Measurement Principle & Electrical PerformanceThe sensor forms a capacitor structure with porous alumina dielectric layer + gold film electrode. Water vapor permeates the gold film and is adsorbed on the alumina layer, changing the capacitance value linearly proportional to water vapor partial pressure to realize absolute humidity measurement. Built-in integrated thermistor achieves real-time temperature compensation to suppress temperature drift and measurement hysteresis. Each probe is individually calibrated with NIST-traceable standard moisture gas, featuring fast response speed (63% step response＜5s) and long-term calibration stability. The signal cable supports a maximum transmission distance of 610 meters, adapting to remote field installation layoutPanametria.... Operating dew point range covers -110℃ ~ +20℃, measurement accuracy ±2℃ in conventional low dew point interval.

Structural Design & Environmental AdaptabilityStandard wetted material is 316 stainless steel; Ni2 variant uses nickel alloy for anti-corrosion against acidic and sulfide process gas. Equipped with sintered metal filter screen to block dust, liquid mist and particulate pollutants and protect the sensitive film. Standard NPT thread interface is compatible with sampling pipelines, PRE-6-40 pressure regulators and CRL-10-H-H filter assemblies. With ATEX/IECEx intrinsically safe certification (EEx ia IIC T4), it can be used in Class I Division 1 explosive hazardous areas when paired with certified host instruments or safety barriers. The overall structure is vibration-resistant, and the internal sensing core undergoes high-low temperature aging screening to adapt to complex industrial site conditions.

Main Sub-models & Matching EquipmentCommon conventional models: M21R, MS29, MS32, Ni2Matching host equipment: MMS35 series analyzers, MTS6 transmitters, HygroPro transmitters, PM880 portable dew point testerMatching sampling accessories: PRE-6-40 pressure reducing valve, CRL-10-H-H sampling filter, MG101 dew point calibration deviceCore application scenarios: Generator hydrogen system dew point monitoring, natural gas pipeline moisture detection, semiconductor ultra-high purity gas monitoring, heat treatment protective gas measurement, air dryer efficiency monitoring, petrochemical process gas trace moisture detection.

Stability & Maintenance AdvantagesNo internal mechanical wearing parts, low long-term maintenance frequency and operation cost. Independent factory calibration ensures consistent measurement precision of batches; plug-type wiring simplifies on-site replacement operation and shortens system downtime. Original genuine probes effectively avoid measurement drift and host circuit overload damage caused by generic substitutes. Shockproof sealed packaging meets long-term spare parts storage requirements, and sensing performance remains stable under dry constant-temperature storage environments.