Automatic Calibration; Communication Options - Emerson Rosemount X-STREAM O2 Transmitter Instruction Manual

Combustion flue gas transmitter
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Instruction Manual
IM-106-910C, Rev. 1.0
November 2009

Automatic Calibration

Communication Options

Calibrations consist of introducing bottled gases of known value into the probe
so the electronics can make automatic adjustments to the O
match the bottled gas value. 0.4% O
are recommended. Never use nitrogen or instrument air as calibration gases.
Flowmeters (for calibration gases) and regulators and flowmeters (for
reference air) are available as loose components, mounted into an optional
manual calibration switching panel, or as a fully automatic calibration system
(Figure 1-5) where calibration solenoids are switched from the Xi enhanced
interface. See IM-106-340AC, SPS 4000B Single Probe Autocalibration
Sequencer or IM-106-400IMPS, IMPS 4000 Intelligent Multiprobe Test Gas
Sequencer, for additional details. These automatic calibration accessories are
for use in non-hazardous areas only.
X-STREAM communications are accomplished by a customer-supplied 375
Field Communicator and/or the optional Xi Enhanced Interface. Graphic
displays are available via the optional OxyBalance Display and Averaging
System.
Data Communications
An operator can configure and diagnostically troubleshoot the Hazardous
Area X-STREAM in one of two ways:
1. Using the Xi Enhanced Interface. The optional Xi Enhanced Interface
allows local communication with the electronics. The Xi also carries the
following optional advanced features:
• Fully automatic calibration
• Optional flame safety interface (single probe version only)
• High temperature operation [above 700°C (1292°F) standard
temperature].
• Stoichiometer feature provides the ability to indicate O
when the combustion process goes into reducing conditions
(0% O
).
2
• Programmable reference provides enhanced accuracy when
measuring at or near O
2. Using the HART Interface. The Hazardous Area X-STREAM O
Transmitter's 4-20 mA output line transmits an analog signal
proportional to the oxygen level. The HART output is superimposed on
the 4-20 mA output line. This information can be accessed through the
following:
• Rosemount Analytical Model 375 Field Communicator - The
handheld communicator requires Device Description (DD) software
specific to the X-STREAM. The DD software will be supplied with
many Model 375 units but can also be programmed into existing units
at most Emerson Process Management service offices. See
Section 4, Startup and Operation, for additional information.
• Personal Computer (PC) - The use of a personal computer requires
AMS software available from Emerson Process Management.
• Delta V and Ovation Distributed Control System (DCS) with
AMS-inside capability.
Hazardous Area
X-STREAM O
and 8% O
(balance nitrogen) gases
2
2
level (20.95% O
).
2
2
Transmitter
2
readings to
2
efficiency
2
2
1-7

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