311

These sensors are designed for solid body temperature measurement, for example, bearing temperature; and temperature measurement of liquid and gaseous media that do not destruct thermowell material, for example, natural gas. Sensors can be of explosion protection type 0ExiallCT6 X according to GOST 30852.10-2002.  For further details see "Alternative designs & Ordering information" below.

If required, thermocouples with  4-20 mА DC signal and/or digital signal via HART, PROFIBUS-PA, FOUNDATION Fieldbus protocol, can be equipped with remote measuring transmitters.

Technical characteristics

Connection diagram

3-wire

класс допуска А, В, С

4-wire

Vibration resistance GOST R 52931

group F3

Seismic resistance MSK-64

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

Climatic
category GOST 15150

UHL2Ambient temperature:

-60..+120ºС for general purpose products

-60..+85 ºС for Ex version with analogous signal

-55..+85ºС for products with unified output signal

Calibration

- GOST 8. 461-2009

Reliability indicators

Group of operating
conditions

Probability of
failure-free operation

Specified lifetime

Mean
lifetime

Guarantee
conditions

I

0.95 for 40 000 hours

5 years

10 years

5 years

II

0.95 for 16 000 hours

2 years

4 years (6 years)*

2 years

 

 

1 year

 

 

* - Increased mean lifetime with 0,6 failure-free operation possibility for the given period.

Temperature range

TC type

Thermowell diameter, mm

Thermowell material

Extension wire

Group of    
operating  
conditions

Tolerance
class

Application
temperature, °С

Cal. int.

Mean lifetime

CRTD

5

S10 or B

060

II

B, C

– 50…+150

2 years

4 years

8

050, 060

 

PRTD

5

S10 or B

060

I

A, B, С

– 50…+150

5 years

10 years

Время термической реакции:


Время термической реакции датчика в зависимости от диаметра, сек

d=3

d=5

d =8

6

8-10

15

Execution options

PRTD

 

Exi

301

0

60

Pt100

В

3

S10

8

L

/

l

 

 

1

 

2

3

 

4

5

 

6

 

7

8

 

9

 

10

 

11

 

12

 

13

 

NN

Name

Code

Description

1

Sensor type

CRTD

Copper resistance temperature detector

PRTD

Platinum resistance temperature detector

2

Explosion protection

Not filled

general purpose electrical equipment

Exi

0ExiaIICT6 X, intrinsically safe circuit

3

Modification

205, 301, 302

see drafts

4

Terminal head

0

Free electrode ends 50mm

IP65

0ExiaIICT6Х or general purpose

2

miniature plug

IP40

general purpose

4

standard plug

IP40

general purpose

5

Sensor terminal
head (see
"Alternative
designs", page 1-15)

50

stranded conductor, silicon rubber insulation

60

stranded conductor, PTFE insulation

80

stranded conductor, PTFE insulation, in metal hose Available only for 301 with special fitting, see draft

6

Type of TC

50М, 100М, 50P, 100P, Pt100, Pt500, Pt1000

NSC according to GOST 6651-2009

7

Tolerance class

А, В, С

Tolerance class according to GOST 6651-2009

8

Connection diagram

3, 4

3- and 4-wire connection diagram

9

Sheath material

S10

steel 12Cr18Ni10T

for PRTD (CRTD) 205, 301, 302

B

Brass

for PRTD (CRTD) 301, 302

10

Outer diameter, mm

3

for 205 only with 67 wire

5

for 301 only with 60 wire or 080 with special fitting, see draft

8

for 302 only with 60 wire

11

Probe length, L, mm

20÷60

for 205

20

for 301 made from brass (B), can be longer if made from S10

30

for 302 made from brass (B), can be longer if made from S10

12

Extension wire length

100÷30,000

specify dimensions in mm 500, 1000, 2000 3150 and more

13

Fitting standard size

Not filled

fitting М8х1 for 301, fitting М12х1.5 for 302

М16х1,5

fitting thread should be specified