GW Instek SFG-2000 Series - Manual (Page 26)

FAQ
51
F
AQ
● I pressed the Power key on the front panel but nothing happens.
● How can I get out of Counter/Sweep/Modulation/TTL/−20dB mode?
● The device accuracy does not match the specification.
● What are these error messages?
I pressed the Power key on the front panel but nothing happens.
Make sure the AC source voltage setting on the rear
panel is correct (page21). Otherwise the internal fuse
might be blown out. Contact the service personnel.
How can I get out of Counter/Sweep/Modulation/TTL/−20dB mode?
Press the Shift key, then the relevant numerical key. (Do
the same action as you entered those modes)
For example: To get out of Counter mode, press Shift
then 1.
The device accuracy does not match the specification.
Make sure the device is powered On for at least 30
minutes, within +20°C~+30°C. This is necessary to
stabilize the unit to match the specification.
What are these error messages?
Several messages appear when trying to set the frequency
or duty cycle in forbidden way. Page52 summarizes all
the error message content.
If there is still a problem, please contact your local dealer or GWInstek at
www.gwinstek.com.tw / [email protected].
SFG-2000 Series User Manual
52
A
PPENDIX
Error Messages
Frequency
error
FrEq-Err1 Sine and square wave frequency over range.
This message appears when entering sine or
square waveform frequency larger than the
rating. See page26 for sine/square rating.
FrEq-Err2 Triangle wave Frequency over range. This
message appears when entering triangle
waveform frequency larger than 1MHz. See
page26 for triangle wave rating.
FrEq-Err3 FM Center Frequency over range. This
message appears when trying to enter FM
center frequency larger than specified. See
page38 for FM center frequency range.
Duty Cycle
error
duty-Err1 Not square waveform. This message
appears when trying to set duty cycle in
non-square (=sine or triangle) waveform.
For duty cycle setting, see page28 (square
wave) or page33 (TTL/CMOS output).
duty-Err2 Square wave frequency over range. This
message appears when trying to set duty
cycle when the square wave frequency is
over 1MHz. For square wave frequency
setting, see page26.
duty-Err3 Duty over range. This message appears
when the duty cycle setting goes outside
20~80% range.
For duty cycle range, see page28 (square
wave) or page33 (TTL/CMOS output).