
GAS ANALYZER 317
INFORMATION ON GAS ANALYZER
NOx
Sensor Cover
• Removal of cover provides access to NOx measurement device.
12V DC Power Cable Input
• Used when power is supplied from vehicle cigarette lighter or other 12-volt power
source.
Tailpipe Exhaust Sample Input
• Inlet fitting for the 25-foot sample exhaust hose that connects to the vehicle tailpipe.
Exhaust Outputs
• Measured sample exhaust exits from the internal PXA-1000 bench through these ports.
Drain Filter
• Condensed exhaust water from the vehicle tailpipe is separated by the PXA-1000 and
expelled from the analyzer through this port.
Calibration Gas Input
• Inlet port for calibration gas. Used during routine PXA-1000 calibration.
Instrumentation Ports
• I/P ports used for interface with the Tester and other I/P devices. The two ports can be
used either simultaneously or independently, and support future expansion options.
RS-232 Port
• RS-232 port connects to PC to support PXA-1000 to PC communication. It is reserved
for future use.
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