Keysight 85031B Service Guide

Keysight Technologies 85031B 7 mm Calibration Kit

User’s and Service Guide
85031B
THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED "AS IS," AND IS SUBJECT TO BEING CHANGED, WITHOUT NOTICE, IN FUTURE EDITIONS. FURTHER, TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, KEYSIGHT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED WITH REGARD TO THIS MANUAL AND ANY INFORMATION CONTAINED HEREIN, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. KEYSIGHT SHALL NOT BE LIABLE FOR ERRORS OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE FURNISHING, USE, OR PERFORMANCE OF THIS DOCUMENT OR ANY INFORMATION CONTAINED HEREIN. SHOULD KEYSIGHT AND THE USER HAVE A SEPARATE WRITTEN AGREEMENT WITH WARRANTY TERMS COVERING THE MATERIAL IN THIS DOCUMENT THAT CONFLICT WITH THESE TERMS, THE WARRANTY TERMS IN THE SEPARATE AGREEMENT WILL CONTROL.
DFARS/Restricted Rights Notice
If software is for use in the performance of a U.S. Government prime contract or subcontract, Software is delivered and licensed as “Commercial computer software” as defined in DFAR 252.227-7014 (June 1995), or as a “commercial item” as defined in FAR 2.101(a) or as “Restricted computer software” as defined in FAR 52.227-19 (June 1987) or any equivalent agency regulation or contract clause. Use, duplication or disclosure of Software is subject to Keysight Technologies’ standard commercial license terms, and non-DOD Departments and Agencies of the U.S. Government will receive no greater than Restricted Rights as defined in FAR 52.227-19(c)(1-2) (June 1987). U.S. Government users will receive no greater than Limited Rights as defined in FAR 52.227-14 (June 1987) or DFAR 252.227-7015 (b)(2) (November 1995), as applicable in any technical data.
Assistance
Product maintenance agreements and other customer assistance agreements are available for Keysight products.
For any assistance, contact Keysight Technologies. Refer to "Contacting Keysight" on page 5-4 .
85031B
Printing Copies of Documentation from the Web
To print copies of documentation from the Web, download the PDF file from the Keysight web site:
•Go to ww
Enter the document’s part number (located on the title page) in the Se
•Click Se
Open the PDF and print the document.
w.keysight.com.
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arch box.
85031B
Contents
1. General Information
Calibration Kit Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Kit Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Broadband Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combination Open/Short . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Calibration Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation of the Calibration Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Required but Not Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Incoming Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recording the Device Serial Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preventive Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to Calibrate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Specifications
Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature—What to Watch Out For . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . 1-2
. . . . . . . . . . . . 1-2
. . . . . . . . . . . . . 1-2
. . . 1-2
. . . . . . . . . . . . . 1-2
. . . 1-3
. . . . . . . . . . . . . . . . . 1-3
. . . 1-3
. . . . . . . . . . . . . 1-3
. . . 1-4
. . . . . . . . . . . . . 1-4
. . . . . . . . . . . . . 1-5
. . . . . . . . . . . . . 2-2
. . . 2-2
. . . . . . . . . . . . . 2-3
. . . . . . . . . . . . . 2-3
. . . . . . . . . . . . . 2-5
. . . . . . . . . . . . 2-5
3. Use, Maintenance, and Care of the Devices
Electrostatic Discharge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Visual Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Look for Obvious Defects and Damage First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What Causes Connector Wear?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspect the Mating Plane Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gaging Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connector Gage Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to Gage Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading the Connector Gage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gaging Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Make a Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preliminary Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Final Connection Using a Torque Wrench. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Separate a Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handling and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. Performance Verification
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Keysight Verifies the Devices in Your Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recertification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Often to Recertify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Where to Send a Kit for Recertification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . 3-2
. . . . . . . . . . . . . 3-3
. . . 3-3 . . . 3-3
. . . 3-3
. . . . . . . . . . . . . 3-4
. . . . . . . . . . . . . 3-6
. . . . . . . . . . . . . 3-6
. . . . . . . . . . . . 3-6
. . . . . . . . . . . . 3-7
. . . . . . . . . . . . . 3-8
. . . . . . . . . . . . 3-11
. . . . . . . . . . . 3-11
. . . . . . . . . . . 3-11
. . 3-11 . . 3-13
. . . . . . . . . . . . 3-13
. . . . . . . . . . . . . 4-2
. . . 4-2
. . . . . . . . . . . . 4-3
. . . . . . . . . . . . . 4-3
. . . 4-3
85031B
Contents
5. Troubleshooting
Troubleshooting Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Where to Look for More Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Returning a Kit or Device to Keysight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contacting Keysight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Replaceable Parts
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A. Standard Definitions
Class Assignments and Standard Definitions Values are Available on the Web . . . . . . . . . . . . . . . . . . . . . . . . A-2
. . . . . . . . . . . . . . . . . . . . . 6-2
. . . . . . . . . . . 5-2
. . . . . . . . . . . 5-3
. . . . . . . . . . . 5-3
. . . . . . . . . . . 5-4
85031B

1 General Information

General Information

Calibration Kit Overview

Calibration Kit Overview
The Keysight 85031B 7 mm calibration kit is used to calibrate Keysight network analyzers up to 6 GHz for measurements of components with 7 mm connectors.

Kit Contents

The 85031B calibration kit includes the following items:
•two 50broadband load terminations
one combination open/short
Refer to Figure 6-1 and Table 6-1 on page 6-2 for a complete list of kit contents and their associated part numbers.
Broadband Loads
The broadband loads are metrology-grade terminations that have been optimized for performance up to 6 GHz. The rugged internal structure provides for highly repeatable connections. A distributed resistive element on sapphire provides excellent stability and return loss.
Combination Open/Short
The combination open/short is a precision standard device built from parts that are machined to the current state-of-the-art in precision machining.
This device is constructed so that the pin depth can be controlled very tightly, thereby minimizing phase errors. Refer to “Pin Depth” on page 2-3 for additional information.

Calibration Definitions

The calibration kit must be selected and the calibration definitions for the devices in the kit installed in the network analyzer prior to performing a calibration. Refer to your network analyzer’s user’s documentation for instructions on selecting the calibration kit and performing a calibration.
The calibration definitions can be:
already resident within the analyzer
entered from the front panel
Class assignments and standard definitions may change as more accurate model and calibration methods are developed. You can download the most recent class assignments and standard definitions from Keysight’s Calibration Kit Definitions Web page at
http://na.support.keysight.com/pna/caldefs/stddefs.html.
Refer to your network analyzer user’s guide (8510 family) or online Help (PNA family) for instructions on selecting the calibration kit, installing (if necessary) the calibration definitions, and performing a calibration.
Installation of the Calibration Definitions
The calibration definitions for the kit may be permanently installed in the internal memory or hard disk of
1- 2 85031B
General Information

Incoming Inspection

the network analyzer.
If the calibration definitions for the kit are not permanently installed in the network analyzer, they must be manually entered. Refer to your network analyzer user’s guide for instructions.

Options

The following options are available for the 85031B:
Option UK6
This option adds a certificate of calibration and the corresponding calibration data for the devices in the calibration kit.

Equipment Required but Not Supplied

Connector cleaning supplies and various electrostatic discharge (ESD) protection devices are not supplied with the calibration kit but are required to ensure successful operation of the kit. Refer to
6-3 for ordering information.
Table 6-2 on page
Incoming Inspection
Verify that the shipment is complete by referring to Table 6-1 on page 6-2.
Check for damage. The foam-lined storage case provides protection during shipping. Verify that this case and its contents are not damaged.
If the case or any device appears damaged, or if the shipment is incomplete, contact Keysight Te ch no lo g i e s . Se e incomplete or damaged shipments without waiting for a settlement from the transportation company.
When you send the kit or device to Keysight, include a service tag (found after the index of this manual) with the following information:
your company name and address
the name of a technical contact person within your company, and the person's complete phone number
the model number and serial number of the kit
the part number and serial number of the device
the type of service required
•a detailed description of the problem
“Contacting Keysight” on page 5-4. Keysight will arrange for repair or replacement of
85031B 1-3
General Information

Recording the Device Serial Numbers

Recording the Device Serial Numbers
In addition to the kit serial number, the devices in the kit are individually serialized (serial numbers are labeled onto the body of each device). Record these serial numbers in numbers will prevent confusing the devices in the kit with similar devices from other kits.
The adapters included in the kit are for measurement convenience only and are not serialized.
Ta bl e 1-1 Serial Number Record for the 85031B
Device Serial Number
Tab le 1- 1. Recording the serial
Calibration kit
Broadband load
Broadband load
Combination open/short
_______________________________
_______________________________
_______________________________
_______________________________

Preventive Maintenance

The best techniques for maintaining the integrity of the devices in the kit include:
routine visual inspection
cleaning
proper gaging
proper connection techniques
All of these are described in Chapter 3. Failure to detect and remove dirt or metallic particles on a mating plane surface can degrade repeatability and accuracy and can damage any connector mated to it. Improper connections, resulting from pin depth values being out of specification (see bad connection techniques, can also damage these devices.
Table 2-2 on page 2-3), or from

When to Calibrate

A network analyzer calibration remains valid as long as the changes in the systematic error are insignificant. This means that changes to the uncorrected leakages (directivity and isolation), mismatches (source match and load match), and frequency response of the system are small (<10%) relative to accuracy specifications.
Change in the environment (especially temperature) between calibration and measurement is the major
1- 4 85031B
General Information
When to Calibrate
cause in calibration accuracy degradation. The major effect is a change in the physical length of external and internal cables. Other important causes are dirty and damaged test port connectors and calibration standards. If the connectors become dirty or damaged, measurement repeatability and accuracy is affected. Fortunately, it is relatively easy to evaluate the general validity of the calibration. To test repeatability, remeasure one of the calibration standards. If you can not obtain repeatable measurements from your calibration standards, maintenance needs to be performed on the test port connectors, cables and calibration standards. Also, maintain at least one sample of the device under test or some known device as your reference device. A verification kit may be used for this purpose. After calibration, measure the reference device and note its responses. Periodically remeasure the device and note any changes in its corrected response which can be attributed to the test system. With experience you will be able to see changes in the reference responses that indicate a need to perform the measurement calibration again.
85031B 1-5
General Information
When to Calibrate
1- 6 85031B

2 Specifications

Specifications

Environmental Requirements

Environmental Requirements
Ta bl e 2-1 Environmental Requirements
Parameter Limits
Te m pe r a t ur e
Operating
Storage 40 C to +75 C
Error-corrected range
Relative humidity Type tested, 0% to 95% at 40 C, non-condensing
a. The temperature range over which the calibration standards maintain conformance to their specifications. b. The allowable network analyzer ambient temperature drift during measurement calibration and during
a
b
measurements when the network analyzer error correction is turned on. Also, the range over which the network analyzer maintains its specified performance while correction is turned on.
+15 C to +35 C
1 C of measurement calibration temperature

Temperature—What to Watch Out For

Changes in temperature can affect electrical characteristics. Therefore, the operating temperature is a critical factor in performance. During a measurement calibration, the temperature of the calibration devices must be stable and within the range shown in
IMPORTANT Avoid unnecessary handling of the devices during calibration because your fingers are a
heat source.
Tab le 2- 1.
2-2 85031B
Specifications

Mechanical Characteristics

Mechanical Characteristics
Mechanical characteristics such as center conductor protrusion and pin depth are not performance specifications. They are, however, important supplemental characteristics related to electrical performance. Keysight Technologies verifies the mechanical characteristics of the devices in the kit with special gaging processes and electrical testing. This ensures that the device connectors do not exhibit any center conductor protrusion or improper pin depth when the kit leaves the factory.
“Gaging Connectors” on page 3-6 explains how to use gages to determine if the kit devices have
maintained their mechanical integrity. Refer to Tab l e 2- 2 for pin depth specifications.

Pin Depth

Pin depth is the distance the center conductor mating plane differs from being flush with the outer conductor mating plane. See states: either protruding or recessed.
Protrusion is the condition in which the center conductor extends beyond the outer conductor mating plane. This condition will indicate a positive value on the connector gage.
Figure 2-1. on page 2-4. The pin depth of a connector can be in one of two
Recession is the condition in which the center conductor is set back from the outer conductor mating plane. This condition will indicate a negative value on the connector gage.
The pin depth value of each calibration device in the kit is not specified, but is an important mechanical parameter. The electrical performance of the device depends, to some extent, on its pin depth. The electrical specifications for each device in the kit take into account the effect of pin depth on the device’s performance.
Tab le 2- 2 lists the typical pin depths for the devices in the kit. If the pin depth of a device does
not measure within the observed pin depth limits, it may be an indication that the device fails to meet electrical specifications. Refer to
Figure 2-1. on page 2-4 for a visual representation of proper pin depth
(slightly recessed).
Ta bl e 2-2 Pin Depth Limits
Device Typical Pin Depth
Inches Millimeters
Lowband load -0.0002 to -0.0025
+0.0051 to -0.0635
Combination open/short Open: 0 to -0.001
0 to -0.0254
Short: +0.0001 to -0.0001
+0.00254 to -0.00254
NOTE Center conductor recession with collet removed = 0.000 to 0.002 inches.
85031B 2-3
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