Ask The Experts Need Help? Ask The Expert Call us today on +44(0)1236 459020

LuminOx Sealed Optical Oxygen Sensor

The LuminOx Sealed Optical Oxygen Sensor Range Offers Users With Application Requirements To Only Measure Sample Gas At The Front Face Of The Sensor.

The LuminOx Sealed Optical Oxygen Sensor is developed and manufactured by SST, it is part of the LuminOx family, which is a range of factory calibrated oxygen sensors which measure ambient oxygen levels using the principle of luminescence quenching.

The LuminOx Sealed Optical Oxygen Sensor (LOX-02-S) is an extension to the standard range of LuminOx oxygen sensors. It is a similar diffusion type sensor like the original LOX-02 sensor. However, the LOX-02-S has a sealed base that is gas-tight, meaning only the face of the sensor with the protective membrane needs to be in the sample gas environment, externally leaving easy access to the pins of the sensor.

The patented technology allows SST to produce a range of sensors that provides low power operation, while offering a much longer lifetime than electrochemical and galvanic sensors.

The sensors each have an internal sensor for temperature and barometric pressure compensation, meaning the customer does not need to consider this in their design. It also communicates directly to the customers USART so no signal conditioning circuitry is required.

LuminOx is a completely solid state sensor and contains no lead or liquid electrolytes. It is therefore 100% RoHS compliant. It also has virtually no cross sensitivity, allowing it to be used in applications where other technologies are unreliable due to the particular mix of gases present.

The luminescence quenching principle measures the partial pressure of oxygen (ppO2). The internal barometric pressure sensor measurement along with the ppO2 measurement allows an oxygen concentration (O2%) value to be calculated. The USART output allows the sensor to communicate the values of O2%, ppO2, barometric pressure, internal temperature and a sensor status.

You can learn how to set up SST’s LuminOx Optical Oxygen Sensor here

Downloads

Ask the expert

Part Numbering Guide

TECHNICAL SPECIFICATIONS

Supply Voltage (Vs)

Supply Current (Is)

Output Type

Operating Temperatures

Storage Temperatures

Humidity

Barometric Pressure Range

4.5Vdc to 5.5Vdc

<7.5mA (streaming one sample per second)
<20mA Peak

3.3V TTL level USART

-30 to +60°C

-30 to +60°C

0-99% Rh (non condensing)

500-1200mbar

OUTPUT VALUES

Oxygen Range

Oxygen Pressure Range

Response Time

Accuracy

ppO2

Temperature

Pressure

O2

Resolution

ppO2

Temperature

Pressure

O2

Lifetime

0-25% O2

0-300mbar ppO2

T90 <30s (typical)

-

<2% FS

Indication only

±5mbar

Determined by ppO2 &
pressure accuracy

-

0.1mbar

0.1°C

1mbar

0.01%

>5 years

OUTLINE DRAWINGS

LOX-02-S Technical Drawing

ELECTRICAL INTERFACE

Lox connections
Pin

1

2

3

4

Designation

Vs (+5V)

GND (0V)

3.3V USART Sensor Transmit

3.3V USART Sensor Receive

FEATURES

  • Luminescence-based optical technology, NOT electrochemical
  • Factory calibrated
  • Extended temperature range
  • Maintenance free
  • Battery power usage
  • No need for additional electronics
  • Compact in size

BENEFITS

  • Compact, diffusion-type housing with sealed base
  • Long life, non-depleting technology
  • Low power
  • High accuracy
  • Low cost
  • RoHS compliant
  • Contains no hazardous materials
  • Full technical and application support available
  • This field is for validation purposes and should be left unchanged.