Oxford Instruments Omicron NanoScience MercuryiTC User manual

Operator's Manual
MercuryiTC
©2014 Oxford Instruments
Omicron NanoScience
Operator’s Manual
Oxford Instruments
NanoScience
Issue 0
5
/Feb 2015 /
Original Instructions
MercuryiTC
Cryogenic environment controller
Issue 05 /
Feb 2015 / UMC0071
Omicron NanoScience
. All rights reserved.
Oxford Instruments
Omicron
NanoScience
Original Instructions
Cryogenic environment controller
Feb 2015 / UMC0071
Omicron

Operator's Manual
Issue 05 /
Feb 2015 / UMC0071
MercuryiTC
©2014 Oxford Instruments Omicron NanoScience. All rights reserved.
Contents
PREFACE.................................................................................................................................. 1
Use of this manual ................................................................................................................................. 1
Customer support................................................................................................................................... 3
Health and safety information ................................................................................................................4
Disclaimers............................................................................................................................................. 5
Acknowledgements................................................................................................................................ 5
Acronyms ............................................................................................................................................... 6
Certification compliance statements ......................................................................................................7
About Oxford Instruments ...................................................................................................................... 8
1 HEALTH AND SAFETY....................................................................................................... 9
1.1 Warnings........................................................................................................................ 9
1.1.1 Protective and functional ground ............................................................................................9
1.1.2 High voltage hazard..............................................................................................................10
1.1.3 Maintenance and adjustment................................................................................................10
1.1.4 Restrictions on use ...............................................................................................................10
1.2 Cautions....................................................................................................................... 11
1.2.1 Electrostatic caution..............................................................................................................11
1.2.2 Cooling caution ..................................................................................................................... 11
1.2.3 Acoustic noise caution..........................................................................................................11
1.3 Solid waste................................................................................................................... 12
2 Mercury iTC BASICS........................................................................................................ 13
2.1 MercuryiTC front and rear panels................................................................................. 14
2.2 Display and touch-screen............................................................................................. 15
2.3 Electrical power supply................................................................................................. 15
2.4 Temperature sensor circuits......................................................................................... 15
2.5 Heater circuits.............................................................................................................. 15
2.6 Optional cooling circuit control...................................................................................... 16
2.7 Remote interfaces........................................................................................................ 17
2.8 Functional Description.................................................................................................. 18

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2.9 Main components......................................................................................................... 19
2.9.1 Motherboard..........................................................................................................................20
2.9.2 Expansion slots and daughter boards ..................................................................................20
2.10 Alarms and interlocks............................................................................................... 22
3 GETTING STARTED ......................................................................................................... 23
3.1 Checking the electrical supply...................................................................................... 23
3.2 Mounting the equipment............................................................................................... 23
3.3 Connecting electrical power.......................................................................................... 24
3.4 Powering up the MercuryiTC for the first time............................................................... 24
3.5 The MercuryiTC touch screen ...................................................................................... 25
3.5.1 The home page.....................................................................................................................26
3.5.2 Custom home pages.............................................................................................................27
3.5.3 Channel summary widget .....................................................................................................27
3.5.4 Drop-down menus.................................................................................................................28
3.5.5 Scrolling ................................................................................................................................28
3.5.6 Soft keypads .........................................................................................................................29
3.5.7 Using arrows to adjust integer values...................................................................................31
3.5.8 Button labels .........................................................................................................................31
3.5.9 Common touch screen features............................................................................................31
3.5.10 Setting the date and time......................................................................................................32
3.6 Plotting signals on the MercuryiTC touch screen.......................................................... 33
3.6.1 Plot Configuration .................................................................................................................33
3.6.2 Scaling a plot.........................................................................................................................35
4 HOW TO MEASURE AND CONTROL TEMPERATURE................................................... 37
4.1 Heater and sensor connections.................................................................................... 38
4.1.1 Connecting thermocouples...................................................................................................38
4.2 Configuring a temperature sensor ................................................................................ 39
4.2.1 Configuring the sensor details ..............................................................................................40
4.2.2 To clear a widget configuration.............................................................................................42
4.3 Setting heater properties.............................................................................................. 43
4.4 Configuring a heater..................................................................................................... 44

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©2014 Oxford Instruments Omicron NanoScience. All rights reserved.
4.5 Configuring the heater control loop............................................................................... 46
4.5.1 Configuring manual heater control........................................................................................46
4.5.2 Configuring automatic heater control....................................................................................46
4.6 Changing a temperature set point in automatic control................................................. 48
4.7 Using the sweep function ............................................................................................. 49
4.7.1 The purpose of the sweep function.......................................................................................49
4.7.2 Using the sweep function......................................................................................................49
4.7.3 Loading a sweep...................................................................................................................51
4.7.4 Starting a sweep ................................................................................................................... 51
4.7.5 Stopping a sweep .................................................................................................................52
4.8 Using the ramp function................................................................................................ 52
4.8.1 The purpose of the ramp function.........................................................................................52
4.8.2 Using the ramp function........................................................................................................52
4.8.3 Starting a ramp .....................................................................................................................53
4.8.4 To disable ramp mode..........................................................................................................53
4.9 Configuring a gas valve................................................................................................ 54
4.9.1 Configuring manual control of the gas valve.........................................................................56
4.9.2 Configuring automatic control of the gas valve.....................................................................56
4.9.3 Changing a gas flow set point...............................................................................................58
4.10 Using a generic calibration-file.................................................................................. 58
4.10.1 Overview...............................................................................................................................58
4.10.2 Adjusting a generic calibration file ........................................................................................59
4.11 Types of temperature sensor.................................................................................... 60
4.11.1 Thermocouples .....................................................................................................................60
4.11.2 Metallic resistance thermometers (positive temperature coefficient)....................................61
4.11.3 Semiconductor resistance thermometers (negative temperature coefficient)......................61
4.11.4 Semiconductor diodes ..........................................................................................................61
4.11.5 Excitation current .................................................................................................................. 61
4.11.6 Calibration for different sensors............................................................................................62
4.11.7 Available generic calibration files..........................................................................................64
4.12 More about thermocouples....................................................................................... 65
4.12.1 Thermocouple principles.......................................................................................................65
4.12.2 Configuring for thermocouples..............................................................................................65
4.12.3 Reference junction compensation ........................................................................................67

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4.12.4 External reference junctions .................................................................................................67
4.12.5 Heater control interlock.........................................................................................................68
5 CRYOGEN LEVEL-METER............................................................................................... 70
5.1 Principles of operation.................................................................................................. 70
5.1.1 Operation of the board with a helium-level probe.................................................................70
5.1.2 Operation of the board with a nitrogen-level probe...............................................................71
5.1.3 Why different methods are used for the two liquids..............................................................71
5.2 Installing the level-meter board..................................................................................... 71
5.2.1 Removing the top cover........................................................................................................71
5.2.2 Fitting the board....................................................................................................................72
5.2.3 Basic check of board operation.............................................................................................74
5.3 Connecting the level probe........................................................................................... 74
5.4 Configuring MercuryiTC for helium level meter............................................................. 74
5.5 Configuring MercuryiTC for nitrogen level meter........................................................... 76
5.6 Setting up liquid nitrogen auto-fill.................................................................................. 78
6 MANAGING YOUR MERCURY......................................................................................... 80
6.1 General........................................................................................................................ 80
6.2 Display......................................................................................................................... 82
6.3 Devices ........................................................................................................................ 84
6.4 Clock............................................................................................................................ 85
6.5 File transfer.................................................................................................................. 86
6.6 Updates........................................................................................................................ 87
6.7 Access Level................................................................................................................ 89
6.8 Factory......................................................................................................................... 91
6.9 Save File pages............................................................................................................ 91
6.10 Load File pages........................................................................................................ 92
7 REMOTE OPERATION...................................................................................................... 94
7.1 Remote operation using RS232 or ISOBUS................................................................. 94

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7.1.1 Configuring RS232 and ISOBus...........................................................................................94
7.1.2 Serial RS232 cabling requirements ......................................................................................96
7.2 Remote operation using GPIB...................................................................................... 97
7.2.1 Configuring GPIB..................................................................................................................97
7.2.2 GPIB Cabling requirements..................................................................................................98
7.3 Remote operation using Ethernet................................................................................. 98
7.3.1 Configuring Ethernet.............................................................................................................98
7.3.2 Ethernet cabling requirements............................................................................................100
7.4 Remote operation using USB......................................................................................100
7.4.1 Configuring USB ................................................................................................................. 100
7.4.2 USB Cabling requirements .................................................................................................100
7.4.3 USB drivers.........................................................................................................................100
7.5 Switching MercuryiTC control between local and remote.............................................100
7.6 Testing remote connections.........................................................................................101
7.7 Programming examples...............................................................................................101
8 COMMAND REFERENCE GUIDE....................................................................................102
8.1 Nomenclature used in this section...............................................................................102
8.2 SCPI and legacy command sets..................................................................................102
8.3 SCPI commands .........................................................................................................102
8.3.1 SCPI protocols....................................................................................................................103
8.3.2 Reading the instrument identity ..........................................................................................103
8.3.3 Basic SCPI command structure..........................................................................................104
8.3.4 Verbs...................................................................................................................................104
8.3.5 Nouns..................................................................................................................................105
8.3.6 Invalid responses................................................................................................................114
8.4 Legacy commands......................................................................................................114
8.4.1 Legacy command protocols................................................................................................114
8.4.2 Legacy monitor commands.................................................................................................115
8.4.3 Legacy control commands..................................................................................................117
8.4.4 Legacy system commands ................................................................................................. 118
9 TEMPERATURE SENSOR DAUGHTER BOARD............................................................119

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9.1 Overview of the temperature sensor board..................................................................119
9.2 Installing a temperature sensor board .........................................................................119
9.2.1 Fitting the board..................................................................................................................119
9.2.2 Basic check of board operation...........................................................................................120
9.3 Circuit description of the temperature sensor board ....................................................120
9.3.1 Voltage measurement mode...............................................................................................120
9.3.2 Resistance measurement in constant current mode ..........................................................122
9.3.3 Resistance measurement in constant voltage mode..........................................................123
9.3.4 Calibrating the temperature measurement circuit...............................................................124
10 HEATER DAUGHTER BOARD ..................................................................................126
10.1 Installing a heater board..........................................................................................126
10.1.1 Fitting the board..................................................................................................................126
10.1.2 Connecting the heater.........................................................................................................126
10.2 Circuit description of the heater board.....................................................................126
10.2.1 Description of the heater circuit ..........................................................................................127
10.2.2 Calibrating the heater circuit...............................................................................................128
11 AUXILIARY I/O DAUGHTER BOARD ........................................................................129
11.1 Description of the auxiliary I/O board.......................................................................129
11.1.1 Auxiliary I/O board functions...............................................................................................129
11.1.2 Gas-flow control using a motorised needle-valve...............................................................130
11.2 Installing an auxiliary I/O board................................................................................130
11.2.1 Fitting the board..................................................................................................................130
11.2.2 Basic check of board operation...........................................................................................130
11.2.3 Connecting to the auxiliary I/O board .................................................................................131
11.2.4 Configuring an input on the auxiliary I/O board ..................................................................131
11.2.5 Configuring an output on the auxiliary I/O board................................................................132
12 PRESSURE BOARD...................................................................................................134
12.1 Description of the pressure board............................................................................134
12.1.1 Description of the pressure board circuit ............................................................................134
12.2 Installing a pressure board ......................................................................................137
12.2.1 Fitting the board..................................................................................................................137

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12.2.2 Basic check of board operation...........................................................................................137
12.2.3 Connecting to the pressure board ......................................................................................137
12.2.4 Configuring the pressure board ..........................................................................................139
12.2.5 Configuring the pressure sensor details.............................................................................139
12.3 Using the pressure board to control a pressure.......................................................141
13 GPIB DAUGHTER BOARD ........................................................................................142
13.1 Description of the GPIB daughter board..................................................................142
13.2 Installing a GPIB board............................................................................................142
13.2.1 Fitting the board..................................................................................................................142
13.2.2 Basic check of board operation...........................................................................................142
13.3 Connecting to the GPIB board.................................................................................143
14 THEORY OF CONTROL LOOPS................................................................................144
14.1 General information on control loops.......................................................................144
14.2 General information on temperature control loops...................................................144
14.2.1 Open loop operation ........................................................................................................... 145
14.2.2 On-Off control......................................................................................................................145
14.2.3 Proportional control.............................................................................................................146
14.2.4 Proportional control with integral action..............................................................................147
14.2.5 Proportional control with integral and derivative action ......................................................148
14.2.6 North American terminology ...............................................................................................149
14.2.7 PID tables............................................................................................................................149
14.3 Theory of gas-flow control .......................................................................................150
14.3.1 Overview of gas control ......................................................................................................150
14.3.2 Manual control of the gas flow............................................................................................151
14.3.3 Automatic control of the gas flow........................................................................................151
14.3.4 Heater target tables ............................................................................................................152
14.3.5 Siphon algorithm.................................................................................................................152
15 PREVENTIVE MAINTENANCE ..................................................................................153
15.1 Cleaning the touch-screen.......................................................................................153
15.2 Calibrating the temperature sensor circuits..............................................................153
15.3 Lubricating the fan...................................................................................................153

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15.4 Lithium-ion coin cell replacement.............................................................................154
16 ALARMS, INTERLOCKS AND TROUBLESHOOTING ..............................................155
16.1 Alarms and interlocks..............................................................................................155
16.1.1 Alarm Logs and Alarms History pages ...............................................................................155
16.2 Troubleshooting.......................................................................................................158
16.2.1 Internal faults.......................................................................................................................158
16.2.2 External faults .....................................................................................................................158
16.3 Directory of alarms ..................................................................................................159
17 TECHNICAL SPECIFICATIONS.................................................................................161
17.1 Physical specification ..............................................................................................161
17.2 Electrical power supply............................................................................................161
17.3 Sensor inputs ..........................................................................................................161
17.4 Heater outputs.........................................................................................................162
17.5 PC interfaces...........................................................................................................162
17.6 Electrical isolation....................................................................................................163
17.7 Environmental specifications ...................................................................................163
17.8 Level meter board....................................................................................................163
17.9 Pressure board........................................................................................................164
18 CUSTOMER SUPPORT..............................................................................................165

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PREFACE
Welcome to the Operator’s Handbook for the Oxford Instruments Omicron NanoScience
MercuryiTC cryogenic environment controller. The MercuryiTC is a high performance
laboratory temperature controller, with a number of features specifically intended for use in
cryogenic applications.
Use of this manual
This Operator’s Handbook provides all the information necessary for the safe and proper
installation, operation and servicing of the MercuryiTC cryogenic environment controller..
Chapters 1 to 3 provide essential information that must be read and understood before
operating the MercuryiTC for the first time.
Intended users
Users of the MercuryiTC must have received adequate training on its safe and effective use
before attempting to work with the equipment. Please contact Oxford Instruments Omicron
NanoScience for information on training requirements and training courses that are available.
Training requirements vary from country to country. Users must ensure that training is given in
accordance with all applicable local laws and regulations.
If any user of the equipment has not been directly trained by Oxford Instruments Omicron
NanoScience, ensure that they understand the safety issues associated with the equipment,
and that they consult relevant personnel for guidance when operating the equipment.
Statement of intended use of the MercuryiTC
The MercuryiTC has been designed for environmental control in a laboratory environment. The
equipment has been designed to operate within the process parameter limits that are outlined in
this manual.
The MercuryiTC is intended to be installed, used and operated only for the purpose for which
the MercuryiTC was designed, and only in accordance with the instructions given in this
manual and other accompanying documents. Nothing stated in this manual reduces the
responsibilities of users to exercise sound judgement and best practice.
It is the user's responsibility to ensure the system is operated in a safe manner. Consideration
must be made for all aspects of the system's life-cycle including, handling, installation, normal

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operation, maintenance, dismantling, decontamination and disposal. It is the user's
responsibility to complete suitable risk assessments, to determine the magnitude of hazards.
The installation, use and operation of the MercuryiTC are subject to laws in the jurisdictions in
which the equipment is installed and in use. Users must install, use and operate the equipment
only in such ways that do not conflict with said applicable laws and regulations.
If the equipment is not installed, used, maintained, refurbished, modified and upgraded as
specified by the manufacturer, then the protection it provides could be impaired. 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 Omicron NanoScience, as well as incorrect use or operation of the equipment, may
relieve Oxford Instruments Omicron NanoScience or its agent of the responsibility for any
resultant non-compliance, damage or injury. The system must only be used with all external
panels fitted.
Revision history
This is issue 03 of the MercuryiTC Handbook, as shown in the header at the top of each page.
The changes made to this document and a summary of previous issues are listed in the table
below. Always use the latest issue of the manual.
Revision Affected page(s) Summary of changes
01 All pages First edition of the
Mercury
iTC Operator’s Handbook
02 All pages Changes to several GUI pages
03 All pages Complete update of the
Mercury
iTC Operator’s
Handbook, describing version 2.0 of MercuryiTC software.
04 All pages
Minor edits – Generic Calibration, GPIB, customer support
addresses, to update to 2.2.x of MercuryiTC software
(Cryosys).
05 All pages Changes required for regulatory compliance updates

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Customer support
Oxford Instruments Omicron NanoScience has global customer support facilities that provide a
coordinated response to customer’s queries. All queries are recorded on our support database
and are dealt with as quickly as possible. If we are not able to answer the query immediately,
we will contact you promptly.
Before contacting a customer support facility, please
•ensure that you have referred to the appropriate section of this manual.
•check the Mercury website at www.mymercurysupport.com. You will first need to request an
account at www.mymercurysupport.com/user/register. You will need to know the serial
number or sales order number of your iTC.
If you are still unable to resolve the problem, please direct all queries through your nearest
support facility (given on the last page of this manual) and have the following details available:
Product name
Mercury
iTC
Serial number A 9 character alphanumeric code starting with “TC located on the
iTC rear panel.
Application
Firmware
version number
From the home screen tap “Settings”. On the “General” tab page, in
the bottom-left corner, is a number of the form x.x.x(.x) e.g. 1.4.43 or
2.2.6.8. This is the Application firmware version number.
Device Firmware
version number
From the home screen tap “Settings”. Scroll across to the “Devices”
tab. This page is a list of installed devices. The right-hand column
contains the firmware version numbers of the form x.xx e.g. 2.3.
This is the Device (e.g. temperature board) firmware version
number.
Contact information Your name, the name of your company or institution, and how we
can contact you.
Problem A description of the problem, with as much detail as possible,
including any Alarms log entries.

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Health and safety information
The MercuryiTC contains hazardous areas. Before working with the iTC, all personnel must
read and become thoroughly familiar with the information given in chapter 1. In particular, users
must read, understand and strictly observe all:
•Warning notices
•Caution notices
•Safety labels and markings on the equipment
For ease of reference and rapid response in an emergency, this handbook must be safely kept
near the MercuryiTC.

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Disclaimers
Oxford Instruments Omicron NanoScience assumes no liability for use of this document if any
unauthorised changes to the content or format have been made.
The policy of Oxford Instruments Omicron NanoScience is one of continued improvement. The
Company reserves the right to alter without notice the specification, design or conditions of
supply of any of its products or services. Although every effort has been made to ensure that
the information in this manual is accurate and up to date, errors may occur. Oxford Instruments
Omicron NanoScience shall have no liability arising from the use of or reliance by any party on
the contents of this manual and, to the fullest extent permitted by law, excludes all liability for
loss or damages howsoever caused.
This manual is provided without warranty of any kind, either implied or expressed, including, but
not limited to, the implied warranties of merchantability and fitness for a particular purpose.
Copyright notice
You may make hard copies of this manual for your organisation’s internal use in connection with
the system with which it was supplied, provided that the integrity of the manual is maintained
and this copyright notice is reproduced. Other than as permitted above, you may not reproduce
or transmit any part of this document, electronically or mechanically, without the prior written
permission of Oxford Instruments Omicron NanoScience.
Warranty
The Oxford Instruments customer support warranty is available to all our customers during the
first 12 months of ownership from date of delivery. This warranty provides repair to faults that
are a result of manufacturing defects at Oxford Instruments Omicron NanoScience.
Acknowledgements
All trade names and trademarks that appear in this manual are hereby acknowledged.

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Acronyms
The following is a list of acronyms used in this manual.
ADC Analogue to Digital Converter
ASCII American Standard Code for Information Interchange
CJC Cold Junction Compensation
DAC Digital to Analogue Converter
DCE Data Circuit-terminating Equipment
DHCP Dynamic Host Configuration Protocol
DTE Data Terminal Equipment
DVM Digital Volt Meter
EMC Electromagnetic Compatibility
EPROM Electrically Programmable Read-Only Memory
ESSD ElectroStatic Sensitive Devices
EOS End of String
GPIB General Purpose Interface Bus (IEEE-488)
GUI Graphical User Interface
I/O Input/output
LCD Liquid Crystal Display
LED Light Emitting Diode
N/A Not Applicable
NTC Negative Temperature Coefficient
PC Personal Computer
PCB Printed Circuit Board
PGA Programmable Gain Amplifier
PTC Positive Temperature Coefficient
PWM Pulse Width Modulation
RT Room Temperature
SCPI Standard Commands for Programmable Instruments (a command protocol)
SPI Serial Peripheral Interface
TBA To be advised
TFT Thin film transistor
UID Unique Identifier
USB Universal Serial Bus
VTI Variable Temperature Insert

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Certification compliance statements
The MercuryiTC cryogenic environment controller has been tested to the following standards
and certifications:
•CE
•IEC61010-1: 2010 3
rd
edition: Safety requirements for electrical equipment for measurement,
control and laboratory use.
•EN61326-1: 2006: Electrical equipment for measurement, control and laboratory use: EMC
requirements.
Conforms to ANSI/UL Std. 61010-1: 2012.
Cert. to CAN/CSA Std. C22.2 No. 61010-1-12
Control Number:
XXXXXX
•
c
ETL
us
which is recognised as equivalent to UL and CSA
•UL
•CSA
•China Restriction of Hazardous Substances
Signed:
Michael Cuthbert
Managing Director
Oxford Instruments Omicron NanoScience Limited

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About Oxford Instruments
Oxford Instruments specialises in the design, manufacture and support of high-technology tools
and systems for industry, research, education, space, energy, defence and healthcare.
We combine core technologies in areas such as low temperature and high magnetic field
environments; X-ray, electron and optical based metrology; nuclear magnetic resonance,
advanced growth, deposition and etching. Our aim is to be the leading provider of tools and
systems for the emerging nanotechnology and bioscience markets.
Oxford Instruments Omicron NanoScience Limited
Oxford Instruments Omicron NanoScience creates high performance environments for low
temperature and high magnetic field applications in physical science research and process
development down to the atomic scale.
The business has a strong capability in advanced cryogenics and applied superconductivity.
Through the application of these technologies we deliver solutions that meet the exacting needs
of scientists working at the forefront of fundamental physics, applied physics, materials science
and next generation device development. With an extensive customer network, a strong
reputation for performance and quality, we value the support we have provided to world leading
research scientists in their pursuit of excellence.
Oxford Instruments Direct
This provides one-stop shopping for cryogenics, magnetic, vacuum and associated laboratory
products as well as hard to find references for low temperature physics, optics, thermometry
and laboratory safety practices. You can also visit on-line at www.oxinstdirect.com. Ordering
parts is easy via phone, fax or email. Online ordering is available in North America.

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1 HEALTH AND SAFETY
This chapter describes all health and safety considerations relating to the Oxford Instruments
Omicron NanoScience MercuryiTC cryogenic environment controller.
The following safety precautions must be observed during the operation, service and repair of
this instrument.
1.1 Warnings
Before you attempt to install or operate this equipment for the first time, please make sure that
you are aware of the precautions that you must take to ensure your own safety.
1.1.1Protective and functional ground
The equipment must be connected to an electrical ground. The ground wire (green/yellow) in
the equipment power cable must be connected to the electrical ground system of the
installation.
Only use extension cords that have a protective ground conductor.
Do not disconnect the protective ground connection inside or outside the equipment.
Do not connect external electrical circuits to the equipment if its protective ground is
disconnected.
There is a ground pillar on the rear panel, identified by a symbol. Connect the grounds of
any external equipment to this pillar.

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1.1.2High voltage hazard
HIGH VOLTAGE
Danger of death or serious injury. Switch off the external AC
electrical supply and disconnect and remove the external supply
cable, before maintaining this equipment or removing any covers.
HAUTE TENSION
Danger de mort ou de blessure grave. Sectionner l'alimentation
électrique C.A. externe puis déconnecter et retirer le cordon
d'alimentation externe avant d'effectuer toute maintenance de cet
équipement ou d'en retirer les capots.
This equipment contains high voltages. Isolate this equipment before removing and covers. To
isolate this equipment, switch off the external AC electrical supply, and disconnect and remove
the external supply cable.
The AC electrical supply is considered to be the disconnect device for the equipment. Do not
restrict access to the AC electrical supply at any time. The AC electrical supply cable must
remain accessible for disconnection of the equipment.
1.1.3Maintenance and adjustment
Only qualified and authorised persons must service or repair this equipment.
Under no circumstances must the user adjust or repair this equipment while the electrical power
supply is connected.
Ensure that the equipment is disconnected from the AC electrical power supply before the
covers are removed or fuses are removed or fitted. It is NOT sufficient to turn off the switch on
the rear panel or the < On/Off > button on the front panel.
The equipment contains capacitors that may remain charged after AC electrical power is
removed. Discharge all capacitors before starting work.
1.1.4Restrictions on use
The equipment is not suitable for use in explosive, flammable or hazardous environments.
The equipment does not provide protection against the ingress of water. The equipment must
be positioned so that it will not be exposed to water ingress.

Operator's Manual
Issue 05 /
Feb 2015 / UMC0071
MercuryiTC
©2014 Oxford Instruments Omicron NanoScience. All rights reserved. Page 11
1.2 Cautions
1.2.1Electrostatic caution
ELECTROSTATIC SENSITIVE EQUIPMENT
This equipment contains electrostatic sensitive devices (ESSD).
Use approved ESSD procedures when installing or maintaining this
product.
ÉQUIPEMENT SENSIBLE AUX DÉCHARGES
ÉLECTROSTATIQUE
Cet équipement contient des dispositifs qui sont sensibles aux
décharges électrostatiques (ESSD). Utiliser des procédures ESSD
homologuées lors de l'installation ou de la maintenance de ce
produit.
1.2.2Cooling caution
Internal components in this equipment are air-cooled. Ensure that the side and rear ventilation
spaces are not obstructed.
EQUIPMENT VENTILATION
If the MercuryiTC is to be rack mounted, to ensure an adequate
airflow around the iTC, it is important that the back of the rack is
open and the rack is not placed less than 30 cm from a back wall.
VENTILATION D’EQUIPMENT
Lorsque le MercuryiTC est monté en rack, s'assurer que le rack
est ouvert à l'arrière et se trouve au minimum à 30 cm du mur afin
de garantir une circulation d'air suffisante.
1.2.3Acoustic noise caution
MULTIPLE UNIT NOISE
If many MercuryiTC units are to be simultaneously operated in a
confined space then background noise may become excessive.
UNITÉ MULTIPLE DE BRUIT
Si de nombreux MercuryiPS unités doivent fonctionner