SMC 4400 - Manual
SMC 4400 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Sierra Monitor Corporation 1991 Tarob Court Milpitas, CA 95035 USA (408) 262-6611 (800) 727-4377 Fax: (408) 262-
9042
The Model 4400 In-Stream Hydrogen Sulfide Analyzer
is used to continuously verify the H
2
S content of a natu-
ral gas sample for the presence of 0-100 ppm levels of
Hydrogen Sulfide. This system is used to insure that
H
2
S levels in natural gas collection lines remains at ac-
ceptable levels to help guard against the corrosive ef-
fects of H
2
S on compressors, pipelines and process
equipment. It is intended for continuous monitoring prior
to the addition of odorants to the gas.
The 4400-10 receives a low pressure natural gas slip-
stream sample. A flow controller in the system delivers
a constant flow to the gas sensor and allows for easy
calibration and maintenance. An in-line coalescing fil-
ter protects the system from sample contaminants.
A 4-20 mA linear signal proportional to sample concen-
tration is provided from the sensor assembly. This sig-
nal can interface with a Sierra Monitor Model 4107-99
Transmitter/Display, a single channel controller, the
Sentry multi-channel controller or most industry stan-
dard controllers or PLCs.
The Model 4107-99 Transmitter/Display option can ac-
cept the 4-20 mA signal from the Model 4400-10 and
provide digital display of the H
2
S concentration, dual
concentration alarm contacts, 4-20 mA output and se-
rial MODBUS communication. The Model 4107-99 can
be mounted directly to the Model 4400 H
2
S Analyzer of
at a remote location. The Model 4107-99 is in an ex-
plosion proof enclosure.
Model 4400
In-Stream Hydrogen Sulfide Analyzer
The Sierra Monitor Model 4400 provides the user with
a low-cost, easy-to-use solution to effective monitoring
of natural gas streams. This system accurately mea-
sures H
2
S concentration in the 0-100 ppm range. Fast
response of 90% of step change within 30 seconds
enables the user to respond quickly to changes in natural
gas supply conditions to prevent product contamina-
tion.
There is minimal maintenance with the Model 4400 with
no tapes to replace, no conditioning solutions, no me-
chanical stream blenders to calibrate. Calibration is
easy with external application of span gas and simple
one person adjustments. Calibration and swapping of
the gas sensor is a quick and simple operation per-
formed every two weeks.
Features
Benefits
n
No tapes to replace or conditioning solutions
Minimal maintenance, no hazardous material to
dispose
n
Fast response
Prevention of product contamination
n
Simple one-person adjustments
Easy calibration, minimal service time
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