PRODUCT FOCUS SERVICE FOCUS
SIL 2 RATING FOR OxyExact 2200
TRANSMITTER UNIT (2222H) KEEP YOUR ZIRCONIA SENSOR
AT PEAK PERFORMANCE
The SERVOTOUGH OxyExact 2200 is a high-precision Paramagnetic
oxygen analyzer designed for hazardous area installations in the process
industry, configured with a control unit with up to six transmitters. The SERVOTOUGH FluegasExact 2700 is designed for reliable
operation in some of the most hazardous and challenging conditions.
It uses trusted, industry-proven Zirconia sensing for measuring oxygen
in combustion processes, with an extractive sampling system to
protect against harsh process environments.
In addition to the existing 2223 transmitter versions, the high-
temperature OxyExact transmitter unit (2222H) has now been assessed
as being SIL 2 compliant for use in safety instrumented systems
in respect of hardware integrity only, according to IEC 61508 part
2:2010. The assessment covers 2222Hs configured with or without the
optional internal flow alarm feature.
As a result, a new Functional Safety manual has been released
(02220006A) that covers both transmitter versions of the OxyExact
2200. This manual provides information and instructions that will
be needed in order to use both versions of the transmitter in safety
instrumented systems.
The 2222H transmitter is
designed for use in process
control applications where high-
temperature, high-performance
oxygen measurements are
required. This includes the
manufacture of ethylene oxide,
propylene oxide, ethylene
dichloride, and vinyl acetate
monomer acid.
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IMPROVEMENTS
Field-proven Paramagnetic
cell measurement technology.
Sample compartment
temperature up to
110 o C (230 o F).
Sample gas pressure of up
to 45psia.
Measurement of enriched
oxygen in potentially
flammable sample gases.
Certification for hazardous
areas meeting ATEX, IECEx,
FM & CSA compliance.
Multiple transmitter
operation in conjunction
with an OxyExact control unit
(two-wire digital connection
for easy installation).
However, to ensure the analyzer continues to operate at the highest
levels of performance, and to provide peace of mind that
measurements continue to be as accurate as possible, regular health
checks are recommended.
CHECKS
Diagnostics, including
sensor temperatures and
signal voltages.
Enclosure doors are closed
and cable glands secure.
Conducted on-site by an expert engineer from our global Service
Network, a health check delivers complete assurance that the analyzer
is performing within specification. Analyzer damage caused by
heat, abrasion, misuse, etc.
See the table for checks that might be carried out by an engineer for
the Zirconia analyzer on a FluegasExact 2700. Checking mA and
relay operation.
Choosing a health check allows
for a proactive approach to
maintenance for your FluegasExact
2700, detecting any anomalies
before they become costly
problems, and avoiding downtime
for unscheduled repairs.
See all Service products at servomex.expert/service
Making sure the aspirator
air setting is correct.
Testing the analyzer responds
correctly to calibration gases.
Examining probes and
probe filters.
Calibrating oxygen, COe
and flow sensors.
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