Campbell Scientific CR200X CR200/CR200X-series Dataloggers - Page 41
Power Requirements, Programming: Firmware and User Programs
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Section 3. Overview 3.1.4 Power Requirements Read More! See CR200(X) Power Supply (p. 53). The CR200(X) operates from a DC power supply with voltage ranging from 7 to 16 V, and is internally protected against accidental polarity reversal. The CR200(X) has modest input power requirements, typically an average current drain of less than 3 mA. Models with built-in radios may have a higher average current drain, depending on the radio's power mode and amount of time the radio is in use. Be sure to include the current usage of the radio and any powered sensors when calculating power supply requirements. In low power applications, the CR200(X) can operate for several months on non-rechargeable batteries. Power systems for longer-term remote applications typically consist of a charging source, a charge controller, and a rechargeable battery. When AC line power is available, an AC/DC wall adapter and a rechargeable battery can be used to construct a UPS (uninterruptible power supply) in conjunction with the CR200(X)'s built-in voltage regulator/charge controller. Contact a Campbell Scientific applications engineer for assistance in acquiring the items necessary to construct a UPS. Applications requiring higher current requirements, such as satellite or cellular phone communications, should be evaluated by means of a power budget with a knowledge of the factors required by a robust power system. Contact a Campbell Scientific applications engineer if assistance is required in evaluating power supply requirements. Common power devices are: • Batteries • Alkaline D-cell - 1.5 V/cell • Rechargeable Lead-Acid battery • Charge Sources • Solar Panels • Wind Generators • AC/DC wall adapters 3.1.5 Programming: Firmware and User Programs The CR200(X) is a programmable instrument, adaptable to demanding measurement and telecommunications requirements. 29