Morgan Schaffer Calisto 1

Product Update:

Effective December 1st, 2013 Calisto Manager replaces Calisto Access as the Windows interface software for the following Calisto and Calisto 2.

Calisto Manager is now the universal interface for the entire family of Calisto products: Calisto, Calisto 2, Calisto 5 and Calisto 9.

Morgan Schaffer-calistoHydrogen-Moisture

CALISTO is a simple and reliable system for detecting transformer incipient faults at their earliest stage. It provides unequalled stability at low concentration levels and is field-installable in less than 2 hours. The monitor offers additional value through on-line monitoring of dissolved water and can be easily networked for monitoring entire substations. Used in conjunction with other MSS products, such as our Myrkos Portable Fault Gas Analyzer, CALISTO becomes a key element in managing critical transformers.


  • Monitor large fleets of transformers cost efficiently
  • Detect and monitor incipient faults using interference-free hydrogen readings
  • Correlate moisture behavior with load while monitoring long-term trends
  • Compatible with dry-out and degassing operations
  • Very low maintenance and worry-free dependability


  • Precise and accurate hydrogen and moisture readings
  • Built-in oil circulation and flow monitoring
  • Continuous enclosure and oil conditioning
  • DNP3 and Modbus standard, IEC 61850 optional
  • Vacuum tolerant
  • Substation hardened communication electronics
  • Built-in moisture and solubility coefficients for all common insulating fluids

pdf-iconData Sheet