Ultrasonic flow meters - UFM 530 HT - Forbes Marshall

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4 ELECTRICAL CONNECTIONSUFM 530 HT4.2 Connection of signal cablesConnect the signal cable from the connection box of the UFS 500 HT sensor to the UFC 030signal converter according to underneath drawings for the single beam and dual beamconstruction.Figure 4-2: Connection of the sensor cables for dual beam (left) andsingle beam (right) building construction (sensor side)Figure 4-3: Connection of the sensor cables, converter side20www.krohne.com02/2010 - 4000210602 - TD UFM 530 HT R02 en
UFM 530 HTELECTRICAL CONNECTIONS 44.3 Electrical connections of the signal inputs and outputsFor wiring of the signal inputs and outputs it is advised to use unshielded twisted pairs.Please observe instrument polarity: current (I) is always flowing towards I, C, P, A1, A2 terminals(current sink).The signal inputs and outputs terminals are located in the converter terminal box. It isaccessible after removing the rear (blind) cover of the converter. There are versions for non Exand for Ex applications.4.3.1 Non Ex versionsNon Ex standard versionFigure 4-4: Terminals for standard instrument.Terminal Function Specification1 DC power supply from converter for activewiring of inputs and outputs.2 Combined current output (I) and digitalinput (C). Current output (I) includesHART-Communication.22 VDC at full load, 24 VDC maximum,I ≤ 100 mA.Current output (I): I ≤ 22 mA,R load ≤ 680 Ω, U max = 15 VDC.Digital input (C): low = 0...5 VDC,high = 15...32 VDC (will be switched offwhen current output activated).3 Pulse / frequency output. I max = 150 mA, U max =32VDC/ 24VAC,maximal frequency = 2 kHz.4 Analog input 2, for temperature orpressure measurement.0(4)...20 mA, R i = 58,2 Ω, fuse = 50 mA.5 Analog input 1, for temperaturemeasurement.0(4)...20 mA, R i = 58,2 Ω, fuse = 50 mA.6 Common ground -Never use the active and passive mode at the same terminal simultaneously.If HART-Communication is used, do not connect the pulse/frequency output P in active mode.The electrical input and output signals can be connected either in active or in passive mode. Inactive mode DC supply voltage is provided from the terminal V+. In passive mode supply voltageis provided from an external source.02/2010 - 4000210602 - TD UFM 530 HT R02 enwww.krohne.com21
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Ultrasonic flow meters - UFM 530 HT - Forbes Marshall

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