KROHNE ESK4 Ex II2G Ex iEN - Manual (Page 4)

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DEVICE DESCRIPTION
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ESK4... ...
www.krohne.com 05/2014 - 4001078702 MA ESK4 Ex II2G AD R02-en
Device description
2.1 Device description
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 the 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.
1 E E E Electronic S S S Signal output K K K Krohne
2 Version of the signal output
4 44 4 - Analogue signal output 4-20mA with HART signal
4-I/O
4-I/O 4-I/O 4-I/O - Switch 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
1 Device type
2 Manufacturer
3 Notified ATEX body
4 Serial number
5 Ex-data acc. to PTB 10 ATEX 2021 X
6 Note manual
AD_ESK4_II2G_R02_en_4001078702_PRT.book Page 4 Wednesday, June 25, 2014 7:19 AM