-
14
-
USING THE OSCILLOSCOPE OPTION
Connect the oscilloscope cable as shown.
Place the function switch in the PRV position and press the
“
TEST
”
button.
Slowly increase the voltage while observing the Peak Voltage and Peak
Leakage Current on the panel meters
In a properly functioning device, the rated voltage should be reached before
the current starts to rise
rapidly
, (the
“
break
-
over point
”),
which can be
seen on the oscilloscope display.
Place the function switch in the PFV position and press the
“
TEST
”
button.
Slowly increase the voltage while observing the Peak Voltage and Peak
Leakage Current on the panel meters
In a properly functioning device, the rated voltage should be reached before
the current starts to rise
rapidly
, (the
“
break
-
over point
”),
which can be
seen on the oscilloscope display.
Place the function switch in the GATE position and slowly raise the
Voltage Control while observing the
“
TRIGGER INDICATION
”
light.
If the light does not turn on or the oscilloscope graph does not turn from
horizontal to vertical, the Gate on the SCR is faulty, and the device should
be replaced.
Note: The oscilloscope option can be used while testing any type of power semiconductor mentioned in
this manual
Larkin Power Components, Inc.
P.O. Box 14667, Spokane, WA 99214
-
0667, U.S.A.
Phone: 800
-
317
-
5526 Fax: (509) 891
-
5627
E
-
mail : [email protected] Web page : www.larkinpower.com