2
DEVICE DESCRIPTION
8
ESK4... ...
www.krohne.com
10/2017 - 4001078703 - AD ESK4 Ex II2G R03 en
2.7 Electrical data
The connection may only be made using separately certified intrinsically safe isolating amplifiers
or zener barriers with the following maximum values per circuit:
Electrical values for ESK4... ...
The connector behind the cutout on the ESK4... module cover connects internal intrinsically safe
circuits. Only certified modules of type ESK4-I/O, ESK4-FF or ESK4-PA may be connected.
The additional connector on the ESK4-I/O module connects the optional display as an internal
intrinsically safe circuit.
Type of signal output
Terminals Maximum value per intrinsically safe circuit
U
i
I
i
P
i
C
i
L
i
ESK4...
11, 12
30 V
130 mA
1 W
0 nF
10
µ
H
ESK4-I/O
1, 2, 3 or
4, 5, 6 or
7, 8
30 V
130 mA
1 W
10 nF
0
µ
H
ESK4-FF / ESK4-PA
D, D-
24 V
380 mA
5.32W
0 nF
0
µ
H
FISCO FIELD DEVICE
