company confidential © 2005 all rights reserved. what is it? state-of-the-art:...
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Company Confidential© 2005 All Rights Reserved
What is it?
State-of-the-art: microprocessor-based, wall-mount gas monitor
Easy installation and operation: just apply power and these units are ready for operation
Versatile: Perfect for a variety of industrial applications
Standard Features
Large, 1.75”, four-digit LED display
Three levels of alarm
Large LED alarm indicators
Internal relay contacts
Failsafe fault relay output
Diagnostics that appear on the display
Audible alarm
Standard 4-20 mA analog output – 2-wire
Enclosure Design
Common enclosure for all gases / applications
Rugged 14 gauge steel
NEMA 4X design
Epoxy-coated paint
Gas Type identified on front panel
Sensor is bottom-mounted
Audible Alarm Options
70 db Piezo Buzzer Alarm
85 db Federal horn option
All alarms are flush and side mounted
Horn reset switch is front mounted
Visual Alarm Options
Red and Yellow Alarms are available
Strobes are Top-Mounted
Relay Outputs
Normally-energized Form C fault relay
FAULT, CAUTION, WARNING and ALARM relays
Selectable latching or non-Latching operation
5 amp @ 120 VAC contact rating
Design and Operation
Designed with the sensor mounted external to the enclosure●Easily replaced by simply unscrewing the sensor
housing and removing the plug-in sensor
Factory calibrated●Ready for installation and immediate operation
Uniquely designed●Eliminates all potentiometers or any other type of
internal adjustment
Shipped with a unique Sensorgard● Protects the sensor from dirt, water, etc., while allowing gas to
penetrate into the unit● Acts as a baffle in windy environments
Gases
Gas Type Range Minimum Detectability
Carbon Monoxide - CO 0-100 ppm 1 ppm
Carbon Monoxide - CO 0-500 ppm 2 ppm
Oxygen - O2 0-25% 0.10%
Hydrogen Sulfide - H2S 0-10 ppm 0.1 ppm
Hydrogen Sulfide - H2S 0-50 ppm 0.1 ppm
Hydrogen Sulfide - H2S 0-100 ppm 1 ppm
Chlorine - CL2 0-5 ppm 0.1 ppm
Chlorine Dioxide - CLO2 0-3 ppm 0.1 ppm
Sulfur Dioxide - SO2 0-25 ppm 1 ppm
Nitric Oxide - NO 0-100 ppm 1 ppm
Nitrogen Dioxide - NO2 0-10 ppm 0.1 ppm
Hydrogen Cyanide - HCN 0-50 ppm 1 ppm
Hydrogen Chloride - HCL 0-50 ppm 1 ppm
Ethylene Oxide - ETO 0-10 ppm 0.1 ppm
Combustible Gas – Natural Gas and H2 0-100% LEL 1% LEL
Combustible Gas – Petroleum Vapors 0-100% LEL 1% LEL
Combustible Gas – Solvents 0-100% LEL 1% LEL
Volatile Organic Compounds 0-1500 ppm 1 ppm
Advanced Features
Date of last successful calibration recorded within the Monitor
“Replace Sensor” indication when sensor nears its end-of-life
Real-time clock for time and date stamping of events
Logging of minimum, maximum and average gas concentrations over predetermined time intervals
Selectable lock-out of output signals during calibration to inhibit alarms and control actions
Calibration
Internal keypad or non-intrusive initiation
No manual adjustments
Programmable
Calibration documented
Calibrator
Simple 3-button operation:
Zero
Calibrate
Address
Controller
Set alarm levels
Change span-gas values
Display date of last calibration
Display minimum, maximum and average gas values
Accesses all features:
Internal Pump
Sampling Pump
Allows sample draw up to 150 ft. from the Monitor
Standard
Bottom Mount Sensor
70 db Piezo Buzzer Alarm
Diffusion Sampling
NEMA 4X Metal Enclosure
SD2
Bottom Mount Sensor
70 db Piezo Buzzer Alarm
Diffusion Sampling
No Internal Relays
NEMA 4X Metal Enclosure
Class I, Division 2 Groups B,C,D
Plus
Bottom Mount Sensor
85 db Federal Alarm Horn
Diffusion Sampling
NEMA 4X Metal Enclosure
Two top-mounted strobes (Yellow and Red) are activated from the Warning and Alarm Levels
Advanced
Bottom Mount Sensor
85 db Federal Alarm Horn
Internal Pump sampling system for remote sample draw
NEMA 4X Metal Enclosure
Two top-mounted strobes (Yellow and Red) are activated from the Warning and Alarm Levels
Applications
Refineries
Chemical and Petrochemical Facilities
Steel MillsWater and Wastewater
Mining
General Industry