Vernier PAR sensors are calibrated before shipping and should not need calibration. You can verify the calibration using the Clear Sky Calculator at: www.clearskycalculator.com The Clear Sky Calculator for Quantum Sensors reports the theoretical PPF...

The Vernier light sensors can not be used to measure PAR, photosynthetically active radiation. They do not have the right spectral response nor are they calibrated correctly. If you want to measure PAR you should consider purchasing a Vernier PAR sen...

Yes. Logger Pro 3.8.3 is the first version to support Ocean Optics devices on 64-bit Windows Vista and Windows 7....

1) Separate the light source/cuvette holder from the detector. To do this, look at the "bottom" (not the underside) of the light source end of the spectrometer and find the 2 holes in which the set screws are deeply recessed (about 6cm, or ~2.5 in.)....

First, get a small screwdriver with a flat head. We found one at Ace Hardware, for $0.89, that works perfectly. The screwdriver's head should be about 1/4 inch and its length should be at least 2 1/2 inches. There are two set screws you need to loose...

Set up your spectrometer to collect a full absorbance spectrum with a computer and Logger Pro 3. Follow these steps to prepare the column of % transmittance data: 1) Open the Data menu and choose New Calculated Column. 2) (Optional) Name the new co...

Follow the steps below to add a file of emission spectrum data to a graph: Measure the emission spectrum of a light source (spectrum tube, LED, etc). Click File and then choose Import From ▶ Logger Pro File… Find the Logger Pro 3 file ...

At sample times (also known as integration time) greater than 1000 milliseconds, it is impossible to differentiate between the normal signal noise of the spectrometer and a measurable reading of light emission. The readings have no significant meanin...

We do indeed continue to support the original CBL. A great way to get started is by following the instructions in the CBL Made Easy guidebook. In a few simple steps, you will load the programs necessary to collect data with our sensors. We al...

When sending e-mail with the LabQuest 2 or LabQuest 3, the e-mail can fail to send with an error code 76. When you look at the details for that code, it will say: msmtp: TLS handshake failed: The Diffie-Hellman prime sent by the server is not accep...