NF BP4620, Instruction Manual

Page: 179 / 214

7.7 Operation Inspection
BP4620
7-8
7.7 Operation Inspection

Verification before operation inspection
Before performing operation inspection, check the following items.

Is the supply voltage within the rated range?

Is the ambient temperature within the range of 5 to 35

C?

Is the ambient humidity within the range of 5 to 85%RH? (with absolute humidity of 1 to 25
g/m
3
)

Is there any condensation?

Check at power-on
Check that on error is displayed at power-on.
Check that the UNCAL icon and battery icon are not blinking.
(If an error is displayed,
refer to “6.1.1 Errors at power-on” .)

LCD screen check
Check that the characters, icons, and lines displayed on the LCD screen are not displaced, do not
flicker, and free of bleeding.

Conditions during operation mode-specific function check
When performing the following operation-mode specific function checks, first initialize (execute
RESET in the SYSTEM menu) the settings for each check to prevent incorrect settings.
Also, connect a 3

resistance load to the output terminal of the BP4620.

Check during CV mode internal signal source operation
Observe the voltage monitor output after connecting it to an oscilloscope. (The voltage of 1/100th
the output voltage is monitored.)
In this state, try changing the settings listed below a number of times and check whether the
BP4620 functions normally.
DC voltage, superimposed AC voltage, superimposed AC frequency, superimposed AC waveform,
output on/off, voltage limiters (when the voltage limiters are set to a smaller value than the output
voltage while the BP4620 is outputting superimposed AC voltage, clipping of the voltage
frequency will occur and overload will be displayed on the LCD screen of the BP4620).

Check during CC mode internal signal source operation
After performing setting initialization, set the operation mode to CC-INT.
Connect the current monitor output to an oscilloscope and observe it (observation of voltage (V)
that is 1/20th of the output current (A)).
In this state, try changing the settings listed below a number of times and check whether the
BP4620 functions normally.
DC current, superimposed AC current, superimposed AC frequency, superimposed AC waveform,
output on/off, current limiters (when the current limiters are set to a smaller value than the output
current while the BP4620 is outputting superimposed AC current, clipping of the current
waveform will occur and overload will be displayed on the LCD screen of the BP4620).