AMBUS® Log Series

Technical data

• 2 versions: 20 or 60 devices
• Operating voltage (version 20) 11 VDC to 28 VDC / 13 VAC to 28 VAC; (version 60) 230 VAC (optional 110 VAC), 50/60 Hz
• Power consumption (Version 20) 5W DC / 9W AC; (Version 60) 12W
• Temperature range: 0°C to 55°C
• M-Bus voltage (Version 20) 32V (Mark, no load); (Version 60) 39V (Mark, no load)
• M-Bus quiescent current: (Version 20) max. 30 mA (20 standard loads); (Version 60) max. 90 mA (60 standard loads) Max. number
• M-Bus addresses 240
• Overcurrent threshold (Version 20) 60 mA; (Version 60) 140 mA
• Bus internal resistance (Version 20) approx. 100Ω;
  (Version 60) approx. 15Ω
• Transmission rate: 300 baud to 9,600 baud
• Galvanic isolation (Version 20): No; (Version 60): Yes
• Housing: Light gray plastic housing (Version 20), Protection Class IP 40, H x W x D: 58 mm x 106 mm x 96 mm
• Housing: Light gray plastic housing (Version 60), Protection Class IP 52, Dimensions: 71 mm x 165 mm x 175 mm
• Controls: 4-button membrane keypad, 2-line LCD display with 16 characters per line
• Data storage (Version 20): at least 2,000 telegrams (distributed among the number of meters); (Version 60): at least 4,000 telegrams (distributed among the number of meters) 1 MB standard, 2 MB or 4 MB upon request