KROHNE IFC 210 E-EEx EN - Manual (Page 89)

Part D Technical Data, Measuring Principle and Block Diagram Sect. 12
05/2002 IFC 210 E 89
12
%ORFNGLDJUDP²VLJQDOFRQYHUWHU,)&(
The standard
•
outstanding accuracy
•
practice-oriented standard equipment,
current and pulse output (galvanically
isolated)
•
status and/or control input, adjustable
for numerous tasks: limit switch,
direction indication, error messages,
external initiation of functions, etc.
•
IMoCom bus, suitable for numerous
internal and external tasks
•
simplified, standard KROHNE operator
control concept
•
low power consumption
c Printed circuit board ADC/FSV
•
overdrive-proof signal processing, processes flow rate
peaks up to 20 m/s and more, fast and accurate
•
digital signal processing and sequence control
•
patented, high-resolution analog/digital converter,
digitally controlled and monitored
•
input amplifier with facility for voltage grading of the
signalling core shield (bootstrap)
•
high signal-to-noise ratio through low-loss field current
supply with high frequencies and high currents
•
pulsed DC current, electronically controlled, for
supplying the magnetic coils in the primary head
•
customer parameters and internal calibration data are
filed in separate EEPROMs (easily replaceable in the
event of a service)
d Printed circuit board: display/operator control unit
•
large illuminated graphic LC display
•
5 keys for operation of the signal converter
•
connection to the internal IMoCom bus
•
distribution of general signals, such as IMoCom bus,
supply power, etc..
e IMoCom bus plug for connection of external control and
testing equipment, such as adapters and CONFIG software for
operator control via MS-DOS PC
f Printed circuit board I/O-HART®, outputs and inputs
All outputs and inputs galvanically isolated
Current output I
•
for active or passive operation
•
converts the digital output signal from microprocessor
µP into a proportional current
Pulse output P
•
for electronic totalizers up to max. 10 kHz
•
for electromechanical totalizers up to max. 50 Hz
•
KROHNE-specific integrated circuit KSA 04 for fine
quantization of the output signals over a wide dynamic
range
Binary output and input B1 and B2
•
any output/input combination selectable
•
status output for limit value, error detection, flow
direction in F/R mode, etc.
•
control input for totalizer and error resets, also for
holding outputs or setting to “zero“
g Plug-in module slots for upgrading or retrofitting the
signal converter
•
RS 485 interface module
•
GTEX module for Ex-i operation of the signal converter
outside hazardous areas
•
Further modules in preparation
Graphik
LCD-Display
5 keys
EEPROM EEPROM