KROHNE IFC 010 Converter EN - Manual (Page 64)

12/1
12 Block diagram – signal converter
1 Input amplifier
• overdrive-proof signal processing, rapid and accurate
• digital signal processing and sequence control
• patented, high-resolution A/D converter, digitally controlled and monitored
• high signal-to-noise ratio through low-loss field power supply
2 Field power supply
• the low-loss field power supply generates the pulsed, electronically
controlled DC current for the magnetic coils of the primary head
3 Current output
• galvanically isolated from all other groups
• converts the digital output signal from the
µ
P 3 microprocessor into a proportional current
4 Binary outputs
• galvanically isolated from other groups
• selectable input/output combinations
• pulse output (P), passive FET optocouplers allow connection
of electronic and electromechanical totalizers
• status output (S), for limit value, error identification, or flow direction
in forward/reverse flow mode (F/R)
5 Display/operator control unit (option, D Version)
• large-size illuminated LC display
• 3 keys for operator control of the signal converter
• connection to the internal IMoCom bus
• unit can be retrofitted to basic devices (B Version)
6 IMoCom bus plug connector
for connection of external control and test devices such as:
• HHT handheld terminal (option), display/operator control unit for operation of basic versions
• adapter and CONFIG software for operation via MS-DOS PC