2558A-Q Current & Voltage Calibrator, Max Voltage 1200V, Max Current 60A

The Yokogawa AC Voltage Current Standard is a high-precision instrument designed for calibrating AC measurement devices such as watt meters, clamp-on testers, and current transformers. It offers a broad output range and frequency flexibility, making it suitable for both manual operation and automated test environments. With intuitive rotary controls and compatibility with existing systems, it streamlines calibration workflows. Its stability and accuracy ensure reliable performance even in demanding industrial and laboratory settings.

Outputs AC voltage from 1.00 mV to 1200.0 V and AC current from 1.00 mA to 60.00 A
Provides fixed and variable frequencies from 40 to 1000 Hz with ±50 ppm accuracy
Enables synchronization of multiple units using internal phase shifter for power calibration
Supports output divider and deviation functions for efficient multi-point meter calibration