Teledyne GFC 7001EM operation manual Introduction, GFC 7001E Family Overview

Introduction Model GFC7001E Carbon Dioxide Analyzer

1.INTRODUCTION

1.1.GFC 7001E FAMILY OVERVIEW

The family includes the GFC 7001E and the GFC 7001EM Gas Filter Correlation (GFC) Carbon Monoxide Analyzer. The GFC 7001E family of analyzers is a microprocessor-controlled analyzer that determines the concentration of carbon monoxide (CO) in a sample gas drawn through the instrument. It uses a method based on the Beer-Lambert law, an empirical relationship that relates the absorption of light to the properties of the material through which the light is traveling over a defined distance. In this case the light is infrared radiation (IR) traveling through a sample chamber filled with gas bearing a varying concentration of CO.

The GFC 7001E/EM uses Gas Filter Correlation (GFC) to overcome the interfering effects of various other gases (such as water vapor) that also absorb IR. The analyzer passes the IR beam through a spinning wheel made up of two separate chambers, one containing a high concentration of CO, known as the reference, and the other containing a neutral gas known as the measure. The concentration of CO in the sample chamber is computed by taking the ratio of the instantaneous measure and reference values and then compensating the ratio for sample temperature and pressure.

The GFC 7001E/EM Analyzer’s multi-tasking software gives the ability to track and report a large number of operational parameters in real time. These readings are compared to diagnostic limits kept in the analyzers memory and should any fall outside of those limits the analyzer issues automatic warnings.

Built-in data acquisition capability, using the analyzer's internal memory, allows the logging of multiple parameters including averaged or instantaneous concentration values, calibration data, and operating parameters such as pressure and flow rate. Stored data are easily retrieved through the serial port or optional Ethernet port via our APICOM software or from the front panel, allowing operators to perform predictive diagnostics and enhanced data analysis by tracking parameter trends. Multiple averaging periods of one minute to 365 days are available for over a period of one year.

Some of the common features of your GFC 7001E family of analyzers are:

Microprocessor controlled for versatility

Multi-tasking software allows viewing of test variables during operation

Continuous self checking with alarms

Bi-directional RS-232 for remote operation

Digital status outputs indicate instrument operating condition

Adaptive signal filtering optimizes response time

Gas Filter Correlation Wheel for CO specific measurement

GFC Wheel guaranteed against leaks for 5 years

Temperature & Pressure compensation

Internal data logging with 1 min to 365 day multiple average

Remote operation when used with Teledyne APICOM software

GFC 7001E FEATURES:

Ranges, 0-1 ppm to 0-1000 ppm, user selectable

14-meter path length for sensitivity

GFC 7001EM FEATURES:

Ranges, 0-1 ppm; Max: 0-5000 ppm, user selectable

2.5 meter path length for dynamic range

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