Operating Your Frequency Counter 2
Keysight 53150A/151A/152A Operating Guide 105
Do Self Test
The Counter automatically performs a series of tests on critical components each
time you turn it on. If at any time during operation, you want to repeat these tests,
you can do so by invoking the Menu, navigating to DO SELF TEST, and pressing
the Enter key.
The individual tests that comprise the Self Test, and the error messages that are
displayed if problems are detected, are described in Appendix B, “Messages.”
Battery Voltage (BATT VOLTAGE)
If the Battery Option (Option 002) is installed, the current battery voltage is
displayed in digital and analog form in this menu item, so you can estimate the
remaining time that the Counter can operate from the batteries. The batteries are
fully charged when the voltage reading is 13.5 V, and the minimum battery
voltage for proper operation is approximately 10 V. For additional information on
the Battery Option, see Appendix C.
Operating Hours (OP HOURS)
This is an informational menu item that displays the total number of hours the
Counter has been in operation since its last calibration. This value does not include
Standby hours. This information is useful for scheduling routine maintenance and
calibration. For additional information on maintenance and calibration, see the
Keysight 53150A/151A/152A Assembly-Level Service Guide.
Model Number, Firmware Version, Serial Number, and Option Codes
This menu item displays a series of numbers and codes that are used to identify
the Counter, its software version number, and the options that are installed. These
items are displayed sequentially, and you use the left- and right-arrow keys to
move between the information fields. Note that there are several numbers
displayed in the field that contains the firmware version. These are in the following
pattern:
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