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Month: July 2009

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It’s Pyranometer Calibration Season

It’s Pyranometer Calibration Season

The LI-200 Pyranometer Calibration schedule will be reaching its annual suspension on October 1st, 2011 and continuing through until February 28th, 2012.

LI-COR encourages our customers to return their LI-200 Pyranometer Sensors for recalibration (suggested every 2 years after field deployment) between the months of March and September. Why? Because pyranometer sensors need to be calibrated outdoors in natural sunlight in order to construct an accurate relationship between the output of each sensor and incoming solar radiation. During LI-COR’s 40…

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Download Sensor Calibration Certificates

Download Sensor Calibration Certificates

LI-COR is pleased to announce that Light Sensor calibration data are now available online through the Technical Resources Library. Calibration certificates for every Quantum, Pyranometer, and Photometric sensor ever made are available 24 hours a day, 7 days a week. The calibration certificate is delivered to your computer as a PDF for easy saving and printing.

To acquire your instrument’s calibration data, simply go to the LI-COR Technical Resources Library page. On the lower right corner of the page,…

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A Tisket, a Tasket, How to Replace a Gasket

A Tisket, a Tasket, How to Replace a Gasket

With use, all gaskets on the LI-6400/LI-6400XT will eventually need replacement. Care should be taken to protect the painted surfaces of the chamber when removing the old gaskets. Typically, the gaskets can be pulled gently off the chamber, but they leave an adhesive residue. The adhesive should be removed with a very mild adhesive remover (e.g. citrus-based Goo Gone®). Using chemicals such as ethanol or acetone will etch the paint, which will create leaks under the gaskets over time….

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Installing Exhaust Tubes with Flair

Installing Exhaust Tubes with Flair

The chamber exhaust tube on the LI-6400XT is used to route exhaust air from the sample chamber into the match valve. This tube makes a pressure seal against a small stainless steel tube on the bottom of the chamber and one on the body of the match valve. Installing this tube can be difficult and if not done properly can lead to sample chamber leaks and errors when matching. To ease installation, the ends of the exhaust tube can…

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Torque for the LI-6400XT Chamber screws

Torque for the LI-6400XT Chamber screws

When switching between the standard clamp style leaf chambers on the LI-6400 and the 6400-09 Soil Respiration Chamber or the 6400-05 Conifer Chamber, it is necessary for users to remove the chamber mounting plate. This plate mounts directly to the optical bench and provides the mounting surface for these chambers. It is held in place with eight small hex-cap screws, which, if over tightened can break off and become nearly impossible to remove from the optical bench housing.

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