KROHNE ESKIIESK3PA User Manual
Handbook
Handbook
ESK
ESK
ESKESK
HandbookHandbook
Signal converter
Additional Ex manual
Additional Ex manual
Additional Ex manualAdditional Ex manual
LEGAL NOTICE!
This cocument is based on a German source document!
CONTENTS
1 GENERAL SAFETY INFORMATION ................................................. 3
2 DEVICE VERSIONS AND MARKING ................................................ 4
2.1 Description ........................................................................................................... 4
2.2 Safety description code........................................................................................ 4
2.3 Marking ................................................................................................................ 5
2.4 Category / Zone.................................................................................................... 5
2.5 Ignition protected types ....................................................................................... 6
2.6 Temperature classes........................................................................................... 6
3 INSTALLATION AND OPERATION .................................................. 7
3.1 Installation ........................................................................................................... 7
4 SAFETY FEATURES........................................................................ 8
4.1 Electrical connection ........................................................................................... 8
5 SERVICE......................................................................................... 9
5.1 Maintenance......................................................................................................... 9
5.2 Dismantling.......................................................................................................... 9
ESK
6 KROHNE measuring technology - Product overview................... 12
2
www.krohne.com 09/2008 • 4000333901 MA ESK-Ex- II2G-AD-R01 en
ESK
GENERAL SAFETY INFORMATION 1
This supplementary “Ex” instruction applies to explosion protected versions of the
electronic signal outputs ESKII, ESK2A and ESK3-PA. It supplements the installation and
operating instructions issued for the non-hazardous-duty versions.
These instructions only contain data relevant to explosion protection. The technical
specifications of the installation and operating instructions for the non-hazardous-duty
version remain valid unless explicitly excluded or replaced by these Instructions.
Electronic signal outputs of the ESKII, ESK2A and ESK3-PA series have been certified in
accordance with European Directive 94/9 EG (ATEX 100a) to European standards EN 60079- X for
use in potentially explosive areas as stated in
by the Physikalisch-Technische Bundesanstalt (PTB).
This certification and its boundary conditions must be observed.
Installation, startup and maintenance may be carried out only by personnel trained in explosion
Installation, startup and maintenance may be carried out only by personnel trained in explosion
Installation, startup and maintenance may be carried out only by personnel trained in explosion Installation, startup and maintenance may be carried out only by personnel trained in explosion
protection !
protection !
protection !protection !
www.krohne.com09/2008 • 4000333901 MA ESK-Ex- II2G-AD-R01 en
3
2 DEVICE VERSIONS AND MARKING
2.1 Description
ESK II and the update version ESK2A are a 4...20mA loop transmitter in 2-wire technology, used
as a signal output. The linear analog signal output represents the volume or massflow of a VAmeter or the level of a levelmeter.
ESK3-PA provides additional information for connecting and operating a PROFIBUS-PA field bus.
The details in these instructions, especially the safety instructions, have not been modified by
this supplement, and must continue to be observed.
The signal converter ESK3-PA is designed in the context of the modular concept. Installation and
attachment are identical to the signal converter ESKII and ESK2A.
2.2 Safety description code
ESK
The safety description code consists of the following elements:
1 EEEElectronic SSSSignal output KKKKrohne
2 Designs of the signal output :
II
II - Analog signal output 4-20mA with HART signal
IIII
2A
2A - Analog signal output 4-20mA with HART signal
2A2A
3-PA
3-PA - Digital signal output for Profibus-PA in conformity with FISCO model
3-PA3-PA
1
positions not needed can be omitted from the description code.
1
4
www.krohne.com 09/2008 • 4000333901 MA ESK-Ex- II2G-AD-R01 en
Loading...