Direct® Chloride Ion-Selective Electrode (GDX-CL) or Chloride Ion-Selective Electrode (CL-BTA) using the following equation:
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It is not usually necessary to perform a new calibration when using the Relative Humidity Sensor (RH-BTA). You can simply connect the sensor to a Vernier data-collection interface, start your Vernier data-collection program, and the stored calibrati...
In general, when using an energy sensor to measure the power output of a small solar panel such as the KidWind 2V/400mA Solar Panel (KW-SP2V), you will get higher power measurements with a specific resistance load compared with all other amounts of ...
The following are some suggestions for adjusting your experimental procedure and setup to more precisely measure a magnetic field:
Zero the magnetic field sensor in the position and orientation in which you want to use it and then keep it in tha...
For information on correction factor values, see Can I use Vernier PAR sensors with electric lights? When do I need to use a Correction Factor?
You may need to apply a PAR sensor correction factor if you are measuring PAR underwater, in certain f...
Go Direct® Force Plate (GDX-FP)
Specifications and User Guide
Troubleshooting
General: Press the power button on the sensor to turn it on. Connect your sensor as described in the Getting Started instructions for your devic...
The CO2 Gas Sensor (CO2-BTA) and Go Direct® CO2 Gas Sensor (GDX-CO2) have holes in the shaft of the sensor to allow airflow through the sensing element, however, it is possible for debris or small animals to enter these holes if precautions are ...
The life expectancy for a membrane cap will vary quite a bit depending on frequency of use and if it is stored properly. Most teachers will use it once or twice a month for a few hours each time, then store it properly. With proper care and storage, ...
A spectrophotometer can be set to measure % transmittance and/or absorbance over a wide range of wavelengths. Our Colorimeter can only measure four specific wavelengths produced by internal LEDs. The Colorimeter costs far less, but works for a more l...