The LuminOx flow-through optical oxygen sensor allows a sample stream of clean gas to be taken directly into the sensor, which can then be removed from the process environment.
Developed and manufactured by SST and part of a range of factory calibrated oxygen sensors known as the LuminOx family, the LuminOx flow-through optical oxygen sensor measures ambient oxygen levels using luminescence quenching. This is also known as fluorescence quenching by oxygen.
The LuminOx flow-through optical oxygen sensor (LOX-02-F) is an addition to the LuminOx range of oxygen sensors. As the base of the first LOX-02 sensor was not gas-tight, it was designed to be completely immersed in the sample gas environment.
In order to allow for a clean gas sample stream into a sensor which can be removed from the process environment, the flow-through housing style is sealed on the base. The flow-through housing provides better management of sample gas as well as further options for choosing where to situate the sensor.
SST can produce a series of sensors based on the non-depleting operating principle using this patented technology. As a result, LuminOx sensors have a longer lifetime than comparable competitor technologies, for similar applications, for example, galvanic sensors.
Containing two additional internal sensors to measure barometric pressure compensation and temperature, customers do not need to consider their inclusion in their designs when using the LuminOx oxygen sensor. As it directly communicates to the customer’s USART, no additional signal conditioning circuitry is necessary.
Containing no lead or liquid electrolytes, the LuminOx sensor is a completely solid-state sensor, and so is 100% RoHS compliant. In addition, it has practically no cross sensitivity, meaning it can be used in applications where other technologies are less reliable as a result of the mix of gases present.
Combining the partial pressure of oxygen (ppO2) measured by the luminescence quenching principle alongside the internal barometric pressure measurement, the oxygen concentration value (O2%) can be calculated. The measured values of barometric pressure, O2% and internal temperature, as well as the status of the sensor can be communicated using the USART.
- Luminescence-based optical technology, NOT electrochemical
- Factory calibrated
- Sealed base with flow-through housing
- Wide temperature range
- Battery power usage
- No maintenance
- No additional electronics required
- Compact in size
- Multiple integration options using the flow-through and sealed housing
- Low power
- Non-depleting, long life technology
- Rapid response
- High accuracy
- RoHS compliant
- Low cost
- Connects directly to a microcontroller – no circuitry required
- Full technical and application support
- Contains no hazardous materials
|Supply Voltage (Vs)
||4.5 Vdc to 5.5 Vdc
|Supply Current (Is)
||<7.5 mA (streaming one sample per second)
<20 mA Peak
||3.3 V TTL level USART
||-30 to +60 °C
||-30 to +60 °C
||0-99% Rh (non condensing)
|Barometric Pressure Range
|Maximum flow rate
|Oxygen Pressure Range
||T90 <30 s (typical)
||Determined by ppO2 & pressure accuracy
||Vs (+5 V)
||GND (0 V)
||3.3 V USART Sensor Transmit
||3.3 V USART Sensor Receive