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Measurements and Sourcing Voltage
3-11
Programming example
— ohms measurements
The following command sequence will perform one zero-corrected resistance measurement:
*RST
' Return 6487 to GPIB defaults.
FORM:ELEM READ,UNIT
' Measurement, units elements only.
SYST:ZCH ON
' Enable zero check.
RANG 2e-9
' Select the 2nA range.
INIT
' Trigger reading to be used as zero
' correction.
SYST:ZCOR:ACQ
' Use last reading taken as zero
' correct value.
SYST:ZCOR ON
' Perform zero correction.
RANG:AUTO ON
' Enable auto current range.
SOUR:VOLT:RANG 10
' Select 10V source range.
SOUR:VOLT 10
' Set voltage source output to 10V.
SOUR:VOLT:ILIM 2.5e-3
' Set current limit to 2.5mA.
SENS:OHMS ON
' Enable ohms function.
SOUR:VOLT:STAT ON
' Put voltage source in operate.
SYST:ZCH OFF
' Disable zero check.
READ?
' Trigger and return one reading.
Voltage source operation
Configuring the voltage source
Press CONFIG then OPER to set the voltage source mode. You will first be prompted to
choose DC or SWEEP mode. (Select DC for normal operation. See Section 6 for details
on sweeps.) After the mode is selected, the display shows a full-resolution value of the
voltage source with the left-most position highlighted for editing. (If you do not wish to
change the mode, you can jump right to this voltage edit display by pressing either V-
SOURCE adjustment arrow). The
and
arrows are used to select the digit being edited,
and the
V-SOURCE
and
arrows change the value. The RANGE
and
arrows change the
voltage source range and indicate the range selected. Note that the V-SOURCE
and
keys will operate in the same manner as the RANGE
and
keys if they are not being
used to change the voltage source value.
Voltage values are changed immediately from this configuration by pressing the arrow key.
The digits will not increment beyond the maximum voltage for the selected range.
After the voltage value and range are selected press EXIT to return to normal readings dis-
play, or press ENTER to advance to the current limit display. The current limit display
offers different choices depending on the source range (refer to
). Pressing
ENTER or EXIT from this display returns you to the normal readings display.
Summary of Contents for 6487
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Page 35: ...1 20 Getting Started Model 6487 User s Manual...
Page 47: ...2 12 Connections Model 6487 User s Manual...
Page 61: ...3 14 Measurements and Sourcing Voltage Model 6487 User s Manual...
Page 85: ...7 8 Remote Operation and Commands Model 6487 User s Manual...
Page 86: ...A Specifications...
Page 88: ...B GeneralMeasurement Considerations...
Page 94: ...C ExamplePrograms...
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