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Appendix B Messages
Overview
B-2 Operating Guide
B
Overview
The Agilent 53150A/151A/152A provides two types of messages that are
displayed on the Counter’s front panel and/or sent over the RS-232 serial
interface. The first type is status messages, which are displayed during
normal operation. The second type is error messages, which are sent via
RS-232 and/or displayed when the Counter detects an error during the
Self-Test procedure or during normal operation.
NOTE All messages sent over the RS-232 interface are also available via GPIB.
However, these messages are not automatically sent over the GPIB
interface. For information on retrieving messages over the GPIB interface,
see the Agilent 53150A/151A/152A Programming Guide.
Status Messages
Table 3-1 lists and describes the status messages that are displayed on
the Counter’s front panel.
Table 3-1. Status Messages
Message Description
TESTING The Counter is performing its Self-Test.
SELF TEST OK No critical errors were detected during the self-test.
MEASURING The Counter is sampling the signal and computing a measurement.
AVERAGING The Counter is taking measurements and computing the number of
averages determined by the Averages setting.
CH 1 NO SIGNAL
CH 2 NO SIGNAL
The Counter is operational, but no signal can be detected on the
selected input channel.
CHANNEL 1
CHANNEL 2
Identifies the currently selected channel after you press the Chan
Select key to switch channels. CHANNEL 1 or CHANNEL 2 is
displayed until the Counter can display a measurement or determine
that no signal is present.