IFC 110 F V2.0 IFC 110 F-EEx V2.0 - Krohne

Part D Technical Data, Measuring Principle and Block Diagram Sect. 1212 Block diagram FSV printed circuit board, field current supply(terminals 7 and 8)• Large signal-to-noise ratio owing to low-lossfield current supply with high frequencies andhigh currents.• Pulsed direct current which is preciselycontrolled electronically, for the magnetic coilsof the flow sensor.• Operating and calibrating data are stored in anEEPROM so that the PCB can be easilyreplaced without the need for re-calibration. BDE printed circuit board, motherboard• Large illuminated LC display.• 15 keys for operator control of signal converter• Can be retrofitted with optional operatorcontrol by bar magnet.• Distribution of general signals such asIMoCom bus, power supply. ADC printed circuit board, analog / digitalconverter (terminals 1, 2, 3, 20 and 30)• Signal processor protected against overload,for quick and precise processing of flowpeaks up to and exceeding 20 m/s or 60 ft/s.• Digital signal processor, sequential controland test routines.• Patented high-resolution analog/digitalconverter, digitally controlled and monitored.• Input amplifier allowing control of potential ofsignal line shielding (bootstrap).• User parameter and internal calibrationvalues are stored in separate EEPROMs(easily replaceable). I/O printed circuit board, inputs and outputs• Groups, inputs and outputs are galvanicallyisolated from each other and from all othercircuits.• Power supply source for the inactive inputsand outputs.• Specific KROHNE circuit KSA 04 for finequantization of output pulses across a widedynamic range.• Active current output I (e.g. 0/4-20 mA) withload control.• Pulse output P for electronic totalizers, max.10 Hz.• Pulse output A1 for electromechanicaltotalizers, max. 50 Hz, can also be used asstatus output A1.• Several status outputs A1, A2, D1, D2.• Control inputs C1 and C2.IMoCom bus plugConnecting external operating and testing devices,e.g. RS 232 adapter and CONFIG software foroperator control of signal converter by MS-DOSPC or laptop. Slots for plug-in modules, for upgrading orconverting the signal converter• HART / RS 485 ancillary board• GTEX ancillary board for Ex-i operation of thesignal converter outside hazardous areas.• Other modules and ancillary boards inpreparation.05/2003 IFC 110 F 93