The Yokogawa CT2000A is an AC/DC current sensor that extends the measurement capability of Yokogawa power analyzers and precision power scopes by enabling accurate measurement of currents exceeding the direct input limits of these instruments. Operating across DC to 40 kHz with a 2000:1 transformation ratio, the CT2000A delivers ±(0.05% of reading + 30 μA) basic accuracy and supports both AC and DC measurement modes. The sensor outputs current and connects directly to WT Series Power Analyzers and the PX8000 Precision Power Scope, or to voltage-input instruments via an appropriate shunt resistor.
Technical Specifications
• Measurement Type: AC/DC Current Sensor
• DC Current Range: 0 to 2000 A
• AC Current Range: Up to 3000 A peak
• Frequency Response: DC to 40 kHz (-3 dB)
• Transformation Ratio: 2000:1
• Basic Accuracy: ±(0.05% of reading + 30 μA)
• Output Type: Current output
• Output Connector: B8200JQ (requires separate cable)
• Secondary Wiring: AWG24 or higher recommended; twisted-pair wiring preferred for inverter applications
– Key Features
• Direct integration with Yokogawa WT Series Power Analyzers and PX8000 Precision Power Scope
• Optional /PD2 DC power supply integration for WT1800E and PX8000 instruments
• High linearity across wide dynamic ranges with excellent noise rejection
• Conductor requirement: 25 mm diameter, 300 mm minimum length under basic conditions
• Measurement Category O and II rated; not suitable for Category IV
• Total load resistance must remain within specified limits, including wiring
– Typical Applications
• Hybrid and pure electric vehicle testing
• Battery and energy storage system characterization
• Inverter and motor current analysis
• Railway system power measurement
• Industrial motor monitoring
– Compatibility & Integration
The CT2000A interfaces exclusively with Yokogawa instruments via direct current input connection. When using the /PD2 DC power supply option, output current limitations apply. External DC power supply may be required depending on instrument configuration. Adapter connection to voltage-input instruments requires an appropriate shunt resistor.
