6517B-900-01 Rev. A / Jun 2008
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4-9
Model 6517B Electrometer User’s Manual
Section 4: Measurement Options
Basic operation
Basic operation simply consists of setting the V-Source level and placing the V-Source in
OPERATE to output the voltage. Other V-Source operations are performed from the CONFIGURE
V-SOURCE menu (see
for more information) to select range (100V or
1000V), set voltage limit, select resistance current limit, and control the LO-to-LO connection
between the V-Source and the ammeter.
Setting V-Source level:
The V-Source level is set with the instrument in the normal measurement
mode. The
VOLTAGE SOURCE
and
keys, and the cursor keys ( and ) are used to
adjust the voltage level. Pressing any one of these four keys will enable the V-Source edit mode.
The flashing digit on the V-Source display indicates the cursor position. Use the cursor keys to
place the cursor on the desired digit, and use the
VOLTAGE SOURCE
and
keys to adjust
the level. Polarity can be changed by placing the cursor on the polarity sign, and pressing
VOLTAGE SOURCE
and
.
Sourcing voltage:
The displayed voltage level is applied to the output terminals when the
instrument is placed in operate by pressing the
OPER
key. In operate, the VOLTAGE SOURCE
OPERATE indicator is on. Pressing
OPER
a second time places the V-Source in standby.
Configuring V-Source
Perform the following steps to configure the V-Source:
1.
Press
the
CONFIG
key and one of the
VOLTAGE SOURCE
keys to display the following
configuration menu:
RANGE:
Select the 100V range or 1000V range.
V-LIMIT:
Control (on/off) and set a voltage limit (absolute value).
RESISTIVE LIMIT:
Control (on/off) the resistive (1M
Ω
) current limit.
METER CONNECT:
Control (on/off) the internal connection between V-Source LO and
ammeter LO.
2.
Use the menu items to configure the V-Source. A menu item is selected by placing the
cursor on it and pressing
ENTER
. Options for a menu item are selected in the same way.
Parameter values are changed using the cursor keys
(
and
)
and the
RANGE
keys
(
and
)
, and then pressing
ENTER
.
3.
Use
the
EXIT
key to back out of the menu structure.
Relative
Rel subtracts a reference value from actual readings. When rel is enabled, the instrument uses the
present reading as a relative value. Subsequent readings will be the difference between the actual
input value and the rel value.
Actual Input – Reference = Displayed Reading
The rel (relative) operation is enabled by pressing the
REL
key (REL annunciator turns on).
Pressing
REL
a second time disables rel. You can also enter and enable a rel value from the
CONFIG-REL display.
A rel value can be established for each measurement function. The state and value of rel for each
measurement function are saved when changing functions. Once a rel value is established for a
measurement function, the value is the same for all ranges.
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