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Flange Mount Zirconium Dioxide Oxygen Sensor

The Flange Mount Zirconium Dioxide Oxygen Sensor is designed for easy sealing into a manifold or sampling chamber. Favoured by SST’s aerospace customers and in applications that require high temperature and pressure operation.

SST’s range of zirconium dioxide oxygen sensors use a unique closed loop measurement system. While the sensor continuously measures the oxygen level, a heartbeat signal is also generated providing an immediate warning of any failures.

Their long operating life is due to the non-depleting sensor cell technology. No reference gas is required and easy single point calibration can be performed in any known gas including fresh air.

The Flange Mount oxygen sensor offers 4 or 5 pin termination, a temperature range of -100 to 400⁰C and response time of less than 4 seconds. The oxygen sensor offers a linear output signal, a lifetime of up to 10 years (depending on the application) and covers an oxygen range 0.1 to 100% O₂.

All of SST’s zirconia oxygen sensors require interface electronics to operate which SST can provide (see related products). For high volume applications, we can work with you to design your own electronics, saving you time and money.

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Part Numbering Guide

TECHNICAL SPECIFICATIONS

Heater voltage
    Operating 4.35Vdc +/- 0.1Vdc (1.85A)
    Standby 2Vdc (0.85A)
Pump impedance at 700°C
Permissible gas temperature -100 to +400°C
Gas flow rate 0-10 m/s
Repetitive permissible acceleration 5g
Incidental permissible acceleration 30g

OUTPUT VALUES

Oxygen pressure range 2 mbar-3bar max.
Accuracy 5 mbar max.
Internal operational temp 700°C
Response time (10-90% step)
Warm up time (prior to sensor operation) 60s
Warm up time (from standby) 20s
Output stabilisation time ~ 180s

OUTLINE DRAWINGS

Flange_diagrams

ELECTRICAL INTERFACE

Flange_elec-connect

O2S-FR-T4-4P O2S-FR-T4-5P Designation
P P Pump
C C Common
H H1 Heater (+)
S S Sense
F H2 Heater (-)

FEATURES

  • Zirconium dioxide technology
  • Requires remote electronics to operate
  • Small sensing element
  • Low weight
  • Integral heating element
  • All stainless steel construction both internally and externally
  • Customer specific designs and connectors
  • Works at high oxygen presssures
  • Compact in size

BENEFITS

  • Long life, non-depleting technology
  • No reference gas required creating the ability to measure a wide oxygen range
  • No need for temperature stabilisation
  • Linear output signal
  • Can be used in high pressure and temperature environments
  • Simple recalibration if/when required
  • Full technical and application support available
  • This field is for validation purposes and should be left unchanged.