Teledyne GFC-7000T - Trace CO2 Analyzer - manual - Manual (Page 34)

Getting Started Model GFC7000TA Carbon Dioxide Analyzer
Teledyne Analytical Instruments 16
Table 3-2: Rear Panel Description
Component Function
cooling fan Pulls ambient air into chassis through side vents and exhausts through rear
AC power
connector
Connector for three-prong cord to apply AC power to the analyzer
CAUTION! The cord’s power specifications (specs) MUST comply with the power
specs on the analyzer’s rear panel Model number label
Model/specs label Identifies the analyzer model number and provides power specs
PURGE IN
SAMPLE
Connect a gas line from the source of sample gas here
Calibration gases are also inlet here on units without zero/span valve options installed
EXHAUST
Connect an exhaust gas line of not more than 10 meters long here that leads outside
the shelter or immediate area surrounding the instrument
VENT SPAN
Span gas vent outlet for units with zero/span valve options installed
Connect an exhaust gas line of not more than 10 meters long here
PRESSURE SPAN
On units with zero/span valve options installed, connect a gas line to the source of
calibrated span gas here
IZS
Internal Zero Air: On units with zero/span valve options installed but no internal zero
air scrubber attach a gas line to the source of zero air here
RX TX LEDs indicate receive (RX) and transmit (TX) activity on the when blinking
COM 2 Serial communications port for RS-232 or RS-485
RS-232 Serial communications port for RS-232 only
DCE DTE
Switch to select either data terminal equipment or data communication equipment
during RS-232 communication
STATUS For outputs to devices such as Programmable Logic Controllers (PLCs)
ANALOG OUT For voltage or current loop outputs to a strip chart recorder and/or a data logger
CONTROL IN For remotely activating the zero and span calibration modes
ALARM Option for concentration alarms and system warnings
ETHERNET Connector for network or Internet remote communication, using Ethernet cable
ANALOG IN
Option for external voltage signals from other instrumentation and for logging these
signals
USB Com port optional connector for direct connection to laptop computer, using USB cable
Information Label Includes voltage and frequency specifications