Capter 3
Function Setting and Basic Operation
Curve Tracer CS-3000 Series Instruction Manual
3-29
3.7.1 VARIABLE knob
3.7.1.1
VARIABLE knob and display menu
VARIABLE knob sets the output voltage of the collector supply using the ratio to the maximum
peak voltage setting value. Rotation of VARIABLE knob allows the collector supply to change
from 0
%
to 100
%
continuously in 0.1
%
step. Clockwise rotation increases voltage and
counterclockwise rotation decreases it. It is also possible that the VARIABLE knob responds
fast. (As for the setting method, refer to 3.11..1.4.2 MEASURMENT SETUP submenu.)
VARIABLE 0.0
%
Variable value (output level)
0.0
%
to 100.0%
The setting value is displayed in the setup display area above.
3.7.1.2
Initializing VARIABLE setting value
The VARIABLE setting value can be initialized to 0
%
by the operation and conditions below:
On MODE/POLARITY menu
•
POLARITY is changed.
•
Other switchover than DC
↔
RECTIFIED SINE (full-wave rectified) is done (Ex.: MODE is changed to
AC or LEAKAGE.)
•
Switchover of 50Hz
↔
60Hz is done on ACQUIRE menu.
•
A voltage is changed on MAX PEAK VOLTAGE menu.
•
Switchover between HIGH VOLTAGE and HIGH CURRENT is done.
Setting is changed on CONFIGURATION menu.
The breaker used by HIGH VOLTAGE or HIGH CURRENT is set to "DISABLED."
Overload is detected.
When the range of the vertical axis is too small for the collector current, this instrument changes
to the overload state to protect the inner circuits. Either of actions below is done depending on
the intensity of a detected current:
- If the large collector current with steep rise is detected, VARIABLE is reduced to 0%.
- If the effective current value exceeds a specified value, VARIABLE is reduced below the value.
Caution !
: When the measurement ends, carry out below:
♦
Rotate VARIABLE counterclockwise to set the value to 0( to reduce the discharge time of an applied voltage).
♦
Set HIGH VOLTAGE breaker to "DISABLED."
♦
In high voltage output, very small partial discharge may be measured.
If it affects the measurement, use the AVERAGE mode.
Summary of Contents for CS-3000 Series
Page 1: ...Instruction Manual Curve Tracer CS 3000 series CS 3100 CS 3200 CS 3300 ...
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