COMPLETE DGA + MOISTURE DIAGNOSTIC MONITOR

Introduction:

Doble Calisto series is an advanced online Dissolved Gas Analysis (DGA) monitoring system designed for the continuous condition assessment of oil-filled power transformers. It continuously measures key dissolved gases in transformer oil, such as hydrogen, methane, ethane, ethylene, acetylene, carbon monoxide and carbon dioxide. By monitoring these gases, the system helps identify developing faults such as overheating, arcing, partial discharge and paper insulation deterioration. The Calisto provides continuous, real-time monitoring of transformer health, enabling utilities and industries to detect abnormal conditions at an early stage and take preventive action. This helps reduce the risk of unexpected transformer failures, improve asset reliability, and support condition-based maintenance.

The Calisto is a market-leading multi-gas Dissolved Gas Analysis (DGA) monitor designed to deliver the accurate, reliable data needed for early detection and diagnosis of impending transformer failures, cost-efficient condition-based maintenance, and informed optimal loading decisions. Engineered for accuracy, the Calisto offers best-in-market performance benchmarked by clients, laboratories, and industry working groups, ensuring confidence in the DGA results. Its market-leading low detection limits and exceptionally broad measurement range provide comprehensive gas analysis, enabling faults to be detected and diagnosed at the earliest possible stage. Designed for seamless integration into existing monitoring and SCADA infrastructure, the Calisto supports DNP3 and Modbus communication protocols, with IEC 61850 available as an option. Flexible and easy to deploy, it can operate as a standalone DGA monitor or as an integral part of the Doble Calisto Condition Monitoring Platform, allowing it to fit seamlessly into a wide range of transformer monitoring programs.

Calisto Monitors are engineered to deliver dependable, long-term performance, even in the most demanding industrial environments.

Self-Calibrating: Minimizes maintenance requirements while ensuring consistent measurement accuracy.

Rugged & Reliable: Fully functional in harsh environmental conditions.

Field-Proven Electronics: Industrial-grade electronics designed for demanding applications.

Superior Surge Protection: 5 kV surge isolation on all network connections.

Power Interruption Protection: 250ms protection against power interruptions.

Industry-Leading EMC & Safety: Best-in-industry electromagnetic compatibility and safety ratings.

Worldwide Technical Support: Backed by global technical service and support.

24-Hour Response: Rapid technical assistance with a response time of 24 hours.

Calisto Manager provides an intuitive interface for configuring, monitoring and managing Calisto Monitors, with powerful functionality for both local and remote operations.

Configure Monitor Settings: Easily set operating parameters and alarm levels.

Monitor Status: View real-time monitor status and system information.

Historical Data: Download and analyze stored measurement and event data.

Monitor Upgrades: Perform software and firmware upgrades efficiently.

Simple SCADA Functionality: Provides essential supervisory control and data acquisition capabilities for streamlined system monitoring.

Available Models: Calisto, Calisto-2, Calisto-5, Calisto-9, Calisto-R9