Rapidox 4100 Description

The Rapidox 4100 oxygen gas analysers use galvanic cell primary elements and can measure oxygen concentrations from 100% to 0.1ppm (parts per million) in a variety of gases. The instruments are micro-processor-controlled and provide exceptional performance and versatility.

A large multi-digit, auto-ranging LCD shows the concentration and user-adjustable parameters.  Two alarm channels, user-programmable to be high, low or off, each provide one set of volt-free changeover contacts, and can be set to any concentration within the span of the instrument.

A user programmable analogue output can be set to one of several ranges. A choice of 0 to 5v or 4 to 20mA is provided at the time of ordering.

Several versions of sensor are available, enabling the analyzer to operate at optimum performance in a diverse range of applications. These include a sensor suitable for operating in the presence of high concentrations of mildly acidic gases such as carbon dioxide and hydrogen sulphide.  See the chart below for the options available:

Please note that the L and H cells are sensitive to over exposure of oxygen and must therefore not be exposed to air for long periods of time.  As a result the L & H cell versions of the Rapidox 4100 are specially fitted with electrical solenoid valves that trap the test gas in the sensor chamber.  These units must be purged with inert gas before switching them off to ensure full sensor life expectancy is achieved.