Teledyne 3350 - Microprocessor based control room monitor for personnel safety - Manual (Page 7)

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Alarm Oxygen Monitor Introduction 1
Teledyne Analytical Instruments
Introduction
1.1 Overview
The Teledyne Electronic Technologies Analytical Instruments (TET/AI)
Model 3350 is a microprocessor-based Oxygen Alarm Monitor for real-time
measurement of the oxygen content of the atmosphere surrounding its sensor.
The Model 3350 standard instrument is configured to run from an AC
power source and is also available with continuous charging, DC battery backup
option. The rated battery life is approximately 17 hours configured in failsafe
mode and 48 hours in non-failsafe mode.
The instrument is designed as a safety monitor. However, it is the responsi-
bility of the user to establish whether or not the total system or instrument,
environment, alarm components and any other relevant devices will actually
assure safety in his/her particular circumstances.
1.2 Main Features of the Analyzer
• Accurate readings of oxygen content at the standard 0-25% range.
(Consult factory for other ranges)
• Large, bright, light emitting diode meter readout.
• Nylon cell holder.
• Simple pushbutton span controls.
• Advanced Micro-fuel Cell, for percent analysis, has a 12 month
warranty.
• Unaffected by oxidizing gasses.
• Fast response and recovery time.
• Microprocessor based electronics: 8bit CMOS microprocessor with
on-board RAM and 16KB ROM.
• Air calibration range for convenient spanning at 20.9% oxygen.