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Chapter 1
Installation Site Requirements
Short Gas Paths
Protection from
Adverse Conditions
Environmental
Conditions
Installation Location
Altitude
Space Requirement
Floor
8
Installation Preparation
The analyzer cabinet should be installed as close as possible to the sampling site.
A short sample gas line results in brief lead times. The sample gas line length is
limited to 60 meters with 230 VAC power supply and to 40 meters with 120 VAC
power supply on account of pressure drop build-up in the line and the required
electrical fusing. The air purifier and the test gas cylinders should be installed as
close as possible to the analyzer cabinet.
Protect the analyzer cabinet against
Water spray
Contact with chemicals
Strong sunlight and heat radiation
Strong air currents
Heavy dust
Corrosive atmospheres
Vibration
The analyzer system is intended for indoor use only.
Ambient temperature for storage and shipping
Ambient temperature during operation
In air conditioned rooms
With air conditioning unit (optional)
Relative humidity
Year-round average
Short-term
Occasional slight condensation is permitted, provided the
analyzer system is turned on and the FTIR spectrometer is purged
The maximum installation altitude is 800 m above sea level (for sample gas line
length with probe = 10 m).
Remark: The minimum inlet pressure at the analyzer cabinet is defined to 900 hPa.
This results in a maximum altitude above 800 m; however, the pressure drop along
the probe (15 hPa for a new, dust-free probe) and the heated line must be consid-
ered. Higher altitudes would result in no gas flow through the system. Lowering
the pressure set points of the ACF-NT is not allowed as this directly reduces the
sensitivity of the FTIR spectrometer. Thus, the measurement accuracy according
to QAL1 and QAL2 for components with low concentrations cannot be warranted.
Right side
1 m
for gas lines, air purifier and air conditioning unit (optional)
Left side
0.5 m
for electrical lines
Front
1 m
to open the door (hinged at left)
Top
0.5 m
with air conditioning unit (optional) to prevent heat buildup
The installation site floor must be plane and capable of supporting the cabinets
weight (approx. 300 kg).
Installation Instructions ACF-NT, ACF-NT V0309
–25 to +65 °C
+20 to +25 °C
+5 to +40 °C
max. 75 %
max. 95 %
42/23-571 EN Rev. 5
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