Advertisement

Quick Links

User Manual - Original Instructions
MicrostatN

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the MicrostatN and is the answer not in the manual?

Questions and answers

Summary of Contents for Oxford Instruments MicrostatN

  • Page 1 User Manual - Original Instructions MicrostatN...
  • Page 2 – EN 50581:2012 Technical documentation for the assessment of electrical and electronic products with respect to the restriction of hazardous substances. The authorised compiler of the technical file is at Oxford Instruments NanoScience, Tubney Woods, Abingdon, Oxon, OX13 5QX, United Kingdom.
  • Page 3 Use of the equipment for purposes other than those intended and peut causer des blessures graves. Utilisez un équipement de pro- expressly stated by Oxford Instruments NanoScience, as well as tection individuelle, y compris la protection des mains et des yeux.
  • Page 4 EN55011:2009+A1:2010 Emissions standard Electrical equipment for measurement, control and laboratory use: EMC requirements. Please refer to the user manual for more details. Contact us at : Oxford Instruments NanoScience. www.oxford-instruments.com for details. © 2017 Oxford Instruments Nanoscience PSS-MN-5.0.0 (28ff3d8) Nov 2017...
  • Page 5 Microstat N Manual Oxford Instruments Nanoscience Sep 2017...
  • Page 6: Table Of Contents

    Contents MicrostatN - Principles of Operation 1.1 Revision history ........... . .
  • Page 7 9.3 Troubleshooting ........... . . © 2017 Oxford Instruments Nanoscience...
  • Page 8: Microstatn - Principles Of Operation

    All such warranties are hereby excluded to the fullest extent permitted by law. Oxford Instruments will not be responsible for the accuracy of the information contained in this document, which is used at your own risk and should not be relied upon. The information could include technical inaccuracies or typographical errors. Changes are periodically made to the information contained herein;...
  • Page 9: Introduction

    Any resultant non-compliance damage, or personal injury would be the fault of the owner or user. Use of the equipment for purposes other than those intended and expressly stated by Oxford Instruments, as well as incorrect use or operation of the equipment, may relieve Oxford Instruments or its agent of the responsibility for any resultant non-compliance damage or injury.
  • Page 10: Restrictions On Use

    • Contact information : how we can contact you. email/telephone. • Details of your query : The nature of your problem, part numbers of spares required, etc. Please contact Oxford Instruments first before attempting to service, repair or return components. 2.6 Contact information Europe, Middle East, Africa and India (EMEAI) OINS, Tubney Woods, Abingdon, Oxon, OX13 5QX, UK Tel: +44(0)1865 393200 (sales) Tel: +44(0)1865 393311 (support) Fax: +44(0)1865 393333 (sales and support) Email: nanoscience@oxinst.com (sales) Email:...
  • Page 11 Microstat N Manual • Next - Safety Information © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 12: Safety Information

    3.1 Disclaimer Oxford Instruments assumes no liability for use of any document supplied with the system if any unauthorised changes to the content or format have been made.
  • Page 13: Specific Hazards

    The electrical supply to the system must include an isolation box to ensure that mains electrical power to the system can be isolated. The isolation box must allow the supply to be locked OFF, but must NOT allow the supply to be locked ON. © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 14: Protective Earth

    The correct operation of these relief valves is critical to the safety of the system. 3.9 Weight and lifting Incorrectly lifting heavy objects can cause severe injury. Use the appropriate lifting equipment, operated by fully © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 15: Magnetic Fields

    Areas where these chemicals are stored or used must be well ventilated to avoid the danger of suffocation. Oxygen level detection equipment should be installed in suitable locations to warn personnel if the oxygen concentration falls below a threshold value. Take precautions to prevent spillage of liquid cryogens. © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 16: Fire

    This precaution is especially important if you system includes a superconducting magnet. 3.14 Maintenance Observe the necessary maintenance schedule for the system. Consult Oxford Instruments if you are unsure about the required procedures. • Next - System Description ©...
  • Page 17: System Description

    4.1 The cryostat The MicrostatN is a continuous flow cryostat designed principally for to allow a sample to be cooled to a low temperature and studied with an optical microscope. The sample temperature is continuously variable between 77K and 500K. The special window arrangement allows the sample to be brought close to the objective lens of the microscope.
  • Page 18: Continuous Flow Cryostats

    This manual describes the operation of the system in conjunction with an Oxford Instruments Mercury iTC temperature controller. The cryostat can be operated manually if a temperature controller is not available, although it may be difficult to obtain good temperature control.
  • Page 19: The Gas Flow Pump And Flow Controller

    4.4 The gas flow pump and flow controller The Oxford Instruments GF4 gas flow pump is used to promote the flow through the cryostat. It is an oil-free, twin-piston pump with a nominal displacement of 42 litres per minute. The air leak rate is guaranteed to be less than 10cm /min.
  • Page 20: Installation

    Examine the system to make sure that it has not been damaged since it left the factory. If you find any signs of damage please contact Oxford Instruments immediately. To run this system you need the following components: •...
  • Page 21 Microstat N Manual Figure 5.1: Typical system set-up © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 22: Exhaust Gas Connections

    5.7 Electrical connections to the temperature controller The Mercury iTC has been configured by Oxford Instruments to suit the system ordered. When you first switch on the Mercury iTC you will see the instrument home screen, similar to that shown below: The Mercury iTC temperature controller should be connected to the cryostat as follows: •...
  • Page 23 Microstat N Manual Figure 5.2: Mercury home screen If you do not safeguard the system it is possible to cause serious damage. • Next - System Operation © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 24: System Operation

    You can control the temperature of the heat exchanger (and sample) between base temperature and 300K (or 500K with high temperature windows fitted). The Nitrogen flow and heater power have to be adjusted in order to reach the desired set point. © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 25: Controlling At A Set Temperature

    On the Mercury iTC home screen (see above), tap Control. Select the channel on the temperature controller corresponding to the sensor, which will be used to control the system. Select the desired temperature on the Mercury iTC and switch the Mercury iTC heater control to © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 26 Microstat N Manual Figure 6.2: Mercury PID table Figure 6.3: List of PID tables © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 27: Warming Up The System

    The sample holder, cold finger and wiring are now accessible. To remove the sample holder the retaining screws need to be removed. Before re-assembling, check the O-ring is clean, undamaged and lightly greased. Ensure that it is firmly pushed into place, to form a vacuum-tight seal. © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 28 6.6.2 Adjusting the sample position Different sample sizes can be accommodated by the use of different thickness copper sample holder adaptor plates. • Next - Service and Maintenance © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 29: Service And Maintenance

    • Change the sample • Modify or repair the wiring • Repair mechanical damage Follow the procedure set out in the Changing samples section of the Operation chapter. • Next - Appendices © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 30: Microstat N Specifications

    1PWR-U All single phase powered units supplied with the system can be used worldwide without the need for configuration. The maximum power consumption of each unit in this application is: Component Power Consumption MercuryiTC controller 450 W © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 31: Notes

    Microstat N Manual Component Power Consumption 8.6 Notes • None 8.7 Further Information • Test Specifications • Microstat-Optistat Index © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 32: Appendices

    130 Ω approx. D - E 130 Ω approx. D - F < 20 Ω A - C > 1 MΩ A - ground > 1 MΩ C - ground > 1 MΩ © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 33 Microstat N Manual Figure 9.1: Ten-pin seal configuration © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 34: Platinum Resistance Thermometer

    Check that the heater is switched off. Check that the flow rate is high enough, and that there is sufficient liquid in the storage dewar. Check the connections to the thermometer and make sure that it is working properly and in good thermal contact with the cryogen flow. © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...
  • Page 35 Check that the heater is not open circuit by checking from pins A to B. If so, the wiring will have to be repaired. Sensor not reading correctly Check the wiring. • Back to - Microstat N front page © 2017 Oxford Instruments Nanoscience MAN-MN-1.0.0 (28ff3d8) Sep 2017...

Table of Contents