Archive for July, 2007

Using 5 Volt (or larger) Sensors with the LI-1400 Datalogger

Friday, July 6th, 2007

1400 current

The 1400-301 terminal block has sensor inputs for 4 voltage channels (V1-V4) and 2 current channels (I4 and I5). The 4 voltage channels have an input range of ±2.5 volts. Many of our users would like to use sensors with a wider voltage range (e.g. ±5V) with the LI-1400. A little-known feature of the 1400-301…

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Posted in LI-1400, Light Measurement, Tech Tips | No Comments »

Interfacing LI-COR Radiation Sensors with Campbell Scientific Dataloggers

Friday, July 6th, 2007

mv adapter

Many of our users like to interface LI-COR radiation sensors with dataloggers from Campbell Scientific. LI-COR can provide millivolt adapters for use with our type “SA” radiation sensors; these adapters have a BNC connector that mates with the sensor, and are terminated with bare wire leads for connection to the datalogger. If a differential measurement…

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Posted in Light Measurement, Tech Tips | 6 Comments »

Lead-Acid Battery Maintenance and Service

Friday, July 6th, 2007

lead-acid battery

LI-COR lead-acid batteries: 6400-03, 3000B, 6200B, 6000B Batteries must be stored fully charged and in a cool place, if possible. For long term storage, place the batteries on the charger overnight every three months. Charging the batteries: Batteries are normally charged with the LI-6020 battery changer. Make sure that the voltage selector slide switch on…

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Posted in LI-6400XT, Photosynthesis, Tech Tips | No Comments »

LI-8100 Measurement Settings & Techniques

Friday, July 6th, 2007

LI-COR receives many calls asking how best to configure their LI-8100 measurement protocol. A typical survey or long-term measurement should consist of an observation length of 1.5 to 2.5 minutes, and a deadband of 20-30 seconds. Remember that observation length is the length of time that the chamber is on the collar, and the deadband…

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Posted in LI-8100A, Soil Flux, Tech Tips | No Comments »

The LI-7500… Riding With “Miss Piggy”

Friday, July 6th, 2007

MissPiggy sideview

As another hurricane season approches, few of us will soon forget the devastation wrought by such recent storms with now-familiar names like Isabel, Fabian, Rita, and of course, Katrina. Anyone in the path of one of these killer storms can appreciate the work that a number of hurricane researchers perform; work that helps forecasters predict…

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Posted in Feature Stories, Gas Analyzers | No Comments »