01.01

Are basic structures for all subsequent thermocouple modifications. Versions with terminal heads 005 and 006  are used as replaceable temperature elements in block-modular modifications of 01.07, 01.20, 01.21, 01.23, 01.24 sensors, and 01.06, 01.08, 01.16 sensors respectively.
These sensors are designed for temperature measurement in liquid and gaseous non-corrosive media, and also corrosive media that do not damage protective cover material.
Temperature sensor can be bent to locate hot junction in required measurement area. Bend radius is not less than five times of cable diameter.
01.01 modification is also executed as 000 version. It is necessary to take care during connection due to possible thermocouple wire damage. 01.02 or 02.01 modification s recommended as an operating sensor. List of possible terminal head designs is given in "Alternative designs & Ordering information" table below.
Movable fittings UNKJ 031 (see section 10) designed for 1.0 MPa rated pressure are used for sensor installation at site. For application area extension CTxx 01.02 thermocouples can be manufactured with welded (soldered) mounting elements in compliance with the Customer's drawings.

Technical characteristics

Hot junction

one

Ungrounded or
Grounded

two

Vibration resistance GOST R 52931

group V3

01.01

group F3

01.02

Nominal (rated) pressure

0,1MPa without mounting elements

up to 150MPa depending on mounting elements

Seismic resistance MSK-64

grade 9 for unit installation up to 70 m above zero mark

Climatic category GOST 15150

UHL2

Ambient temperature: -60..+120ºС

Calibration

MI 3090-2007 - for sensor fitting length 20 to 250 mm
GOST 8.338-2013 - for sensor fitting length larger than 250 mm
MP RT 2026-2013 – for sensors with installed measuring transmitters

Instrument drift at calibration interval (CI)


Temperature sensor type

Group of operating conditions

Drift at CI, °С, not more

CTK;   CTN

I;  II

± (1 or 0,004 · |t|)

III

± (1,5 or 0,006 · |t|)

IV

CTL

I

± (1 or 0,004 · |t|)

II

± (1,5 or 0,006 · |t|)

CTJ

II

± (1 or 0,004 · |t|)

CTM

II;  III

± (1 or 0,004 · |t|)

Reliability indicators

Group of operating conditions

Probability of
failure-free operation

Specified lifetime

Mean
lifetime

Guarantee
period

I

0.95 for 40 000 hours

5 years

10 years

5 years

II

0.95 for 16 000 hours

2 years

4 years

2 years

III

0.95 for 8 000 hours

1 year

2 years

1 year

IV

Not rated

Not rated

Not rated

Not rated

Error limits

Measurement accuracy of sensors with 4-20 mА DC signal and/or digital signal via HART protocol are given taking into account accuracies of thermocouple itself, transmitter and transmitter's cold junction compensation.


Output signal

Symbol

Measurement accuracy

Output
signal

Symbol

Measurement accuracy

4-20mА

c0Т40

±0,4% ∙tn* or ±1,5°С

4-20mА+HART

c1N25

±0,25%∙ tn or ±0,9°С;

c1Т50

±0,5%∙ tn or ±2,0°С

c0N40

±0,4%∙ tn or ±1,2°С;

c2Т80

±0,8%∙ tn or ±2,5°С;

c1N50

±0,5%∙ tn or ±1,7°С;

 

 

c2N80

±0,8%∙ tn or ±2,5°С;

* - tn sensor adjustment range should be multiplied by specified value in %. Select higher value.

Temperature range

Response time τ 0,63:


Hot junction

Sensor response time depending on diameter, c

d = 0,5

d = 1,0

d = 1,5; 2

d = 3,0

d = 4,0

d = 4,5;  4,6

d = 5,0

d = 6,0

Insulated from sheath

0.05

0.15

0.4

1.0

1.5

2.0

3.0

4.0

Uninsulated from sheath

0.03

0.05

0.15

0.5

1.0

1.0

1.5

2.0

Temperature range


CT type

Application
temperature, ºС

Group of
operating
conditions

Calibration
interval

Cable selection

Sheath
diameter

Sheath material

CTK

– 40 .. + 600

I

5 years

3;  4;  4.5;  6

S321; S316; T310; Т446; T600

– 200 ..+ 600

II

2 years

1.5;  2; 

S321;  S316;  T310;  T600

– 200 ..+ 800

3;  4;  4.5;  6

S321

– 200..+ 900

3;  4;  4.5;  6

S316;  T310;  T600

– 200 ..+ 800

III

1 year

1.5;  2;

S321

– 200..+ 900

1.5;  2;

S316;  T310;  T600

– 200..+ 1000

3

T310;  Т446;  T600

– 200..+ 1100

4.5;  6;

T310;  Т446;  T600

– 40 .. + 700

IV

Not rated

0.5

T310;  T600

1

S321;  T310;  T600

– 40..+ 1300

4.5;  6;

T600

CTN

– 40 ..+ 800

I

5 years

3;  4.5;

Т310; Т600; Т740

– 200 ..+ 600

II

2 years

1.5;  2;

S321, S316

– 200 ..+ 800

1.5;  2;

Т310; Т600; Т740

– 200 ..+ 1000

3

T310;  T600

– 200 ..+ 1100

4.5

T310;  T600

3;  4.5;

Т740

– 200 ..+ 800

III

1 year

1.5;  2;

S321, S316

– 200..+ 900

1.5

Т740, Т310; T600

– 200 ..+ 1000

2

Т740, Т310; T600

– 200 ..+ 1100

3

Т740, Т600, Т310

– 200 ..+ 1200

4.5

Т740

– 40 ..+ 800

IV

Not rated

1

Т600; Т740

– 40 ..+ 1300

4.5

Т740

CTL

– 40 ..+ 600

I

5 years

3; 4; 4.6; 5; 6

S10

– 100 . + 800

II

2 years

3; 4; 4.6; 5; 6

S10

– 100 ..+ 600

III

1 year

1.5

S10

– 40 ..+ 600

IV

Not rated

1

S10

CTJ

– 40 ..+ 760

II

2 years

2;  3;  4.5

S321, S316

CTM

– 40 ..+ 200

II

2 years

2;  3;  4.5

S10; S321

– 200 ..+ 370

III

1 year

Execution options

CTK

 

Exi

01.02

0

21

c1

N50

U

2

Т310

D

3

L

 

 

1

 

2

3

 

4

5

 

6

7

 

8

9

 

10

11

 

12

 

13

 

14

 

NN

Parameter name

Code

Description

1

Sensor type

CTK, CTL, CTN, CTJ, CTM

Mineral insulated cable thermocouple with type according to IEC 60584 and ASTM E230

2

Explosion protection

Not filled

general purpose electrical equipment

Exi

0ExiaIICT6 X, intrinsically safe circuit

Exd

1ExdIICT6, explosion-proof enclosure

3

Modification

01.01

Sensing element without mounting elements

01.02

Mineral insulated cable thermocouple without mounting elements

4

Cable gland

0

standard cable gland

Not permitted for 1ExdIICT6

А

for unarmoured cable in metal hose RZCH-15

В

for unarmoured cable in metal hose MRPI-15

C

for unarmoured cable in metal hose DN18

D

for unarmoured cable in metal hose DN20

E

for unarmoured cable in metal hose DN12

F

for pipe assembly, М20х1,5 internal thread

G

for pipe assembly, output external thread G1/2

H

for unarmoured cable, 6.5 - 14 mm diameter

I

for unarmoured cable, 3.2 - 8.7 mm diameter

J

for cable with internal/external sheath diameter: 6,1-11,7/9,5-15,9, single-line wire armoured cable

К

for cable with internal/external sheath diameter: 3,1-8,7/6,1-11,5, all armour types

L

for cable with internal/external sheath diameter: 6,5-14/12,5-20,9, all armour types

5

Sensor terminal
head (see "Alternative designs" table, pages 1-10)

000 (only for 01.01)

Free electrode ends

IP00

general purpose

006 (only for 01.01)

Free electrode ends with fitting

IP00

general purpose

002; 004)

male connector

IP00

general purpose

005

terminal block

IP00

general purpose

10;  13

plastic head

IP55

general purpose

15;  16; 17;  18;  19

aluminium head

IP66/IP68

1ExdIICT6 / 0ExiaIICT6 X

20;  22;

aluminium head

IP65

general purpose

14,  21;  23;  24;  25;  26;  28;  29

aluminium head

IP66

0ExiaIICT6Х or general purpose

27

stainless steel

IP66

0ExiaIICT6Х or general purpose

6

Sensor class

c0;   c1;   c2

For further details see table 5 page 2-9

7

Output signal, transmitter accuracy symbol, see table 5, page 2-10

Not filled

analogous signal (mV) according to NSC

Т40

For terminal heads >14

4-20 mА

for c0

Т50;  Т70

for c1

Т80;  Т100

for c2

H25

4-20 mА +HART

Individual sensor calibration (c1)

H40

for c0

H50

for c1

H80

for c2

8

Thermocouple hot junction design

О

exposed junction,

general purpose

G

grounded junction,

general purpose

U

ungrounded junction,

1ExdIICT6 / 0ExiaIICT6 X / general purpose

9

Number of wire couple

Not filled

1 wire couple

2

2 wire couples (2 junctions)

10

Cable outer sheath material

S10

Steel 12Cr18Ni10Т (only for CTL)

S321, S316

AISI 321, AISI 316

Т310

AISI 310

Т446

AISI 446

Т600

INCONEL 600

Т740

ALLOY 740

11

Cable sheath thickness

Not filled

standard sheath thickness (see table 1 introduction)

D

double sheath thickness (see table 1 introduction)

12

Outer diameter

0.5;  1;

size (mm) on Customer's choice

general purpose

1.5; 2; 3; 4; 4.5; 4.6; 5; 6

1ExdIICT6 / 0ExiaIICT6 X / general purpose

13

Probe length

10÷100 000

probe length L to the working end, mm

14

Additional data (for terminal head 006)

М20/M18

thread М20х1,5 (electrode), М18х1 (working end)

М20/M10

thread М20х1,5 (electrode), М10х1 (working end)

Examples of product designation

CTK 01.02-005 - c2 – U2 – S321 – 4,5 – 500

Product type

CT

cable thermocouple

Type of TC

K

chromel-alumel

Explosion protection

general purpose

Modification

01.02

without mounting elements

Cable gland

0

no

Wring (terminal head code)

05

terminal block, IP00

Tolerance class

c2

second class

Output signal (accuracy class)

analogous

Junction type, number of pairs

U2

iwo, ungrounded

Cable sheath material

S321

Steel AISI 321

Cable diameter

4.5

mm

Probe length

500

mm

Extension neck length

 

CTK Exi 01.02-029 – c1 – U2 – Т310D – 4,5 – 2000

Product type

CT

cable thermocouple

Type of TC

K

chromel-alumel

Explosion protection

Exi

0ExiaIICT6 X

Modification

01.02

without mounting elements

Cable gland

0

standard

Wring (terminal head code, connector)

29

IP65

Tolerance class

c1

first class

Output signal (accuracy class)

analogous

Junction type, number of pairs

U2

iwo, ungrounded

Cable sheath material

Т310D

AISI 310, double sheath thickness

Cable diameter

4.5

mm

Insertion length

2000

mm