Campbell CR3000 Micrologger, Руководство оператора

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Section 11. Glossary
546
Term: multi-meter
An inexpensive and readily available device useful in troubleshooting data
acquisition system faults.
Term: multiplier
A term, often a parameter in a CRBasic measurement instruction, that
designates the slope (aka, scaling factor or gain) in a linear function. For
example, when converting °C to °F, the equation is °F = °C*1.8 + 32. The
factor 1.8 is the multiplier. See offset
(p. 547).
Term: mV
The SI abbreviation for millivolts.
Term: NAN
Not a number. A data word indicating a measurement or processing error.
Voltage over-range, SDI-12 sensor error, and undefined mathematical results
can produce NAN. See the section NAN and ±INF
(p. 506).
Term: neighbor device
Device in a PakBus network that communicate directly with a device without
being routed through an intermediate device. See PakBus
(p. 548).
Term: NIST
National Institute of Standards and Technology
Term: node
Devices in a network — usually a PakBus network. The communication
server dials through, or communicates with, a node. Nodes are organized as
a hierarchy with all nodes accessed by the same device (parent node) entered
as child nodes. A node can be both a parent and a child. See PakBus —
Overview
(p. 82).
Term: NSEC
Eight-byte data type divided up as four bytes of seconds since 1990 and four
bytes of nanoseconds into the second. See Data Type
(p. 137)
tables.