Ohms measurements
Resistance readings are calculated from the measured current and measured voltage as follows:
R = V/I
Where:
• R is the calculated resistance
• V is the measured voltage
• I is the measured current
Ohms ranging
The front-panel ohms function does not use ranging. The instrument formats a calculated resistance
reading (V/I) to best fit the display. There may be leading zeros if the ohms reading is less than 1 mΩ.
Basic ohms measurement procedure
When you use the MODE key to select ohms measurement, the 2600B is automatically configured as
a current source with a level of 1 mA. To change the source function, source value, or compliance
value (in other words, customize the standard ohmmeter configuration of the MODE key), then use
the following steps to make ohms measurements. The following procedure assumes that the 2600B is
already connected to the device under test (see “DUT test connections” in the Series 2600B User's
Manual).
The following procedure requires dual-channel instruments (2602B, 2604B, 2612B, 2614B, 2634B,
and 2636B) to be placed in single-channel display mode. For these models, press the DISPLAY key
to select single-channel display mode. See “Display mode” in the Series 2600B User's Manual.
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