Teledyne 7500ZA - Infrared Gas Analyzer - Manual (Page 31)

NDIR Gas Analyzer Instalation
Teledyne Analytical Instruments 15
Name Description Name Description
(5) Electronic gas
cooler
Dries the moisture in
the sample gas to a
dew point of approx.
2°C measuring the oxygen
concentration in
sample gas.
(Not used when O
2
sensor is built-in.)
(6) Solenoid valve
Used for flowing the
calibration gas.
(7) Membrane filter
PTFE filter used to
eliminate fine dust
particles.
(11) NO
2
/NO
converter
Added to NOx Analyzer.
A special catalyst
material is used for
efficient conversion of
NO
2
to NO
3.5 Electrical Connections
CAUTION: To prevent electric shock or fire:
 Turn off the power before wiring.
 Always use a protective earth connection.
 Select a proper wiring material that satisfies the
ratings of the instrument. • Be sure to connect a
power supply of correct rating.
The power terminal block and external input/output connector are
installed on the rear panel. Refer to the diagram below.