Campbell Scientific CR200/CR200X-series Dataloggers - Manual (Page 181)

Appendix A. Glossary
resistance
A feature of an electronic circuit that impedes or redirects the flow of
electrons through the circuit.
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 (Appendix p. 13).
ring line (Pin 3)
Line pulled high by an external device to "awaken" the CR200(X).
Ring Memory
A memory configuration for data tables allowing the oldest data to be
overwritten. This is the default setting for data tables.
RMA Number
Return Materials Authorization number. Obtain an RMA number from a
Campbell Scientific applications engineer PRIOR to sending any equipment
for repair.
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 CSI dataloggers to PC communications is quite rigid, but
transparent to most users. Implementation of RS-232 in CSI 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 (execution interval)
The time interval between initiating each execution of a given Scan
interval. If the Execution Interval is evenly divisible into 24 hours (86,400
seconds), the Execution Interval is synchronized with 24 hour time, so that
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