Table of Contents
Advertisement
Chapter 7 Measurement Tutorial
Measurement Techniques and Sources of Error
Resistance Measurements
Specific resistance measurement techniques are discussed in the
following sections. You should also consider the techniques and errors
discussed earlier in this chapter.
The 4-wire ohms method provides the most accurate way to measure
small resistances. Test lead resistances and contact resistances are
automatically reduced using this method. The connections for resistance
measurements are shown below. See also "Resistance Measurement
Configuration" on page 68.
V
meter
R
=
I
test
Removing 2-wire Ohm Test Lead Resistance
To eliminate offset errors associated with the test lead resistance in
2-wire ohms measurements, follow the steps below.
1. Short the ends of the test leads together. The meter displays the test
lead resistance.
Null
2. Press
from the front panel. The meter displays "0" ohms with the
leads shorted together.
258
HI-Sense
Ideal
Meter
LO-Sense
- Quick Links:
- To Measure Resistance
Hide quick links:
Advertisement
Table of Contents
