Campbell Scientific CR1000KD CR800 and CR850 Measurement and Control Systems - Page 441

Section 11. Glossary resistor A device that provides a known quantity of resistance. resolution A measure of the fineness of a measurement. See also Accuracy, Precision, and Resolution (p. 449). ring line (Pin 3) Line pulled high by an external device to "awaken" the CR800. Ring Memory A memory configuration for data tables allowing the oldest data to be overwritten. This is the default setting for data tables. ringing Oscillation of sensor output (voltage or current) that occurs when sensor excitation causes parasitic capacitances and inductances to resonate. RMS Root‐mean square, or quadratic mean. A measure of the magnitude of wave or other varying quantities around zero. RS‐232 Recommended Standard 232. A loose standard defining how two computing devices can communicate with each other. The implementation of RS‐232 in Campbell Scientific dataloggers to PC communications is quite rigid, but transparent to most users. Implementation of RS‐232 in Campbell Scientific datalogger to RS‐232 smart‐sensor communications is quite flexible. sample rate The rate at which measurements are made. The measurement sample rate is primarily of interest when considering the effect of time skew (i.e., how close in time are a series of measurements). The maximum sample rates are the rates at which measurements are made when initiated by a single instruction with multiple repetitions. scan interval The time interval between initiating each execution of a given Scan() of a CRBasic program. If the Scan() Interval is evenly divisible into 24 hours 441