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NGA 2000 CLD
Instruction Manual
HAS60E-IM-HW
June 2007
2 - 2 Installation Emerson Process Management GmbH & Co.OHG
CAUTION
EXTERNALLY RESTRICT SAMPLE/CALIBRATION
GAS FLOW TO LESS THAN 2,200 cc/min.
Damage to internal components may occur if this
flow level is exceeded.
No restrictor is provided in the sample inlet of this
module. For those users who cannot externally
limit sample flow, contact your local service or
sales office.
2-3 LOCATION
Install the CLD Analyzer Module in a clean, weather-pro-
tected, vibration-free location free from extreme tempera-
ture variations and moisture. For best results, install the
instrument near the sample stream to minimize sample
transport time.
The analyzer should be installed within ±15° of horizon-
tal.
NOTE
Unrestricted air flow to the rear of the Analyzer Mod-
ule is critical to its performance and reliablilty.
Operating ambient temperature is 0 °C to 45 °C (32 °F to
113 °F). Temperature change should not exceed 10 °C
(18 °F) per hour. The same temperature range restric-
tions apply to the location of the air and span gas cylin-
ders.
2-4 GASES
a. Gas Conditioning (Sample Handling)
NOTE
All gases must be conditioned before supplying!
The gases must be
- dry
- free of dust (filtered for particulates down to two
microns)
- free of aggressive components affecting gas paths
materials (e.g. by corrosion)
- free of Ammonia etc. in order to prevent crystallin
formation
before entering the Analyzer Module.
The gases should have a dew point 5 °C (13 °F) below
coldest ambient temperature.
Table 2-1: Gas Specifications
MAXIMUM NO
x
LEVEL IN PARTS
PER MILLION
GAS SUPPLIED TO
REAR PANEL AIR
INLET
SETTING ON OZONE
PRESSURE GAUGE
(pressure values: gauge)
SETTING ON SAMPLE
PRESSURE GAUGE
(pressure values: gauge)
800 Air
690 hPa (10 psig); provides flow
of approximately 500 cc/min. to
ozone generator
344 hPa (5 psig); provides flow
of approximately 200 cc/min. to
reaction chamber
2,500 Air
690 hPa (10 psig); provides flow
of approximately 1,000 cc/min. to
ozone generator.
344 hPa (5 psig); provides flow
of approximately 70 cc/min. to
reaction chamber.
10,000 Oxygen
1035 hPa (15 psig); provides flow
of approximately 1,000 cc/min to
ozone generator.
103 hPa (1.5 psig); procides
flow of approximately 20 cc/min.
to reaction chamber.