KROHNE BM 26 BASIC-ADVANCED ATEX EN - Manual (Page 14)

3
ANALOG TRANSMITTER
14
BM 26 BASIC/ADVANCED
www.krohne.com 12/2011 - 4000347102 - AD ATEX BM 26 Bas-Adv R02 en
3.1 General safety information
3.1.1 Scope
These instructions are applicable only to the explosion-protection version of the analog
transmitter. For all other data, use the Quick Start and Handbook for the magnetic level
indicator. If you do not have these documents, please contact the nearest sales office or
download them from the website www.krohne.com.
3.1.2 Device description
The analog transmitter converts a variable resistance from a reed chain to an analog or digital
output. This resistance corresponds to the level of the float in the measuring chamber. The
analog transmitter is attached adjacent to the measuring chamber of the magnetic level
indicator.
The table that follows gives alternative transmitter modules for conversion of the variable
resistance to an analog or digital output:
Converter outputs
WARNING!
Installation, commissioning and maintenance may only be carried out by "Personnel trained in
explosion protection".
WARNING!
The information in this chapter only contains data applicable to the analog transmitter. For more
data on use with the measuring chamber, refer to Assembled equipment on page 21
.
INFORMATION!
The information in this ATEX supplement only contains the data applicable to explosion
protection. The technical data in the handbook for the non-Ex version shall be valid in its current
version, provided that they are not rendered invalid or are replaced by this ATEX supplement.
Output module option Designation code (VF or SF)
Analog output modules
4…20 mA xF45xB1xxxx
4…20 mA (PR) xF45xV1xxxx
4…20 mA and indicator option xF45xE1xxxx
Analog output + HART ® communication modules
4…20 mA+HART ® xF45xC1xxxx
4…20 mA+HART ® (PR)
xF45xW1xxxx
4…20 mA+HART ® and indicator option
xF45xF1xxxx
Fieldbus output modules
FOUNDATION™ Fieldbus (PR) xF45xD1xxxx
PROFIBUS PA ® (PR)
xF45xX1xxxx
PROFIBUS PA ® xF45xA1xxxx