Datasheet Contact Us Moisture and Temperature in Oil Transmitter Series MMT330 for Hydraulic and Lubrication Systems and Transformer Oil Monitoring Vaisala HUMICAP® Moisture and Temperature Transmitter MMT330 series enables fast and reliable detection of moisture in oil in central lubrication systems, hydraulic systems and power transformers. The series is also compliant with DNV GL 2.4 type approval (Class B). There are three probe types to enable various types of installations: MMT332 for high pressure installations MMT337 for tight spaces with a thread connection MMT338 for pipeline installations Features Continuous online measurement of moisture in oil Installation through ball valve. No need to shut down the process. Proven Vaisala HUMICAP® sensor, used for over 15 years in oil application Easy field calibration and maintenance – compatible with Vaisala HUMICAP® Hand-Held Moisture Meter for Oil MM70 Online, real-time detection of moisture in oil without sampling. Integrated data logging, with over four years of measurement history Traceable calibration to national standards (certificate included) Multi-year Calibration Care agreement option to ensure as-good-as new accuracy for years + Show more Key Benefits Easy to install and operate Installation through ball valve. No need to shut down the process. Fast Online, real-time detection of moisture in oil without sampling. Reliable Tells the true margin to water saturation point in all changing conditions, taking into account e.g. temperature changes and aging of oil. Downloads Datasheet (4.15 MB) MMT330 Series Moisture and Temperature Transmitters for Oil Download the Datasheet Datasheet: MMT330 Series Moisture and Temperature Transmitters for Oil (4.15 MB) Manual: MMT330 User Guide in English (3.97 MB) Order Form: MMT330 Order Form Global (62.02 KB) Application Note: Online Moisture Monitoring for Power Transformers (76.3 KB) Application Note: Measuring Moisture in Oil (118.73 KB) Brochure: Outages Happen 24/7 – So Should Monitoring (1.92 MB) Certificate: DNV Type Approval Certificate for Vaisala HMT330, DMT340, MMT330 and PTU300 (134.85 KB) Success Story: Ergon Energy Optimizes its Asset Utilization with Online Transformer Monitoring (187.16 KB) All downloads Customer Stories Success Story Hydroelectric Plant Benefits from Early Detection of Moisture in Oil World’s largest hydroelectric plant implemented real-time water-in-oil detection to increase availability of its generating units. Itaipu... Read more Success Story Moisture Management in Power Transformers Moisture management is one of the greatest challenges today in the maintenance of oil insulated high voltage transformers. TRANSEC UK Ltd... Read more Success Story On-line Measurement of Oil Gives up-to-date Information for Operators The Propulsion Unit of ABB Marine and Turbocharging relies on Vaisala to measure the moisture in lubrication oil on-line. The Vaisala HMP228... Read more Success Story Ergon Energy Optimizes its Asset Utilization with Online Transformer Monitoring Australian utility Ergon Energy supplies electricity to around 700,000 customers in the state of Queensland. Its vast operating area covers over... Read more Success Story Kanden Engineering selects Vaisala for Insulating Oil Measurements The Oil Division of Kanden Engineering chose Vaisala’s HUMICAP® Moisture and Temperature Transmitter Series for Oil MMT330 for performance, ease... Read more Services Accredited Calibration Calibration Care Agreement Need support? Need to calibrate? Sign up for news Contact us
Datasheet (4.15 MB) MMT330 Series Moisture and Temperature Transmitters for Oil Download the Datasheet
Success Story Hydroelectric Plant Benefits from Early Detection of Moisture in Oil World’s largest hydroelectric plant implemented real-time water-in-oil detection to increase availability of its generating units. Itaipu... Read more
Success Story Moisture Management in Power Transformers Moisture management is one of the greatest challenges today in the maintenance of oil insulated high voltage transformers. TRANSEC UK Ltd... Read more
Success Story On-line Measurement of Oil Gives up-to-date Information for Operators The Propulsion Unit of ABB Marine and Turbocharging relies on Vaisala to measure the moisture in lubrication oil on-line. The Vaisala HMP228... Read more
Success Story Ergon Energy Optimizes its Asset Utilization with Online Transformer Monitoring Australian utility Ergon Energy supplies electricity to around 700,000 customers in the state of Queensland. Its vast operating area covers over... Read more
Success Story Kanden Engineering selects Vaisala for Insulating Oil Measurements The Oil Division of Kanden Engineering chose Vaisala’s HUMICAP® Moisture and Temperature Transmitter Series for Oil MMT330 for performance, ease... Read more
