Y E A R G U Loop Powered Isolators 420I The 420I loop powered isolator generates a second isolated loop from an existing loop. Power is derived from the input signal. No external power supply is required. Low voltage drop High accuracy 1kV isolation High noise immunity Low cost solution Options and ordering codes 420 I-AA XX - 8 Wiring diagram The voltage drop, Vd, across the device at 20mA input is: Input Output V = 3.2 + (RL x 0.02) 4-20mA 4-20mA I-AA d 4-20mA 1-5 Volts I-AF Supply 4-20mA 0-10 Volts V-AG Loop powered 8 L 4-20mA Vd R Description Dimensions and connections 63mm Three output options are available: 4-20mA, 1-5V and the 420V which gives a 0-10V output from a 4-20mA existing loop input, whilst dropping just 5V from the input loop. 1. Output Ch +ve 12 2. Output Ch -ve The isolator is typically used to enable two control and instrumentation 3. Input Ch +ve devices, e.g. PLC and local chart recorder, with non-isolated inputs, to monitor 4. Input Ch -ve the same transmitter output simultaneously. Alternatively the isolator can be used to isolate signals from non-isolated transmitters or as a noise reduction device. Other considerations 34 The 420I requires a load on the output to complete the current loop. See the drawing opposite to calculate the voltage drop V , across the device. d Specification Parameter Min Typ Max Comments Supply voltage Loop power Input current -50mA 0-20mA +50mA Full scale volt drop see note 3.2V 3.5V At 20mA input Output linearity error 0.1% Temp coefficient 90ppm/C Load resistance error -200nA/ 0<R <600 L Time constant (10-90%) 30ms Operating ambient -15C 70C Relative humidity 0% 90% Isolation voltage 1kV Surge voltage 2.5kV for 50S Transient of 10kV/S Mounting Standard DIN-rail TS32/35 Notes Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur Device is protected against reverse polarity connection Accuracy figures based on 0-20mA input, 150 load resistance, and an ambient temperature of 20C Add volt drop due to load: 0.02 x RL e.g. 250 load total volt drop = 3.5 + (0.02 x 250) = 8.5V 420I/03/03 www.imopc.com A R A N T E E 18mm 58mmX-ON Electronics Largest Supplier of Electrical and Electronic Components Click to view similar products for imo manufacturer: Other Similar products are found below : 20.155MV/12-E MC14N-S-10110AC MB09-S-10=24 DPS-1-030-24 SRF-1C-SL-12VDC MB09-S-1024 LDC18RRS SFSYE0111 21.1500M/6-E 20.3304M/2-E 21.910M/5-E 20.95MA/2-E 21.95MHF/2-E PE69-4032 DPS-1-060-24 CS20A-A2 CS20A-U1 VFC02 MSSTC11DA06 20.95MHF/3-E B3T10 XKL-040-21 20.3304M/4-E SRDH-1A-SL-24VDC 20.2500M/5-E 21.155MH/12 SRRHN-2CN- SL-12VDC QYE21XXF24DC 20.920M/5-E MC10N-S-10110AC 21.1550MF/8-E 20.910M/6-E 20.95MH/3-E 21.95MV/3 MA05-S- 01230AC SRRHN-2CN-SL-5VDC LB69-4040 20.3001M/6 21.1500M/3-E 21.95MHF/6-E 20.95MV/2-E 20.155MV/4-E 20.950M/2-E MT5 1-50-FAR BS3P3REDO MB12-S-10=24 MA05-S-1024DC 20.155MVF/8-E 20.3302M/4-E 20.910M/3-E