4601 I-V Meter Operation Manual
5.4 Alarm Detection
5-26
Specify the memory address to call the measured value at each step by using the rotary knob or
numeric keypad.
Example display
Press .
The
MENU
key goes OFF and the memory read status is complete.
5.4
Alarm Detection
5.4.1
Current Limit Detection
When the output current reaches the setting current limit value, the current limit is detected.
The current limit alarm is detected at the same time of measurement and displayed with the measured val-
ues.
5.4.2
Oscillation Detection
The output may oscillate under the influence of the device capacitance or cable inductance.
The 4601 detects such an oscillation by its output terminals and internal circuits and displays an alarm with
measured values.
If the oscillation is detected, slow the response so that the output does not oscillate. Then, change the mea-
surement delay timing or other timings and perform measurement.
The oscillation is detected in the range between 1 KHz and 1 MHz approximately.
The following list shows the sensitivity of oscillation detection.
Table 5-6 Oscillation Detection Sensitivity
Frequency
100 Hz
1 kHz
10 kHz
100 kHz
1 MHz
10 MHz
Detection sensitivity
[mVp-p]
-
70
50
50
400
-
5
6
Current limit and oscillation detection display
Current limit detection
Oscillation detection
