Siemens SITRANS P500, Operating Instructions Manual, Page: 200 / 238

Technical data
11.3 Output
SITRANS P500 with HART
200
Operating Instructions, 12/2014, A5E02344528-09
11.3 Output
Output
Output signal
4 … 20 mA, with modulated HART signal
•
Low limit (infinitely adjusta-
ble)
Up to 3.55 mA, factory setting 3.8 mA
• High limit (infinitely adjusta-
ble)
Up to 23 mA, factory setting 20.5 mA
•
Adjustable damping
0 … 100 s, in steps of 0.1 s
Set to 2 s in the factory
• Current simulator
3.55 … 23 mA
•
Fault current
Steplessly adjustable between:
3,55 ... 3.7 mA, the lower fault current is set as standard, factory
setting 3.6 mA
21,0 ... 23.0 mA
Load Resistor R [Ω]
• Max. load
U
H
= auxiliary power in V
•
HART
The following conditions apply to this:
HART communicator: R = 230 … 1100
Ω
HART modem: R = 230 … 500 Ω
Characteristic curve
•
Linearly increasing or decreasing
• Increasing root extraction
•
Bidirectional root extraction
• User-specific