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.