Campbell Data Logger cr10
Use of the Data Logger
Theory of the Campbell data Logger
The Campbell data logger is a computer that records data from sensors both analog (voltage) and digital(counts). The data logger can also be used as a controller to turn on and off electrical equipment. The wiring panel has a 12 volt power input. The best way to supply power to the data logger is to use a 12 car battery. This will last for several months with out recharging. The measurements from the sensor are made by connecting the sensor leads to either single channel input or dual channel input. Single channel input are referenced to ground. Dual Channel inputs are floating unless connected to ground. The data logger ports are numbered 1h 1l , 2h 2l up to 6h and 6l . The H stands for the high side of the single and the L stands for the Low side of the single. The Data logger can read pulse output from a sensor such as a tipping bucket rain gauge by connecting to p1 or p2. The data logger also can supply a voltage source for sensors requiring a excitation voltage .These ports are E1, E2, E3. You can talk to the computer using pc208 software connected to a serial port on the computer and through a optically isolated interface that is then connected to the serial port on the Campbell data logger. Ground ports are Ag.
Use of the Data logger
The data logger is a computer that requires a program to tell it what to do. It can come with a prom which is a computer chip that already has the program in it or you can create the program using a edlog editor supply by Campbell or by using the new shortcut program. For simple problems use short cut by downloading the short cut program from http://www.campbellsci.com/datalogger-software
after creating the program download Pc200w software to communicate with the data logger.
The language used in the cr10 is one developed by campbell. The language used in the Cr1000 is basic. The programs can not be interchanged.
Last modified 01/15/96