Keithley 6517A Getting Started Guide

1-16 Front Panel Operation Model 6517A Getting Started Manual
Auto V-Source
Auto V-Source should be used to achieve optimum accuracy for ohms measurements. With
Auto V-Source selected, the V-Source is automatically set for either 40V or 400V. For the
2M Ω through 200G Ω ranges, the V-Source is set to 40V. For the 2T Ω through 200TΩ
ranges, a 400V test voltage is used. With Manual V-Source selected, you can manually set
the voltage level of the V-Source.
Perform the following steps to select the V-Source mode for the ohms function:
1. Press CONFIG and then R to display the ohms configuration menu.
2. Use the
 and  keys to place the cursor (blinking menu item) on VSOURCE and
press ENTER.
3. Place the cursor on AUTO (Auto V-Source ohms) or on MANUAL (Manual
V-Source ohms) and press ENTER.
4. Use the EXIT key to back out of the menu.
Amps Rel
Amps Rel is used to cancel leakage current in a test fixture for ohms measurements. Per-
form the following steps:
NOTE This procedure assumes that steps 1 through 4 of the Resistance Measurement
procedure have been performed.
1. With the V-Source in standby, remove the DUT from the test fixture.
2. Select the amps (I) function and disable zero check. Make sure REL is disabled.
3. Place the V-Source in operate by pressing OPER. The VOLTAGE SOURCE
OPERATE indicator is on when in operate.
4. Select the lowest possible measurement range to display the leakage current in the
test fixture.
5. Enable relative (REL annunciator on) by pressing REL. This zeroes the display,
cancelling the leakage current reading.
6. Press OPER to place the V-Source in standby and enable zero check.
7. Perform the following steps to establish the amps Rel value for the ohms function.
a. Press CONFIG and then R to display the ohms configuration menu.
b. Use the  and  keys, place the cursor (blinking menu item) on AMPSREL
and press ENTER.
c. Place the cursor on YES and press ENTER to use the amps Rel value for the
ohms measurement.
d. Use the EXIT key to back out of the menu.
8. Re-install the DUT in the test fixture.
9. Select the ohms function (R) and proceed to step 5 of the Resistance Measurement
procedure.

Keithley 6517A Specifications

General

Brand	Keithley
Model	6517A
Category	Measuring Instruments
Language	English