Operator`s manual

APPENDIX A. GLOSSARY
A-3
SIGNATURE: A number which is a function of
the data and the sequence of data in
memory. It is derived using an algorithm
which assures a 99.998% probability that if
either the data or its sequence changes, the
signature changes.
THROUGHPUT: The throughput rate is the
rate at which a measurement can be made,
scaled to engineering units, and the reading
stored in Final Storage. The 21X has the
ability to scan sensors at a rate exceeding
the throughput rate (see SAMPLE RATE).
The primary factor affecting throughput
rate is the amount of processing specified
by the user. In normal operation, all
processing called for by an instruction must
be completed before moving on the next
instruction. The maximum throughput rate
for a fast single-ended measurement is 256
measurements per second (16
measurements, 16 times per second).