OXO Timing Board O2 purity

Replacement timing board that has an O2 purity sensor for OXO-style oxygen concentrators, OXO6, OXO8, OXO10.

13 In Stock

SKU: OXO Timing Board O2 purity

$240.00

Description / OXO Timing Board O2 purity

Replacement timing board that has an O2 purity sensor for OXO-style oxygen concentrators, OXO6, OXO8, OXO10. Normally Open relay output closes when O2 purity falls below 85%. These are used in the TOX series concentrators as well as many of our ozone generator and injection skid systems.

The concentrator will never shut itself down due to purity or pressure issues. The only 3 ways of actually turning off the machine are by flipping the power switch, unplugging/disconnecting either the power cord or wiring harness from a terminal, or if the circuit breaker/thermal switch on the compressor were to trip. Outside of that, the unit will remain on, but will produce a loud audible alarm to notify the end-user of the issue. The LED lights on the 8400-1304 board correspond to the performance of the concentrator:

Flashing Green LED (Top LED) – Denotes that the machine is on & currently is building up its purity for use.

Solid Green LED – This will illuminate once the unit has reached at least 87% purity, and is good to begin using.

Flashing Yellow LED (Bottom LED; Alarm Function) – This indicates there’s a pressure issue; our circuit board’s pressure sensor has an operating range of 4.0 – 29.0 PSI. Should the pressure dip above or below that mark, this LED light will turn on & an alarm will let you know. Generally this means there’s either a leak somewhere, or something isn’t connected (like tubing).

Solid Yellow LED (Bottom LED; Alarm Function) – This light is designated to the oxygen purity of the system, and will turn solid yellow if the oxygen purity has dropped below 87%. This one has numerous causes, but can be usually traced back to either a low output compressor, a leak/disconnection, or an issue with the sieve bed itself.