Product Overview DC Current Transformer Series
Current or Voltage Output
Closed-loop current transformer technology allows accurate monitoring of DC and AC
bipolar currents up to ±52A with a small PCB-mount device.
Galvanic isolation between primary and secondary conductor for simple current
sensing at different potential.
Standard current output and voltage output (“V”-version) available.
The O-FLUCS (O-FLUx Current Sensor)
and low-noise amplifier are embedded
family is based on a closed loop
in the CT-13V, CT-26V and CT-52V).
• Monitoring of DC and AC currents
technology that allows accurate and
• Excellent Linearity
precise monitoring of DC and AC
• Closed-loop detection
currents with high bandwidth. The metal
• Galvanically isolated from primary
casing guarantees higher noise immunity
• Low Temperature Drift
and reduces undesired noise pick-up
secondary output current, excellent
• Current-output or Voltage-output
from external sources.
linearity and extremely low noise.
Main characteristics of the O-FLUCS
current transformers are negligible
temperature coefficient on the
DC current transformers represent the
• Wide Bandwidth
The transducers CT-13, CT-26 and CT-52
• High Accuracy
are PCB-mount devices rated at
• Status Signal
maximum currents of 13A, 26A and 52A
Hall-effect sensors are used as current
• PCB Mount versions
with primary to secondary ratio of
sensing elements and better
1:250, 1:500 and 1:1000 respectively.
performances are needed.
Galvanic isolation between the primary
ideal replacement for systems where
The compact mechanical dimensions of
• Power Supplies
and the secondary circuits allows to
this transducer series and its limited
• Sensing Element in Calibration Systems
measure currents at a different potential
weight allow for easy mounting on
• Biomedical Devices
and simplifies interfacing when using
printed circuit boards with a Through
• Nuclear Magnetic Resonance (NMR)
the O-FLUCS as the feedback element
Hole (TH) topology. A plastic cover is
of current regulated power supplies.
placed on the bottom side of the device
to allow for easier mounting on the PCB.
Output from the CT-PCB sensors can be
Low Temperature Coefficient
Secondary current measured over 2K temperature-cycling
interval (48h measuring period), 15A primary current
chosen between two different
Main applications for these current
versions: standard secondary current
transducers are precise and stable
output or buffered voltage output (low
regulated power supplies and power
temperature coefficient shunt resistor
Due to the excellent characteristics, the
Commercially available versions of the
CT PCB transducers can be used
CT-13, CT-26 and CT-52 with their
in a variety of calibration, acceptance
respective “V” voltage-output versions
testing and quality control applications
CT-13V, CT-26V and CT-52V.
in industrial, power generation and
automotive fields.
About CAENels Technical Specifica-ons
CT-­‐13 CT-­‐26 CT-­‐52 CAENels is a dynamic company that Current Transform Ra-o -­‐ N
provides power supplies and state-­‐of-­‐the-­‐art Maximum DC Primary Current -­‐ IP(DC)
±13 A
±26 A
±52 A
Maximum RMS Primary Current -­‐ IP(RMS) 9.2 A 18.4 A 36.8 A dedicated electronic systems to the par-cle accelerator community – e.g. synchrotron light sources and Free Electron Laser (FEL) Current Polarity Bipolar facili-es. Maximum DC Secondary Current -­‐ IS(DC) ±52 mA Maximum RMS Secondary Current -­‐ IS(RMS) 37 mA • 
Magnet Power Supply Systems Small Signal Bandwidth ( ±3 dB ) -­‐ BW
> 200 kHz
< 1 ppm (@200 Hz) < 10 ppm (@50 kHz)
Beamline Electronic Instrumenta-on • 
Precision Current Transducers • 
High-­‐Voltage Dedicated Systems Output Voltage Ra-o (“V” version) – VOUT/IP(DC)
MTCA.4 – MicroTCA for Physics Maximum Output Current – “V”-­‐version
Noise RMS – typ. Output Voltage (“V”-­‐version) -­‐ VOUT
Temperature Coefficient – TC (typ.)
CAEN ELS d.o.o.
Kraška ulica, 2
6210 – Sežana
Phone +386 (0)5 7313 585
Fax +386 (0)5 7313 587
[email protected]
Protec-on Signal
±10 V
0.8 V/A
0.4 V/A
0.2 V/A
±15 mA
< 0.5 ppm/K
< 2 ppm/K (“V”-­‐version)
Yes – OK Status
Supply Voltage (± 6%)
±15 V
16-­‐pin through-­‐hole PCB moun-ng Mechanical (Outer) Dimensions
66 × 68 × 48 mm Primary Conductor Internal Maximum Weight
300 g www.caenels.com CT-PCB Voltage Output – “V” Version
DC + 20-kHz sine-wave primary current – i.e. IP [A] – and output voltage of a
CT-13V version – i.e. VO [V]
0-FLUCS Closed–Loop Technology
The CT-PCB current transducer series is based on the
CAEN ELS 0-FLUCS Closed-Loop Technology.
Ordering Op-ons
13A Primary Current O-­‐FLUCS, PCB-­‐Moun=ng 26A Primary Current O-­‐FLUCS, PCB-­‐Moun=ng WCT52VXAAAAA CT-­‐52 52A Primary Current O-­‐FLUCS, PCB-­‐Moun=ng, Voltage-­‐Output WCT13VXAAAAA CT-­‐13V 13A Primary Current O-­‐FLUCS, PCB-­‐Moun=ng, Voltage-­‐Output WCT26VXAAAAA CT-­‐26V 26A Primary Current O-­‐FLUCS, PCB-­‐Moun=ng, Voltage-­‐Output WCT52VXAAAAA CT-­‐52V 52A Primary Current O-­‐FLUCS, PCB-­‐Moun=ng, Voltage-­‐Output Copyright © CAEN ELS d.o.o. – 2014
All rights reserved. Information in this publication
supersedes all earlier versions. Specifications
subject to change without notice.
Rev 1.1 – Printed in April 2014.