2

THERMOCOUPLE & RESISTANCE

THERMOMETER SENSORS & PROBES

CONTENTS

Thermocouples for specific Applications including

Mineral Insulated, Flexible Sheath Platinum

Fabricated, Rigid Sheath Platinum Resistance

Platinum Resistance Thermometers for

Platinum Resistance Thermometer

Choosing the sensor type:

Thermocouples

are less expensive than PRT sensors,

more versatile, less accurate, more rugged, more sensitive,

have a wider operating range, are tip sensitive and can

be smaller. Extension cabling is more expensive. Various

calibrations are available for different applications.

PRT assemblies

are much more accurate and stable,

permit greater resolution of measurement but over a more

limited range, are stem sensitive, larger and more

expensive. Extension cabling is inexpensive copper wire.

Remember the type of sensor chosen must suit the

associated instrumentation.

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Thermocouple & platinum resistance thermometers in a

wide range of configurations & dimensions

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Ranges from -200°C to 1700°C

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Mineral insulated, flexible and fabricated, rigid probes

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Fine wire thermocouples

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Hand held probes

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Plastics, surface & air sensors

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Furnace thermocouples

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Calibrated sensors

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General purpose and application specific designs

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Installation fittings

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Head mounting temperature transmitters

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Pt100 & Pt1000 detectors

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ISO 9001 registered

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Full compliance with IEC specifications

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Thermocouple calibration types J,K,T,N,E,R & S

available

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COLOUR CODES

THERMOCOUPLE CONNECTORS, EXTENSION

AND COMPENSATING WIRES AND CABLES

INSULATION COLOUR CODES

Extension & Compensating Leads

CABLE

CODE

NICKEL CHROMIUM/CONSTANTAN

EX

E

(Nickel Chromium/Copper Nickel,

Chromel/Constantan, T1/Advance,

NiCr/Constantan)

J

IRON*/CONSTANTAN

JX

(Iron/Copper Nickel, Fe/Konst

Iron/Advance, Fe/Constantan I/C)

K

NICKEL CHROMIUM/NICKEL

KX

ALUMINIUM*

(NC/NA, Chromel/Alumel, C/A,

T1/T2, NiCr/Ni, NiCr/NiAL)

NX

NC

T

COPPER/CONSTANTAN

TX

(Copper/Copper Nickel,

Cu/Con, Copper/Advance)

Vx

COPPER/CONSTANTAN

KCB

(LOW NICKEL)

(Cu/Constantan) Compensating

for K (Cu/Constantan)

U

COPPER/COPPER NICKEL

RCA

Compensating for Platinum 10% or

13% Rhodium/Platinum (Codes S &

R respectively) (Copper/Cupronic

SCA

Cu/CuNi, Copper/No. 11 Alloy)

* Magnetic, ( )

Alternative & Trade Name

FOR

THERMOCOUPLE

CONNECTORS

body colours are

similar to outer

sheath colours

FOR

THERMOCOUPLE

CONNECTORS

body colours are

similar to outer

sheath colours

IEC584-3: 1989

BS4937. Part 30. 1993

The British Standard Colour Code for Thermocouple Cables, BS1843:

1952 is superseded by BS4937 PART 30 1993 (=IEC 584-3 1989)

Additional identification as to whether a thermocouple cable type is

extension or compensating is indicated in the example which follows;

however, please note that a letter A or B after the C for Compensating

refers to the Cable Temperature Range in accordance with the table of

Tolerance Values set out with this standard.

K – X

– 1

=

K EXTENSION CLASS 1

K – CA – 2

=

K COMPENSATION CLASS 2

www.labfacility.co.uk

Type

J

Type

K

Ty

pe

T

Type

N

Type

E

Ty

pe

R

Ty

pe

S

All technical information published in this brochure is for guidance and not necessarily

definitive. All thermocouple items comply with IEC 584 colour codes, cable and

thermoelement tolerances unless otherwise stated. All platinum resistance thermometer

items comply with IEC 751 tolerance and termination colour codes. All dimensions stated

are nominal. Product availability & specifications may be subject to change. E & OE

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FORMER STANDARD

TYPE

CONDUCTORS +/-

BRITISH

AMERICAN

GERMAN

BS1843: 1952

ANSI/MC 96.1

DIN 43713 / 43714