Gas detection control unit for measurement of flammable and/or toxic gases as well as oxygen.
Smoke detectors as option. Graphic display. Menu guided configuration.
2 Alarm levels per channel. 5 freely configurable relays.

Features

• 2 Gas Transmitters (4…20 mA)
• Line with up to 2 smoke detectors (Art. 297000)

• Illuminated graphic display (Measured values, messages, user menu
• LED-indication for gas transmitters
       · Pre- and main alarm (2 x 2 x red)
       · Status of measuring channel: operation (2 x green), fault (2 x yellow)
       · Status of control unit: operation (1 x green), fault (1 x yellow)

• Menu guided system via display and six push buttons
• Completely configurable at device, no tools needed
• Password protected
• Adjustment of measuring channels at control unit
• Maintenance mode to be activated via menu or digital input

• 2 freely adjustable alarm levels per transmitter
       · rise above level
       · fall below level
• Latching of each alarm configurable

• 5 Change-over contacts 230 V / 4 A (total current ET-2D: max. 10 A)
       · Freely configurable with alarms and fault messages
       · Operation selectable: open circuit or closed-circuit principle
       · Horn reset selectable: quit in spite of present message
• 2 Change-over contacts 230 V / 4 A (total current ET-2D: max. 10 A)
       · Fault of control unit
       · Maintenance mode

• 2 Analogue inputs 4…20 mA for Transmitter
• 2 Digital inputs, 24 V DC, potential free (for smoke detectors)

• Extension A: 4…20 mA (not isolated)
• Interface RS232 or RS485/RS422 (configurable)

• Power Supply: 230 V AC or 24 V DC
• Power Consumption: max. 30 W
• Operation Temperature: -20 °C to +55 °C, Humidity: non condensing
• Storage Temperature: -25 °C to +60 °C, Humidity: non condensing

Extensions

• Analogue outputs (A): 4…20 mA (not isolated)
• Data logger (D):
       · Aufzeichnung aller Messwerte und Meldungen
       · Rate: alle 10 s
       · Speichermedium: USB-Stick
       · Lieferumfang 16 GB (max. Speicherdauer ca. 4 Jahre)
       · im Gehäuse integriert
• Ethernet-Module (E):
       · Connection to network
       · Transmission of all measured values and messages
       · Preparation for remote maintenance