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Electrical connection
22
6.3.1
Load (for 4 to 20 mA devices )
In order to guarantee sufficient terminal voltage in two-wire devices, a maximum load
resistance R
(including line resistance) must not be exceeded, depending on the supply
L
voltage U
of the supply unit.
B
R
L
max
[ ] W
1068
614
10
1
Power supply 10 to 30 V DC
2
R
maximum load resistance
Lmax
U
Supply voltage
B
6.3.2
Load resistance (for 0 to 10 V devices)
The load resistance must be ≥ 5 [kΩ].
6.4
Post-connection check
Is the device or cable undamaged (visual check)?
Do the cables comply with the requirements ?
Do the cables have adequate strain relief?
Are all the cable glands installed, firmly tightened and leak-tight?
Does the supply voltage match the specifications on the nameplate?
Is the terminal assignment correct ?
If required: Has protective ground connection been established ?
Cerabar PMC11, PMC21, PMP11, PMP21, PMP23
2
R
U
20
30
B
[V]
1
U
6.5V
-
B
L
max £
22mA
Endress+Hauser
A0029452
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