Keithley 6430 User Manual

18-12 Performance Verification
Mainframe voltage measurement accuracy
Follow the steps below to verify that Model 6430 mainframe voltage measurement accuracy
is within specified limits. The test involves setting the source voltage to full-range values, as
measured by a precision digital multimeter, and then verifying that the Model 6430 voltage
readings are within required limits.
1. With the power off, connect the digital multimeter to the Model 6430 INPUT/OUTPUT
jacks as shown in Figure 18-2. (Connect Model 6430 INPUT/OUTPUT HI to DMM
INPUT HI; INPUT OUTPUT LO to INPUT LO.)
2. Select the multimeter DC volts function.
3. Set the Model 6430 to both source and measure voltage by pressing the SOURCE V
and MEAS V keys, and make sure the source output is turned on.
4. Verify output voltage accuracy for each of the voltages listed in Table 18-4. For each
test point:
• Select the correct source range.
• Set the Model 6430 output voltage to the indicated value as measured by the digital
multimeter.
• Verify that the Model 6430 voltage reading is within the limits given in the table.
NOTE It may not be possible to set the voltage source to the specified value. Use the closest
possible setting, and modify reading limits accordingly.
5. Repeat the procedure for negative source voltages with the same magnitudes as those
listed in Table 18-4.
Mainframe output current accuracy
Follow the steps below to verify that Model 6430 output current accuracy is within specified
limits. The test involves setting the output current to each full-range value and measuring the
currents with a precision digital multimeter.
Table 18-4
Mainframe voltage measurement accuracy limits
Model 6430 source
and measure range
1
Source voltage
2
Model 6430 voltage reading
limits (1 year, 18°-28°C)
200mV
2V
20V
200V
200.000mV
2.00000V
20.0000V
200.000V
199.626 to 200.374mV
1.99941 to 2.00059V
19.9955 to 20.0045V
199.960 to 200.040V
1
Measure range coupled to source range when simultaneously sourcing and measuring voltage.
2
As measured by precision digital multimeter.

Keithley 6430 Specifications

General

Brand	Keithley
Model	6430
Category	Measuring Instruments
Language	English