Product Overview DC Current Transformer Series PCB Mount Current or Voltage Output Closed-loop current transformer technology allows accurate monitoring of DC and AC bipolar currents up to ±26A with a small PCB-mount device. Galvanic isolation between primary and secondary conductor for simple current sensing at different potential. Standard current and voltage (“V”-version) output available. Features t Monitoring of DC and AC currents t Excellent Linearity t Closed-loop detection t Galvanically isolated from primary t Low Temperature Drift t Current-output or Voltage-output versions t Wide Bandwidth t High Accuracy t PCB Mount versions Applications t Power Supplies t Sensing Element in Calibration Systems t Biomedical Devices t Nuclear Magnetic Resonance (NMR) CT-26 Current Transducer Secondary current measured over 2K temperature-cycling interval (48h measuring period), 15A primary current. The O-FLUCS (O-FLUx Current Sensor) is based on a closed loop technology that allows accurate and precise monitoring of DC and AC currents with high bandwidth. The metal casing guarantees higher noise immunity and reduces undesired noise pick-up from external sources. The transducers CT-13 and CT-26 are PCB-mount devices rated at maximum currents of 13A and 26A with primary to secondary transformation ratio of 1:250 and 1:500 respectively. Galvanic isolation between the primary and the secondary circuits allows to measure currents at a different potential and simplifies interfacing if using the O-FLUCS as the feedback element of current regulated power supplies. Output from the O-FLUCS sensors can be chosen between two different versions: standard secondary current output or buffered voltage output (low temperature coefficient shunt resistor and low-noise amplifier are embedded in the CT-13V and CT-26V versions). Main characteristics of the O-FLUCS current transformers are negligible temperature coefficient on the secondary output current, excellent linearity and extremely low noise. DC current transformers represents the ideal replacement for systems where Hall-effect sensors are used as current sensing elements and better performances are needed. The compact mechanical dimensions of this transducer series and its limited weight allows easy mounting on printed circuit boards with a Through Hole (TH) topology. A plastic cover is placed on the bottom side of the device to allow easier mounting on the PCB. Main application fields for these current transducers are precise and extremely stable regulated power supplies and power inverters. Due to the excellent characteristics, the O-FLUCS transformers can be used mers are the current-output CT-13 and CT-26 with their respective “V” voltageoutput versions CT-13V and CT-26V. in a variety of calibration, acceptance testing and quality control applications in the industrial and automotive fields. Commercially available versions of the PCB-mount O-FLUCS current transfor- About CAENels CAENels is a dynamic company that provides power supplies and state-of-the-art dedicated electronic systems to the particle accelerator community - e.g. synchrotron light sources and Free Electron Laser (FEL) facilities. t .BHOFU1PXFS4VQQMZ4ZTUFNT t #FBNMJOF&MFDUSPOJD*OTUSVNFOUBUJPO t 1SFDJTJPO$VSSFOU5SBOTEVDFST t )JHI7PMUBHF%FEJDBUFE4ZTUFNT CAEN els d.o.o. Kraška ulica, 2 6210 - Sežana Slovenija Technical Specifications Current Transformer Ratio - N Maximum DC Primary Current - IP(DC) Maximum RMS Primary Current - IP(RMS) Maximum DC Secondary Current - IS(DC) Maximum RMS Secondary Current - IS(RMS) Small Signal Bandwidth ( ±3 dB ) - BW Output Voltage (“V”-version) - VOUT Output Voltage Ratio – VOUT/IP(DC) Maximum Output Current – “V”-version Temperature Coefficient – TC Protection Signal Supply Voltage (± 6%) Mounting Mechanical Dimensions Maximum Weight 1:250 1:500 ±13 A ±26 A 9.2 A 18.4 A ±52 mA 37 mA > 200 kHz ±10 V 0.8 V/A 0.4 V/A ±15 mA 2 ppm/K Yes - Primary Over-Current ±15 V 16-pin through-hole PCB mounting 66 × 65 × 50 mm 220 g Phone +386 (0)5 7313 585 Fax +386 (0)5 7313 587 [email protected] www.caenels.com O-FLUCS – CT-model Bottom view Voltage Output – “V” Version 20-kHz sine-wave primary current – i.e. IP [A] – and output voltage on a CT-13V version – i.e. VO [V]. Copyright © CAENels d.o.o. - 2013 All rights reserved. Information in this publication supersedes all earlier versions. Specifications subject to change without notice. Printed in May 2013