Model 201RSP
The AMI model 201RS is the ideal solution for
measuring percent oxygen in a wide range of applications in a general
purpose environment. In a compact size, and at low cost, it provides a
comprehensive electronic package and sample system using AMI’s patented
cell block technology. In addition the 201RS 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.
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. 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 P-2 percent oxygen sensor is standard, but
other sensors can be provided for specific applications, such as those
using CO2 as the background gas, or for ranges up to 50% of oxygen.
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.
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.
