Trafag, a precise measurement and monitoring of pressure firm, temperature and gas density, has set a new benchmark in gas density monitoring with the introduction of its 87x9 platform.
Designed for SF₆ and emerging alternative insulation gas mixtures, the platform combines proven mechanical switching with optional continuous density measurement in one scalable solution for modern gas-insulated equipment.
Gas-insulated equipment is facing increasing technical and regulatory demands. New insulation gas concepts, stricter requirements for leakage reduction and documentation, and the growing shift toward condition-based maintenance are raising expectations for gas density monitoring systems.
The Trafag 87x9 platform addresses these requirements with a unified architecture for reliable safety monitoring and future-ready data integration.
At its core, the platform uses Trafag’s proven density-based measuring principle with a sealed reference chamber. This enables mechanical temperature compensation and ensures that switching behavior reflects the actual dielectric condition of the gas compartment, rather than short-term pressure effects or local temperature fluctuations.
The platform includes the 8719 mechanical gas density monitor and hybrid variants that add an independent continuous measurement path. Mechanical switching remains available for defined safety-related thresholds, while continuous density measurement provides analog or digital data for trend monitoring, leak detection, documentation, remote supervision and maintenance planning.
“With the 87x9 platform, Trafag gives OEMs and operators a reliable path from proven mechanical gas density monitoring to future-ready digital supervision. It combines safety-critical switching with the data transparency required for alternative insulation gases, leakage reduction and condition-based maintenance,” said Maura Crobu, product manager gas density sensing solutions at Trafag.
Trafag introduces new standard in gas density monitoring
