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Panametrics aluminum oxide moisture probes have set the standard of performance and value in industrial moisture measurement for more than 40 years. In use, M Series moisture probes are coupled to Panametrics hygrometer consoles by an interconnecting cable. Ease of use, wide measurement range and rigorous calibration standards make these systems the preferred choice for industrial moisture measurement worldwide. Superior Performance Film thickness of the oxide layer is critical to the performance of this type of sensor. GE manufactures sensors with an oxide film thickness that causes them to exhibit true absolute humidity, rather than relative humidity response. This critical film thickness also gives the M Series probe quick response and exceptional calibration stability.

Rigorous Calibration Standards Traceable to NIST/NPL 

Each Panametrics aluminum oxide sensor is individually calibrated in one of the world’s most advanced moisture calibration facilities. Developed over several decades, this facility uses flow, temperature and pressure measuring devices, traceable to NIST/NPL, to generate precisely known moisture concentrations to which each probe is exposed during the calibration process. All data is gathered and stored by a dedicated computer system. Calibrations are repeated over a period of months to determine the stability of each individual moisture probe. Only those probes that meet GE’s demanding specifications for accuracy and stability are shipped to customers

Installation Flexibility

 M Series probes are designed to be located at the process, exactly where the measurement is needed. Cable length between the probe and hygrometer may be 2000 ft (610 m) or more. Operating temperature range is –166°F to 158°F (–110°C to 70°C), pressure range is from vacuum up to 5000 psig (345 bar), and no minimum flow rate is required. Sample cells make M Series probes easy to install, and the cells are available in general purpose, Type 4 weatherproof, and Type 7 explosion-proof housings.