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Quantum Design CM-C User Manual

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VSM Oven Option User's Manual
Part Number 1097-100, A3

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Summary of Contents for Quantum Design CM-C

  • Page 1 VSM Oven Option User’s Manual Part Number 1097-100, A3...
  • Page 2 Quantum Design 6325 Lusk Boulevard San Diego, CA 92121 Technical support (858) 481-4400 (800) 289-6996 (858) 481-7410 Fourth edition of manual completed May 2011. Trademarks All product and company names appearing in this manual are trademarks or registered trademarks of their respective holders.

  • Page 3: Table Of Contents

    1.6.1 VSM High-Temperature Heater .................... 1-4 1.6.2 Cryogens..........................1-5 1.6.3 Magnets ..........................1-5 1.6.4 Electricity ..........................1-6 1.7 Contacting Quantum Design ......................1-6 CHAPTER 2 Installing and Removing the VSM Oven Option ..............2-1 2.1 Introduction..........................2-1 2.2 Overview of the VSM Oven Installation ..................2-1 2.2.1 Terminology ..........................
  • Page 4 5.4 VSM Oven Electronics .........................5-6 5.4.1 Heater-Stick Connector ......................5-6 5.4.2 Wired Access-Port Connector ....................5-7 5.4.3 Oven-Control Cable .......................5-8 5.4.4 Model CM-C (VSM Oven Module) ..................5-8 CHAPTER 6 VSM Oven Software ........................6-1 6.1 Introduction...........................6-1 6.2 Using the VSM Oven for Measurements..................6-1 6.3 Changes Associated with the VSM Oven ..................6-1...
  • Page 5 Model CM-C VSM Oven Module ................... A-1 A.1 Introduction..........................A-1 A.2 Functional Overview........................A-1 A.2.1 Functional Block Diagram.....................A-2 A.2.2 Specifications ........................A-2 A.3 Model CM-C VSM Oven Module: Front Panel................A-3 A.3.1 Indicator LEDs ........................A-3 A.3.2 Front Panel Connectors and Pinout Tables................A-3 A.3.2.1 JC-1 Oven Connector......................A-3 A.3.2.2 JC-2 AUX Connector......................A-4 A.4 Model CM-C VSM Oven Module: Rear Panel................A-5...
  • Page 6 JC-2 pin assignments on the AUX connector ............A-4 Figure A-5. Rear panel of Model CM-C VSM Oven module ............. A-5 Figure A-6. QD CAN connector on rear of the Model CM-C VSM Oven module ....A-5 VSM Oven Option User’s Manual, Rev. A3 Quantum Design May 2011...
  • Page 7 JC-1 pinout connections from the oven-control cable to the Model CM-C VSM Oven module ......................A-4 Table A-4. Pinout table for QD CAN connector on rear of the Model CM-C VSM Oven module........................A-6 Quantum Design VSM Oven Option User’s Manual, Rev. A3...

  • Page 9: Preface

    Contents of the Manual o Chapter 1 provides an overview of the VSM Oven option, the theory of operation, safety recommendations, and contact information for Quantum Design.. o Chapter 2 provides instructions for installation and removal of the VSM Oven option.

  • Page 10: Conventions In The Manual

    Chapter 6 describes the differences you will encounter when using MultiVu with the VSM Oven option compared to the standard VSM equipment. o Appendix A provides a functional description of the Model CM-C VSM Oven module, including diagrams and electrical specifications.

  • Page 11: Introduction To The Vsm Oven Option

    Section 1.3 describes notable features Section 1.6 lists contact information at ○ ○ of the VSM Oven option. Quantum Design and its service centers. Section 1.4 describes the VSM Oven ○ option theory of operation. Overview The Oven for the VSM provides a way to make sensitive D.C. magnetometry measurements at controlled temperatures from 300 K up to 1000 K.

  • Page 12: Notable Features Of The Vsm Oven Option

    Figure 1-1 illustrates the hardware and functional connections necessary for operating the VSM Oven. A new CAN module, the Model CM-C VSM Oven module, has been introduced to handle the temperature control of the VSM Oven heater stick. This module plugs into the Model 1000 Modular Control System, which communicates with the PC via the CAN network cable.

  • Page 13: Figure 1-2. Control Circuit For The Vsm Oven Heater Stick

    Figure 1-2 below shows a simplified schematic of the control circuit for the heater stick. “PID” refers to the Proportional-Integrator-Differential temperature control of the A.C. drive for the heater. Figure 1-2. Control circuit for the VSM Oven heater stick Quantum Design VSM Oven Option User’s Manual, Rev. A3 May 2011...

  • Page 14: Overheating Prevention Mechanisms

    The VSM has safety features to prevent accidents from causing injury or serious equipment damage. If you use the equipment in a manner that is not specified by Quantum Design, the protection afforded by the equipment may be impaired.

  • Page 15: Cryogens

    At the current time, 5 m should be a large enough distance to protect wearers of metallic implants or medical devices from most magnetic fields produced by Quantum Design magnets. However, the safe distance from newer magnets (in development) could be greater. Hence, personnel who work with and around the superconducting magnets should thoroughly review documentation for new equipment.

  • Page 16: Electricity

    Section 1.7 Chapter 1 Contacting Quantum Design Introduction to the VSM Oven Option  Keep all iron, nickel, and other ferromagnetic objects at least 5 m (16.5 ft.) from the dewar. Large magnets, such as superconducting magnets, can attract iron and other ferromagnetic materials with great force.

  • Page 17: Installing And Removing The Vsm Oven Option

    Install sample refers to inserting a sample and sample rod into the PPMS using the VSM ○ Install/Remove Sample Wizard. This wizard is available only while the VSM option is activated within MultiVu. Quantum Design VSM Oven Option User’s Manual, Rev. A3 May 2011...

  • Page 18: Vsm Oven Components

    Table 2-1 lists the components of the QD VSM Oven option. Please verify that you have received them all before you start the installation. Table 2-1. System components of the VSM Oven option COMPONENT PART NUMBER ILLUSTRATION Figures 1-1, Model CM-C VSM Oven Module* 4101-200 5-10–5-11, A-1, A-6 Wired Access-Port Assembly 4097-020 Figures 1-1, 5-3–5-4 4097-010...

  • Page 19: Initial Installation Of The Vsm Oven Option

    1) Deactivate any active options and close the MultiVu program 2) Turn off power to the CAN control tower 3) Insert the VSM Oven Module CM-C into a slot in the CAN control tower 4) Turn on the CAN control tower 5) In the file C:\Qdxxx\Vsm\System\VSM.INI (where xxx is Ppms, VersaLab, or...

  • Page 21: Preparing Samples For The Vsm Oven

    (see below) in the VSM Oven Option User's Kit (Figure 5-5). The sample also must be strong enough to remain intact when it is chipped off the heater stick after it has been measured. Quantum Design VSM Oven Option User’s Manual, Rev. A3...

  • Page 22: Sample Mounting

    Record the sample offset by using the scale on the mounting platform. The offset should be a value between 33 mm and 37 mm for the best temperature accuracy, as shown in Figure 3-1A. VSM Oven Option User’s Manual, Rev. A3 Quantum Design May 2011...
  • Page 23 4. Plug the heater stick into the bottom end of the VSM oven sample rod. 5. Verify that the connector for the heater stick is fully engaged with the sample rod. 6. The sample is now ready to install in the system. Quantum Design VSM Oven Option User’s Manual, Rev. A3 May 2011...

  • Page 25: Vsm Oven Measurements

    Section 4.2 summarizes the ○ Section 4.4 describes how to take measurement process when using the measurements with the VSM Oven Quantum Design VSM Oven option. option. ○ Section 4.3 describes how to install samples for taking VSM Oven measurements.

  • Page 26: Installing A Sample

    VSM Install wizard in oven mode; see the VSM Option User’s Manual for more detail about the dialogs in this wizard. 1. In the Install tab of the VSM Control Center, click on the Install/Remove Sample button. VSM Oven Option User’s Manual, Rev. A3 Quantum Design May 2011...

  • Page 27: Figure 4-2. Vsm Install Wizard, Page 2: Selecting The Vsm Operating Mode

    300 gauss when it passes through the linear motor transport. If this is unacceptable for your samples, please contact Customer Service at Quantum Design. 4. Click on the Next >> button at the bottom of the window. This will open page 2 of the VSM Install wizard (Figure 4-2), in which you designate the mode of measurement (standard or oven).

  • Page 28: Figure 4-3. Vsm Install Wizard, Page 4 (Oven Mode): Sample-Holder Coordinates For Center

    (Figure 4-4), otherwise you must go back to the sample insertion page and check the electrical connections to the sample rod or use a different heater stick. Figure 4-4. VSM install wizard, page 5: testing the heater stick. VSM Oven Option User’s Manual, Rev. A3 Quantum Design May 2011...

  • Page 29: Taking Vsm Oven Measurements

    VSM mode, there will be a slight thermal expansion of the sample chamber. Hence, you will improve accuracy by using touchdowns for approximately 30 minutes after the sample reaches room temperature. Otherwise, we recommend selecting No Automatic Centering (Figure 4-6). Quantum Design VSM Oven Option User’s Manual, Rev. A3 May 2011...

  • Page 30: Peak Vibration Amplitude

    VSM Oven is operating, by comparison with 5 mm peak for the standard VSM. This is done in order to reduce heating of the linear motor drive coil in the high vacuum state. Figure 4-7. VSM Measurement dialog box: Advanced tab VSM Oven Option User’s Manual, Rev. A3 Quantum Design May 2011...

  • Page 31: Vsm Oven Hardware

    Refer to Chapter 2 for instructions on installing the VSM Oven hardware. 5.2.1 VSM Oven Heater Stick Figure 5-1. Front and back view of the VSM Oven heater stick Quantum Design VSM Oven Option User’s Manual, Rev. A3 May 2011...

  • Page 32: Oven Sample Rod

    Never pull on the cable while unplugging it, as you Figure 5-2. Oven sample rod might loosen the electrical connections. VSM Oven Option User’s Manual, Rev. A3 Quantum Design May 2011...

  • Page 33: Wired Access Port

    VSM linear motor transport. This port screws onto the top of the VSM linear motor Quantum Design VSM Oven Option User’s Manual, Rev. A3...

  • Page 34: Vsm Oven Option User's Kit

    (see Chapter 3). The portable toolbox is a convenient way to organize these items, which are listed below. Figure 5-5. VSM Oven Option User's Kit VSM Oven Option User’s Manual, Rev. A3 Quantum Design May 2011...

  • Page 35: Sample Mounting Platform

    The heater stick locks are used to hold the heater stick firmly in place so that it does not slip out of position while you mount a sample. After you have positioned the heater stick properly, rotate Quantum Design VSM Oven Option User’s Manual, Rev. A3...

  • Page 36: Copper-Foil Radiation Shields

    (Figure 5-8) with a connector identical to that in Figure 5-7. Refer to Figure 1-2 for a schematic of the heater stick. VSM Oven Option User’s Manual, Rev. A3 Quantum Design May 2011...

  • Page 37: Wired Access-Port Connector

    FUNCTION PINS RESISTANCE Heater A 200 Ω Heater B 10 kΩ Thermistor A < 1 Ω Thermocouple + 6 Ω Thermistor B Thermocouple – Quantum Design VSM Oven Option User’s Manual, Rev. A3 May 2011...

  • Page 38: Oven-Control Cable

    5.4.4 Model CM-C (VSM Oven Module) Figures 5-10 and 5-11 show the front and back of the Model CM-C VSM Oven module (4101- 200), which provides the heater with current and reads back temperature information from the heater stick. The oven module also handles all the temperature control for the VSM Oven option.

  • Page 39: Figure 5-11. Back Panel Of The Model Cm-C Vsm Oven Module

    Chapter 5 Section 5.4 VSM Oven Hardware VSM Oven Electronics Figure 5-11. Back panel of the Model CM-C VSM Oven module Quantum Design VSM Oven Option User’s Manual, Rev. A3 May 2011...

  • Page 41: Vsm Oven Software

    Using the VSM Oven for Measurements The procedures for using the Quantum Design VSM in the oven mode are almost identical to those for using it in the standard VSM mode. In fact, when you installed the VSM Oven software, it was incorporated into MultiVu as part of the standard VSM software, so you will use the same software to take measurements with the standard (low temperature) VSM and the VSM Oven.

  • Page 42: Changes To Cryopump High-Vacuum Operations

    VSM Oven to a value from 300 K to 1000 K by using MultiVu. The maximum recommended slew rate is 200 K/min (by comparison with 20 K/min in other options) because of VSM Oven Option User’s Manual, Rev. A3 Quantum Design May 2011...

  • Page 43: Vsm Control Center Components

    VSM software, most notably by including a dialog in which you choose to operate in Oven mode or standard VSM mode (Figure 6-2). Quantum Design VSM Oven Option User’s Manual, Rev. A3 May 2011...

  • Page 44: Figure 6-2. Vsm Install Wizard: Selecting The Vsm Operating Mode

    Also, the system initiates high vacuum before completing the wizard. Other than the above-mentioned changes to the VSM Install wizard, the same sample-installation process is used in the standard and oven modes. VSM Oven Option User’s Manual, Rev. A3 Quantum Design May 2011...

  • Page 45: Vsm Oven Measurements

    VSM measurements. Recall that Do Touchdown Centering at Intervals is the default in the standard VSM mode. Quantum Design VSM Oven Option User’s Manual, Rev. A3 May 2011...

  • Page 46: Figure 6-5. Advanced Tab Of Vsm Measurement Dialog Box, Showing Peak Amplitude During Oven Use

    Section 6.4 Chapter 6 MultiVu and VSM Oven-Enabled Software VSM Oven Software Figure 6-5. Advanced tab of VSM Measurement dialog box, showing peak amplitude during oven use VSM Oven Option User’s Manual, Rev. A3 Quantum Design May 2011...

  • Page 47: Model Cm-C Vsm Oven Module

    Model CM-C VSM Oven module. Functional Overview The Model CM-C VSM Oven module (4101-200) is a temperature-control module that was designed for the specific needs of the VSM Oven option. Figure A-1 shows the module and its front panel.

  • Page 48: Functional Block Diagram

    Appendix A Functional Overview Model CM-C VSM Oven-Control Module A.2.1 Functional Block Diagram Figure A-2. Functional block diagram of Model CM-C VSM Oven module A.2.2 Specifications Table A-1. Electrical specifications for the Model CM-C VSM Oven module Heater Voltage Compliance Limit...

  • Page 49: Model Cm-C Vsm Oven Module: Front Panel

    A.3.1 Indicator LEDs The front panel of the Model CM-C VSM Oven module has two LEDs in the top left, as shown in Figure A-1. The PWR LED indicates the power-on status of the module. The COP (CANopen Protocol) LED indicates the status of the CAN network controller. Table A-2 outlines the LED states and provides solutions in the event of a problem.

  • Page 50: A.3.2.2 Jc-2 Aux Connector

    A.3.2.2 JC-2 AUX CONNECTOR The JC-2 AUX connector is available for future expansion of the VSM Oven option, including transport measurements. Please contact Quantum Design before you attempt to use the connector. Note the pinout connections shown in Table A-3 for this connector.

  • Page 51: Model Cm-C Vsm Oven Module: Rear Panel

    If the selector is set to “0,” the module uses its default address. For a Model CM-C VSM Oven module, the default address is 12.

  • Page 52: Table A-4. Pinout Table For Qd Can Connector On Rear Of The Model Cm-C Vsm Oven

    Section A.4 Appendix A Model CM-C VSM Oven Module: Rear Panel Model CM-C VSM Oven Module Table A-4. Pinout table for QD CAN connector on rear of the Model CM-C VSM Oven module FUNCTION –24 V CAN Low Power Return (24V)

  • Page 53: Index

    Model 1000 Modular Control System, 1-2, 2-3, A-5 CAN Network Adapter, 2-3 Model 6000, 2-2–2-3 cement, alumina, See alumina cement Model CM-C Oven module, 1-2, 2-3, 2-9, 5-9, A-1 Centering tab, 6-5 motor, linear, See linear motor transport coilset, See detection coils, 1-2, 4-1, 4-5, 5-6...
  • Page 54 3-3, 5-5 user's kit, VSM Oven , 5-4 vibration, See Peak Amplitude warnings, 1-4–1-6 warning and error messages, A-3 wired access port, 1-2, 2-2, 5-3 connector, 5-7 Index-2 VSM Oven Option User’s Manual, Rev. A3 Quantum Design May 2011...

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