Wiring Cerabar S PMP71 with 4 to 20 mA HART
18 Endress+Hauser
4.2.3 Load
P01-PMP71MID-05-xx-xx-xx-001
Fig. 14: Load diagram, observe the position of the jumper and the explosion protection.
(→ ä 17, Section "Taking 4 to 20 mA test signal".)
1 Jumper for the 4 to 20 mA test signal inserted in "Non-Test" position
2 Jumper for the 4 to 20 mA test signal inserted in "Test" position
3 Supply voltage 10.5 (11.5) to 30 V DC for 1/2 G, 1 GD, 1/2 GD, FM IS , CSA IS, IECEx ia, NEPSI Ex ia
4 Supply voltage 10.5 (11.5) to 45 V DC for devices for non-hazardous areas, 1/2 D, 1/3 D, 2 G Ex d,
3 G Ex nA, FM XP, FM DIP, FM NI, CSA XP, CSA dust ignition-proof, NEPSI Ex d
R
Lmax
Maximum load resistance
U Supply voltage
!
Note!
When operating via a handheld terminal or via a PC with an operating program, a minimum
communication resistance of 250 Ω must be taken into account.
4.2.4 Shielding/potential matching
• You achieve optimum shielding against interference influences if the shielding is connected on
both sides (in the cabinet and at the device). If potential equalization currents are expected in the
plant, only ground the shielding on one side, preferably at the transmitter.
• When using in hazardous areas, you must observe the applicable regulations.
Separate Ex documentation with additional technical data and instructions is included with all
Ex devices as standard.
30
20
10.5
U
[V]
40 45
1282
1500
847
413
[]W
R
L
max
30
20
11.5
U
[V]
40 45
1239
1456
804
369
[]W
R
L
max
TestTest
➀
➁
U – 10.5 V
R
L
max
23 mA
£
U – 11.5 V
R
L
max
23 mA
£
➂
➃
➂
➃
To Next Page
Loading...
