
6-30
ET User’s Guide
Calibrating for Increased Measurement Accuracy
Checking the Calibration
To perform a calibration check:
1. Be sure that the analyzer is in the measurement mode and has
implemented the particular calibration that you want to check.
2. Press
.
3. Follow the onscreen prompts to connect the calibration standards.
(You should connect the standards at your calibration reference
plane, not necessarily at the front panel of the analyzer. For example,
your calibration reference plane may be at the end of cables, adapters,
or test fixtures connected to the analyzer. See
CAUTION
To decrease the likelihood that a faulty calibration standard is being
used, it is recommended that you use a different set of calibration
standards for the calibration check than you used to perform the initial
calibration. The different set of calibration standards must be of the
same type as the original set.
4. Once you have properly connected all the required standards as
prompted, the analyzer computes the residual errors for the
measurement.
5. Now press the
key to view the residual errors for
the type of calibration you did a calibration check on. When you view
an error term plot, the analyzer stops sweeping and displays the plot
on the analyzer's screen. To return to measurement mode and
autoscale the display, press
.
6. Refer to
“Error Term Descriptions and Typical Values” on page 6-31
for descriptions and typical plots of the various error terms.
CAL
Cal Check Do Cal Check
View Cal Check
Restore Meas
Summary of Contents for HP 8712ET
Page 8: ...viii ET User s Guide ...
Page 17: ...ET User s Guide 1 1 1 Installing the Analyzer ...
Page 34: ...1 18 ET User s Guide Installing the Analyzer Preventive Maintenance ...
Page 35: ...ET User s Guide 2 1 2 Getting Started ...
Page 52: ...2 18 ET User s Guide Getting Started Performing the Operator s Check ...
Page 53: ...ET User s Guide 3 1 3 Making Measurements ...
Page 118: ...3 66 ET User s Guide Making Measurements Measuring Impedance Magnitude ...
Page 119: ...ET User s Guide 4 1 4 Using Instrument Functions ...
Page 143: ...ET User s Guide 4 25 Using Instrument Functions Using Markers Figure 4 15 Delta Marker Mode ...
Page 149: ...ET User s Guide 4 31 Using Instrument Functions Using Limit Testing Figure 4 16 Limit Lines ...
Page 207: ...ET User s Guide 5 1 5 Optimizing Measurements ...
Page 226: ...5 20 ET User s Guide Optimizing Measurements Measuring Devices with Long Electrical Delay ...
Page 227: ...ET User s Guide 6 1 6 Calibrating for Increased Measurement Accuracy ...
Page 266: ...6 40 ET User s Guide Calibrating for Increased Measurement Accuracy Checking the Calibration ...
Page 267: ...ET User s Guide 7 1 7 Front Rear Panel ...
Page 292: ...7 26 ET User s Guide Front Rear Panel Line Module ...
Page 293: ...ET User s Guide 8 1 8 Hardkey Softkey Reference ...
Page 395: ...ET User s Guide 9 1 9 Specifications ...
Page 397: ...ET User s Guide 9 3 Specifications System Performance ...
Page 443: ...ET User s Guide 10 1 10 Safety and Regulatory Information ...
Page 449: ...ET User s Guide 10 7 Safety and Regulatory Information Regulatory Information ...
Page 450: ...10 8 ET User s Guide Safety and Regulatory Information Regulatory Information ...
Page 451: ...ET User s Guide 11 1 11 Factory Preset State and Memory Allocation ...