TFG2900A Series Function/Arbitrary Waveform Generator Users’ Guide
Suin Instruments Co., Ltd
30
problem is solved, you can press
【
On
】
to enable output. Although some protection measures could
be taken by device, the protection can’t avoid all the damages. If the input voltage is too high, the
instrument may be damaged before the circuit protection function takes effect. So long time short
circuit at output port and connecting to high voltage must be forbidden.
3.2.14 Over-limit Data
: Frequency and amplitude have their own allowable data range. When the
setting data exceeds its range, instrument will remind the users as following:
At this time if press
〖
Confirm
〗
, instrument will set parameters to allowable limit value and may
modify the relevant parameters.
At this time if press
〖
Cancel
〗
or wait for a minute, instrument will cancel the current setting.
Although the out of range won’t damage the instrument, the output result may not accord with
expected value. It will remind users to reset the parameters.
3.3 Frequency Modulation
In frequency modulation, carrier’s frequency changes with the modulation signal’s transient
voltage.
3.3.1 Function selection
: Press
【
Modulate
】
to enter modulation function, then press
〖
Modulation
Type
〗
to display modulation menu. Press
〖
FM
〗
, modulation type will be FM, instrument will
display its waveform’s diagram and menu.
3.3.2 Carrier setting
: Sine usually will be the carrier in FM modulation, other built-in waveforms
also could be used but some may be not suitable. Press
【
CH1
】
to enter carrier parameter interface