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Keysight 42941A Operation And Service Manual

Impedance probe kit
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Keysight 42941A Impedance Probe Kit
Operation and
Service Manual

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Summary of Contents for Keysight 42941A

  • Page 1 Keysight 42941A Impedance Probe Kit Operation and Service Manual...
  • Page 2 (including electronic storage and nished under a license and may be ing elsewhere in the EULA. Keysight retrieval or translation into a foreign used or copied only in accordance shall be under no obligation to language) without prior agreement with the terms of such license.

  • Page 3: Table Of Contents

    Connecting the 42941A ........
  • Page 4 Contents Keysight 42941A Impedance Probe Kit...

  • Page 5: Installation Guide

    Inspect the shipping container for damage. If the shipping container or cushioning material is damaged, it should be kept until the contents of the shipment have been checked for completeness and the 42941A has been checked mechanically and electrically. The shipment should contain...

  • Page 6: Connecting The 42941A

    Connecting the 42941A Connecting the 42941A Follow the steps below to connect the 42941A to an Impedance Analyzer. 1. Join the 42941A four-terminal pair connection block to the test connectors on the front panel of the Impedance Analyzer by gently matching the four...

  • Page 7: Serial Number

    Installation Guide Serial Number Serial Number Keysight Technologies uses a ten-character serial number that is stamped on the serial number plate attached to the bottom of the four-terminal pair connection block. The first two characters shows the made-in country, the next three digits are assigned as the serial prefix and the last five digits are the suffix.
  • Page 8 Installation Guide Serial Number Keysight 42941A Impedance Probe Kit...

  • Page 9: Overview

    2 Overview Product Overview The 42941A is an impedance probe kit designed for an Impedance Analyzer. This kit allows impedance measurement and analysis in a wide frequency range of up to 120 MHz. Its 1.5-meter cable for Impedance Analyzer probing allows you to evaluate implemented circuits and mounted devices.

  • Page 10: Functions

    Overview Functions Functions Figure 2-2 Figure 2-3 show the names of the 42941A’s parts and probe adapters, respectively. Figure 2-2 42941A Parts Table 2-1 42941A Function NAME FUNCTION Four-terminal Pair Connects the 42941A to the Impedance Analyzer. Connection Block Securing Screws Secures the 42941A to the Impedance Analyzer.
  • Page 11 BNC Adapter Attached to the probe to measure devices and cables that have BNC connectors. Clip Lead Attached to the top of the BNC adapter by the probe to measure mounted lead components or large devices. Keysight 42941A Impedance Probe Kit...
  • Page 12 Overview Functions Keysight 42941A Impedance Probe Kit...

  • Page 13: Operation

    Adapter [42941A]. 5. Press the Adapter Setup key to bring up the Adapter Setup Menu. 6. Leave the 3.5-mm port of the 42941A open (no connection). There is no OPEN standard for the 42941A. 7. Press the Phase [-] key to start the phase compensation data measurement.
  • Page 14 10.Press the Short [-] key to start the short data measurement. When the short data measurement is completed, the softkey label changes to Short [Done]. 11.Remove the SHORT from the 3.5-mm port of the 42941A. Then connect the LOAD to the 3.5-mm port.

  • Page 15: Connecting The Probe Adapter

    Operation Connecting the Probe Adapter Connecting the Probe Adapter The probe adapters are furnished with the 42941A to measure DUTs of various shapes and characteristics. Attach the appropriate probe adapter for your DUT. Connecting the Pin Probe Attach the pin probe to the 3.5-mm connector top of the probe and insert the pin.

  • Page 16: Connecting The Ground Lead

    Connecting the Probe Adapter Connecting the Ground Lead Remove the screw fixing the ground contact to detach the contact. Use the removed screw to attach the ground lead to the pin probe. Figure 3-2 Connecting the Ground Lead Keysight 42941A Impedance Probe Kit...

  • Page 17: Connecting The Bnc Adapter

    Attach the BNC adapter to the 3.5-mm connector on top of the probe. Figure 3-3 Connecting the BNC Adapter Connecting the Clip Lead Attach the BNC adapter to the probe and then attach the clip lead to the adapter. Figure 3-4 Connecting the Clip Lead Keysight 42941A Impedance Probe Kit...

  • Page 18: Fixture Compensation

    Attach the probe adapter to be used for your measurement and perform fixture compensation. 1. Press the [Cal] key to bring up the Calibration Menu. 2. Press the Fixture Compen key to bring up the Fixture Compensation Menu. Keysight 42941A Impedance Probe Kit...
  • Page 19 Performing Open Compensation 2. Press the OPEN key to start the OPEN compensation data measurement. When the OPEN compensation data measurement is completed, the softkey label Open [OFF] (if it is off) changes to Open [ON]. Keysight 42941A Impedance Probe Kit...
  • Page 20 Performing Short Compensation 2. Press the SHORT key to start the SHORT compensation data measurement.When the SHORT compensation data measurement is completed, the softkey label Short [OFF] (if it is off) changes to Short [ON]. Keysight 42941A Impedance Probe Kit...

  • Page 21: Dut Measurement

    When measuring implemented circuits, mounted devices, and printed circuit patterns, use the pin probe. Figure 3-7 DUT Measurement Using the Pin Probe The pin of the pin probe is replaceable. Replace it when damaged or dirty. Keysight 42941A Impedance Probe Kit...
  • Page 22 It may influence the circuit to not perform correctly or may damage it entirely. Measurement value will be incorrect. In the case of measuring a circuit that could output a DC signal, connect an appropriate DC-blocking capacitor to the probe. Figure 3-8 Adjusting the Pin-to-GND Gap Keysight 42941A Impedance Probe Kit...
  • Page 23 Use the ground lead to ground the probe to a distant point (Figure 3-9). When you attach the ground lead to the pin probe, detach the ground contact (refer Figure 3-2). Figure 3-9 DUT Measurement Using the Ground Lead Keysight 42941A Impedance Probe Kit...

  • Page 24: Dut Measurement Using The Bnc Adapter

    DUT Measurement Using the BNC Adapter DUT Measurement Using the Clip Lead Use the clip lead to measure devices with leads that are large or mounted on the circuit board. Figure 3-11 DUT Measurement Using the Clip Lead Keysight 42941A Impedance Probe Kit...

  • Page 25: Specifications

    Specifications Specifications 4 Specifications This chapter provides specifications of the 42941A test fixture. Specifications Applicable Instruments Impedance Analyzer Frequency 40 Hz to 120 MHz Maximum Voltage ± 42 V peak max. (AC+DC) Output Impedance 25 Ω (Nominal) DC coupled Operating temp.
  • Page 26 Specifications Specifications Keysight 42941A Impedance Probe Kit...

  • Page 27: Service

    Serial Number for RoHS 42941A: “MY432xxxxx and above” / “SG432xxxxx and above” Maintenance An exploded view of the 42941A for parts identification is shown in Figure 5-1 Figure 5-2. Due to limited availability of RoHS compliance station and technical difficulties in RoHS soldering, only parts and support level that do not require RoHS soldering are supported.
  • Page 28 Service Maintenance Figure 5-1 Replaceable Parts (part 1 of 2) Keysight 42941A Impedance Probe Kit...
  • Page 29 42941-61672 RF CBL ASSY 1400-0719 1400-3284 CABLE TIE 0515-1718 0515-0382 SCR M4X12 3050-0893 3050-0893 WSHR-FL 42941-61604 42941-61674 RF CBL ASSY 42941-24006 42941-24006 PLATE 42941-66501 42941-66601 BOARD 0515-1550 0515-0372 SCR M3-L 8 P-H 42941-24005 42941-24005 BLOCK Keysight 42941A Impedance Probe Kit...
  • Page 30 Service Maintenance Figure 5-2 Replaceable Parts (part 2 of 2) Keysight 42941A Impedance Probe Kit...
  • Page 31 16047-40002 INSULATOR 42942-25006 42942-25006 GUIDE BNC 0515-1551 0515-0374 SCR M3-L 8 P-H 42942-00603 42942-00603 COVER 42941-24003 42941-24003 GUIDE 0515-0914 0515-1946 SCR-MACH M3X0.5 42941-00602 42941-00602 COVER BOTTOM 1460-2615 1460-2615 SPRING 42941-24004 42941-24004 SHAFT 0510-0083 0510-0083 RTNR-R Keysight 42941A Impedance Probe Kit...
  • Page 32 Service Maintenance Keysight 42941A Impedance Probe Kit...
  • Page 33 This information is subject to change without notice. © Keysight Technologies 1999 - 2019 Edition 5, August 2, 2019 *42941-90010* 42941-90010 www.keysight.com...

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