Ultrasonic flow meters - UFM 530 HT - Forbes Marshall
Ultrasonic flow meters - UFM 530 HT - Forbes Marshall
Ultrasonic flow meters - UFM 530 HT - Forbes Marshall
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4 ELECTRICAL CONNECTIONS<strong>UFM</strong> <strong>530</strong> <strong>HT</strong>The following Ex-i Modis versions have two Modis modules, providing intrinsically safe input /output circuits. Modis versions don't have analogue inputs A1 / A2.Ex-i (Modis) versionFigure 4-9: Terminals for instrument with Ex-i (Modis)Terminal Function Specification1 Neutral mains power supply 100...240 VAC, 24 VAC or 24 VDC2 Live mains power supply 100...240 VAC, 24 VAC or 24 VDC3 Ground for pulse, frequency or statusoutput4 Pulse, frequency or status output I max = 150 mA, U max =32VDC/ 24VAC,maximal frequency = 2 kHz.5 Current output Current output (I): I ≤ 22 mA,R load ≤ 680 Ω, U max = 15 VDC.6 Ground for current output26www.krohne.com02/2010 - 4000210602 - TD <strong>UFM</strong> <strong>530</strong> <strong>HT</strong> R02 en
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