Sierra Monitor Corporation IT Series User manual

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sierra monitor corporation
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Gas and Flame Detection Systems
Solutions for Hazardous Gas Risk Management

Sierra Monitor Corporation
With over 25 years of experience and more than 15,000 installations
worldwide, Sierra Monitor is a leading designer and manufacturer
of product solutions that enhance the safety, eciency and
communications capabilities in both process control and building
automation industries. The primary product groups are:
t Hazardous Gas Detection Systems used in a wide variety
of industries, including chemical/petrochemical, waste-
water treatment, transportation and oil and gas industries.
t FieldServer Protocol Translator/Gateways and
ProtoCessor protocol coprocessors manufactured and sold by
the FieldServer Technologies division of Sierra Monitor
provide the interoperability desired in the process
control and building automation industries.
t Telecom Site Management Products used by most
telecommunications companies nationwide to monitor, manage
and control HVAC, safety and security in remote
environmental enclosures.
Sierra Monitor is an industry leader in its elds with a long lists of
“Firsts” including:
t First to utilize a microprocessor based controller for area safety
monitoring
t First to use digital two-way communication between the
controller and the sensor for improved diagnostics, easy
one-person calibration and multiplexing conguration
t First to use Modbus serial communication to enable the
hazardous gas detection system to link to the plant-wide
Distributed Control Systems
t First to provide a browser based graphical interface to a hazardous gas detection
system
t First to provide the building automation industry with a universal protocol gateway
supported by an extensive library of drivers for open systems and legacy devices;
t First to provide the telecommunications industry with a comprehensive facilities
environment controller
t First to provide a protocol coprocessor for OEM use to enable the manufacturer’s
product to meet the communications needs of its customer
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Hazardous Gas Detection
Hazardous gas and ame monitoring are an integral part of programs
designed to maintain personnel safety and protect the plant and the
environment. There are three major categories of hazardous gases:
tCombustible gases - posing a risk to personnel and facilities through
re or explosion
tToxic gases -creating both immediate and long term risk to personnel
tOxygen displacing gases - depleting workers’oxygen supply in
conned spaces
The gas and ame monitoring system required for a specic application
depends upon the scope of the hazardous gas risk. Important factors in
determination of level of protection needed include:
t Identify the hazards
t Assess risk of hazardous event
t Comply with laws and insurance requirements
t Consider liability and nancial risks
t Develop and implement a strategy of comprehensive event
response and prudent risk management
For applications where the risk is minor, a simple gas monitor, such as the
Model 20X or 200X, interfacing with a panel that sounds an alarm when
the concentration reaches the setpoint may meet the need. Applications
involving a higher risk generally require continuous output of gas
concentration from gas sensor modules such as the analog gas sensor
modules, to a display, printer or other indicating/control device. Sierra
Monitor has the experience and the products to meet any level of gas
monitoring necessary to meet the user’s safety requirements.
For more complex or larger applications, a comprehensive gas risk management system including
smart sensors provide a range of features necessary to meet this higher level of risk. The Sentry
system and the IT series sensors provide the user the intelligent data handling, ease of installation,
comprehensive alarm logic, low operating costs and reliable proven performance demanded by
today’s instrumentation and safety professionals.
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Sentry Gas Risk Management System
Sentry is a comprehensive, stand-alone gas monitoring
system that can also be easily integrated into PLC or DCS
systems. This feature-rich area safety monitoring system
can be congured to meet the user’s specic needs. Even
the basic Sentry system provides the user with multiplexed
wiring for reduced installation costs; two-way digital
signal between the sensor and controller for one-person,
non-intrusive calibration; extensive diagnostics and user-
friendly menu-driven display and common alarms.
Building upon this comprehensive package the user can
construct a system that caninclude 4-20mAinput, individual
and zone relays, battery backup, interface to other non-
Sentry devices, WebBrowser output and interface to other
systems utilizing Modbus or most other common process
control and building automation networks.
t User Congurable -to meet specic application needs
t Reliability – FM performance approval, TUV safety approval, continuous
diagnostics and EMI/RFI ltering
t Cost Eective - multiplexing wiring for lower installation costs and minimal
maintenance requirements
t Versatile - options include battery backup , graphical user interface, 4-20 mA for interface
to foreign devices, analog output and multiple protocol digital output
t User Simplicity - single person, auto-adjusting non-intrusive calibration, automatic
recognition of sensor types and browser based web interface
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sentry

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IT Series Smart Gas Detection Modules
The IT series (Information Technology) gas detection modules are the next
generation of components of Gas Risk Management Systems. As the name
implies, these sensors oer further advancement in information technology
and interoperability.
t Longest calibration intervals in the industry for low cost operation
t Multiple communication choices - 4-20 mA, Modbus RS-485,
SentryBus, integral relay outputs
tStand alone or system based operation for application exibility
tComprehensive menu based operation utilizing scrolling LED display
and user-friendly messaging
t Integral alarm relays or optional 8 amp control relays
t Flexible conguration parameters – including remote sensor,
remote alarm acknowledge, easy interface to plant-wide control systems
2-Wire Toxic Gas Sensor Modules
The Sierra Monitor 2-wire gas sensor module series provides the latest in
loop-powered gas detection loaded with features not normally found in
these easy to install sensor modules. The 2-wire series require minimal
maintenance, continuous self-diagnostics, scrolling 16-character display and
non-intrusive calibration. Key benets to the user of this best of class product
include:
t Low maintenance costs due to FM-approved, 180-day calibration
interval (the longest calibration interval in the industry)
t Low installation costs utilizing 4-20 mA, 2-wire, loop-powered design
t User-friendly operator interface with integral scrolling, menu-driven
LCD display
t Performance condence with FM performance and hazardous area
approvals for Class 1, Div. I, Group B, C, D.
t Fastest response time, highest accuracy and specications unmatched
in the industry
t Durability in tough applications with a stainless steel transmitter/sensor
enclosure
t Non-intrusive calibration to enable calibration without declassifying
the area
t Commonly used 4-20 mA signal output enables interface to typical
industrial and safety systems
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Gas Detectors and Monitors
Sierra Monitor provides a full range of gas and ame detectors
to meet instrumentation and safety requirements
Analog Gas Sensor Modules
Sierra Monitor analog gas sensor
modules provide continuous
trouble-free monitoring of
hazardous gas conditions to
protect your personnel and facility.
The modules provide an industry
standard 4-20 mA output that
can interface with single or multichannel controllers
and distributed control systems. Single Channel
Controllers provide the user with concentration
display, two independent adjustable alarm relays
and a fault relay.
Gas Alarm Monitors and Systems
Gas alarm monitors are single
unit detectors for Combustible
Gas, Hydrogen Sulde or Carbon
Monoxide in the PPM ranges
providing both audible and relay
output. The optional Alarm Panel
serves as a common alarm device
and power supply, accepting the input from two
individual gas monitors.
FieldServer Technologies
The FieldServer gateway from
the FieldServer Technologies
division of Sierra Monitor can
link Sentry and the IT Series to
other protocols including DF1,
Modbus TCP, DH+, Probus, Allen
Bradley ControlLogix, ControlNet,
DeviceNet, EtherNet/IP and many more.
Optical Flame Detection
Sierra Monitor optical ame
detectors, are top-of-the-line
models featuring dual and tri-
spectrum designs to provide a full
range of capability and provide
120 degree cone of vision.
Sierra Monitor is also a distributor of Spectrex Optical
Flame Detectors, oering a wide range of UV, UV/IR
and Triple IR Flame detectors with a 90 degree cone
of vision.
Other Gas Detectors and Analyzers
The Model 4400 In-Stream
Hydrogen Sulde Analyzer
continuously veries the H2S
content in natural gas collection
lines.
The Spectrex SafEye range of
“line-of-sight” Optical Gas Detectors feature a new
generation of Open Path IR and UV detection systems
for real-time monitoring of gaseous emissions over
large areas.
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other gas and
ame detectors
t Combustible Gas
t Oxygen Deciency
t Carbon Monoxide
t Chlorine
t Ammonia
t Ethylene Oxide
t Sulfur Dioxide
t Nitric Oxide
t Nitrogen Dioxide
t Hydrogen
t Hydrogen Chloride
t Hydrogen Cyanide
t Hydrogen Fluoride
… and more

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Associations and Approvals
Sierra Monitor’s Proven Quality
Sierra Monitor’s quality system is ISO 9001:2000 registered and key products have FM, UL, CE, SIL and Mil-
Spec approval. Sierra Monitor is also a UL508A approved panel shop. To ensure total satisfaction with the
products, Sierra Monitor emphasizes comprehensive customer service and support. This commitment to
the highest level of service extends beyond the sales cycle and throughout the product life cycle. Sierra
Monitor places a high priority on training the sales team to be responsive to all customers.
Sierra Monitor gas detection products are widely used in various industries including:
t Chemical and Petrochemical Plants
t Waste Water Treatment Plants
t Building Automation and Controls
t Energy Management
t Hazardous Waste Sites
t Oil and Gas Drilling
t Reneries
t Buses
t Fuel Loading Facilities
t Laboratories
t Fire Control Stations
t Mines
t Storage Tanks
t Parking Garages
t Compressor Rooms
t Food Storage Warehouses
t Landll/Brownelds Reclamation Sites
t Buildings near Landlls
t Gas Pipeline and Compressor Stations
t Semiconductor Manufacturing
t Solvent Recovery Systems
t Engine Test Facilities
t Oshore Oil Platforms
t Telecommunications Enclosures
t Wellhead Control/Monitoring
t Refrigeration Rooms
t Groundwater Reclamation
t Sulfur Recovery Plants
t Pipeline Transfer Stations
t Furnace Rooms
t Boiler Rooms
t Refrigeration Transports
t Health Care Facilities
t Battery Storage Areas
t Highway Tunnels
t Government and Military
t Pulp and Paper Plants
t Shipboard Toxic Gas Monitoring
t Transportation Maintenance Facilities
t Subways
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quality
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Sierra Monitor products are used worldwide to
maintain safety in plants and facilities.
Your Highest Expectation is Ours
Manufacturer’s representatives and regional sales
managers worldwide have the industry and application
skills to match products to the user’s specic needs.
After installation, the same team members have product
operation skills to assist with operator information and
problem solving requirements.
The comprehensive Sierra Monitor web site at
www.sierramonitor.com , provides 24 hour a day, 7 days
a week product and technical assistance information.
The SMC CD is an extensive technical data and
application assistance tool, and may be obtained from
any SMC sales oce or manufacturer’s representative.
1991 Tarob court,
Milpitas, CA 95035 USA
Toll Free: 800.727.4377
Phone: [phone]
Fax: [phone]
Email: [e-mail]
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