PPA45xx Quick User Guide
Page 25
Keyboard Beep
Audible sound when keys are pressed
Disabled
Audible sound disabled
Enabled
Audible sound activated
Autozero
Autozero
Periodically re-zero’s input to prevent drift, useful for
long periods of DC analysis
Manual
Unit will only zero inputs if “Zero” is pressed by user
Program 1-6 Direct
Load
Program 1-6 may be recalled with a direct press of
the function keys (POWER, INTEG etc)
Disabled
Function will be disabled
Enabled
Function will be enabled
Zoom 2 High
Resolution
The data displayed in zoom 2 may be displayed to
one digit greater resolution than normal, this is
particularly useful when measuring phase at power
line frequencies
Disabled
Function will be disabled
Enabled
Function will be enabled
Independent Ranging
This allows the user to set different scale factors and
select independently internal / external shunts
separately on each phase
Disabled
Function will be disabled
Enabled
Function will be enabled
Low Value Blanking
Low value blanking will zero to display values under
the following conditions
Input Signal Peak
< 45% of RNG 1
< 25% of RNG 2
< 15% of all other ranges
Disabled
Function will be disabled
Enabled
Function will be enabled
←
System
Information
The information given in this section cannot be
changed by the user
Serial Number
Instruments unique serial number
Manufacturing Code
Code attributed to build date of instrument
Main Release
Current firmware release installed in instrument
DSP Release
Digital Signal Processing release version
FPGA Release
Field Programmable Gate Array release version
Boot Release
Release version of Instruments boot up firmware
Last Calibration
Instruments last calibration date
