True-rms Remote Display Digital Multimeter
How to Make Measurements
17
Resistance Measurements
WCaution
To prevent possible damage to the Meter or to
the equipment under test, disconnect power
and discharge all high-voltage capacitors
before resistance measurements.
The Meter sends a small current through the circuit for
resistance measurements. Because this current flows
through all possible paths between the probes, the
resistance measured is the total resistance of all paths
between the probes.
The resistance ranges are 600.0 Ω, 6.000 kΩ, 60.00 kΩ,
600.0 kΩ, 6.000 MΩ, and 40.00 MΩ.
Set the Meter as shown in Figure 2 to measure resistance.
Below are some hints for resistance measurements:
• The measured value of a resistor in a circuit is
frequently different from the specified resistor value.
• The test leads can add 0.1 Ω to 0.2 Ω of error to
resistance measurements. To measure test lead
resistance, touch the probe points together and read
the resistance.
• The resistance function uses sufficient voltage to
forward-bias silicon diode or transistor junctions, and
cause current to flow. If you think current flows
through the junction, push to apply a lower
current in the next higher range. If the value is higher,
use the higher value. Refer to the Input Parameters
table in the specifications section for typical short-
circuit currents.
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