RIGOL DG4000 Series - Manual (Page 68)

RIGOL
Quick Guide for DG4000 12
CAUTION
Overvoltage protection of the output channel will take effect once any of
the following conditions is met.
 Amplitude setting in the generator is greater than 4 Vpp; the input
voltage is greater than ±11.25 V (±0.1 V) and frequency is lower
than 10kHz.
 Amplitude setting in the generator is lower than or equal to 4 Vpp;
the input voltage is greater than ±4.5 V (±0.1 V) and frequency is
lower than 10kHz.
 The message “OverLoad protect, The output is off!” will appear on
the screen when overvoltage protection takes effect.