THE new Quadtech LR2000 precision low resistance and ohm meter, available from Power Parameters , is specifically designed to overcome artifacts in resistance measurements including thermo-electric effects, device heating, and dry-contacts.
This is achieved through the choice of current sources: dc+, dc-, Pulse+, Pulse-, Pulse+/- with open circuit voltage limitation to 20mV or less for low resistance values to 20Ω.
The basic accuracy of 0.05% is achieved in part through the use of 4-wire Kelvin connection of the device under test. The nine measurement ranges cover resistance values from 20mΩ FS to 2MΩ FS. Measurement rate is selectable from 15, 6 and 1.5 measurements/sec with measurements initiated by internal, manual or external trigger. The Quadtech LR 2000 is readily integrated in automated production testing via the standard RS 232 interface, or optional IEEE 488-handler interface option. Hi/lo value limits permit the use of up to 8 bins in the connected handler.