Campbell CR800 Spécifications télécharger pdf (Page 31)

CR800 and CR850 Overview

OV4.4.1 Creating a CR800 Program using Short Cut

Objective: Every one second, measure air temperature in degrees C with a

Type T thermocouple, and store one-minute average Battery Voltage, Panel

Temperature, and Thermocouple temperature.

A Type T Thermocouple is included with CR800, packaged with

the screwdriver. The thermocouple consists of a pair of

5-inch wires with blue/red insulation, soldered together at one

end.

NOTE

Click on the Short Cut button to display the Home screen, as shown below.

Each of the four steps has a button with a ? for accessing Help. Use the Help

in conjunction with the steps outlined below:

Step 1: Create a New File

Step 1 is to open a new or existing file. From the Home page, click the New

button. Use the drop-down list box to select the CR800. Enter a 1 second

Scan Interval and click OK to complete Step 1.

Step 2: Select the Sensors

A Type T thermocouple consists of two wires of dissimilar metals (copper and

constantan) soldered together at one end. The soldered end is the measurement

junction; the junction that is created when the thermocouple is wired to the

CR800 is the reference junction.

When the two junctions are at different temperatures, a voltage proportional to

the temperature difference is induced into the wires. The thermocouple

measurement requires the reference junction temperature to calculate the

measurement junction temperature.

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Campbell CR800 Spécifications Page 31