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Model 6517B Electrometer Reference Manual
5. Select the ohms function by pressing the R key.
6. If the manual V-source adjustment mode is selected, use the cursor keys and the VOLTAGE
SOURCE adjustment keys to set the voltage level. The V-source range can be changed from the
RANGE item of the CONFIGURE V-SOURCE menu. Note that you are not able to adjust the V-
source if AUTO V-source is selected.
To avoid a possible shock hazard, do not use a voltage level that exceeds the maximum
input voltage rating of the test fixture.
7. Use the manual RANGE keys ( and ) to select the resistance measurement range, or select
AUTO range. Note that with AUTO range selected, the instrument does not go to the 2 T, 20 T
and 200 T ranges. For optimum accuracy, leakage currents in the test fixture can be cancelled
by performing REL on the current component of the measurement. To cancel leakage current,
see
8. Disable zero check by again pressing Z-CHK and press OPER to source voltage to the DUT. A
flashing VOLTAGE SOURCE OPERATE LED indicates that the V-source has gone into current
limit. The programmed voltage is not being applied to the load. In this situation, try using a lower
voltage for the measurement.
9. Take the reading from the display.
Figure 44: Typical connections for resistance measurements - equivalent circuit
6517B-901-01 Rev. C / August 2015
Cancelling test fixture leakage current
(on page 4-22).
Section 4: Basic measurements
4-21
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