1.2
Measuring system
A working system for level measurement comprises:
•
Prolevel FMC 662 transmitter,
•
Capacitance probe for level measurement
•
Electronic insert EC 37 Z or EC 47 Z
The Prolevel may operate as a stand alone unit with standard 0/4
…
20 mA output; two
sets of two relays, freely assignable to channel 1 or 2, can be used to control pumps,
valves, annunciators etc.. Alternatively, the Prolevel may be operated remotely over the
optional Rackbus RS 485 interface, either direct from a personal computer or as part of
a process control system. Connection to Modbus, Profibus or FIP networks can be
realised through the gateways ZA 672, ZA 673 or ZA 674 respectively.
Versions
The Prolevel is available in two versions:
•
With display and front panel controls,
•
Without display and front panel controls — in this case the transmitter must be
configured by the Commulog VU 260 Z handheld terminal or over the optional
Rackbus RS-485 interface.
In all other respects, the two versions are identical. More details on controls and operation
can be found in Chapter 3.
BA143_04
Prolevel transmitters (and other units with Rackbus RS-485)
Rackbus RS-485
Personal computer with
operating software, e.g.
Commutool, Commuwin,
Commugraph
alternative
FXA 675 + ZA 67x
supervi
sory net
work
RS
-485 adapter or
P
C
card
Fig. 1.3:
The Prolevel FMC 662 can be
used as a stand-alone unit, see
Figs 1.1 and 1.2 or as part of
an operating system.
An RS-485 adapter or PC card
allows direct connection to a
personal computer, the FXA 675
and gateway ZA 67x connection
to a supervisory system using
the Modbus, Profibus or FIP
protocol
Prolevel FMC 662
Chapter 1: Introduction
Hauser
7
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