Proline Promag 55 PROFIBUS DP/PA Technical data
Endress+Hauser 143
Switching output Relay output: Normally closed (NC or break) or normally open (NO or make) contacts available
(default: relay 1 = NO, relay 2 = NC), max. 30 V / 0.5 A AC; 60 V / 0.1 A DC, galvanically isolated
Low flow cut off Switch points for low flow freely selectable.
Galvanic isolation All circuits for inputs, outputs, and power supply are galvanically isolated from each other.
10.1.5 Power supply
Electrical connections ä 36
Supply voltage 20 to 260 V AC, 45 to 65 Hz
20 to 64 V DC
Cable entries Power supply and signal cables (inputs/outputs):
• Cable gland M20 × 1.5 (8 to 12 mm / 0.31 to 0.47 in)
• Sensor cable gland for armored cables M20 × 1.5 (9.5 to 16 mm / 0.37 to 0.63 in)
• Cable entries for thread ½" NPT, G ½"
Connecting cable for remote version:
• Cable gland M20 × 1.5 (8 to 12 mm / 0.31 to 0.47 in)
• Sensor cable gland for armored cables M20 × 1.5 (9.5 to 16 mm / 0.37 to 0.63 in)
• Cable entries for thread ½" NPT, G ½"
Cable specifications
(remote version)
ä 44
Power consumption AC: < 45 VA at 260 V AC; < 30 VA at 110 V AC (incl. sensor)
DC: < 19 W (including sensor)
Switch-on current:
• max. 2.5 A (< 200 ms) at 24 V DC
• max. 2.5 A (< 5 ms) at 110 V AC
• max. 5.5 A (< 5 ms) at 260 V AC
Power supply failure Lasting min. 1 power cycle:
• EEPROM or HistoROM/T-DAT saves measuring system data if power supply fails
• HistoROM/S-DAT: exchangeable data storage device which stores sensor characteristic data
(nominal diameter, serial number, calibration factor, zero point etc.)
Potential equalization ä 52
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