Campbell CS100 Instrukcja Obsługi Pobierz pdf (Strona 13)

Instruction Manual

4.2 5-pin Screw Terminal Plug Connector

The datalogger connects to the CS100 via a 5-pin screw terminal plug

connector. This connector is removable and may be replaced. The

replacement connector may come with a connector key attached to it to

ensure that the connector is plugged into the CS100 right side up (see

Figure 3). When the connector is right side up, it will easily plug into the

barometer.

Figure 3. Connector Key Attached to

5-pin Screw Terminal Plug Connector

A 5-pin screw terminal that is plugged in upside

down will damage the sensor—perhaps beyond

repair.

5. Programming

The CS100 sensor is measured using the singled-ended voltage measurement

instruction.

Atmospheric pressure changes little with time. In most weather station

applications measuring pressure once an hour is adequate.

Program Example 1 is for the dataloggers that use the CRBasic language,

such as CR200, CR800, CR850, CR1000, CR3000, CR5000, and

CR9000(X). In the example, the CR1000 measures the CS100 once an hour

in a program that runs at 1 Hz. In order to keep the CR1000 running in a

pipeline mode, the measurement instruction is placed outside the “If”

statement. The measurement is made every scan, and the measured value is

first written into a temporary variable called "CS100_temp". Once the

CS100 is turned on one minute before the hour, the CS100 starts to make the

correct pressure measurements. At the top of the hour, the correct value is

copied into the current variable called "pressure", and the sensor is turned off

immediately.

WARNING

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Campbell CS100 Instrukcja Obsługi Strona 13