Agilent Technologies N3280A User Manual Page 86

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B - Performance and Calibration Procedures
86
Voltage Priority Tests
Voltage Programming and Readback Accuracy
These tests verify that the voltage programming and GPIB readback functions are within specifications.
Action Program Commands
1. Reset the dc source and connect a DVM as shown in Figure B-1a.
Connect the DVM directly across the HI and LO sense terminals.
(*RST resets the dc source to its default settings with the output off.)
“*RST”
2. Turn on the dc source and program the current limit to 0.5125A.
Measure the output voltage and current.
“OUTP ON,(@1)”
“CURR:LIM 0.5125,(@1)”
“MEAS:VOLT? (@1)”
“MEAS:CURR? (@1)”
3. Set the DVM to the 10V range, and record the output voltage reading.
The DVM reading and measurement query result should be within the
limits specified in the performance test record card under Voltage
Priority Programming Accuracy @0V and Readback Accuracy @0V.
(The current measurement query result should be approximately zero.)
4. Program the output voltage to full-scale positive output. Measure the
output voltage.
“VOLT 10,(@1)”
“MEAS:VOLT? (@1)”
5. Record the output voltage reading on the DVM. The DVM reading
should be within the limits specified in the test record card under
Voltage Priority Programming Accuracy @ +10V. The
difference
between the DVM reading and the measurement query result should
be within the limits specified under Readback Accuracy @ +10V.
6. Program the output voltage to full-scale negative output. Measure the
output voltage.
“VOLT -10,(@1)”
“MEAS:VOLT? (@1)”
7. Record the output voltage reading on the DVM. The DVM reading
should be within the limits specified in the test record card under
Voltage Priority Programming Accuracy @
-10V. The difference
between the DVM reading and the measurement query result should
be within the limits specified under Readback Accuracy @
-10V.
Positive Current Limit (+CL)
Action Program Commands
1. Reset the dc source and connect an ammeter directly across the HI and
LO terminals as shown in Figure B-1a.
(*RST resets the dc source to its default settings with the output off.)
“*RST”
2. Turn on the dc source and program the output voltage to 10 volts.
(The default output current limit is set to 1mA.)
“OUTP ON,(@1)”
“VOLT 10,(@1)”
3. Set the ammeter to the 1mA range, and record the output current
reading on the ammeter. The ammeter reading should be within the
limits specified in the performance test record card under Voltage
Priority Programming Accuracy + 1mA Current limit.
4. Program the output current limit to 0.5A. Measure the output current.
“CURR:LIM 0.5,(@1)”
“MEAS:CURR? (@1)”
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