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1. INTRODUCTION
This section provides an overview of the Model T700 calibrator, its features, and its
options.
1.1. T700 CALIBRATOR OVERVIEW
The Model T700 (typically referred to as T700) is a microprocessor-controlled calibrator
for precision gas calibrators. Using a combination of highly accurate mass flow
controllers and compressed sources of standard gases, calibration standards are provided
for multipoint span and zero checks. Up to four gas sources may be used.
The T700 can be equipped with an optional built-in, programmable ozone generator for
accurate, dependable ozone calibrations. The T700 also produces NO2 when blended
with NO gas in the internal GPT chamber. A multi-point linearization curve is used to
control the generator to assure repeatable ozone concentrations. An optional photometer
allows precise control of the ozone generator, both during calibrations and during Gas
Phase Titrations (GPT). To ensure accurate NO2 output, the calibrator with photometer
option measures the ozone concentration prior to doing a GPT.
As many as 50 independent calibration sequences may be programmed into the T700,
covering time periods of up to one year. The setup of sequences is simple and intuitive.
These sequences may be actuated manually, automatically, or by a remote signal. The
sequences may be uploaded remotely, including remote editing. All programs are
maintained in non-volatile memory.
The T700 design emphasizes fast response, repeatability, overall accuracy and ease of
operation. It may be combined with the Model 701 Zero Air Generator to provide the
ultimate in easy to use, precise calibration for your gas calibrators.
1.2. FEATURES
Some of the exceptional features of your T700 Dynamic Dilution Calibrator are:
Advanced T-Series electronics
LCD color graphics display with touch screen interface
Microprocessor control for versatility
Bi-directional USB (optional), RS-232, optional RS-485, and 10/100Base-T Ethernet
for remote operation
Precise calibration gas generation for Ozone, NO, NO
2
, CO, HC, H
2
S, SO
2
12 independent timers for sequences
Nested sequences (up to 5 levels)
06873B DCN6388