Agilent Technologies 53152A User Manual

Appendix B  Messages

B-2

Operating Guide

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.

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.

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.