Isotech Oceanus 6 Operating Manual

OCEANUS-6 SERIES

MODEL 580

OCEANUS-6 SERIES

HANDBOOK

ISSUE 5 - 01/05

This manual is issued under the authority of

Mr. J.P. Tavener, Managing Director

Isotech North America
158 Brentwood Drive, Unit 4
Colchester, VT 05446

Phone: [phone]
Fax: [phone]

www.isotechna.com

[e-mail]

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.

Page 1 of 43

OCEANUS-6 SERIES

HANDBOOK

ISSUE 5 - 01/05

CONTENTS

PAGE DESCRIPTION

3 - 4 EMC Information
5 Health & Safety Instructions
6 Do’s and Don’ts
7 Guarantee
8 Cautionary Note
9 Unpacking & Initial Inspection
10 - 12 Introduction
13 - 15 Mode of Operation
16 Adjusting the Timer
17 - 18 Using Water & Gallium Fixed Point Cells
19 - 20 Thermometric Fixed Points (a tutorial note)
21 How to measure the true temperature inside the accessories

supplied with the Isocal-6
22 Specification
23 Performance Graph
24 - 25 Operation
26 - 28 Altering the Ramp Rate
29 Determining the Calibration Data
30 - 31 Connecting a current transmitter (up to 20mA)

Testing Thermostats
32 Using the PC Interface
33 - 34 Using the Cal Notepad
35 Diagnostics
36 Initial Testing
37 Maintenance
38 Figure 1
39 Appendix 1 - Trouble Shooting
40 - 41 Appendix 2 - Indicator Configuration
42 - 43 Appendix 3 - Accessories

Page 2 of 43

OCEANUS-6 SERIES

HANDBOOK

ISSUE 5 - 01/05

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 any serial communications connecting leads (RS232 or RS422(485)) are
fully screened.

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

Symbol Identification Publication Description

ISO3864 Caution

(Refer to Handbook)

IEC 417 Caution, Hot Surface

ELECTRICAL SAFETY

This equipment must be correctly earthed.

This equipment is a Class 1 Appliance. A protective earth is used to ensure the conductive
parts can not become live in the event of a failure of the insulation.

The protective conductor of the flexible mains cable which is coloured green/yellow MUST be
connected to a suitable earth.

The blue conductor should be connected to Neutral and the Brown conductor to Live (Line).

Page 3 of 43

OCEANUS-6 SERIES

HANDBOOK

ISSUE 5 - 01/05

Warning: Internal mains voltage hazard. Do not remove the panels.

There are no user serviceable parts inside. Contact your nearest Isotech agent for repair.

Voltage transients on the supply must not exceed 2.5kV.

Conductive pollution, eg. Carbon dust, must be excluded from the apparatus. EN61010
pollution degree 2.

The apparatus has two input connectors for temperature sensors, see Figure 1. These inputs
are only suitable for either a thermocouple or resistance thermometer. No other sensor or
signal may be connected.

ENVIRONMENTAL RATINGS

Operating Temperature 5-50/C

Relative Humidity 5-95%, non condensing

Page 4 of 43

OCEANUS-6 SERIES

HANDBOOK

ISSUE 5 - 01/05

HEALTH AND SAFETY INSTRUCTIONS

1. Read all of this handbook before use.

2. Wear appropriate protective clothing.

3. Operators of this equipment should be adequately trained in the handling of hot and

cold items and liquids.

4. Do not use the apparatus for jobs other than those for which it was designed, ie. the

calibration of thermometers.

5. Do not handle the apparatus when it is hot (or cold), unless wearing the appropriate

protective clothing and having the necessary training.

6. Do not drill, modify or otherwise change the shape of the apparatus.

7. Do not dismantle the apparatus.

8. Do not use the apparatus outside its recommended temperature range.

9. If cased, do not return the apparatus to its carrying case until the unit has cooled.

10. There are no user serviceable parts inside. Contact your nearest Isotech agent for

repair.

11. Ensure materials, especially flammable materials are kept away from hot parts of the

apparatus, to prevent fire risk.

Page 5 of 43

OCEANUS-6 SERIES

HANDBOOK

ISSUE 5 - 01/05

OCEANUS-6 MODEL 580

‘DO’S AND DON’TS’

DO NOT handle the accessories when they are very hot or very cold.

DO NOT place hot or cold accessories back in the carrying case

DO NOT use the pocket designed for the black body source sensor to measure the temperature

of the insert, stirred liquid bath or surface calibrator.

DO use that pocket for pre-warming, pre-cooling or storage.

DO NOT spill liquids inside the Oceanus-6

DO NOT use liquids outside their recommended temperature range

DO NOT use viscous liquids in the stirred liquid accessory, the stirring will be restricted and

larger gradients will occur.

DO NOT mix liquids. If you are using 1 container for different liquids make sure the container
is completely clean and dry before adding another liquid.

DO NOT worry if the black anodising gets discoloured or scratched. We can supply some
special black touch up paint.

DO NOT rely on the controller to tell you the temperature of the insert or stirred liquid bath. It’s
job is only to provide an isothermal volume. It is the calibrated working standard that is used
to measure actual temperature.

DO NOT calibrate very large sensors in the Oceanus-6 unless you can accept large immersion
errors. We have larger products for larger sensors.

DO NOT try to straighten the working standard, it is deliberately bent so that it does not
interfere with the sensors you are calibrating.

Page 6 of 43

OCEANUS-6 SERIES

HANDBOOK

ISSUE 5 - 01/05

GUARANTEE

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

RECOMMENDATION

The life of your ISOTECH Instrument will be prolonged if regular maintenance and cleaning

to remove general dust and debris is carried out.

Serial No:.............................................

Date:.....................................................

Isotech North America
158 Brentwood Drive, Unit 4
Colchester, VT 05446

Phone: [phone]
Fax: [phone]

[e-mail]

www.isotechna.com

Page 7 of 43

OCEANUS-6 SERIES

CAUTIONARY NOTE

ISOTECH PRODUCTS ARE INTENDED FOR USE BY
TECHNICALLY TRAINED AND COMPETENT PERSONNEL
FAMILIAR WITH GOOD MEASUREMENT PRACTICES.

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.

HANDBOOK

ISSUE 5 - 01/05

Page 8 of 43

OCEANUS-6 SERIES

HANDBOOK

ISSUE 5 - 01/05

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
note. 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.

ELECTRICITY SUPPLY

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

Your unit's supply voltage requirement is specified on a plate on the instrument along with the
serial number. All Oceanus-6 instruments will work on an electricity supply frequency of 50Hz
or 60Hz.

The apparatus is provided with an approved power cord. If the plug is not suitable for your
location then the plug should be removed and replaced with an appropriate plug.

Take care to ensure the old plug is disposed safely.

The cable is colour coded as follows:

COLOUR FUNCTION

Green/yellow Earth (Ground)
Brown Live (line)
Blue Neutral

Please ensure that your unit is correctly connected to the electricity supply.

THE APPARATUS MUST BE CORRECTLY EARTHED (GROUNDED)

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.

Page 9 of 43

OCEANUS-6 SERIES

HANDBOOK

ISSUE 5 - 01/05

INTRODUCTION

The Oceanus-6 range of products allows unprecedented flexibility for the calibration of
temperature sensors. The Oceanus-6 range may be used with the following options:

1. An ITS-90 Fixed Point Apparatus

2. As a Metal Block Bath

3. As a Stirred Liquid Bath

4. As a Stirred Ice Bath

5. A Black Body Source

6. A Surface Sensor Calibrator

The Oceanus-6 is available in two variants. The Basic (B) model which incorporates a single
temperature controller. The Potts as Site (S) model also include a temperature indicator and
a timer.

COMPARISON CALIBRATION:

By definition, one compares industrial thermometers to a calibrated standard.

There are 3 methods commonly used.

1) USING THE CONTROLLER

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.

Page 10 of 43

OCEANUS-6 SERIES

HANDBOOK

ISSUE 5 - 01/05

2) USING THE INDICATOR - (Not Basic (B) Model)

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

Page 11 of 43

OCEANUS-6 SERIES

HANDBOOK

ISSUE 5 - 01/05

3) USING EXTERNAL STANDARDS

Here a separate indicator and calibrated sensor are used to measure the inserts temperature.
This can give the most accurate and reliable results, depending on the indicator.

It means that the calibrator does not need calibrating only the indicator and it’s calibrated
sensor need re-calibration, but this option is more bulky, expensive and less portable than 2)
above. It also meets ISO9000 requirements.

Page 12 of 43

OCEANUS-6 SERIES

HANDBOOK

ISSUE 5 - 01/05

MODE OF OPERATION

1) ITS-90 FIXED POINT CALIBRATION

The ITS-90 fixed point function of the Oceanus-6 is well suited for fast, convenient, mess free
calibration of thermometers to uncertainties as low at 0.001/C.

The special cell is placed into the Oceanus-6 calibration well. The stir speed control should be
set to the OFF position.

The equipment incorporates a timer which can change temperatures to allow MELTING or
FREEZING of a Gallium Cell. Once initiated the Cell can be arranged to be on the melt plateau
during the day and automatically frozen and bought back to the melt plateau overnight.

For use with a Gallium Cell the well temperature should be 30.5/C for the MELT or 15/C for the
FREEZE.

On power up the timer is set to run at setpoint 1 for 20 hours at setpoint 2 for 4 hours.

2) METAL BLOCK BATH

The metal block bath function of the Oceanus-6 is well suited for fast, convenient, mess free
calibration of temperature sensors.

The Oceanus-6 metal insert is placed into the calibration well. The stir speed control should
be set to the OFF position (turn fully anti-clockwise).

The thermometers under test are placed into suitable holes in metal insert (part number 580-06-

03), see accessory section page 40. A calibrated reference probe should be placed into the
insert and the actual temperature can be read from the temperature indicator.

For traceable calibration the actual value of the insert temperature should be recorded along
with the values from the sensors under test.

Page 13 of 43