Emerson HAS60E-IM-HW Benutzerhandbuch

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Instruction Manual
HAS60E-IM-HW
June 2007
NGA 2000 CLD
2 - 3
Installation
Emerson Process Management GmbH & Co.OHG
b.
Connections
Connect inlet and outlet lines for sample, ozonator air,
and exhaust to appropriately labeled fittings on the rear
panel (see Figure 2-2) , each of which is a 1/4-inch fer-
rule-type compression fitting.
Stainless steel or Teflon tubing is recommended for the
sample line. Exhaust tubing should be 1/4 inch (6.3 mm)
or larger, and made of stainless steel or Teflon.
Zero/span gases should be introduced at the SAMPLE
IN fitting at normal sample inlet flow rate/pressure.
c.
Specifications
Each gas should be supplied from a cylinder equipped
with a clean, non-corrosive, two-stage regulator. A shut-
off valve is recommended.
Zero Gas
Nitrogen (N
2
) is recommended for use as zero gas.
Alternatively synthetic air or NO
x
 free ambient air can be
used.
Calibration Gas
A mixture of NO in a background of nitrogen is recom-
mended as span gas. For maximum accurancy, the con-
centration of NO in the span gas should be about 80 %
to 100 % of full scale range.
Figure 2-2: CLD Rear Panel Connections
At no time should ozonator gas pressure exceed
2,070 hPa-gauge (30 psig). Damage to internal com-
ponents may occur if this pressure level is ex-
ceeded.
CAUTION
Ozonator Source Gas
For analyzers with ranges less than 0 to 2,500 ppm NO
x
free ambient air should be used for generation of the
ozone required for the chemiluminescence reaction. For
ranges higher than 0 to 2,500 ppm, NO
x
 free oxygen is
When using ambient air an external air conditioning unit
(LAM) can optionally be used (contact your local service
or sales office).
Sample Gas Pressure
Bypass Sample Gas Flow
Bypass sample gas flow rate should be between 700
and 2,000 cc/min. with backpressure regulator pressure
(see Capillary Pressure in „Current Measurement Pa-
rameters“ menu, which can be viewed by selecting the
PARMS softkey in "Main Menu") adjusted to 344 hPa (5
psig).
Exhaust
Ozonator Air
Exhaust Fan
Sample IN
Intake Fan