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Month: December 2014

How to Prevent Negative Readings with LI-COR Light Sensors

How to Prevent Negative Readings with LI-COR Light Sensors

This tech tip helps to prevent mistakes that result in negative readings. When getting negative readings from your light sensor, check your multiplier, the connection between your light sensor and recorder/data logger, or the cable connection.

1. Did you enter the standard multiplier with a negative sign?

The Calibration Multiplier is always a negative number, because the shield of the coaxial cable of the sensor carries the positive signal instead of the negative signal. If you reverse the sign…

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