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Front Panel Operation - 5
61
6 – Making Enhanced Front Panel Measurements
The following figure illustrates the enhanced measurement capabilities of Agilent Models 66311B/D and
66309B/D for measuring output waveforms. These include peak (max), minimum, high level, and low
level measurements as illustrated in the following figure. Rms and dc voltages are calculated from the
number of points in the measurement window.
V or A HIGH
V or A MAX
V or A MIN
100 millisecond
V or A LOW
acquisition time
46.8 microsecond
sampling rate
NOTE:
coincide with the actual maximum
or minimum point of the waveform.
Measurement samples may not
Figure 5-5. Default Front Panel Measurement Parameters
All models except the Agilent 66111A have two current measurement ranges that can be selected in the
Input menu. A high current range is available for measuring output currents of up to 7 amperes. A low
current range is available for improved resolution when measuring output currents below 20
milliamperes. The low current measurement range is accurate to 0.1% of the reading ±2.5 microamperes.
When the current Range is set to AUTO, the unit automatically selects the range with the best
measurement resolution.
NOTE: In the LOW current measurement range, the current detector is fixed at DC. With the
current detector in dc, accurate current measurements cannot be made on waveforms
with frequency contents over 1 kilohertz.
Use the Meter menu for making front panel measurements:
Action Display
1.
On the Function keypad press Meter and press q repeatedly
to access the following measurement parameters:
♦ dc voltage and current
♦ peak voltage
1
♦ minimum voltage
1
♦ high level of a voltage pulse waveform
1
♦ low level of a voltage pulse waveform
1
♦ rms voltage
1
♦ peak current
1
♦ minimum current
1
♦ high level of a current pulse waveform
1
♦ low level of a current pulse waveform
1
♦ rms current
1
1
Not available on Agilent Model 66111A
<reading>V <reading>A
<reading>V MAX
<reading>V MIN
<reading>V HIGH
<reading>V LOW
<reading>V RMS
<reading>A MAX
<reading>A MIN
<reading>A HIGH
<reading>A LOW
<reading>A RMS