Model 4431T Shielded Bag Test System - Operating Manual
20
D00003 Rev. K.
7.1.7 Quite often profiles are repetitive and duplicate a previous test. To use a profile you have used
before, simply call up the Test Report from that test (See section 7.5), which populates the desired
profile fields, then click on BACK to return to the Operator screen, and start a new test. CAUTION: This
shortcut saves time, but make sure to update any dates, etc. which have changed.
7.1.8 When you have completed the profile information, click “START TEST” again.
7.1.9 The system will initialize the scope and the 4431 hardware. This is a point at which you may see
USB messages. If so, check that both USB cables are firmly plugged into the laptop, and see Appendix
A for more information.
7.2 CALIBRATION.
You will then be asked to “Remove sample and close latch”. Make sure t h e r e i s no sample is in
the clamp and the clamping lever is down, then click “START TEST”.
7.2.1 The screen will switch to a preview screen to do the Calibration Waveform.
IF
the system is in MONITORED mode, you will be asked to create a discharge by pressing the
red “TEST” button on the 4431 Discharge Unit.
IF
the system is in CONTINUOUS mode, the Cal discharge and waveform capture will occur
automatically
7.2.2
This creates a direct measurement of the discharge, and produces the characteristic exponential
plot, confirming proper operation of the electronics as shown below. This plot should show a peak above
420 milliAmps, and an energy total of 50,000 nanoJoules, + 3,000 nJ.
Figure 7-10. Preview Screen showing Cal Waveform
