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4 Acronyms, abbreviations and definitions
Section 1: Introduction Daniel 3410 Series Ultrasonic Gas Flow Meter Installation Manual
June 2014 3-9000-759 Rev D
IS Intrinsically Safe
K Kelvin (temperature unit)
kHz
kilohertz (10
3
cycles per second, frequency unit)
LAN Local Area Network
LED Light-emitting Diode
m meter (length unit)
m
3
/d
cubic meters per day (volumetric flow rate)
m
3
/h
cubic meters per hour (volumetric flow rate)
m
3
/s
cubic meters per second (volumetric flow rate)
mA milliamp (current unit)
MAC Address Media Access Control (Ethernet Hardware Address -EHA)
microinch (μinch)
microinch (10
-6
in)
micron
micrometer (10
-6
m)
MMU Memory Management Unit
MPa
megapascal (equivalent to 10
6
Pascal) (pressure unit)
N/A Not Applicable
Nm
3
/h
normal cubic meters per hour
NOVRAM Non-Volatile Random Access Memory
Pa Pascal, equivalent to 1 newton per square meter (pressure unit)
Pa⋅s Pascal Second (viscosity unit)
PC Personal Computer
PFC Peripheral Field Connection (Board)
P/N Part Number
PS Power Supply (board)
psi pounds per square inch (pressure unit)
psia pounds per square inch absolute (pressure unit)
psig pounds per square inch gage (pressure unit)
RRadius of meter
rad radian (angle)
RAM Random Access Memory
RTS Request-to-Send; the RS-232C handshaking signal output by a receiver when it is
ready to receive data
RTU MODBUS A Modbus protocol framing format in which elapsed time between received charac-
ters is used to separate messages. RTU stands for Remote Terminal Unit.
Table 1-1 Daniel 3410 Series Gas Ultrasonic Meter acronyms, abbreviations and definitions
Acronym or abbreviation Definition