General Monitors S216A, Инструкция по эксплуатации

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This chapter provides a general description,
some features & benefits and a partial
listing of applications for the Model S216A.
1.1 Gen eral De scrip tion
The Model S216A is a Three Relay Smart
Sensor assembly designed to detect the
presence of Hydrogen Sulfide gas. The
microprocessor-based electronics are
contained within an explosion-proof housing
and can process information at the sensor
site. A digital display provides gas
concentration levels and fault codes that can
be viewed through a window in the cover.
Relay contacts and an analog signal (4-
20mA) provide remote and/or discrete
indications of the sensor’s operation. The
Model S216A Hydrogen Sulfide Gas
Enhanced Smart Sensor Assembly is rated
explosion proof (NEMA 4x weather proof
rated enclosure) for use in Class I, Division
1, Group B, C, and D hazardous areas.
1.2 Fea tures and Bene fits
Microprocessor-Based Electronics :
monitors eight individual fault conditions,
processes input signals from the sensor and
provides outputs in the form of display code,
relay contact activation, and an analog
signal.
One Person, Single Point Calibration :
initiate the calibration sequence with a
magnet, apply the gas, and wait for the
display to indicate that the unit has
completed the calibration. No tools or
adjustments are required.
Digital Display : indicates gas
concentrations, fault codes, calibration cues,
and is used for selecting relay options.
4 to 20 mA Output : transmits fault, over
range, calibration, and gas concentration
levels to a remote display, computer or other
readout device.
Relay Contacts (3 SPDT): provides a
discrete connection for a Warn, Alarm and
Fault indication to activate hazard
prevention or safety control devices (such as
fans, vacuum pumps, ventilation equipment,
etc.).
Multiple Modes : Normal, Fault,
Warn/Alarm, Calibration Check,
Calibration, Program Review, Relay
Options. Each mode is discussed in more
detail in later sections of this manual.
1.3 Ap pli ca tions
This is a partial listing of applications for the
Model S216A:
l
Refineries
l
Drilling Platforms and Rigs
l
Gas and Oil Production Platforms
l
Mud-Logging Operations
l
Desulfurization Facilities
l
Heavy Water Nuclear Facilities
l
Wastewater Treatment Plants
l
Chemical and Petrochemical Plants
l
Well Head Sites
l
Oil Recovery/Reinjection
1
Model S216A Introduction