
TRUE TEMPERATURE
INDICATOR MODEL TTI-10
User Manual/Handbook
Isothermal Technology Limited, Pine Grove, Southport, PR9 9AG, England
Tel: +44 (0)1704 543830 Fax: +44 (0)1704 544799 Internet: www.isotech.co.uk E-mail: info@isotech.co.uk
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
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TTI-10 (05-12/16)

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 life of your ISOTECH Instrument will be prolonged if regular maintenance and cleaning to remove general dust
and debris is carried out.
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.
Isothermal Technology Limited
Pine Grove, Southport, Merseyside, PR9 9AG, England
Telephone: +44 (0)1704 543830/544611 / Fax: +44 (0)1704 544799
Email: info@isotech.co.uk / Website: www.isotech.co.uk
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TTI-10 (05-12/16)

CONTENTS
CAUTIONARY NOTE ........................................................................................................................................................................ 4
HANDLING ........................................................................................................................................................................................ 5
General advice................................................................................................................................................................................. 5
To Operate From a Battery ............................................................................................................................................................ 5
Operation ........................................................................................................................................................................................ 5
Switching On and Off ...................................................................................................................................................................... 5
Menu ............................................................................................................................................................................................... 5
Menu structure............................................................................................................................................................................. 6
Selecting Display Units °C, °F and Ohms ..................................................................................................................................... 6
Temperature Difference Mode/ [Line2] ...................................................................................................................................... 6
Calibration Function / [CAL] ........................................................................................................................................................ 6
To Change Calibration Mode ....................................................................................................................................................... 7
Channel Activation / [Chnl] .......................................................................................................................................................... 9
Memory Setup/Lo6 ...................................................................................................................................................................... 9
Recalling the memory data (HOLD MAX MIN AVE) ................................................................................................................... 10
Clearing the memory (MAX MIN AVE) ..................................................................................................................................... 10
Measuring rate (Normal-Mode/FAST-mode/Filter-Mode) ........................................................................................................... 10
AUTO-OFF-function .................................................................................................................................................................... 10
TARE-Function (ZERO-Mode F1) ................................................................................................................................................ 11
Power supply ............................................................................................................................................................................. 11
Error Codes ............................................................................................................................................................................... 11
Use with Cal Notepad ............................................................................................................................................................... 11
PRT Connections ....................................................................................................................................................................... 12
Specifications .............................................................................................................................................................................. 12
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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.
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TTI-10 (05-12/16)