Version 3
Released in March 2019
Dr.-Ing. habil. Jigou Liu Technologies GmbH & Co KG
Split Core Hall Effect AC/DC Current Sensor CYHCS-EKT
This Hall Effect current sensor is based on open loop principle and designed with a split core and a
high galvanic isolation between primary conductor and secondary circuit. It can be used for
measurement of AC/DC current etc. The output of the transducer reflects the real wave of the
current carrying conductor. It can be mounted on the primary cable directly.
Product Characteristics Applications
Photovoltaic equipment
Excellent accuracy
Frequency conversion timing equipments
Very good linearity
Various power supply
Light in weight
Uninterruptible power supplies (UPS)
Less power consumption
Electric welding machines
Window structure, easily mounting
Numerical controlled machine tools
Electrically isolating the output of the
Electrolyzing and electroplating equipments
transducer from the current carrying conductor
Electric powered locomotive
No insertion loss
Microcomputer monitoring
Current overload capability
Electric power network monitoring
Electrical Data
Primary Nominal Primary Current Output Voltage Part number
Current Ir (A) Measuring Range Ip(A) (V)
10A 0 ~ ± 20A CYHCS-EKT-10A-n
20A 0 ~ ± 40A CYHCS-EKT-20A-n
2.5V±1V ±1.0%
25A 0 ~ ± 50A CYHCS-EKT-25A-n
50A 0 ~ ± 80A CYHCS-EKT-50A-n
n=2 for power supply: +5VDC; n=3 for power supply: +12VDC
Supply Voltage: Vcc=+12VDC 5% or +5VDC±5%
Current Consumption Ic < 10mA
Isolation Voltage 2,5kV, 50/60Hz, 1min
Output Voltage at Ir, TA=25°C: Vout =2.5V±1V ±1.0%
Reverse Voltage: Vrev=18V >1hr
Output Impedance: Rout < 150
Load Resistor: RL > 4.7k
Accuracy at Ir, TA=25°C (without offset), X <1.0%
Linearity from 0 to Ir, TA=25°C, EL <0.5% FS
Electric Offset Voltage, TA=25°C, Voe = 2.5V±25mV
Magnetic Offset Voltage (Ir 0) Vom <20mV
Thermal Drift of Offset Voltage (Ip=0, -25°C~+85°C), Vot <±0.25mV/°C
Thermal Drift (-10°C to 50°C), T.C. < 0.1% /°C
Response Time at 90% of IP (f=1k Hz) tr < 7µs
Frequency Bandwidth (-3dB), fb = DC-2.2 kHz
General Data
Ambient Operating Temperature, TA =-40°C ~ +85°C
Ambient Storage Temperature, TS =-55°C ~ +100°C
Unit weight: 21g / unit
Markt Schwabener Str. 8 Tel.: +49 (0)8121 – 2574100
D-85464 Finsing Fax: +49 (0)8121– 2574101
Germany Email: info@cy-sensors.com
http://www.cy-sensors.com
Version 3
Released in March 2019
Dr.-Ing. habil. Jigou Liu Technologies GmbH & Co KG
PIN Definition and Dimensions
Filling and
sealing surfaces
1) Pin arrangement:
1 (V+): +12V
2 (NC): NC
3 (OUT): OUTPUT
4 (GND): 0V (GND)
1 2 3 4
2) Pin arrangement:
1 (NC): NC
2 (V+): +5VDC
3 (OUT): OUTPUT
4 (GND): 0V (GND)
1 2 3 4
Vcc: +12VDC (NC)
NC (+5VDC)
CYHCS-EKT
Output
Vo V
GND o
Notes:
1. Connect the terminals of power source, output respectively and correctly, never make wrong
connection.
2. Two potentiometers can be adjusted, only if necessary, by turning slowly to the required accuracy with
a small screwdriver.
3. The best accuracy can be achieved when the window is fully filled with bus-bar (current carrying
conductor).
4. The in-phase output can be obtained when the direction of current of current carrying conductor is the
same as the direction of arrow marked on the transducer
Markt Schwabener Str. 8 Tel.: +49 (0)8121 – 2574100
D-85464 Finsing Fax: +49 (0)8121– 2574101
Germany Email: info@cy-sensors.com
http://www.cy-sensors.com
