Technical information

Deltabar M PMD55
Endress+Hauser 9
Output
Output signal • 4 to 20 mA with superimposed digital communication protocol HART 6.0, 2-wire
• Digital communication signal PROFIBUS PA (Profile 3.02)
• Digital communication signal FOUNDATION Fieldbus
Signal range –
4to20mAHART
3.8 mA to 20.5 mA
Signal on alarm As per NAMUR NE 43
• 4 to 20 mA HART
Options:
– Max. alarm*: can be set from 21...23 mA (factory setting: 22 mA)
– Keep measured value: last measured value is kept
– Min. alarm: 3.6 mA
• PROFIBUS PA: can be set in the Analog Input block,
Options: Last Valid Out Value (factory setting), Fail-safe Value, Status Bad
• FOUNDATION Fieldbus: can be set in the Analog Input block,
Options: Last Good Value, Fail-safe Value (factory setting), Wrong Value
Load – 4 to 20 mA
P01-PMD55xxx-05-xx-xx-xx-006
Load diagram
1 Supply voltage 11.5 ... 30 V DC for intrinsically safe instrument versions
2 Supply voltage 11.5 ... 45 V DC (versions with plug-in connector 35 V DC) for other types of protection and for
uncertified instrument versions
R
Lmax
Maximum load resistance
U Supply voltage
Note!
When operating via a handheld terminal or via PC with an operating program, a minimum communication
resistance of 250 must exist within the loop.
Resolution • Current output: 1 A
• Display: can be set (factory setting: presentation of the maximum accuracy of the transmitter)
30
20
11.5
U
[V]
40 45
1239
1456
804
369
[]W
R
L
max
U – 11.5 V
R
L
max
0.023 A
£
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