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1. INTRODUCTION, FEATURES AND OPTIONS
1.1. OVERVIEW
The Model T400 photometric ozone analyzer is a microprocessor-controlled analyzer
that measures low ranges of ozone in ambient air using 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 given distance.
The intensity of an ultra violate light is measured after it passes through a chamber,
called the sample cell, where it is absorbed in proportion to the amount of ozone present.
Every three seconds, a switching valve alternates measurement between a gas stream
containing ozone and a stream that has been scrubbed of ozone.
The analyzer also measures the ambient temperature and pressure of the gas being
measured. Using results of these measurements and the Beer-Lambert equation, the
T400 analyzer calculates the amount of ozone present in the sampler gas.
The T400 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 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.
1.2. FEATURES
Some of the exceptional features of your T400 photometric ozone analyzer include:
Ranges, 0-100 ppb to 0-10 ppm, user selectable
Single pass ultraviolet absorption
Microprocessor controlled for versatility
LCD Graphical User Interface with capacitive touch screen
Multi-tasking software allows viewing of test variables during operation
06870C DCN6332