Calisto R9
High-accuracy & low-maintenance dissolved gas analysis (DGA) monitor built for years of service
A New Way for Infrared DGA
The Calisto® R9 brings something new to the market of DGA monitors: long-term accuracy without calibration gas cylinders to manage. This breakthrough is achieved by combining a novel IR gas measurement technology with a game-changing calibration system that uses water vapor as a calibrant to maintain accuracy over time.
Calisto R9 combines these innovations with robust design features that have been continuously improved through many years of serving Calisto customers around the world. These include membrane extraction to keep the gas measurement system free of oil and oil vapors, our sludge-tolerant pump that eliminates the need for oil filtration, and precision thermal controls for DGA accuracy.
Measures All Key Fault Gases Plus Moisture
Hydrogen
Carbon Monoxide
Methane
Acetylene
Ethylene
Ethane
Carbon Dioxide
Oxygen
Nitrogen
Moisture
Water-Vapor Based Automated Calibration
Uniquely features on-board automatic calibration with water vapor, which maintains accuracy throughout the lifetime of the monitor. The system’s ability to stay calibrated without the need to replace compressed gas cylinders provides premium DGA performance with very low maintenance time, cost & effort.
Infrared Method for Early Fault Detection
and Accurate Diagnosis
Stable and sensitive gas measurements via our patented Differential Infrared Photoacoustic Spectroscopy (DIPAS) method, and proprietary thermal conductivity technology (for H2). Sensitive to small dissolved gas concentrations for early fault detection, accurate diagnosis and informed risk assessment.
Membrane Gas Extraction
Proven vacuum-tolerant membrane extraction prevents oil and oil vapors from contaminating the gas measurement system over its lifetime and even during transformer or monitor maintenance.
Intuitive User Interface
The R9 Software UI runs with any common web browser and streamlines monitor set-up and provides clear and intuitive views of historic readings and alarm settings. It’s easy to port the data to INSIDEVIEW® or doblePRIME™ for in-depth DGA diagnostics.
Intuitive User Interface
The R9 Software UI runs with any common web browser and streamlines monitor set-up and provides clear and intuitive views of historic readings and alarm settings. It’s easy to port the data to INSIDEVIEW® or doblePRIME™ for in-depth DGA diagnostics.
Intelligent Bubble Trap System
Prevents risks associated with gas bubbles entering the transformer tank during installation and use. To protect the dielectric system, air and gas bubbles are auto-removed from the oil before returned to the transformer. This simplifies installation, which typically takes less than 2 hours.
Reliable & Secure
Designed and tested to exacting cyber security assessments and international standards for EMI/EMC, safety, environmental and vibration.
Calisto R9 Overview Video
ALL CALISTO ONLINE DGA MONITORS
Calisto Product Line Production Facility
Innovation by Design; Reliability via Quality Systems. Each Calisto unit undergoes continuous performance testing, functioning as it will in the field, and must meet our stringent performance criteria before leaving our site.
Accuracy By Design
Calisto® features best-in-market accuracy bench-marked by clients, laboratories, and industry working groups — ensuring the reliability of the DGA results they provide.
Early Detection
Market-leading lower detection limits and a very broad measurement range ensure that you are getting all the information needed to detect and diagnose faults as early as possible.
Easy Deployment
Supplied with DNP3, Modbus and optional IEC 61850 communication protocols for easy deployment within existing communications and SCADA networks.
Fits Your Monitoring Program
Designed to fit your monitoring program, it can operate as a standalone DGA monitor or as part of the Doble Calisto Condition Monitoring Platform.