Technical data

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 97
Troubleshooting
This chapter provides basic troubleshooting tips that you can use if
the instrument is not performing as expected.
Error Generated
The instrument generates error messages as follows:
-221:Settings conflict:String describing the error
The string describing the error could be one of the following:
• "divider of channel [1|2] leads to a frequency below minimum
frequency"
This occurs if the frequency below one of the channels is set
below the minimum (15 MHz). This could happen if the
frequency is decreased or if the frequency divider is increased.
• "pulsewidth of channel [1|2] is too small"
May happen:
– If the frequency is decreased and the channel is in duty
mode, or
– if the signal mode is switched from NRZ to RZ or R1, or
– if clock mode is switched from internal/external direct to a
none direct mode
• "pulse width of channel [1|2] is too large"
May happen:
– If the frequency is increased and the channel is in duty mode,
or
– if the signal mode is switched from NRZ to RZ or R1, or
– if clock mode is switched from internal/external direct to a
none direct mode.