• Rated current 20A AC/DC
• Frequency Bandwidth DC to 2 MHz
• Single-handed operation and robust locking mechanism
• Ideal for use in environmental testing with a broad -40°C - 85°C temperature range
• Ideal for EV inverter evaluation and PV power generation PCS evaluation 

The Hioki CT6841A is a high-precision 20A AC/DC clamp-type current sensor with DC to 2 MHz frequency bandwidth. Hioki's clamp-type AC/DC current sensors can be connected directly to Hioki Power Analyzers and Memory HiCorders. Also, it can be connected to Power Meters, Oscilloscopes, DMMs, etc. by using an optional sensor unit (sold separately). The CT6841A is designed to measure AC and DC currents of up to 20 A at a high level of precision. This, which has excellent frequency characteristics (amplitude, phase) and temperature characteristics (sensitivity, offset voltage), can be used to measure power with high precision as well as current.

Clamp-type sensors are quick and easy to connect, and used for testing finished products, an application where it is difficult to cut wires. Capable of functioning at temperatures from -40°C to 85°C, they’re used in high-temperature environments such as engine compartments.

The CT6840A series can measure current in operating vehicles since there’s no need to cut cables. Combined with a power analyzer, these instruments can accurately integrate current and power during the charging and discharging of system batteries in order to make WLTP-compliant fuel efficiency measurements.

Temperature characteristics are an issue for current sensors that can manage DC currents. The CT6840A series uses the flux gate detection method. Unlike the standard Hall element detection method, the flux gate method is more resistant to temperature variations, allowing instruments to accurately measure current in a variety of test environments.