Siemens SITRANS P DS III - Operating Conditions

SITRANS P DS III/P410 (7MF4.33.. 7MF4.34.. 7MF4.35..)
44 A5E03434626-04, 05/2015
7.4
Output
Output
HART
PROFIBUS PA and FOUNDATION
Fieldbus
Output signal 4 … 20 mA Digital PROFIBUS PA or
FOUNDATION
TM
Fieldbus signal
• Low saturation limit (fully
adjustable)
3.55 mA, set to 3.84 mA in the factory –
•
High saturation limit (fully
adjustable)
23 mA, set to 20.5 mA or optionally
22.0 mA in the factory
–
• Ripple (without HART
communication)
I
SS
≤ 0.5 % of the max. output current –
adjustable time constants
damping coefficient
0 … 100 s, continuously adjustable 0 … 100 s, continuously adjustable
Adjustable time constants (T63)
with local operation
0 … 100 s, in steps of 0.1 s
Factory-set to 2 s
0 … 100 s, in steps of 0.1 s
Factory-set to 2 s
•
Current transmitter
3.55 … 23 mA
–
•
Failure signal
3.55 … 23 mA
–
Load
Resistor R [Ω]
–
•
Without HART communication
–
U
H
Power supply in V
• With HART communication
–
HART communicator (Handheld)
R =230 … 1100 Ω
–
SIMATIC PDM
R =230 … 500 Ω
–
Characteristic curve
•
Linearly increasing or linearly decreasing
• Linear increase or decrease or root extraction increase (only for differential
pressure and flow rate)
Bus physics
–
IEC 61158-2
Polarity-independent
–
Yes
7.5
Operating conditions
Rated conditions for gauge pressure and absolute pressure (from the gauge pressure series)
Installation conditions
Ambient conditions
•
Ambient temperature
Note
Observe the temperature class in hazardous areas.
Measuring cell with silicone oil
filling
-40 … +85 °C (-40 … +185 °F)
Measuring cell with inert liquid
-20 … +85 °C (-4 … +185 °F)
Measuring cell with inert filling
liquid for relative pressure
measuring cells 1, 4, 16 and 63
bar
-40 ... +85°C (-40...+185°F)
Display
-30 … +85 °C (-22 … +185 °F)
Storage temperature
-50 … +85 °C (-58 … +185 °F)
•
Climate class
Condensation Permitted