The ECONOX ControX V 2.0 is a compact display and control module designed for monitoring and regulating oxygen concentration in industrial heat treatment furnace atmospheres. It interfaces with zirconia-based oxygen probes — primarily ECONOX's own CarboProbe line, but also compatible with other manufacturers' probes — to provide real-time O₂ measurement for carbon potential control in carburizing, neutral hardening, and sintering processes.

What measurement and control functions does ControX V 2.0 provide?

The module simultaneously calculates and displays oxygen concentration in three selectable units — %O₂, ppm O₂, or logarithmic O₂ (log O₂) — alongside probe temperature in °C or °F and the raw millivolt O₂ signal from the zirconia cell. This multi-parameter display gives furnace operators a complete picture of atmosphere condition on a single screen. Optional PID control closes the loop between O₂ measurement and an actuated gas valve or other atmosphere control device, maintaining the target carbon potential or oxygen setpoint automatically. An optional purge function (for CarboProbe LT probes) supplies reference air to keep the probe measurement cell clean during extended operation.

How does ControX V 2.0 connect to furnace control infrastructure?

All connectors are located on the side of the compact housing for easy access in crowded control cabinets. X20 provides digital outputs for alarm and status signals, X21 provides analog outputs (e.g., 4–20 mA retransmission of O₂ or temperature for connection to PLCs and chart recorders), X10 drives the probe heater, and X11 accepts the O₂ and thermocouple inputs from the probe. A 110–230 VAC universal power supply input (F1) simplifies installation across different mains voltages. ECONOX SA, founded in 1984 in the Swiss Jura, patented the first ball-in-tube oxygen sensor in 1986.