In this section:
Constant current verification tests ............................................ 4-1
Constant current (CC) verification tests
There are four verification tests in this series. These tests verify display panel accuracy, verify
programmed voltage, measure output voltage changes based on load or no load, measure output
voltage based AC line voltage changes, and measure output noise.
Current programming and measurement accuracy verification
This test verifies that the current programming and measurement functions are within specifications.
Hazardous voltages may be present on all output and guard terminals. To prevent electrical
shock that could cause injury or death, never make or break connections to any of the
instruments used for this verification test while instruments are powered on. Turn off the
2260B instrument from the front panel or disconnect the main power cord from the rear of
the instrument before handling cables. Putting the equipment into an output-off state does
not guarantee that the outputs are powered off if a hardware or software fault occurs.
Precautions must be taken to prevent a shock hazard by surrounding the test device and
any unprotected leads (wiring) with double insulation for up to 800 volts depending on the
power supply that you have, Category I.
Figure 5: 2260B Current analog adjustment devices
Section 4
Constant current verification