Filter monitor box The Filter Monitor Box allows remote filter monitoring. It evaluates the signals from a filter monitor, as well as from an ECO Drain condensate drain, and can pass messages to a central maintenance control system via two alarm contacts.
Group alarm (volt-free contact) - Indication of (time-controlled) service interval for filter element change
- Indication of optimum time for filter element change computed via measurement value processing
- Maximum differential pressure exceeded (2 minute delay)
- Condensate drain alarm
Safety alarm (volt-free contact only active in active safety mode) - Maximum differential pressure exceeded (5 second delay)
The power supply for the filter monitor and ECO-Drain is provided by the Filter monitor box. | 
