Micro-fiber Optic Oxygen Transmitter

Microx TX3

The Microx TX3 is a precise micro fiber optic oxygen meter. It is used with oxygen microsensors based on a 140 µm optical fiber, which are available in different designs. This device is very versatile and can be applied whenever a small tip size and fast response time are needed. Microx TX3 is used for microsensors type PSt1 (detection limit 20 ppb, 0 – 50 % oxygen). It is a temperature compensated system and delivered with an external temperature sensor. The oxygen meter is connected to a PC either via USB or RS232 interface. With the included software the transmitter can be controlled and data collected. On top, programmable outputs and a trigger input for connection to a data logger are integrated.

Successor OXY-1 ST

  • For use with oxygen microsensors
  • Measures from 20 ppb to 50 % oxygen
  • Analogue in- and outputs
  • Software included


Oxygen sensorPSt1 (optical ST connector)
Temperature sensor1 x Pt1000 temperature connector (sensor included)
Temperature performancefrom 0 °C to + 50 °C, Resolution ± 0.1 °C, Accuracy ± 1.0 °C
Power supply18 VDC / 5 W (110 - 240 VAC, 50 /60 Hz, adapter included)
Temperature: operating /storagefrom 0 °C to + 50 °C / from -10 °C to + 60 °C
Relative humidityup to 80 % (non condensing)
Dimensions210 mm x 120 mm x 50 mm
Weight0.65 kg
Digital interfaceRS 232 interface (RJ 11 4/4 to DSub9, cable included)
USB Interface (RJ 11 4/4 to USB type A, transmitter adapted cable included)
External triggerTTL compatible with galvanic Isolation (BNC connector)
Analogue output specifications

Dual Outputs, 0 - 4095 mV, Resolution 12 bit, accuracy ± 10 mV (BNC connector)

10 mV represent
Oxygen1 % air saturation
Temperature1 °C
Phase0.25 °

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