Knick Stratos PROFIBUS 2221X Cond, User Manual

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Intended Use
Stratos PROFIBUS 2221X Cond is a PROFIBUS-PA analyzer. The Stratos is used for
conductivity measurement in biotechnology, food processing, pharmaceutical and
chemical industry, water/wastewater treatment, as well as for monitoring ultrapure
water. The sturdy molded enclosure can be wall mounted or fi xed into a control
panel. It can also be mounted at a post or pipe.
The protective hood provides additional protection against direct weather exposure
and mechanical damage. The device can easily be replaced since the terminals are of
a plug-in design.
Technical Features
Communication between measuring point and control room is via PROFIBUS-PA.
The data exchange (cyclic and acyclic) is performed in accordance with the
PROFIBUS-DP/V1 protocol.
Introduction
Meas.point
Pt 100/
Pt 1000/
NTC 30 k
Ω
NTC 100 k
Ω
Ex ia IIC
mS, M Ω , SAL
Sensocheck
Temperature
+
–
Stratos PROFIBUS
2221X Cond
Segment
coupler
PROFIBUS-
PA
PROFIBUS
master
Fig.: System functions (hardware)
Control room
Ex ia IIC