Instructions

Table Of Contents
6: Measuring 4-wire resistance with offset compensation Model DMM6500 6½ Digit Multimeter
6-2 DMM6500-900-01 Rev. B / August 2019
Equipment required
One DMM6500
One computer set up for communication with the instrument
Four insulated banana cables
One device to be tested (the application shown uses a 20 Ω resistor)
Device connections
This example application uses the DMM6500 to perform a 4-wire resistance-device measurement
using offset compensation. Both the front and rear-panel connections are safety banana jacks. You
can use either the front or the rear input terminals.
You must use either the front or the rear terminals. You cannot mix the front and rear connections.
Make sure that the front-panel TERMINALS switch is set to the terminals you are using. The light for
FRONT or REAR indicates which terminals are being used.
To use the 4-wire connection method:
1. Connect one set of test leads to the INPUT HI and INPUT LO terminals.
2. Connect the other set of test leads to the SENSE HI and SENSE LO terminals.
Figure 35: Front-panel connections for 4-wire resistance measurements