SYSTEM CONFIGURATION

 

The Mini-OX can be configured to output measuring ranges of 0 – 25% O₂ and 0 – 100% O₂; the entire measurement range is linear in both cases.

 

NOTE:Factory default is 0 – 25% O₂ with linear4-20mA and 0-10V_DC outputs.

When configured for 0 – 100% O₂, the analog output ranges can becustomized to suit the application. Refer to Setting the Calibration Type and Measurement Range.

 

The outputs can be configured to either 4 – 20mA and 0 – 10V_DC or RS232. Refer to Setting the Output Type below.

 

NOTE:All outputs are referenced to the system GND.

 

A digital 3.3V_DC logic output cycles at the same frequency as the electrochemical pumping action of the oxygen sensing cell during normal operation, thus providing a real-time sensor health check. If the output ceases to cycle, the sensor has entered a start-up or error state. This provides fault proof operation.

NOTE:The digital output is also used during the calibration process to indicate the interface status.

A green on-board LED mirrors the CYCLE output and can be used to visually determine the sensor status or during the calibration process. A red LED indicates the unit has power applied.