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InPro 6850i G Amperometric Oxygen Sensor

Amperometric Oxygen Sensor can be installed in harsh environments and hazardous area applications

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Intelligence and robustness for best performance.

METTLER TOLEDO’s InPro 6850i G as intelligent all-rounder uses the new 3-electrode system. A separate platinum anode increases the signal stability for extended maintenance intervals.

These sensors can be installed in harsh environments and hazardous area applications. With the integrated ISM technology, they monitor themselves for wear and can pre-emptively determine the time to the next maintenance in real time.

Thanks to the integrated ISM technology with Plug and Measure capability, installation is much easier. New possibilities for maintenance planning are possible thanks to automated self diagnosis and asset management. Together with the iSense, always stay one step ahead of maintenance tasks.

Features and Benefits

Reduced service time Thanks to the easy-to-replace membrane body and quick-disconnect interior body.
Long sensor lifetime Durable and rugged sensor design for increased resistance to harsh environments.
Installation in hazardous zones ATEX certificate: SEV 14 ATEX 0169 X, Ex ia IIC T6/T5/T4/T3 Ga/Gb, Ex ia IIIC T69oC/T81oC/T109oC/ T161oC Da/Db.
IECEx Certificate of Conformity: IECEx SEV 14.0026X, Ex ia IIC T6/T5/T4/T3 Ga/Gb, Ex ia IIIC T69oC/T81oC/T109oC/ T161oC Da/Db.
FM approval: IS/ I, II, III /1 /ABCDEFG /T6.
High measurement stability The new 3-electrode principle with its separated platinum anode for higher signal stability.
Enhanced diagnostics Permanent sensor monitoring with ISM technology reduces the risk of sensor failures.
In-situ measurement Measurements are fast and are performed directly in the process stream.
Accurate Insensitive to moisture and dust, the membrane-covered sensing element is permeable to oxygen, not liquids.
Predictive Maintenance The DLI (Dynamic Lifetime Indicator) assesses in real-time the remaining lifetime of the sensor.

Specifications & Spare Parts

Specifications
Accuracy ≤ ± [1% + 0.1 Vol-%]
Measuring pressure resistance 0.2 to 9 bar (2.9 to 130 psi absolute)
Operating range 0.1 Vol-% O₂ to 100 Vol-% O₂
90% response time at 25°C (77°F) ≤ 20 s (N₂ → 15 Vol-% O₂)
Measuring principle Polarographic Clark electrode
Sensor body 316L stainless steel or C22 (titanium on request)
Membrane material PTFE / Silicone (reinforced with steel mesh)
O-ring material Silicone or Kalrez®
Mechanical pressure resistance Maximum 12 bar (174 psi absolute)
Certificates
SEV 14 ATEX 0169 X Ex ia IIC T6/T5/T4/T3 Ga/Gb
Ex ia IIIC T69°C/T81°C/T109°C/T161°C Da/Db
IECEx Certificate of Conformity IECEx SEV 14.0026X
Ex ia IIC T6/T5/T4/T3 Ga/Gb
Ex ia IIIC T69°C/T81°C/T109°C/T161°C Da/Db
FM approval IS/ I, II, III /1 /ABCDEFG /T6