Cv Mode Tests - Keysight N3300A User Manual

7. Checking low current range, low current point. Press [ CURR ] [ 1 ] (for N3303A press [ CURR ] [ 0.1 ] ) [Enter].
Press [ CURR ]. Scroll until display reads C:RANG, press [ 1 ] [ Enter ]. Press shift key then [ Sense ]. Scroll until
display reads S:C:RNG press [ 1 ] [ Enter ]. Wait 10 seconds then record the actual input current ( DVM reading /
current shunt resistance ) and front panel current reading on the test record card under low current range low current.
8. Checking low current range, high current point. Press [ CURR ] [ select current from following table ] [ Enter ].
N3302A N3303A
3A 1A
9. Wait 30 seconds then record the actual input current ( DVM reading / current shunt resistance ) and front panel
current reading on the test record card under high current range high current.
CC Mode Regulation Test
This test verifies the Input Current remains within specification when the input voltage is changed from a low
voltage to rated voltage.
1. Connect the Electronic Load, power source, DVM and current shunt as shown in figure B-2.
2. Turn on the Electronic Load and press [ Recall ]. Scroll until display reads *RST and press [ Enter ].
3. Press [ CURR ] [ select current from following table ] [ Enter ].
N3302A N3303A
2.5A 1A
4. Turn on the power source. Set the power source voltage and current to the values listed in following table.
Power Source Voltage Setting
Power Source Current Setting
5. Wait 10 seconds, then record input current reading ( DVM reading / current shunt ).
6. Reset the power source voltage level to value listed in following table.
Power Source Voltage Setting
7. Wait 10 seconds, then record input current reading ( DVM reading / shunt resistance ).
8. Subtract reading in step '7' from step '5'. Absolute value of difference should be less than specification.

CV Mode Tests

These tests verify that the module operates in the CV mode and that voltage programming and readback to the
front panel display are within specification. Values read back over the GPIB are the same as those displayed on
the front panel. To read back the voltage value via the GPIB, use the command MEAS:VOLT:ACDC?
Voltage Programming and Measurement Accuracy Test
This test verifies that voltage programming and voltage measurement accuracy are within specification. Make a
copy of the module test card for the model being tested to record test values.
1. Connect the Electronic Load, Power source and DVM as shown in figure B-3. Be sure + sense and – sense are
connected to the +/- input terminals and the remote/local button is in the remote position.
2. Turn on the Electronic Load and press [ Recall ]. Scroll until display reads *RST and press [ Enter ].
3. Press [ Func ]. Scroll until display reads FUNC VOLT then press [ Enter ].
4. Turn on the power source. Set the power source voltage and current to the values listed in the following table.
N3304A N3305A
6A 6A
N3304A N3305A
5A 3.3A
N3302A N3303A
4V 4V
5A 5A
N3302A N3303A
60V 240V
Performance Test and Calibration - B
N3306A N3307A
12A 3A
N3306A N3307A
10A 1.6A
N3304A N3305A
4V 4V
10A 10A
N3304A N3305A
60V 150V
N3306A N3307A
4V 4V
20A 5A
N3306A N3307A
60V 150V
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