Technical Data; Output - Endress+Hauser Cerabar PMP51B Operating Instructions Manual

Technical data

Output signal
Signal on alarm
Load
Damping
Ex connection data
Linearization
66
15 Technical data
15.1

Output

Current output
4 to 20 mA with superimposed digital communication protocol HART, 2-wire
The current output offers a choice of three different operating modes:
• 4.0 to 20.5 mA
• NAMUR NE 43: 3.8 to 20.5 mA (factory setting)
• US mode: 3.9 to 20.8 mA
Signal on alarm in accordance with NAMUR recommendation NE 43.
4 to 20 mA HART:
Options:
• Max alarm: can be set from 21.5 to 23 mA
• Min. alarm: < 3.6 mA (factory setting)
4 to 20 mA HART
R
L max
[ ] W
1065
848
10.5
1 Power supply 10.5 to 30 VDC Ex i
2 Power supply 10.5 to 35 VDC, for other types of protection and non-certified device versions
3 R maximum load resistance
Lmax
U Supply voltage
B
Operation via handheld terminal or PC with operating program: take minimum
communication resistance of 250 Ω into consideration.
A damping affects all outputs (output signal, display). Damping can be enabled as follows:
Factory setting: 1 s
See the separate technical documentation (Safety Instructions (XA)) on
www.endress.com/download.
The device' s linearization function allows the user to convert the measured value to any
units of height or volume. User-defined linearization tables of up to 32 value pairs can be
entered if necessary.
3
U
30 35
B
[V]
1
2
Cerabar PMP51B HART
U – 1 .5 V 0
B
R
£
L max
23 mA
Endress+Hauser
A0039232