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Benchmark 2500DF-3000DF Installation, Operation & Maintenance Manual
Phrases, Abbreviations and Acronyms - Continued
Phrase, Abbreviation or
Acronym
INTLK (INTL'K)
I/O
I/O Box
IP
IRI
ISO
LED
LN
MA (mA)
MAX (Max)
MIN (Min)
Modbus®
NC (N.C.)
NO (N.O.)
NOx
NPT
O2
O.D.
PMC Board
PPM
PTP
PWM
REF (Ref)
RES.
RS232
(or EIA-232)
RS422
(or EIA-422)
RS485
(or EIA-485)
RTN (Rtn)
SETPT (Setpt)
SHLD (Shld)
OMM-0099_0A
GF-145
FORWARD
Interlock
Input/Output
Input/Output (I/O) Box currently used on Benchmark, Innovation and KC1000
Series products
Internet Protocol
Industrial Risk Insurers. A now discontinued code used to define gas trains
containing two SSOVs and a solenoid operated vent valve.
Isolated
Light Emitting Diode
Low NOx
Milliampere (0.001 Amp), one thousandth of an amp
Maximum
Minimum
A serial, half-duplex data transmission protocol developed by AEG Modicon
Normally Closed
Normally Open
Nitrogen Oxide
National Pipe Thread
Oxygen
Outside Diameter
A Primary Micro-Controller (PMC) board is contained in the C-More Control
Box used on all Benchmark units.
Parts Per Million
Point-to-Point (usually over RS232 networks)
Pulse Width Modulation
Reference
Resistive
A standard for serial, full-duplex (FDX) transmission of data based on the
RS232 Standard
A standard for serial, full-duplex (FDX) transmission of data based on the
RS422 Standard
A standard for serial, half-duplex (HDX) transmission of data based on the
RS485 Standard
Return
Setpoint Temperature
Shield
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
Meaning
Page 9 of 234
PR1: 05/21/2014
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