GE MISP2 Aluminum Oxide Trace Moisture Probe
July 28, 2026

GE MISP2 Aluminum Oxide Trace Moisture Probe

GE MISP2 (MIS Probe 2) is an aluminum oxide trace moisture sensing probe developed by GE Panametrics. It measures trace moisture and dew point inside industrial gas and non-aqueous liquid media, matches moisture.IQ and PM880 analyzers to deliver accurate moisture data for closed-loop process monitoring.

Description

  • Measurement Principle & Core Electrical Performance

    This probe adopts mature aluminum oxide thin-film sensing principle, converting medium moisture concentration variation into standard electrical signals for host analysis calculation. Equipped with built-in microelectronic processing module with 16-bit high resolution, it supports ppb-level ultra-low trace moisture capture and real-time electronic self-compensation to reduce long-term drift value. The built-in NTC thermistor and optional pressure sensing element synchronously collect process temperature and pressure data to automatically revise dew point calculation errors caused by working condition fluctuations. Calibration data is stored in non-volatile EEPROM, retaining all calibration parameters after power failure without repeated calibration work. It features fast response speed, reaching 90% stable measured value within 10 seconds, with measurement precision of ±2% reading or ±2 ppmv (whichever is larger) to guarantee long-term measuring consistency. Twisted-pair ordinary cables are applicable for wiring, supporting up to 914 meters of transmission distance between probe and host without signal attenuation.

  • Structural Design & Environmental Adaptability

    The wetted part is made of stainless steel with standard 3/4 inch threaded interface and optional VCR installation structure for direct pipeline threaded assembly. Internal circuit boards are coated with anti-moisture and anti-corrosion protective coating, adapting to complex working conditions of chemical plants, gas stations and power workshops. The probe withstands process temperature ranging from -110°C to 70°C and working pressure up to 345 bar, with intrinsic safety certification for flammable and explosive gas environments. The overall sealed structure prevents process medium from corroding internal sensing chips, and resists pipeline vibration, airflow impact and industrial electromagnetic interference from surrounding motors and frequency converters. The compact cylindrical layout reduces installation space occupation and facilitates disassembly during periodic calibration and maintenance.

  • Matched Equipment & Industrial Application Fields

    It is the core supporting sensing component for GE moisture.IQ online moisture analyzers and PM880 portable hygrometers. Widely applied in natural gas pipeline dew point monitoring, power plant generator hydrogen moisture detection, compressed air drying system monitoring, pharmaceutical production process gas purification, aerospace medium detection and petrochemical process gas quality controlBaker Hugh.... When the original probe has data drift, slow response or medium corrosion failure, the original MISP2 probe can realize plug-and-play replacement, shorten instrument downtime and avoid out-of-standard risks of industrial process gas quality.

  • Stability & Daily Maintenance Advantages

    Each MISP2 probe undergoes NIST traceable calibration, air tightness test and long-time aging stability inspection before delivery to ensure uniform performance among batches. Field maintenance only needs regular external inspection of the probe shell and regular offline calibration according to the factory cycle standard, with low daily maintenance cost and operation threshold. Original GE probes effectively prevent measuring deviation and host circuit load abnormality caused by generic alternative sensors. Shockproof sealed factory packaging is suitable for long-term warehouse spare parts storage, and sensing performance will not produce obvious attenuation under dry constant-temperature storage environment, with stable service life meeting long-cycle continuous online monitoring requirements of industrial analysis systems.


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