Hazardous Area
X-STREAM O
2
Transmitter
2-2
Instruction Manual
IM-106-910C, Rev. 1.0
November 2009
NOTE
All unused ports on the probe housing and Xi enclosure should be plugged
with a suitable fitting.
SYSTEM
CONSIDERATIONS
A typical system installation for the Hazardous Area X-STREAM with integral
electronics is shown in Figure 2-1.
A source of instrument air is required at the X-STREAM for reference air
flow [0.5 scfh (0,25 /min)].
Since the unit is equipped with an in place
calibration feature, provisions can be made to permanently connect
calibration gas bottles to the transmitter.
To maintain explosion-proof protection the X-STREAM O
2
Transmitter Model XS-O2XP must
not be installed in processes classified as hazardous areas. The model XS-O2XP
Transmitter is for use in non-hazardous areas only.
The Hazardous Area X-STREAM O
2
Transmitter and probe with abrasive shield are heavy.
Use proper lifting and carrying procedures to avoid personal injury.
For X-STREAM O
2
Transmitter Model XS-O2XP (without process side flame arrestor), the
non-process side of the analyzer can be placed in a hazardous rated area according to the
product label. The flue gas side of the probe of the Model XS-O2XP shall not be installed in
processes that are rated as hazardous.
For X-STREAM O
2
Transmitter Model XS-O2XPFA (with process side flame arrestor), both
the non-process and process sides of the analyzer can be installed in hazardous rated areas
according to the product label. The process side of the probe should be considered a
potential ignition source if an explosive gas mixture is present.
If external loop power is used, the power supply must be a safety extra low voltage (SELV)
type.
To maintain explosion-proof protection of the X-STREAM O
2
Transmitter, all cable entry
devices and blanking elements for unused apertures must be certified flameproof, suitable
for the conditions of use and be properly installed.
