Monitoring system for steam traps - Cona Control | ARI

CONA-control ARI – Steam Trap Monitoring

The CONA-control system is utilized for continuous monitoring of steam traps in steam and condensate return networks. It identifies two primary failures: steam leakage through the trap and blockage due to cold condensate accumulation. Measurement is conducted using a temperature/calorimetric sensor in a control chamber, evaluated by a measuring amplifier.

Installation Configurations

• External Control Chamber positioned before the steam trap.
• Bolt-on Control Chamber as an add-on for selected CONA steam traps.
• Local indication via LED for Trap Inspect, Blockage, and Steam Leakage.
• Optional AS-i-Bus interface, central indication for up to 30 steam traps, and connection to higher-level systems via PROFIBUS DP.

Technical Selection Data

The external chamber is available in PN40, DN15–DN50, with PS 32 barg and inlet temperature up to 250°C. Body materials: P250GH / 1.0460 or stainless steel 1.4541. Connections: flanges per DIN EN 1092-1, thread Rp per DIN EN 10226-1 or NPT per ANSI B1.20.1, socket weld per DIN EN 12760, and butt weld preparation per EN ISO 9692.

Electronics and Automation

A measuring amplifier is required per control chamber, wall or panel mounted, with IP65 protection. Power supply 18–36 VDC or AS-i-Bus, ambient temperature 0 to +70°C. The central unit has IP65, 100–240 VAC or optionally 24 VAC, with ambient temperature 0 to +50°C. The system does not use an actuator; output is for status indication/signaling to PLC, AS-i, or relay.

Typical Applications

Suitable for boiler rooms, steam distribution lines, heat exchangers, HVAC coils, sterilizers, food processing, and chemical plants where steam leakage increases consumption and blockage reduces thermal efficiency.

FAQ

What media does it monitor?
Steam and condensate at the inlet or on the steam trap.

Can it be installed in existing systems?
Yes, with the selection of appropriate chamber, connection, material, and signal to existing automation.