TR-Jr: Fully Automatic, Single Phase Transformer Turns Ratio Meter

The TR-Jr was designed to be a rugged and reliable automatic transformer ratiometer.

This system has a high degree of accuracy and will test ratios to 4000:1.

Range Accuracy at 40V Accuracy at 10V Resolution
0.8 … 2000 ±0.1% Rdg ±0.15% Rdg 5 Digits
2001 … 4000 ±0.2% Rdg ±0.4% Rdg 5 Digits
Current Accuracy   Resolution
0 … 1A ±0.001A   0.1mA
Turns Ratio Range 0.8 to 4000    
Temperature Operating: -10ºC to 60°C (14ºF to 140ºF)
Storage: -20°C to 70°C (-4ºF to 158ºF)

See Instruction Manual for more parameters. Specifications subject to improvement at any time.