A-ISOMETER® IRDH375 IRDH375B - Bender

Technical data IRDH375(B)Permissible extraneous DC voltage U fg ................................................................................ ≤ DC 1200 VPermissible system leakage capacitance C e ............................................................................. ≤ 500 µFFactory setting ................................................................................................................................. 150 µFDisplaysDisplay, illuminated......................................................................................................... two-line displayCharacters (number of characters) .................................................................................................. 2 x 16Display range , measuring value ...................................................................................... 1 kΩ .... 10 MΩRelative percentage error (1 kΩ .... 10 MΩ)................................................................................. ±1 kΩRelative percentage error (10 kΩ .... 10 MΩ).................................................................. ±10 %Outputs/inputsTEST/ RESET button ......................................................................................................... internal/externalCable length TEST/RESET button external .................................................................................... ≤ 10 mCurrent output for measuring instrument SKMP (scale centre point = 120 kΩ):....................................Current output IRDH375 (load)..................................................................................400 µA (≤ 12.5 kΩ)Current output IRDH375B (load)................................................................................... 20 mA (≤ 500 Ω)Accuracy current output (1 kΩ ... 1 MΩ)....................................................................... ±10%, ±1 kΩSerial interfaceInterface / Protocol IRDH375.................................................................................. RS485 / ASCII-IsoDataInterface / Protocol IRDH375B .............................................................................................. RS485 / BMSConnection............................................................................................................................ terminals A/BCable length .............................................................................................................................. ≤ 1200 mRecommended cable (screened, screen on one site connected to PE) ............................ JY(ST)Y 2 x 0.6Terminating resistor ............................................................................................................120 Ω (0.5 W)Device address, BMS bus................................................................................ 1...30 (factory setting = 3)Switching componentsSwitching components ......................................................................................... 3 changeover contacts:.......................................................................................... K1 (Alarm 1), K2 (Alarm 2), K3 (system fault)Operating principle K1, K2 (Alarm 1, Alarm 2) ....................................................... N/O or N/C operationFactory setting (Alarm 1/Alarm 2) ..................................................................................... N/O operationOperating principle K3 ........................................................................................................ N/C operationElectrical endurance ..................................................................................... 12 000 switching operationsContact class ........................................................................................IIB acc. to DIN IEC 60255 part 0-20Rated contact voltage.................................................................................................AC 250 V / DC 300 VMaking capacity.......................................................................................................................... AC/DC 5 ABreaking capacity...........................................................................................2 A, AC 230 V, cos phi = 0.4.................................................................................................................... 0,2 A, DC 220 V, L/R = 0.04 sContact current at DC 24 V ............................................................................................ ≤ 2 mA (50 mW)62 TGH1352en/11.2004