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Normal
Operation
Error and
Warning/
Status
Messages
When an abnormal condition is detected during op-
eration, the instrument displays an error message
to indicate that the output is abnormal or that a sig-
nal input or data entry is invalid. It also displays
warning messages to alert the operator to conditions
that could cause an inaccurate instrument output.
Status messages to remind the operator of current
menu selections or settings are also generated.
Table 5-2 is a summary list of possible error mes-
sages that can be displayed during normal opera-
tions. Table 5-3 is a summary list of possible
warning/status messages.
690XXB/691XXB MM
5-7
Error Message
Description
ERROR
Displayed (on the frequency mode title bar) when (1) the
output frequency is not phase-locked or (2) an invalid
entry causes a frequency range error.
LOCK ERROR
Displayed (in the frequency parameters area) when the
output frequency is not phase-locked. The frequency ac-
curacy and stability of the RF output is greatly reduced.
Normally caused by an internal component failure. Run
self-test to verify malfunction.
RANGE
Displayed (in the frequency parameters area) when (1)
the analog sweep start frequency entered is greater than
the stop frequency (691XXB models only), (2) the dF
value entered results in a sweep outside the range of the
instrument, (3) the step size value entered is greater
than the sweep range, (4) the number of steps entered
results in a step size of less than 1 kHz (0.1 Hz with Op-
tion 11) or 0.1 dB (0.001 mV), or (5) the step sweep time
divided by the number of steps results in a dwell time of
<10 ms. Entering valid values usually clears the error.
SLAVE
Displayed (in the frequency parameters area of the Mas-
ter instrument) during master-slave operation when the
slave frequency offset value entered results in a CW fre-
quency or frequency sweep outside the range of the
slave instrument. Entering a valid offset value clears the
error.
Table 5-2.
Possible Error Messages during Normal Operations (1 of 2)
ERROR AND WARNING/
TROUBLESHOOTING
STATUS MESSAGES
Содержание 680 C Series
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