20
U1401A User’s and Service Guide
1
Getting Started
Display selection with the Hz key
The frequency measurement function is able to detect the
presence of harmonic currents in neutral conductors and
determines, whether these neutral currents are the result of
unbalanced phases or non- linear loads. Press
to enter
the frequency measurement mode for current or voltage
measurements. The voltage or current values will be
displayed on the secondary display and the frequency values
on the primary display. Press this key again to step through
frequency (Hz), duty cycle (%), or pulse width (ms). This
allows simultaneous monitoring of real- time voltage or
current with frequency, duty cycle, or pulse width.
After you press and hold
for more than one second,
the primary display will revert to voltage or current
measurement values.
Table 1-9
Measurement functions and corresponding display selection with the Hz key
Measurement function
Primary display
Secondary display
AC voltage
Frequency (Hz)
AC voltage
Duty cycle (%)
Pulse width (ms)
DC voltage
Frequency (Hz)
DC voltage
Duty cycle (%)
Pulse width (ms)
AC+DC voltage
Frequency (Hz)
AC+DC voltage
Duty cycle (%)
Pulse width (ms)
AC current
Frequency (Hz)
AC current
Duty cycle (%)
Pulse width (ms)
Summary of Contents for U1401A
Page 1: ...Agilent Technologies U1401A Handheld Multi Function Calibrator Meter User s and Service Guide ...
Page 16: ...XVI U1401A User s and Service Guide Contents ...
Page 46: ...26 U1401A User s and Service Guide 1 Getting Started ...
Page 64: ...44 U1401A User s and Service Guide 2 Calibrator Output Operations ...
Page 67: ...Making Measurements 3 U1401A User s and Service Guide 47 Figure 3 1 DC voltage measurement ...
Page 104: ...84 U1401A User s and Service Guide 4 Changing the Default Settings ...
Page 115: ...Application Examples 5 U1401A User s and Service Guide 95 Figure 5 5 Zener diode test ...
Page 146: ...126 U1401A User s and Service Guide 6 Maintenance ...
