The ST1000 is designed to measure the earth electrode resistance of Single Wire Earth Return Systems.
It uses the SWER transformer (isolation or distribution) load currents to provide the measurement signals and accepts two CT inputs and one voltage input.
Click on each of the specifications to learn more.
Range: 10 mΩ - 1,999 Ω
High resolution as little as 1 mΩ
Less than +/-0.5% ± 2 digits error for high accuracy
Input impedance on voltage channel: 2 MΩ
Input voltage ranges 5VRMS, 50VRMS and 300VRMS
Current inputs voltage range 3VRMS max
Selectable operating frequency
Reflective monochrome graphical LCD
Integrated SLA battery