Prodigit 3350F Series, Руководство по эксплуатации

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3350F Series Operation Manual 43
V-Lo : Short test voltage check lower limitation setting, The LCD display shows
「
SHORT
」
on left 5 digit LCD display, Middle 5 digit LCD display
「
V-Lo
」
,right 5
Digit LCD display setting value, the unit is "V", the V-Hi setting range from 0.000V to
60.000V step 0.001V by rotating the setting knob.
Once the test parameters have been entered the test is started by pressing the red
START/STOP button while the SHORT PRESS START text is displayed.
During the test the bottom LCD will show run and the actual short Current will be
Displayed on the middle LCD.
Note 1: The message PASS END will be displayed if the measured voltage levels
Stays within the V_Hi and V_Lo threshold levels during the test
Note 2: The message FAIL END will be displayed if the measured voltage levels
Fall outside the V_Hi and V_Lo threshold levels during the test. The NG flag
Will also illuminate.
Note 3: If continuous short time is selected the test is ended by pressing the red
START/STOP button.
3.2.18. Key and LED
The OCP key allows the parameters of an Over Current Protection test to be
entered. The OCP test will ramp up the load current in steps to validate the Device
Under test’s (DUT) protection and behavior. A voltage threshold level can be set. If
the voltage measured during the test is lower than the set Threshold voltage then
the test will fail and the display will signal OCP ERROR. Similarly a current
Threshold (I STOP) can be set. If the measured
Current reaches the I STOP Threshold the test will be discontinued and the OCP
ERROR message will be displayed.
Pressing the OCP key once will cause the button to illuminate. The message
“OCP PRESS START” will be shown across the 3 displays.
Each press of the OCP button moves the menu on one step. The left and Middle
LCDs show the currently selected test parameter as text. The value is adjusted by
the rotary knob and can be read from the right display during Setting.
The setting sequence is shown below:
OCP PRESS START (pressing the red start/stop key starts test)
OCP I STAR (current starting point of the OCP test)
OCP I STEP (value of incremental current steps from I START)
OCP I STOP (the OCP test’s upper current threshold
OCP Vth (the voltage threshold setting)
Exit OCP test set-up
OCP