Sierra Monitor Corporation 2001 manual Semiconductor-TypeSensor, Remote Alarm Available, Features

Model 200X Series

Gas Sensor Monitors

Model 2001 - Combustible Gas

Model 2003 - Hydrogen Sulfide

Model 2006 - Carbon Monoxide

The Model 200X Series are compact, solid- state, fixed-installation single alarm monitors designed for continuous area monitoring of Combustible Gas, Hydrogen Sulfide, or Car- bon Monoxide.

The Model 200X Series consists of three separate gas monitors, Model 2001 for Combustibles Model 2003 Hydrogen Sulfide and Model 2006 for Carbon Monoxide. A red LED (light-emitting diode) and audible alarm acti- vate when the concentration of gas exceeds the factory- set (and user-adjustable) level. A green LED indicator on the monitor shows that power is connected and it is a safe condition.

The standard configuration has a buzzer and normally operating open relay, a fail-safe normally operating closed relay is field selectable.

All the electronic circuitry needed to operate the moni- tor, except the DC input power, is contained in a com- pact unit. It may be mounted in any orientation. For a single-monitor installation and a local alarm, the accom- panying AC-to-DC power supply may be plugged into a standard AC source. The monitors accept 9 - 24 VDC.

Semiconductor-Type Sensor

A solid-state semiconductor-type sensor and associated electronic circuitry ensure trouble-free, long-term opera- tion. There are no pumps, filters or chemical cells to replace or maintain. Except periodic calibration to verify the alarm setting, no attention is required after installa- tion. The user may adjust the alarm level by using a different calibration gas concentration.

A sensor self-check feature will flash the LEDs on and off alternatively and sound an interrupted tone as a warn- ing should the sensor fail (open circuit).

Remote Alarm Available

If a remote alarm is desired, the Model 2102 Dual Chan- nel Alarm Panel can be connected up to 500 feet from the monitors.

Features

nSelf-check feature signals sensor failure

nOptional normally operating closed relay

nNo chemical cells to replace, no periodic maintenace other than routine claibration

nAll the electronic circuitry needed to operate the monitor contained compact unit, power suplly plugs into standard AC source

Benefits

nReliable operation

nFail-safe configuration

nMaintenance free operation

nQuick easy installation and connection to alarm panel

Sierra Monitor Corporation 1991 Tarob Court Milpitas, CA 95035 (408) 262-6611 (800) 727-4377 Fax: (408) 262-9042