ADC 410F Instruções de Operação descarregar pdf (Página 76)

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12 Block diagram – signal converter

1 Input amplifier

• overdrive-proof signal processing, processes flow peaks up to 20 m/s (65 ft/s) and more

rapidly and accurately

• 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 with high frequencies

and currents

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

• The high field current ensures a high signal level

3 Current output

• galvanically isolated from all other groups

• converts the digital output signal from the µP 3 microprocessor into a proportional current

4 Binary outputs and/or inputs

• galvanically isolated from other groups

• selectable input/output combinations

• pulse output (B1), passive FET optocouplers allow connection of electronic and

electromechanical totalizers

• status output (B2) for limit value, error identification, or flow direction in forward/reverse

flow mode (F/R) or measuring range identification in BA mode

• both outputs can also be used as control inputs

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:

• adapter and CONFIG software for operation via MS-DOS PC

internal IMoCom-Bus

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ADC 410F Instruções de Operação Página 76