B&K Precision 4078 - Manual - Manual (Page 35)

power-on default settings. Table 3-2 lists the factory default settings. You can program the waveform generator for any
settings you want at power on, as described earlier in section 3.6.6.
Note: OUTPUT status saved into memory cannot be recalled for power-on setting. This is a safety feature to prevent
sensitive devices connected to the generator from being damaged if user accidentally turns on the unit.
Table 3-2
Power-on Default Settings
Key Functions Values Comments
FREQUENCY 1.00000000 KHz Wave frequency
RATE(ARB) 1 µs Sample time per point
AMPLITUDE 5.00 V Peak to peak output amplitude
FUNCTION SINE Output waveform
OFFSET 0.00 V Zero offset
REPETITION 10 ms Internal trigger rate
MODE CONT Waveform mode
N-BURST 2 Waves per burst
START ADRS 1 Start memory address
WAVELENGTH 1000 Number of points per waveform
TRIG SOURCE EXT External trigger source
OUTPUT OFF Output disabled
SWEEP OFF Sweep execution
MODULATION OFF Modulation execution
3.11 Memory
The waveform generator uses a non-volatile FLASH memory for storing arbitrary waveform data and front panel
settings. Up to 400,000 points Arbitrary waveform and 50 front panel settings are stored. These front panel settings
can be used to store starting address and lengths of many different waveforms stored in memory as reference points for
quick recall.
Because it is impossible to guarantee 100% of the time against loss of stored data, you should maintain a record of the
data stored in memory so that you can manually restore such data, if necessary.
3.12 Displaying Errors
At power-on, the waveform generator performs a diagnostic routine to check itself for problems. If the diagnostic
routine finds an error, an error message is displayed. The waveform generator also displays error messages when front-
panel settings are either invalid or may produce unexpected results.
Error messages for Model 4075and 4078
Message Text Cause
Out of range Attempt to set variable out of instrument limits.