Keithley 6220 Reference Manual page 165

Model 6220/6221 Reference Manual
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Perform one the following steps to configure Pulse Delta: Step I for Fixed
output, or step II for Sweep output.
on page 5-39.
Fixed output – On the Model 6221, press CONFIG and then PULSE to
access the CONFIG PULSE DELTA menu.
Set I-HI, I-LO, pulse WIDTH, COUNT, RANGING, source delay (SRC
DEL), INTERVAL, disable (NO) the SWEEP function, and set the num-
ber of low measurements (LOW MEAS) to perform.
When finished configuring the Fixed output, use the EXIT key to back
out of the menu structure.
Sweep output – Two configure processes are required for Sweep output:
On the Model 6221, press CONFIG and then PULSE to access the
CONFIG PULSE DELTA menu. Use this menu to set pulse WIDTH,
COUNT, set the number of low measurements (LOW MEAS) to per-
form, and enable (YES) the SWEEP function. When finished, use the
EXIT key to return to the normal display state.
On the Model 6221, press CONFIG and then SWP to access the
CONFIGURE SWEEPS menu. Use the TYPE menu item to select and
configure the sweep (including the sweep delay), and use the SOURCE
RANGING menu item to select ranging (BEST, FIXED or AUTO). When
finished, use the EXIT key to return to the normal display state.
Set the measurement units.
The basic Pulse Delta reading is in volts (which is the default units setting).
However, it can instead be expressed (and displayed) as an Ohms, Watts or
Siemens reading. With Watts as the selected units, the reading can be a
Peak power reading or an Average power reading. See
units," on page 5-16 for details.
To set the measurement units, press the UNITS key to display the
READING UNITS menu. Select VOLTS, OHMS, WATTS, or SIEMENS.
When WATTS is selected, you will then be prompted to select the power
units type: AVERAGE or PEAK. Measurement units can be changed while
Pulse Delta is running.
On the Model 622x, press the PULSE key to arm Pulse Delta.
Details on the "Arming
622x is armed when the message "PULSE MODE ARMED Press TRIG to
start" or "PULSE SWEEP ARMED Press TRIG to start" is displayed briefly
and the ARM annunciator turns on.
On the Model 6221, press the TRIG key to start taking Pulse Delta readings
and send them to the buffer.
Return to
Delta, Pulse Delta, and Differential Conductance 5-45
"Configuration
process" are provided on
Section 5 topics
settings" are explained
"Measurement
page 5-42. The Model