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Lists
B.1 List of abbreviations
SIPROCESS UV600
Operating Instructions, 10/2013, A5E03529375-02
179
Abbreviation Description
MLFB
Machine-readable product designation
mm
Millimeter
m/s
2
Meter per second squared, a unit for acceleration
N
2
Nitrogen
NAMUR
Standards working committee for measuring and control technology in the chemical
industry
NC
No connection
MSL
Mean sea level (height above sea level)
NO
Nitrogen oxide
NO
2
Nitrogen dioxide
NO
x
Nitrous oxides:
collective name for the gaseous oxides of nitrogen.
No.
Number
O
2
Oxygen
or similar
or similar
PA
Process Automation
PA
Polyamide, a plastic, commercial name, e.g. nylon
PE
Protective Earth
ppm
Parts per million = 10
−
6
= 0.0001 %
PROFIBUS Process fieldbus
PTFE
Polytetrafluoroethylene, a plastic, commercial name, e.g. Teflon
PVDF
Polyvinylidene fluoride, a plastic
RAM
Random access memory (memory with random (direct) access)
RC
R = resistor, C = capacitor
R.H., RH
Relative humidity
RS232
Serial interface for data communication
RS485
Serial interface for high-speed data transfer
s
Second
SO
2
Sulfur dioxide
SRU
Sulfur Recovery Unit
SS-316
Stainless Steel 316 (US classification for stainless steel mat. no. 1.4401)
SW
Software
t
Time (from lat. 'tempus')
T
Slow-blow (fuse values)
™
Trade Mark
UV
Ultraviolet
V
Volt
VA
Volt-ampere
V
rms
RMS voltage, peak-to-peak voltage
WA
Maintenance request