The new CR800 series of dataloggers is a step in a new direction for Campbell Scientific, with its forward thinking design allowing for the inclusion of an on-board keyboard display within the CR850 option. This new range of low-cost but rugged and accurate measurement and control dataloggers, are already proving themselves in control and automation systems, where their compatibility with Modbus and OPC allow them to integrate with existing networks.
The measurement electronics are encased in a plastic shell with integrated wiring panel - the CR800 series not only has a small footprint, but as a result weighs in at just 0.7 kg (1.5lb). Designed as the long-term successor to the CR510, the CR800 series boasts a range of features to make it a great all-purpose datalogger, including 2 Mb of battery backed SRAM and a program execution rate of 100Hz, three differential (six single-ended) analogue inputs with a resolution as low as 0.33 µV on the most sensitive range. There are also 2 pulse channels and four digital I/O ports.
The CR800 series supports multiple SDMs, in any combination, connected to one datalogger and they are compatible with the AM16/32 and AM25T. The standard operating range is -25° to +50°C. An extended range of -55° to +85°C for the CR800, or -30° to +80°C for the CR850 is also available.
The CR800 series supports both the PAKBUS® communication protocol and Modbus RTU protocol—both floating point and long formats. The datalogger can act as a slave, master, or both. The full range of telemetry options are compatible with the new loggers, including Ethernet, phone modems (land-line and cellular), radios, short haul modems, GOES satellite transmitters, and multi-drop modems. Also featured are RS-232 and CS I/O ports.