GE MISP-2R-T20 belongs to the mature MIS Probe 2 moisture detection product platform of Baker Hughes GE Panametrics. Coding definition: MISP stands for Moisture Image Series probe; 2 represents the second-generation optimized circuit structure; R stands for standard threaded process connection; T20 means integrated built-in process temperature thermistor with fixed temperature detection configuration. The core detection principle relies on the thin-film aluminum oxide moisture sensing chip, whose capacitance value changes linearly with water vapor partial pressure inside gas media, converting trace moisture content into measurable electrical signals for host analysis and calculation.

The front end of the probe adopts sintered stainless steel porous protective cover structure. The porous filter can effectively intercept solid dust, oil mist and aerosol impurities carried in industrial gas, preventing the fragile alumina sensing film from being polluted and failing in response, greatly extending the service cycle of the core sensing component. The main body of the probe is made of corrosion-resistant stainless steel, adapting to slightly corrosive gas environments such as natural gas, flare gas and process tail gas in petrochemical plants and refineries. The built-in NTC thermistor performs real-time collection of medium temperature data, cooperates with the host algorithm to automatically complete temperature drift correction, and eliminates measurement errors caused by pipeline temperature fluctuations during long-term continuous online operationBaker Hugh....

The probe’s built-in micro-processing unit carries 16-bit high-precision signal resolution, realizing ultra-low ppb-level trace moisture measurement, with standard calibration range covering -80°C ~ +20°C frost point/dew point. It supports long-distance signal transmission via ordinary twisted-pair cables, and the maximum wiring distance between the probe and the analysis host can reach 914 meters, meeting the layout requirements of scattered pipeline measurement points in large factories. The tail aviation sealed connector has good shielding performance to resist electromagnetic interference from compressors, frequency converters and power distribution equipment in industrial sites to ensure stable signal outputBaker Hugh....

This probe has obtained EEx ia IIC T4 intrinsic safety explosion-proof certification, which can be safely deployed in Zone 0, Zone1 explosive hazardous areas when matched with qualified safety barriers, and the ambient applicable temperature reaches up to 80°C, complying with ATEX BAS01ATEX1096X certification specifications. The process interface adopts standard straight thread with O-ring sealing structure, supporting direct threaded installation on gas pipelines or sampling pipelines without complex auxiliary fixtures, with low installation and commissioning difficulty.

Each MISP-2R-T20 is calibrated with NIST-traceable standard moisture gas before factory delivery, with formal factory calibration certificate attached to the product. There are no mechanical moving parts inside the probe assembly. Daily maintenance only needs regular inspection of the front filter for blockage and annual calibration verification according to the gas cleanliness. When the sensing performance decays, only the internal alumina chip needs to be replaced instead of the whole probe, effectively reducing enterprise spare parts cost input.

It is widely applied to dry compressed air monitoring in electronics and pharmaceutical industries, natural gas pipeline trace moisture detection, power station SF6 insulating gas moisture monitoring, heat treatment furnace protective gas quality analysis and petrochemical process gas dehydration effect monitoring scenarios, providing accurate dew point data basis for process safety control and gas quality management.