Endress+Hauser Proline Promass O 100HART, Operating Instructions Manual

Page: 99 / 140

Proline Promass O 100 HART Technical data
Hauser 99
16.5 Power supply
Terminal assignment (→  27)
Pin assignment, device plug (→  28)
Supply voltage Transmitter
For device version with all communication types except Modbus RS485 intrinsically safe:
DC 20 to 30 V
The power unit must be tested to ensure it meets safety requirements (e.g. PELV, SELV).
Power consumption Transmitter
Order code for
"Output"
Maximum
Power consumption
Option B : 4-20mA HART, pulse/frequency/switch output 3.5 W
Current consumption Transmitter
Order code for
"Output"
Maximum
Current consumption
Maximum
switch-on current
Option B : 4-20mA HART, pul./
freq./switch output
145 mA 18 A (<0.125 ms)
Power supply failure • Totalizers stop at the last value measured.
• Depending on the device version, the configuration is retained in the device memory or
in the plug-in memory (HistoROM DAT).
• Error messages (incl. total operated hours) are stored.
Electrical connection (→  28)
Potential equalization No special measures for potential equalization are required.
Terminals Transmitter
Spring terminals for wire cross-sections0.5 to 2.5 mm 2 (20 to 14 AWG)
Cable entries • Cable gland: M20 × 1.5 with cable 6 to 12 mm (0.24 to 0.47 in)
• Thread for cable entry:
– NPT ½"
– G ½"
– M20
Cable specification (→  26)