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

Part A System installation and start-up Sect. 2.6 Pulse output P active Pulse output P activefor electronic totalizers (EC)for frequencies ≤ 1 kHzfor electronic totalizers (EC)for frequencies > 1 kHzR1 = 1 kΩ/0.5 W I ≤ 20 mA R i EC > 100 kΩ R = 1 kΩ/0.35 W I ≤ 30 mAR2 / 0.2 W 10 kΩ 1 kΩ 270 ΩU EC max 22 V 12 V 5 VPulse output P passivefor electronic totalizers (EC)for frequencies ≤ 1 kHzU ext ≤ ≤ 32 V DC / ≤ 24 V ACI ≤ ≤ 30 mAR = 1 - 10 kΩP R≥U ext2Rfor frequences > 1 kHzU ext = ≤ 24 V DC / ACR i EC ≥ 100 kΩI ~ 30 mA ~ 18 mAR 560 Ω 1 kΩP R 0.5 W 0.35 WU EC 16 V 18 V* Shielded cablesmust be used to prevent radio interference at pulse output frequencies > 100 Hz05/2003 IFC 110 F 23