Keysight Technologies 16452A Operation And Service Manual
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Keysight Technologies 16452A Operation And Service Manual

Keysight Technologies 16452A Operation And Service Manual

Liquid test fixture
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Keysight 16452A Liquid Test Fixture
Operation and
Service Manual

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Summary of Contents for Keysight Technologies 16452A

  • Page 1 Keysight 16452A Liquid Test Fixture Operation and Service Manual...

  • Page 2: Nickel Corrosive Liquid

    EULA. Keysight Keysight Technologies, Inc. as with the terms of such license. shall be under no obligation to governed by United States and U.S.

  • Page 3: Table Of Contents

    Preparation of Test Fixture for Use..........21 Connecting the SMA-BNC Adapters to the 16452A ......21 Separating the Test Fixture into High and Low Electrodes .
  • Page 4 Silver-copper and gold-copper ..........2 Keysight 16452A Operation and Service Manual...

  • Page 5: General Information

    Keysight 16452A Liquid Test Fixture Operation and Service Manual General Information The purpose of this manual is to enable you to use your 16452A Liquid Test Fixture efficiently and confidently. Manual Summary This manual contains the following: • The Specifications of the 16452A (see this chapter) •...

  • Page 6: Applicable Instrument

    For the temperature range of 0 to +55°C 16048A Test leads For the temperature range of -20 to +125°C 16048G/H + 1250-2375 1. These cables are not furnished with the 16452A. Order according to your measurement requirements. Keysight 16452A Liquid Test Fixture...

  • Page 7: Specifications

    Figure 1-1 Electrode Size of the 16452A (section view) Operating Frequency 20 Hz to 30 MHz The operating frequency differs according to the instrument that the 16452A is used with. Materials Test fixture body (electrodes, spacers, liquid inlet and outlet)
  • Page 8 The typical corrosive characteristics of these materials are shown in Appendix Operating Temperature -20 to +125ºC The measurement cable’s operating temperature is: 16048A 0 to +55ºC 16048G/H + 1250-2375 -20 to +150ºC Non-Operating Temperature -40 to 70ºC Keysight 16452A Liquid Test Fixture...

  • Page 9: Supplemental Performance Characteristics

    Short residual (when using the furnished shorting plate with a 1.3mm spacer) Ls (equivalent series inductance) 20nH Rs (equivalent series resistance) 0.5Ω Temperature expansion coefficient ≤ ±300ppm/ºC Add itional impedance measurement In the following measurement, • The SHORT compensation is done. Keysight 16452A Liquid Test Fixture...
  • Page 10 Error = A + B [%] (See Figure 1-4) Where, :Obtained from Figure 1-2 :Obtained from Figure 1-3 Figure 1-2 Fixture Error (A) The measurement accuracy is a complex function of the measurement instrument accuracy and the fixture error. Keysight 16452A Liquid Test Fixture...
  • Page 11 General Information Supplemental Performance Characteristics Figure 1-3 Fixture Error (B) Figure 1-4 Fixture Error (A+B) Keysight 16452A Liquid Test Fixture...
  • Page 12 General Information Supplemental Performance Characteristics Keysight 16452A Liquid Test Fixture...

  • Page 13: Initial Inspection

    Inspect the shipping container for damage. Keep the shipping materials until the inspection is completed. • Verify that the shipping container contains everything shown in Figure 2-1 and listed in Table 2-1. • Inspect the exterior of the 16452A for any signs of damage.

  • Page 14: Product Overview

    Initial Inspection Product Overview Product Overview Figure 2-1 16452A Product Overview Keysight 16452A Liquid Test Fixture...
  • Page 15 Stand foot 16452-00611 The O-rings are assembled in the 16452A. The 1.3mm spacer is assembled in the 16452A. The cap is on the SMA-BNC adapter. The carrying case and the Operation and Service Manual are not shown in the Figure 2-1...
  • Page 16 The stand body is assembled using the two angle irons (16452-01201) and the four screws (0515-0914). If you ordered a measurement cable (16048A, or 116048G/H + 1250-2375), check that the cable is included. Figure 2-2 Assembling the Fixture Stand Keysight 16452A Liquid Test Fixture...

  • Page 17: Repackaging The Test Fixture For Shipment

    Wrap the liquid test fixture in heavy paper and pack in anti-static plastic packing material. Use sufficient shock absorbing material on all sides of the 16452A to provide a thick, firm cushion and to prevent movement. Seal the shipping container securely and mark it FRAGILE.
  • Page 18 Initial Inspection Repackaging the Test Fixture For Shipment Keysight 16452A Liquid Test Fixture...

  • Page 19: Operation

    Keysight 16452A Liquid Test Fixture Operation and Service Manual Operation Introduction This chapter describes how to measure the dielectric constant ( ε ) of the liquid using the 16452A. • The standard measurement sequence is shown in this chapter. •...

  • Page 20: Measurement Requirements

    SMA-BNC adapter (furnished with the 16452A) • Measurement cable (16048A or 16048G/H + 1250-2375) • 1.3 mm spacer for the SHORT compensation (furnished with the 16452A) • Shorting plate for the SHORT compensation (furnished with the 16452A) • A spacer (choose one of the furnished four spacers) •...

  • Page 21: Preparation Of Test Fixture For Use

    Preparation of Test Fixture for Use Before connecting the test fixture, you must connect the SMA-BNC adapters to the 16452A terminals. Also, the spacer and shorting plate must be set between the electrodes for the SHORT compensation. The 16452A can be separated into High and Low electrodes to make it possible to set the spacer and the shorting plate.

  • Page 22: Separating The Test Fixture Into High And Low Electrodes

    Separating the Test Fixture into High and Low Electrodes Cleaning and Drying the Electrodes To get a better measurement, the 16452A electrodes must be cleaned after using. If the 16452A’s electrodes are smeared, wash and dry them thoroughly before assembling. Any impurities deposited on the electrode will affect the measurement.

  • Page 23: Assembling The Test Fixture

    Operation Preparation of Test Fixture for Use Assembling the Test Fixture Set the 1.3 mm spacer (electrode distance is 0.3mm) and the shorting plate as required. Then assemble the 16452A as shown in Figure 3-3. Figure 3-3 Assembling the Test Fixture for a SHORT compensation...

  • Page 24: Connecting The Test Fixture

    Operation Connecting the Test Fixture Connecting the Test Fixture Use a 4-terminal-pair BNC cable to connect the 16452A and your measurement instrument. Keysight Technologies recommends using the following cables: For the temperature range of 0 to +55ºC 16048A Test leads For the temperature range of -20 to +125ºC...

  • Page 25: Fixture Stand Usage

    Operation Connecting the Test Fixture Fixture Stand Usage The fixture stand sets the test fixture stable and upright as required during the measurement. Figure 3-6 Fixture Stand Usage Keysight 16452A Liquid Test Fixture...

  • Page 26: Checking The Short Residual

    1. Check the connection of the test fixture and the measurement cable. Also, check the shorting plate connection. • Is the spacer width in the 16452A 1.3mm? • Does the shorting plate contact to both high and low electrodes? •...

  • Page 27: Setting The Instrument For Capacitance Measurement

    Confirm that the 1.3 mm spacer and the shorting plate are set as specified in “Preparation of Test Fixture for Use” on page For the measurement setting, please refer to your measurement instrument. The OPEN and LOAD compensations are not required for the 16452A. Keysight 16452A Liquid Test Fixture...

  • Page 28: Air Capacitance (C0) Measurement

    Separating the Test Fixture into High and Low Electrodes 2. Remove the shorting plate and select the spacer that is to be used to measure the liquid. Then assemble the test fixture. Figure 3-8 Test Fixture Assemble for Measurement Keysight 16452A Liquid Test Fixture...
  • Page 29 If the value is not correct, check the following: • Was the spacer correctly chosen and set? • Are the O-rings set correctly? Are the high and low electrodes put tightly together? • Then perform the measurement procedure again. Keysight 16452A Liquid Test Fixture...

  • Page 30: Liquid Capacitance And Resistance (Cp, Rp) Measurement

    To prevent any accidents, establish a strict process for the measurements. (For example, using appropriate ventilation, a gas mask, and gloves.) 1. Pour the liquid under test into the 16452A until the liquid fills tube Pour the liquid gently so that air does not get mixed in with the liquid.
  • Page 31 The data is used to calculate the dielectric parameter. DO NOT apply a dc test signal to the 16452A. The dc signal can cause electrolysis of the liquid. When you use the 16452A in a thermostatic chamber or an oil tank, see the “Performing Temperature Measurements”...

  • Page 32: Drain The Liquid (After Measurement)

    Drain the Liquid (After Measurement) 1. Turn the lid of the liquid outlet and take it o. Drain the liquid (Figure 3-10). Figure 3-10 Taking the Lid Off 2. Wash and dry the test fixture. Keysight 16452A Liquid Test Fixture...

  • Page 33: Data Processing- Calculate Dielectric Parameter From Measurement Data

    ) is defined as the ratio of the material's dielectric constant ( ) to that of a vacuum ( ε = 8:854 x 10 ·  ·  - - - -  Also, ·  ' j'' – Loss tangent ''  - - - - ' Keysight 16452A Liquid Test Fixture...

  • Page 34: Capacitive Measurement Method

    Where, ' Relative dielectric constant '' Dielectric loss The 16452A and Keysight impedance analyzer/LCR meter use the “Capacitive Method” for obtaining relative permittivity by measuring the capacitance of a material that is sandwiched between parallel electrodes. Capacitive Measurement Method ' ''...
  • Page 35 - - - - - - - - - - - - - – C Therefore, ·  - - - - - - - - - - - - - - - - - - - - - - - -  C  Keysight 16452A Liquid Test Fixture...

  • Page 36: Performing Temperature Measurements

    • When you use the 16452A in an oil tank, soak the whole circle shown in Figure 3-13 (the circle shows the size and position of the liquid space of the 16452A).

  • Page 37: Service

    Table 4-3 list the support parts for RoHS and non-RoHS compliance 16452A Liquid Test Fixture. All the listed items are changed at RoHS conversion. 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 38 Service Assembly Replacement Figure 4-1 16452A Replaceable Parts (Major Parts) Table 4-1 Replaceable Parts (Major Parts) Part Number Description RoHS Description Compliant Replacement Part 16452-60002 Low Electrode 16452-60002 Low Electrode Assembly Assembly 16452-24001 Screw 16452-24001 Screw 16452-00601 Spacer, 1.3mm 16452-00601 Spacer, 1.3mm...
  • Page 39 Assembly 0515-0994 Spacer 16452-60001/ High Electrode Assembly/ 16452-60002 Low Electrode Assembly 1252-5831 Waterproof Cap 1252-5831 Waterproof Cap for BNC for BNC Connector Connector 16452-01201 Angle Iron for the 16452-01201 Angle Iron for the Stand Stand Keysight 16452A Liquid Test Fixture...
  • Page 40 16452-00611 Plate for the Stand Foot Foot 0515-0914 M3 Screw for the 0515-0914 M3 Screw for the Stand Stand 16452-60101 Carrying Case 16452-60111 Carrying Case 16452-90000 Operation and 16452-90000 Operation and Service Manual Service Manual Keysight 16452A Liquid Test Fixture...

  • Page 41: Electrode Assembly

    Service Assembly Replacement Electrode Assembly Figure 4-2 16452A Replaceable Parts (Around SMA Connector) Table 4-3 16452A Replaceable Parts (Around SMA Connector) Part Number Description RoHS Description Compliant Replacement Part 16452-61603 SMA Cable 16452-60001 High Electrode Assembly for Assembly High Electrode...

  • Page 42: Assembling Procedure For Electrode

    Service Assembly Replacement Table 4-3 16452A Replaceable Parts (Around SMA Connector) Part Number Description RoHS Description Compliant Replacement Part 2190-0654 Washer, M2 16452-60001/ High Electrode Assembly/ 16452-60002 Low Electrode Assembly 0515-0976 Screw, M2 16452-60001/ High Electrode Assembly/ 16452-60002 Low Electrode...

  • Page 43: Troubleshooting

    The angle should be close to 90 º . Also check the shield of the semi-rigid cables are connected only at the copper round plate. Do not polish the surface with powder to protect the electrode. Keysight 16452A Liquid Test Fixture...
  • Page 44 Service Troubleshooting Keysight 16452A Liquid Test Fixture...

  • Page 45: A:.liquids That Corrode The Test Fixture

    Do not apply DC test signal (or low-frequency test signal) to electrolyte solutions (ionic solutions) such as salt. The DC signal (or low-frequency signal) can cause electrolysis reaction of the liquid. Keysight 16452A Operational and Service manual...
  • Page 46 Ceramic (alumina: Al ) Corrosive Liquid Aqueous solution of fluoride corrodes the ceramic. Viton (Fluoro rubber) Corrosive Liquid Ketone and ester corrode the Vition. Silver-copper and gold-copper Strong acid liquid corrodes silver copper and gold copper. Keysight 16452A Operation and Service Manual...
  • Page 47 This information is subject to change without notice. © Keysight Technologies 1994-2018 Edition 6 April 2018 *16452-90000* 16452-90000 www.keysight.com...

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