Isotech Pegasus 4853 Operating Manual

User Maintenance Manual

PEGASUS ADVANCED 4853

Telephone: [phone] Fax: [phone] Email: [e-mail] Website: www.isotech.co.uk

Isothermal Technology Limited, Pine Grove, Southport, Merseyside, PR9 9AG, England

Pegasus (Advanced) 01-10/14

Guarantee

ⓒIsothermal Technology Limited

This instrument has been manufactured to exacting standards and is guaranteed for twelve
months against electrical break-down or mechanical failure caused through defective material or
workmanship, provided the failure is not the result of misuse.

In the event of failure covered by this guarantee, the instrument must be returned, carriage paid,
to the supplier for examination and will be replaced or repaired at our option.

FRAGILE CERAMIC AND/OR GLASS PARTS ARE NOT COVERED BY THIS GUARANTEE
INTERFERENCE WITH OR FAILURE TO PROPERLY MAINTAIN THIS INSTRUMENT MAY
INVALIDATE THIS GUARANTEE

The company is always willing to give technical advice and assistance where appropriate. Equally,
because of the programme of continual development and improvement we reserve the right to
amend or alter characteristics and design without prior notice. This publication is for information
only.

This handbook contains information that has been reproduced with the kind permission of
Eurotherm. Such data is subject to the following notice.

ⓒ2014 Eurotherm Limited

Eurotherm, the Eurotherm logo, Chessell, nanodac, and Itools, are trademarks of Invensys plc, its
subsidiaries and affiliates.

All rights are strictly reserved. No part of this document may be reproduced, modified or
transmitted in any form by any means, neither may it be stored in a retrieval system other than
for the purpose to act as an aid in operating the equipment to which the document relates, without
the prior written permission of Invensys Eurotherm Limited.

Eurotherm Limited pursues a policy of continuous development and product improvement. The
specifications in this document may therefore be changed without notice. The information in this
document is given in good faith, but is intended for guidance only.

Isothermal Technology Limited

Pine Grove, Southport, Merseyside, PR9 9AG, England

Telephone: [phone] / Fax: [phone]

Email: [e-mail] / Website: www.isotech.co.uk

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Contents

1 UNPACKING AND INITIAL INSPECTION ................................................................................. 5

2 BEFORE YOU USE THE EQUIPMENT ......................................................................................... 6

3 SUMMARY OF SYMBOLS .......................................................................................................... 7

4 ELECTRICITY SUPPLY .............................................................................................................. 8

5 THE UNIT MUST BE EARTHED .......................................................................................... 9

6 EMC INFORMATION ........................................................................................................ 10

7 CAUTIONARY NOTE ....................................................................................................... 11

8 SAFETY WARNINGS ....................................................................................................... 12

8.1 DO NOT MODIFY OR DISASSEMBLE .................................................................................................. 12

8.2 BEWARE OF ELECTRICAL CONSIDERATIONS ........................................................................................ 12

8.3 BE CAREFUL WHERE IT IS USED ...................................................................................................... 12

8.4 BE CAREFUL WITH EXTREMES OF TEMPERATURE ................................................................................. 12

8.5 BE CAREFUL WITH INSERTS ........................................................................................................... 12

9 CONSIDER THE ENVIRONMENT ............................................................................................ 13

10 INTRODUCTION ................................................................................................................... 14

10.1 COMPARISON CALIBRATION .......................................................................................................... 14

10.2 BASIC OPERATION ...................................................................................................................... 14

10.3 SITE OR SELF-CONTAINED CALIBRATORS ......................................................................................... 14

10.4 EXTERNAL STANDARDS + BASIC .................................................................................................... 15

10.5 ADVANCED CALIBRATORS .......................................................................................................... 15

11 MODE OF OPERATION ......................................................................................................... 16

11.1 METAL BLOCK BATH ................................................................................................................... 16

11.1.1 Assembling the Insert ................................................................................................ 16

11.2 BLACKBODY SOURCE ................................................................................................................... 17

11.2.1 Assembling the Insert ................................................................................................ 17

11.3 FAST COOL DOWN PROBE (OPTION) ....................................................................................... 18

12 OPERATION OF THE ADVANCED DRY BLOCK TEMPERATURE CALIBRATOR ....................... 19

12.1 A TOUR OF THE EQUIPMENT ........................................................................................................ 19

12.2 THE USER INTERFACE START UP SCREEN AND CONTROLS ................................................................ 20

12.3 THE ISOTECH HOMEPAGE .......................................................................................................... 20

12.4 THE THERMOSTAT TESTING PAGE ............................................................................................ 20

12.5 THE PROGRAM PAGE (NO ACTIVE PROGRAM) ................................................................................. 21

12.6 THE PROGRAM PAGE (ACTIVE PROGRAM RUNNING) ......................................................................... 21

12.7 THE USER ACCESS PAGE ........................................................................................................... 21

13 GETTING STARTED .............................................................................................................. 22

13.1 CHANGING THE SET POINT ........................................................................................................... 22

14 USING THE ADVANCED FEATURES OF THIS EQUIPMENT ................................................... 23

14.1 TO SET FROM THE FRONT PANEL ................................................................................................... 23

14.1.1 Operator Access .............................................................................................................. 23

14.1.2 Supervisor Access (in addition to the above functions) ....................................................... 23

14.1.3 Engineer Access .............................................................................................................. 23

14.2 HOW TO LOG IN AS THE SUPERVISOR ......................................................................................... 24

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14.3 HOW TO LOG IN AS THE ENGINEER ............................................................................................. 24

14.4 HOW TO CHANGE INPUT SENSOR ON CHANNELS 1, 2 AND 3 ................................................................ 25

14.5 THERMOSTAT TESTING USING THE ADVANCED UNIT .......................................................................... 26

14.6 ENABLING THE AUTOTUNE FEATURE ............................................................................................ 27

14.7 USING THE SETPOINT TRIM FEATURE .......................................................................................... 27

14.8 HOW TO CHANGE THE DATE AND TIME OR THE LANGUAGE OF THE ADVANCED EQUIPMENT .......................... 28

14.9 THERMOMETER INPUT CHANNELS ................................................................................................... 28

14.10 PROCESS TO APPLY A USER CALIBRATION TO THE CONTROLLER USING A PRT CONNECTED TO CHANNEL 1 ....... 29

14.11 THE NETWORK INTERFACE .................................................................................................... 30

14.12 TO ACCESS THE NETWORK INTERFACE ..................................................................................... 30

14.13 THE WEB BROWSER .............................................................................................................. 30

14.13.1 Supported Browsers: ...................................................................................................... 31

14.13.2 The clickable links will allow you to: ................................................................................ 31

14.14 DATA LOGGING ........................................................................................................................ 31

14.15 FTP SERVER ARCHIVING ............................................................................................................ 32

14.16 PROGRAMMER FUNCTION ........................................................................................................... 32

14.17 PROGRAM DETAILS ................................................................................................................... 33

14.17.1 Operation ...................................................................................................................... 33

14.17.2 Status ........................................................................................................................... 33

14.17.3 Program ........................................................................................................................ 33

14.17.4 Holdback Style ............................................................................................................... 33

14.17.5 Program ........................................................................................................................ 33

14.17.6 Ch1 Holdback ................................................................................................................ 34

14.17.7 Ch1 Holdback value ....................................................................................................... 34

14.17.8 Ch2 Holdback ................................................................................................................ 34

14.17.9 Ch2 Holdback value ....................................................................................................... 34

14.17.10 Ramp Style .................................................................................................................. 34

14.17.11 Time ........................................................................................................................... 34

14.17.12 Ch1 Ramp Units ........................................................................................................... 34

14.17.13 Ch2 Ramp Units ........................................................................................................... 34

14.18 HOW TO CREATE A SIMPLE PROGRAM USING THE CONTROLLER INTERFACE ............................................ 35

14.19 TO ENABLE/RUN THIS PROGRAM ............................................................................................... 36

14.20 TO EDIT AN EXISTING PROGRAM ................................................................................................ 36

14.21 USING THE HOLDBACK FEATURE ................................................................................................ 36

15 CONNECTING TEMPERATURE SENSORS.............................................................................. 38

15.1 PLATINUM RESISTANCE THERMOMETERS, PRTS ................................................................................. 38

15.2 INPUT CONNECTIONS .................................................................................................................. 38

15.3 CONNECTING THERMOCOUPLES ...................................................................................................... 38

15.4 CONNECTING 4 – 20MA CURRENT TRANSMITTERS .............................................................................. 39

15.4.1 Using the Current Loop Interface (935-06-161) ................................................................. 39

16 SPECIFICATION ................................................................................................................... 40

17 CONNECTING TO A PC ......................................................................................................... 41

17.1 ISOTECH CONFIG UTILITY ............................................................................................................ 41

17.2 ISOTECH I-CAL EASY ................................................................................................................. 42

17.3 PROGRAM EDITOR ...................................................................................................................... 42

17.4 REVIEW ................................................................................................................................... 43

18 ACCESSORIES ...................................................................................................................... 44

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1 Unpacking And Initial Inspection

Our Packing Department uses custom designed packaging to send out your unit, but as accidents
can still happen in transit, you are advised, after unpacking the unit, to inspect it for any sign of
shipping damage and confirm that your delivery is in accordance with the packing check list. If
you find any damage or that part of the delivery is missing notify us or our agent and the carrier
immediately. If the unit is damaged you should keep the packing for possible insurance
assessment.

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2 Before You Use The Equipment

Please read the handbook and familiarise yourself with all warnings, hazards and safety
information. Regularly inspect the equipment, accessories and electrical leads. Do not use if there
is any sign of damage. Keep the equipment clean, only use a damp cloth. Do not use solvents or
allows liquids to enter the case.

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3 Summary of Symbols

ISO3864 – Caution, read the entire manual before use

IEC 417 – Caution, hot surface (risk of burn)

O

Off l On

Waste Electrical and Electronic Equipment (WEEE directive) symbol
Complies with European regulations (CE mark)

USB symbol

Ethernet RJ45 symbol

Risk of Electrical Shock

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4 Electricity Supply

Before connecting to the electricity supply please familiarise yourself with the parts of the manual
relevant to your model.

Your unit's supply voltage requirement is specified on a label on the instrument along with the
serial number. Only connect to a power supply matching the requirement stated on the equipment.

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5 The Unit Must Be Earthed

Colour

Function

Green/yellow

Earth (Ground)

Brown

Live (line)

Blue

Neutral

This equipment is a Class 1 Appliance and must be earthed (grounded). Use the supplied power
cord and plug it directly into an AC outlet with a protective earth.

If using an alternative cord ensure it is of adequate rating.

If fitting a plug to the cable we have supplied the cable is colour coded as follows:

Do not use the equipment if it is not correctly earthed. If in doubt consult Isothermal Technology
Ltd or a qualified electrician.

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6 EMC Information

This product meets the requirements of the European Directive on Electromagnetic Compatibility
(EMC) 89/336/EEC as amended by EC Directive 92/31/EEC and the European Low Voltage
Directive 73/25/EEC, amended by 93/68/EEC. To ensure emission compliance please ensure that
connecting leads are fully screened.

The product meets the susceptibility requirements of EN 50082-1, criterion B.

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7 Cautionary Note

Operators of this equipment should be adequately trained in the handling of hot and cold items.
It is important the user has been trained about the selection and use of liquids over a wide
temperature range. It is expected that personnel using this equipment will be competent with the
management of apparatus which may be powered or under extremes of temperature and are able
to appreciate the hazards which may be associated with and the precautions to be taken with,
such equipment.

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8 Safety Warnings

8.1 Do Not Modify Or Disassemble

 Do not use the apparatus for jobs other than those for which it was designed, i.e. the

calibration of thermometers

 There are no user serviceable parts inside. Do not dismantle or modify the apparatus. For

repair information contact Isothermal Technology Ltd

 For equipment with fans, the fan should kept free from dust build up; a soft brush or

vacuum cleaner may be used on the external grill

8.2 Beware Of Electrical Considerations

 The equipment is for installation category II (transient voltages) and pollution degree

II in accordance with IEC 664 at altitudes to 2000 metres

 Sensor Input Connection must never exceed 30V with reference to ground
 Thermostat test inputs should be voltage free: isolate from any voltage source during test

8.3 Be Careful Where It Is Used

 The equipment is not for use in hazardous areas or in an environment close to flammable

materials or gases

 The equipment must be used on a flat level surface, with adequate space around it for air

flow and avoid blocking ventilation slots

 Ensure free space above the unit to avoid risk of burn or fire
 The equipment should only be used indoors
 Site in a way that allows access to the power switch, and to allow the cable to be

disconnected

 Avoid excessive heat, humidity, dust and vibration ensuring it will not be subjected to

dripping or splashing liquids

8.4 Be Careful With Extremes Of Temperature

 In normal use the calibration volume, inserts and probes will become very hot and present

a burn hazard

 Do not remove inserts, probes or handle the equipment when it is hot or cold.
 Allow the equipment and accessories to reach a temperature between ambient and 70°C

before switching off or storing the equipment in its case

 Do not use the equipment outside its recommended temperature range
 Operating the equipment at extremes of temperature for extended periods may call for

early replacement of the heating assembly

 Wear appropriate protective clothing

8.5 Be Careful With Inserts

 Only use inserts supplied with, or ordered specifically for, this model
 Do not handle inserts while they are very hot or cold
 Inserts for low temperature models may melt and cause a fire if used in high temperature

models

 Only use Isotech inserts which are specially treated to avoid them from becoming stuck in

the calibration volume

 Do not use powders, liquids or compounds in the insert; this may lead to the insert or

probes becoming stuck

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9 Consider The Environment

The equipment should be recycled or disposed of in a proper way; following the Waste
Electrical and Electronic Equipment (WEEE) directive

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10 Introduction

The purpose of the Pegasus models is to provide an adjustable isothermal enclosure for
calibration purposes. It has been designed to be rugged and easily maintained.

The isothermal enclosure consists of a small furnace into which an insert can be placed. Items
for calibration are placed in suitably drilled holes in the insert. The replaceable inserts enable a
variety of items to be calibrated.

The furnace consists of a specially wound tube assembly. A control sensor is used by the
temperature controller to sense the furnace temperature.

An internal fan runs continuously and cools the electronics in the instrument.

Note: the units’ on/off switch is located on the power inlet. Take care NOT to switch
the unit off when it is hot, allow to cool first.

10.1 Comparison Calibration

By definition, one compares industrial thermometers to a calibrated standard. There are three
methods commonly used.

10.2 Basic Operation

Using the controller as the “calibrated standard”. This method means that the

complete bath is calibrated by comparing the controller reading to a calibrated
standard placed in the bath.

This is a common method but is unsafe since the control sensor is

a) inaccessible
b) in the wrong place to give correct temperature of the insert

For these reasons it fails to satisfy ISO9000 and gives large uncertainties.

The Pegasus should always be used with a calibrated sensor alongside the test devices.

10.3 Site or Self-Contained Calibrators

In these an indicator and external calibrated sensor are used to measure
the temperature of the insert. This arrangement gives good results and
traceability. To recalibrate however it does mean sending the whole
calibrator back to the calibration laboratory. The calibrator is self­contained, self-sufficient and meets ISO9000 requirements.

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