TH0340 AC Electrical Resistance Standard

Electrical Calibration Standards

The TH0340 series is a precision reference, temperature-controlled AC resistance standard designed specifically for high-accuracy calibration of AC impedance meters, including LCR meters. By maintaining a stable thermal environment and utilizing advanced reference-grade components, the TH0340 delivers exceptional accuracy, minimal drift, and highly repeatable results under AC measurement conditions.

The built-in temperature-controlled enclosure eliminates the influence of environmental temperature variations, ensuring improved AC characteristics and stable resistance performance over extended operation. This makes the TH0340 ideal for calibration laboratories, production test systems, research facilities, and precision electronic measurement applications.

Compact, lightweight, and battery-powered for extended operational time, the TH0340 offers excellent portability without compromising accuracy—making it suitable for both in-lab calibration benches and on-site verification tasks.

• Temperature-Controlled Design: Ensures stable AC resistance performance by minimizing thermal drift.
• High Accuracy and Stability: Provides precision performance with accuracy as low as ±1.5 ppm and annual drift ≤5 ppm.
• Optimized for AC Calibration: Specially designed for LCR meter calibration and AC impedance verification.
• Battery-Powered Operation: Allows at least 7 hours of continuous use, ideal for portable or field calibration requirements.
• Wide Operating Range: Available in resistance values from 1 Ω to 10 kΩ to meet diverse calibration needs.
• Compact and Lightweight: Only 0.5 kg with a small footprint for easy bench or mobile usage.
• Low Thermal EMF Construction: Ensures reliable and noise-free precision AC measurement.
• Ideal for Metrology Applications: Suitable for national standards labs, calibration centers, and precision electronic testing environments.