Teledyne 9110EH - Nitrogen Oxides Analyzer - Manual (Page 28)

Getting Started Model 9110EH Instruction Manual
• Attach the 1/4" exhaust line to the exhaust port of the analyzer and to the inlet port
of the pump.
• Attach zero air and span gas supply lines as appropriate (Figure 3-5 and Figure 3-6)
to the rear panel (Figure 3-3). For this type of analyzer, zero air and span gas are
defined as follows.
3.3.1. Span Gas Defined
Span gas is defined as a gas specifically mixed to match the chemical composition of the
type of gas being measured at near full scale of the desired measurement range. To
measure NO
X
with the M9110EH NO
X
Analyzer, it is recommended that you use a span gas
with an NO concentration equal to 80% of the measurement range for your application.
Pump
No Valve Options Installed
MODEL
9110EH
Sample
Zero Air
Exhaust
Span
MODEL 700 Gas
Dilution
Calibrator
(with Ozone generator
option)
MODEL 701
Zero Air
Generator
VENT
Calibrated
NO gas
(high
concentration)
Source of
SAMPLE gas
removed
during
calibration
Valve
OR
Needle valve to
control flow
MODEL
9110EH
Sample
Zero Air
Exhaust
Span
MODEL 701
Zero Air
Generator
VENT
Calibrated
NO gas
(At span gas
concentration)
Source of
SAMPLE gas
removed
during
calibration
Pump
Figure 3-5: Basic Pneumatic Connections for Units Without Valve Options
14 M9110EH Rev B