Teledyne 9110TH - Nitrogen Oxides Analyzer - Manual (Page 32)

Model 9110TH NOx Analyzer Getting Started
Teledyne Analytical Instruments 12
Figure 3-4: 9110TH/M Rear Panel Layout
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 label Identifies the analyzer model number and provides voltage and frequency specs
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.
SPAN 1
On units with zero/span valve options installed, connect a gas line to the source of
calibrated span gas here.
ZERO AIR
(option)
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 Option for direct connection to laptop computer, using USB cable.