DEVICE DESCRIPTION
2
5
ESK4... ...
www.krohne.com
10/2017 - 4001078703 - AD ESK4 Ex II2G R03 en
2.1 Description of device
ESK4...electronic signal outputs serve to determine the position of magnetic encoders. They are
designed for installation in M40 type indicators and are usually used in measuring devices to
measure the volume flow and level of flammable and non-flammable gases and liquids.
The analogue current signal (4...20 mA) with superimposed HART
®
communication signal and
optional switching outputs and bus connection modules for connection to the Foundation
Fieldbus FF or Profibus PA is available as an output signal.
2.2 Description code
The safety description code consists of the following elements *:
2.3 Marking
The marking of the module is on the housing, where the following identification plate can be
found.
Figure 2-1: Description of the safety description code
1
E
E
E
Electronic S
S
S
Signal output K
K
K
Krohne
2
Version of the signal output
4.
4.
4.
4. - 4...20 mA analogue signal output with HART
®
signal
4-I/O
4-I/O
4-I/O
4-I/O - Switching output with counter
4-FF
4-FF
4-FF
4-FF - Foundation Fieldbus connection module
4-PA
4-PA
4-PA
4-PA - Profibus PA connection module
3
Marking without influence on the explosion safety protection
Figure 2-2: Example of a nameplate for a standard version
1
Type designation, manufacturing date and production order
2
Ex data according to PTB 10 ATEX 2021 X or IECEx PTB 17.0033 X
3
Manufacturer logo and address
4
Notified body
5
Note to observe the documentation and for disposal
6
Note on electrostatic charge
