NF WF1946B - Operation Checks; Preparatory Checks; Function Checks

WF1946B 7-3
7.2 Operation checks
 Preparatory checks
Check the following before inspection.
z Power source voltage is within ± 10 % of the rating
z Ambient temperature is within 5 to 35 °C.
z Ambient relative humidity is within 5 to 85 %RH (absolute humidity: 1 to 25 g/m
3
)
z Condensation is absent.
 Function checks
z
Power on
Confirm absence of error message at power on.
If an error message appears,
“6. Troubleshooting”, cf.
If an abnormal indication appears at power on, switch power off and wait at least 5 seconds, then
again switch power on.
z Main function checks
To avoid setting error, initialize the settings (
SYSTEM
→ PRESET).
Connect FUNCTION OUT to an oscilloscope with 50 Ω coaxial cable to monitor the output.
Operate to change the following settings several times and confirm normal functions. Test both
keypad and MODIFY dial for settings such as frequency.
・Frequency (
ENTRY
→
FREQ
)
・Amplitude (
ENTRY
→
AMPTD
)
・DC offset (
ENTRY
→
OFFSET
)
・Waveform (
FUNCTION
→
， ，
Duty fixed 50 %，
，
)
・Duty (
FUNCTION
→ Variable duty，
ENTRY
→
DUTY
)
・Output on/off (
CH 2 OUT
ON/OFF
CH 1 OUT
ON/OFF
,
)