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User Manual
2253i / 2253iX
AMETEK
California Instruments
66
ENTRY
DESCRIPTION
CREST FACTOR
This readout displays the ratio between peak current and rms
current.
MEASUREMENTS 3 (iX Models only)
CURR THD
This readout displays the total current distortion for the selected
phase. The distortion calculation is based on the H2 through H50
with the RMS current in the denominator. Note that some definitions
of THD use the fundamental component (H1) of the current as the
denominator.
If desired, the user can program the power source controller to use
the fundamental component as the denominator. This mode can only
be programmed over the bus by sending the “MEAS:THD:MODE
FUND” command. At power up or after a reset command, the mode
will revert back to RMS.
PEAK CURRENT
This value is the instantaneous peak current. See also PEAK CURR
in MEASUREMENTS 2 screen.
VOLT THD
This readout displays the total voltage distortion for the selected
phase. The distortion calculation is based on the H2 through H50
with the RMS voltage in the denominator. Note that some definitions
of THD use the fundamental component (H1) of the voltage as the
denominator.
If desired, the user can program the power source controller to use
the fundamental component as the denominator. This mode can only
be programmed over the bus by sending the “MEAS:THD:MODE
FUND” command. At power up or after a reset command, the mode
will revert back to RMS.
PHASE
Relative voltage phase angle measurement with respect to phase A.
This readout is only relevant if an external clock source is used.
Update Program Functions from Measurement Screen
The Shuttle knob can be used to update voltage and/or frequency settings while the measurement
readout screen is displayed. To do so, select the desired parameter to be change while in the SET
screen using the left arrow cursor. Then, select the measurement screen by pressing the MEAS
button. While the measurement screen is visible, the shuttle continues to operate.
Содержание 2253i
Страница 5: ...User Manual 2253i 2253iX AMETEK California Instruments 5 SAFETY SYMBOLS...
Страница 99: ...User Manual 2253i 2253iX AMETEK California Instruments 99 Figure 6 1 Internal adjustment locations...
Страница 118: ...User Manual 2253i 2253iX AMETEK California Instruments 118 Figure 9 4 Voltage Modulation Frequency characteristics...