Company Confidential © 2005 All Rights Reserved. What is it? State-of-the-art: microprocessor-based, wall-mount gas monitor Easy installation and operation:

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