Campbell Scientific CR200X CR200/CR200X-series Dataloggers - Page 35
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Section 3. Overview 3.1 CR200(X) Overview The CR200(X) Datalogger is a precision instrument designed for low-power measurement applications. CPU, analog inputs, digital outputs, and memory are controlled by the operating system in conjunction with the user program. The user program is written in CRBASIC, a programming language that includes data processing and analysis routines and a standard BASIC instruction set. Campbell Scientific's datalogger support software facilitates program generation, editing, data retrieval, and real-time data monitoring (see Support Software (p. 143)). FIGURE. Features of a Data Acquisition System (p. 24) illustrates a common CR200(X)-based data acquisition system. The CR200(X) is a multimeter with memory and timekeeping. It is one part of a data acquisition system. To acquire quality data, suitable sensors and reliable telecommunications devices are also required. Sensors transduce phenomena into measurable electrical forms, outputting voltage, current, resistance, pulses, or state changes. The CR200(X), sometimes with the assistance of various peripheral devices, can measure most electronic sensors. Contact a Campbell Scientific applications engineer if you have questions about a sensor's compatibility with a CR200(X) datalogger. The CR200(X) measures analog voltage and pulse signals, representing the magnitudes numerically. Numeric values are scaled to the unit of measure such as millivolts and pulses, or in user specified engineering units such as wind direction and wind speed. Measurements can be processed through calculations or statistical operations and stored in memory awaiting transfer to a PC via external storage or telecommunications. 23