Tegam DT72B – Precision Inductive Voltage Divider

The Tegam DT72B is a high-accuracy inductive voltage divider designed for laboratory and calibration environments requiring ultra-stable AC ratio measurements. With exceptional resolution, low linearity error, and NIST-traceable ratio accuracy, it is ideal for calibrating voltage dividers, transformer standards, synchro/resolver equipment, and precision measurement instruments.

Key Features

• Ultra-fine resolution: 0.1 ppm

• Terminal linearity: 0.9 ppm for exceptional measurement consistency

• Wide bandwidth: 50 Hz to 20 kHz

• Large ratio range: –0.0111111 to +1.1111110

• Parallel switching design minimizes contact resistance

• Switch resistors virtually eliminate transient effects

• NIST-traceable ratio accuracy for assured calibration performance

• 1-year warranty

• Assembled in the USA

Benefits

• Provides excellent performance as a precision AC ratio transformer standard

• High stability and accuracy make it ideal for calibrating other AC ratio transformers and metrology equipment

• Suitable for impedance and capacitance comparison applications

Specifications

• Basic Accuracy / Linearity: 0.00009%

• Frequency Range: 50 Hz to 20 kHz

• Ratio Range: –0.0111111 to +1.1111110

• Resolution: 1 × 10⁻⁷