Model 2001RSP
The AMI model 2001RS is the ideal solution for
measuring trace oxygen in a wide range of applications in a general
purpose environment. In a compact size, and at low cost, it provides a
conprehensive electronic package and sample system using AMI’s patented
cell block technology. In addition the 2001RS uses internal surface
mount solenoid valves for sample/span gas selection and to seal off the
sensor in the event of loss of power.
Unlike competitive analyzers, AMI sensor replacement requires minimal
downtime due to the front panel sensor access and the patented AMI cell
block. Typical time from a one minute air exposure to 10ppm is under 15
minutes.
Trace oxygen analyzers are essentially leak
detectors. AMI’s patented cell block allows the analyzer to be built
with almost no possibility of internal leaking, with minimal volume and
with front-panel sensor access. All sample handling components – the
flow meter, needle valve and the surface mount span/sample selection and
seal-off solenoid valves – are integrated into two solid metal blocks.
The result is a highly reliable sample system with all necessary
components provided, and a very fast “come-down” time. When a sensor is
replaced, or calibrated on air with a 1 minute exposure (at 70°F), it
takes about 15 minutes for it to come down to below 10ppm. Competitive
analyzers typically take hours. As a result, although a span gas port is
provided, it is practical to accurately calibrate this analyzer on air
and have it back on line within a very short time.
The AMI T-2 trace oxygen sensor is inherently faster
than competitive sensors due to its metallic body and large active
electrode area. It is also naturally resistive to hydrogen sulfide up
to 10ppm H2S over its warrantied life, and may be used in samples
containing high levels of CO2 with no ill effects.
The sensor is immediately accessible on the front
panel of the analyzer, and can be replaced in seconds. It is not
necessary to expose the sensor to air unshorted while installing it as
is the case with most analyzers (which significantly increases their
come-down time).
The analyzer is built around the same electronic
architecture used in most of AMI’s advanced analyzers. A pair of
microprocessors, working together, provide a vast amount of
functionality, with the industry’s most intuitive front panel controls
married to the most complete PC user interface.
Alarm set points, the output range selection (range
over which the 4-20mA output and the alarm operate), and calibration are
controlled by press buttons. These features can be disabled via the
user interface program if desired for greater security.
The analyzer supports ModBus RTU over RS-485 for complete integration into a SCADA system.
Complete control over the analyzer’s operation, and
access to its many diagnostic features, are available via the AMI
software running on a PC, connected via a standard USB cable.Diagnostic features include up to fifteen days of
datalogging, calibration history for the previous five calibrations;
brown out and power up history, including memory errors if any; ambient
temperature, calibration history, complete sensor diagnostics including
oxygen and temperature exposure history.
