KROHNE ESKII ESK3 PA ATEX II2G Ex i EN - Manual (Page 4)

2
DEVICE VERSIONS AND MARKING
4
ESK
www.krohne.com 09/2008 • 4000333901 MA ESK-Ex- II2G-AD-R01 en
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 VA-
meter 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
The safety description code consists of the following elements: 1
1 positions not needed can be omitted from the description code.
1 E E E Electronic S S S Signal output K K K Krohne
2 Designs of the signal output :
II
IIII II - Analog signal output 4-20mA with HART signal
2A
2A 2A 2A - Analog signal output 4-20mA with HART signal
3-PA
3-PA 3-PA 3-PA - Digital signal output for Profibus-PA in conformity with FISCO model
MA_ESK_Ex_II2G_R01_en_PRT.book Page 4 Tuesday, September 23, 2008 8:05 AM