NF WF1946B, Инструкция по эксплуатации

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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 (
C H 2 O U T
O N /O F F
C H 1 O U T
O N /O F F
,
)