1-6 Performance Verification
• Make sure the Model 2430 is set to the correct source range (see below).
• Ensure that the Model 2430 output is turned on before making measurements.
• Ensure the test equipment is set up for the proper function and range.
• Allow the Model 2430 output signal to settle before making a measurement.
• Do not connect test equipment to the Model 2430 through a scanner, multiplexer, or
other switching equipment.
WARNING The maximum common-mode voltage (voltage between LO and chassis
ground) is 250V peak. Exceeding this value may cause a breakdown in
insulation, creating a shock hazard.
CAUTION The maximum voltage between INPUT/OUTPUT HI and LO or 4-WIRE
SENSE HI and LO is 125V peak. The maximum voltage between INPUT/
OUTPUT HI and 4-WIRE SENSE HI or between INPUT/OUTPUT LO
and 4-WIRE SENSE LO is 5V. Exceeding these voltage values may result
in instrument damage.
Setting the source range and output value
Before testing each verification point, you must properly set the source range and output val-
ue as outlined below.
1. Press either the SOURCE V or SOURCE I key to select the appropriate source function.
2. Press the EDIT key as required to select the source display field. Note that the cursor will
flash in the source field while its value is being edited.
3. With the cursor in the source display field flashing, set the source range to the lowest
possible range for the value to be sourced using the up or down RANGE key. For exam
-
ple, you should use the 20V source range to output a 20V source value. With a 20V
source value and the 20V range selected, the source field display will appear as follows:
Vsrc:+20.0000 V
4. With the source field cursor flashing, set the source output to the required value using
either:
• The SOURCE adjustment and left and right arrow keys.
• The numeric keys.
5. Note that the source output value will be updated immediately; you need not press
ENTER when setting the source value.
Setting the measurement range
When simultaneously sourcing and measuring either voltage or current, the measure range is
coupled to the source range, and you cannot independently control the measure range. Thus, it
is not necessary for you to set the measure range when testing voltage or current measurement
accuracy.
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