Description
Hioki Clamp On Sensor 9661 for Precise 500 A AC Measurement
The Hioki Clamp On Sensor 9661 is engineered for high-precision AC load current measurement, making it perfect for industrial, commercial, and laboratory applications. Rated at 500 A AC, this sensor provides voltage output for seamless integration with power meters, PQAs, and other data acquisition devices.
Accurate Power Monitoring
With an output rate of 1 mV per ampere, the 9661 allows for real-time monitoring of load currents. Its compact design accommodates conductors up to 46 mm in diameter, making it ideal for tight or complex wiring setups. This sensor delivers consistent and reliable data even under demanding load conditions.
Industrial and Inverter Applications
Designed for inverter devices and commercial power lines, the 9661 ensures high accuracy with ±0.3% amplitude and ±0.5° phase across a frequency range of 40 Hz to 5 kHz. This makes it suitable for precise monitoring of both conventional and modern electrical systems.
Field Use
The sensor operates efficiently in environments ranging from 0°C to 50°C with up to 80% relative humidity. Its 3-meter cord and BNC output terminal simplify connections to measurement instruments, enabling engineers and technicians to perform field measurements quickly and accurately.
Technical Specifications Table
| Specification | Details |
| Product Name | Clamp On Sensor 9661 |
| Measurement Type | AC load current |
| Rated Measurement Current | 500 A AC |
| Maximum Measurement Current | Continuous 550 A |
| Output Signal | 1 mV AC per ampere |
| Amplitude Accuracy | ±0.3% rdg ±0.01% f.s. |
| Phase Accuracy | ±0.5° |
| Amplitude Frequency Characteristics | Within ±1% at 40 Hz – 5 kHz |
| Max Rated Voltage to Earth | 600 V AC rms or less |
| Measurable Conductor Diameter | 46 mm or less |
| Operating Temperature | 0°C to 50°C |
| Operating Humidity | Up to 80% RH (no condensation) |
| Dimensions | 78 mm W × 152 mm H × 42 mm D |
| Weight | 380 g |
| Cord Length | 3 m |
| Output Terminal | BNC |
| Compatible Instruments | Power meters, PQAs, data acquisition systems |
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