Transmille EA001A User Manual

EA001A

Thermocouple Simulation

& Measurement Adapter

Operation Manual

Version 1.00
May 2013
All product names are trademarks of their respective companies

EA001A THERMOCOUPLE SIMULATION & MEASUREMENT ADAPTER
OPERATION MANUAL

Guarantee and service

Transmille Ltd. guarantees this instrument to be free from defects under normal use
and service for a period of 1 years from purchase. This guarantee applies only to
the original purchaser and does not cover fuses, or any instrument which, in
Transmille’s opinion, has been modified, misused or subjected to abnormal
handling or operating conditions.

Transmille’s obligation under this guarantee is limited to replacement or repair of an
instrument which is returned to Transmille within the warranty period. If Transmille
determines that the fault has been caused by the purchaser, Transmille will contact
the purchaser before proceeding with any repair.

To obtain repair under this guarantee the purchaser must send the instrument in its
original packaging (carriage prepaid) and a description of the fault to Transmille at
the address shown below. The instrument will be repaired at the factory and
returned to the purchaser, carriage prepaid.

Note :
TRANSMILLE ASSUMES NO RESPONSIBILITY FOR DAMAGE IN TRANSIT

THIS GUARANTEE IS THE PURCHASER’S SOLE AND EXCLUSIVE GUARANTEE
AND IS IN LEIU OF ANY OTHER GUARANTEE, EXPRESSED OR IMPLIED.
TRANSMILLE SHALL NOT BE LIABLE FOR ANY INCIDENTAL, INDIRECT, SPECIAL
OR CONSEQUENTIAL DAMAGES OR LOSS.

Transmille Ltd.
Unit 4, Select Business Centre
Lodge Road
Staplehurst
Kent
TN12 0QW
United Kingdom

Tel : [phone]
Fax : [phone]

EMail : [e-mail]
Web : www.transmille.com

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EA001A THERMOCOUPLE SIMULATION & MEASUREMENT ADAPTER
OPERATION MANUAL

TABLE OF CONTENTS

EA001A THERMOCOUPLE SIMULATION & MEASUREMENT ADAPTER.......................................4

MAIN FEATURES..................................................................................................................................5

DEDICATED EXTERNAL ADAPTER FOR THE ULTIMATE IN ACCURACY.......................................................5

DIRECT CONNECTION - NO COMPENSATION CABLES REQUIRED...............................................................5

DESIGN NOTES.....................................................................................................................................6

INTUITIVE OPERATION & CONTROL........................................................................................................6

CONNECTIONS.....................................................................................................................................7

Simulation Function Connection ...............................................................................................7

Measurement Function Connection...........................................................................................7

USING THE THERMOCOUPLE SIMULATION FUNCTION.................................................................8

CONNECTING THE UUT.........................................................................................................................8

USING THE MENUS ................................................................................................................................9

SETTING TEMPERATURE OUTPUTS ......................................................................................................10

Manual Keypad Entry ................................................................................................................10

Deviate Output ...........................................................................................................................10

USING THE THERMOCOUPLE MEASUREMENT FUNCTION.........................................................11

CONNECTING THE UUT.......................................................................................................................11

USING THE MENUS ..............................................................................................................................12

COLD JUNCTION COMPENSATION .................................................................................................14

OVERVIEW .........................................................................................................................................14

AUTOMATIC COLD JUNCTION COMPENSATION .....................................................................................15

MANUAL COLD JUNCTION COMPENSATION ..........................................................................................15

AUTOMATED CALIBRATION USING PROCAL................................................................................16

CARE & MAINTENANCE....................................................................................................................17

CLEANING THE ADAPTER ....................................................................................................................17

HANDLING PRECAUTIONS....................................................................................................................17

SERVICING INFORMATION....................................................................................................................17

Appendix A : Specifications

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EA001A THERMOCOUPLE SIMULATION & MEASUREMENT ADAPTER
OPERATION MANUAL

EA001A Thermocouple Simulation & Measurement Adapter

• External Unit

• Low noise & Thermally stable

• Simulation and measurement capabilities

• Dual Integrated temperature sensors for accurate cold junction compensation

• 11 thermocouple types : Type B

Type C
Type E
Type J
Type K
Type L
Type N
Type R
Type S
Type T
Type U

• Direct control from the 3000A Series front panel

• Compatible with ProCal calibration software

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EA001A THERMOCOUPLE SIMULATION & MEASUREMENT ADAPTER

p

OPERATION MANUAL

Main Features

Dedicated External Adapter For the Ultimate in Accuracy

Temperature gradients / thermal EMFs which can be introduced by internally mounted
thermocouple simulation methods are one of the greatest sources of error with
thermocouple temperature calibration.

For the ultimate in accuracy, Transmille has designed a dedicated external adapter. This
keeps the electronics required to generate the low level signals used for thermocouple
simulation as close as possible to the measuring input of the thermometer. This allows the
signal to be as free from electrical noise as possible, and also eliminates errors caused by
heat generated by surrounding electronics in the calibrator.

Direct Connection - No compensation cables required

• Uses neutral (copper) thermocouple connectors

• CJC sensor built in to thermocouple

plug for automatic cold junction

ensation

com

• CJC sensor
built in to
thermocouple
input socket for
automatic cold
junction
compensation

For direct connection to any thermocouple type input without the need for compensation
cables

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EA001A THERMOCOUPLE SIMULATION & MEASUREMENT ADAPTER
OPERATION MANUAL

Design Notes

Special care has been taken over the cold junction compensation - a common source of
errors in thermocouple calibration. The cold function compensation (CJC) sensor is
mounted in the thermocouple plug itself. By measuring the cold junction at the instruments
input allows any type of thermocouple to be simulated without using compensation cables.

Intuitive Operation & Control

• Easy selection of thermocouple type

• Auto / Manual Cold Junction compensation

Quick and easy to use, simply plug in the
temperature adapter into the 3000 Series
calibrator, select thermocouple simulation mode
and thermocouple type using the soft keys and enter
the temperature required.

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