FL4000
13
Term /
Abbreviation
Definition
NPT
National Pipe Thread
OV Return
Over voltage return
0VDC
Power Supply Common Ground
Oxidation
Combining with Oxygen
PCB
Printed Circuit Board
PLC
Programmable Logic Controller
ppm
Parts per million
RFI
Radio Frequency Interference
RMS
Root-Mean-Square
ROM
Read Only Memory
RTV
Room Temperature Vulcanization
Safety Earth
Grounded to the earth
Slave
One or more devices or processes controlled by a master controller
SMT
Surface Mount Technology
SPAN Value
The programmed range of measurable parts per million
SPDT
Single Pole, Double Throw
SPST
Single Pole, Single Throw
TB
Terminal Block
V
Volts
VAC
Volts Alternating Current
VDC
Volts Direct Current
XP
Explosion Proof