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Thermoelectric converters
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Thermoelectric converters

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Technical characteristics
  • BrandИТеК ББМВ
  • Country of manufactureRussia
Description

Thermoelectric converters (TP) are designed to measure the temperature of liquid, gaseous, bulk media, dispersed media and suspensions without adhesion of particles, surfaces, as well as corrosive media that do not destroy the protective casing and protective fittings of the TP.

  • Modular structure (flexible configuration)
  • НСХ designation: ТХК (L), ТХА (К), ТНН (N), ТЖК (J), ТМК (Т)
  • Measured temperature range: from - 40 to 1250 ° С, depending on НСХ and design
  • Tolerance class: 1 or 2
  • Number of sensing elements: 1 or 2
  • Explosion protection: flameproof enclosure, intrinsically safe electrical circuit
  • The recommended calibration interval is:
    • 3 years with the upper limit of the measurement range up to 300 ° С;
    • 2 years with the upper limit of the measurement range over 300 ° С
  • Wide range of designs and materials for protective fittings
  • High measurement accuracy
  • Simplicity of design and reliability
  • Possibility of bending, installation in hard - to - reach places, in cable ducts

We are waiting for the completion of the certification process (type) of SI for thermocouples EnI - 300 TNN, TXA, THK, TZhK, TMK.

They are used to measure the temperature of various media in metallurgy, oil and gas, chemical industry, housing and communal services, mechanical engineering, energy and other fields. Explosion - proof TP can be used at facilities in zones of class 0; 1 and 2 according to GOST IEC 60079 - 14 - 2013, where the formation of mixtures of combustible gases and vapors with air of category IIC according to GOST IEC 60079 - 14 - 2013 of temperature group T1 . . . T6 inclusive is possible

Main technical characteristics

Table 1

Main characteristics Value
Thermocouple type THA, THK, TZhK, TMK, TNN
Nominal static characteristic of the sensing element (NSX) / temperature range N for TNN (nichrosil - nisil) / - 40 . . . + 1250 ° С

K for TXA (chromel - alumel) / - 40 . . . + 1250 ° С

L for THK (chromel - copel) / - 40 . . . + 600 ° С

J for TFA (iron - constantan) / - 40 . . . + 750 ° С

T for TMK (copper - constantan) / - 40 . . . + 350 ° С

Explosion protection "Flameproof enclosure" 1Ex d IIC T6GbX,

1Ex d IIC T5GbX, 1Ex d IIC T4 Gb X, except except for TP of modifications - 03, - 06, - 09

"Intrinsically safe electrical circuit" -

0Ex iaIICT6 GaX, 0Ex iaIICT5 GaX, 0Ex iaIICT4 GaX

Junction design isolated, non - isolated, isolated open
Body material aluminum alloy, stainless steel, heat resistant plastic
Fixing the housing cover screw, latch, threaded
Dust and moisture protection IP54, IP55, IP5X, IP65, IP66, IP67, IP68

(depending on housing design)

Measuring transducer with output 4 - 20, 20 - 4, 0 - 5 mA, 4 - 20 + HART, Profibus (PA)
Process connection type without fasteners, union, flange
Design of protective fittings without fitting, fixed fitting, movable fitting, with thinning, spring - loaded fitting
Mounting part lengths from 25 to 60,000 mm
Protective reinforcement material various grades of stainless steels and alloys, brass, graphite, silicon carbide, ceramics
External circuit connections terminal block, IP, incl. with LCD, free leads
Climatic version according to GOST 15150 - 69 UHL3.1 or U1.1
Average service life up to 10 years depending on the measured medium and application temperature
MTBF depending on the application temperature up to 50,000 hours

terms of Use

Type of climatic modification of the vehicle according to GOST 15150 - 69: UHL3.1 or U1.1, but for operation at ambient temperature - see. in table 2, the upper value of the relative humidity is 98% (at 25 ° C) and lower temperatures without moisture condensation

table 2

Vehicle execution Ambient temperature, ° С
version without explosion protection explosion - proof design (Ex ia, Ex d)
without individual entrepreneurs from minus 62 to + 120 ° С from minus 62 to + 95 ° С (Т4);

from minus 62 to + 85 ° С (Т5, Т6)

without housing with extension leads from minus 62 to + 180 ° С
with SP from minus 50 to + 85 ° С (depending on the applied IP)
with IP with LCD from minus 40 to + 85 ° С (depending on the applied IP)

When installing a TP with a thermal cover, the lower limit of the ambient temperature is minus 70 ° C. Thermocouples can be manufactured to operate within narrower ambient temperatures.

Thermocouple

Modifications Application Design features
Diameter of protective reinforcement / submersible

parts

Executions
01 the most common designs for virtually all industries. They can be used both with direct contact with the measured medium and with various thermowells. 6; 8; ten 1 without fitting;

2 movable union;

3 fixed fitting;

4 with thinning;

5 spring - loaded union

02 are intended, depending on the design and material of protective fittings, to measure the temperature of high - temperature gas media, including aggressive ones, the temperature of molten non - ferrous metals and alloys, molten salts. They can be manufactured with both metallic and non - metallic protective fittings. increased diameter from 16 to 20 mm

with wall thickness

2.2 . . . 2.5 mm

and more on request

1 ceramic covers with a diameter of 8 to 25 mm;

2 covers made of borosilicated

graphite with a diameter of 42 mm;

3 cast iron covers 35 and 42 mm

03 group of open - frame converters. They have low thermal inertia. Depending on the version, they can be used to measure temperature in hard - to - reach places, temperature of various surfaces, temperature of bearing assemblies, temperature of bodies and heads of worm presses. Can be used with external housings. 1.5; 2; 3;

4; 4.5; five;

6; 8; ten

1 lack of housing;

2 the possibility of bending;

3 free cable leads

(extension cable);

4 versions with connector;

5 contact plates (removable and

non - removable)

04 low - inertia sensors for high flow rates are used to measure the temperature of flue gases at gas - pumping units, measure the temperature of steam at thermal power plants, measure the temperature of the torch at the towers for burning associated gas. They have low thermal inertia. ten; sixteen; 20

diameter thinning

from 2.5 to 7 mm

1 low - inertia;

2 with housing;

3 with extension cable

05 cable converters have versions without a connecting nipple, with movable or fixed connecting nipples. 1.5; 2; 3;

4; 4.5; five

1 thermocouple cable (1.5 to 6 mm in diameter);

2 RTD (diameter 4.5 and 6 mm) cable

06 designed to measure the ambient temperature both indoors and outdoors. availability of special aluminum

or plastic housing for wall mounting

09 can be used both as stand - alone products and as thermometric inserts. Versions with a terminal block, free leads, with a power supply unit, with a power supply unit with LCD are possible. 1 thermocouple cable (with a diameter of 1.5 to 6 mm);

2 RTD (diameter 4.5 and 6 mm) cable

TP without IP

Tolerance class Temperature measurement range, ° С Limits of permissible deviations of thermal electromotive force from NSC, ° С
for sensors with НСХ type "N"
1 from - 40 to + 375 incl.

St. + 375 to + 1250

± 1.5

± 0.004 | t |

2 from - 40 to + 333 incl.

St. + 333 to + 1300

± 2.5

± 0.0075 | t |

for sensors with НСХ type "K"
1 from - 40 to + 375 incl.

St. + 375 to + 1100

± 1.5

± 0.004 | t |

2 from - 40 to + 333 incl.

St. + 333 to + 1250

± 2.5

± 0.0075 | t |

for sensors with НСХ type "L"
2 from - 40 to + 360 incl.

St. + 360 to + 600

± 2.5

± (0.7 + 0.005 | t |)

for sensors with NSX type "J"
1 from - 40 to + 375 incl.

St. + 375 to + 750

± 1.5

± 0.004 | t |

2 from - 40 to + 333 incl.

St. + 333 to + 750

± 2.5

± 0.0075 | t |

for sensors with НСХ type "Т"
1 from - 40 to + 125 incl.

St. + 125 to + 350

± 0.5

± 0.004 | t |

2 from - 40 to + 135 incl.

St. + 135 to + 350

± 1

± 0.0075 | t |

Note - | t | - absolute value of temperature, ° С.

TP with power supply with DC output signal

TP (NSX) execution Output signal range, mA Measuring range

temperature, ° С

Limits of the basic reduced error (at ambient temperature (tamb) from + 18 to + 22 ° С), % (of the measurement range) 1) 2)
TNN (N) from 4 to 20,

from 20 to 4,

from 0 to 5

from - 40 to + 1250 ± 0.25; ± 0.5; ± 1.0
THA (K) from - 40 to + 1250 ± 0.25; ± 0.5; ± 1.0
THK (L) from - 40 to + 600 0.25; ± 0.5; ± 1.0
TZhK (J) from - 40 to + 750 ± 0.5; ± 1.0
TMK (T) from - 40 to + 350 ± 0.5; ± 1.0

1) The difference between the upper and lower limits of the measuring range should be:

  • not less than 400 ° С for TP with the limit of the permissible basic reduced error ± 0.25% ,
  • not less than 200 ° С for TP with the limit of the basic reduced error ± 0.5% ,
  • not less than 100 ° С for TP with the limit of the basic reduced error ± 1% .

2) For TP type EnI - 300 TNN, EnI - 300 TXA with a lower measurement limit above plus 800 ° C, the absolute error is selected from values of ± 4 ° C or as a percentage of the measurement range selected when ordering, whichever is greater . . .

TP with MT with output current signal from 4 to 20 mA / HART

Sensor version (НСХ) Output signal range Temperature measurement range, ° С Limits of the basic reduced error (at ambient temperature (tamb) from + 18 to + 22 ° С), % (of the measurement range) 1) 2)
TNN (N) 4 to 20 mA / HART from - 40

up to + 1250

± 0.3; ± 0.4; ± 0.5; ± 1.0
THA (C) from - 40

up to + 1250

THK (L) from - 40

up to + 600

TZhK (J) from - 40

up to + 750

TMK (T) from - 40

up to + 350

1) The difference between the upper and lower limits of the measuring range should be:

  • not less than 330 ° С for TP with a limit of the basic reduced error ± 0.3% ,
  • not less than 250 ° С for TP with the limit of the permissible basic reduced error ± 0.4%
  • not less than 200 ° С for TP with the limit of the basic reduced error ± 0.5% ,
  • not less than 100 ° С for TP with the limit of the basic reduced error ± 1% .

2) For TP type EnI - 300 TNN, EnI - 300 TXA with a lower measurement limit above plus 800 ° C, the absolute error is selected from values of ± 4 ° C or as a percentage of the measurement range selected when ordering, whichever is greater . . .

TP with power supply with digital output signal Profibus (RA)

Sensor version (НСХ) Output signal type Temperature measurement range, ° С Limits of the basic reduced error (at ambient temperature (tamb) from + 18 to + 22 ° С), % (of the measurement range) 1) 2)
TNN (N) Standard

Profibus

(PA)

from - 40 to + 1250 ± 0.25; ± 0.5; ± 1.0
THA (C) from - 40 to + 1250

1) The difference between the upper and lower limits of the measuring range should be:

  • not less than 400 ° С for TP with the limit of the permissible basic reduced error ± 0.25% ,
  • not less than 200 ° С for TP with the limit of the basic reduced error ± 0.5% ,
  • not less than 100 ° С for TP with the limit of the basic reduced error ± 1% .

2) The limits of the permissible additional error of TP with MT caused by a change in the ambient temperature in the operating temperature range for every 10 ° from (20 ± 2) ° С do not exceed:

  • 0.15% - for TP with the limits of the permissible basic reduced error ± 0.25% , ± 0.3% ;
  • 0.25% - for TP with the limits of the permissible basic reduced error ± 0.4% , ± 0.5% ;
  • 0.5% - for TP with the limit of the basic reduced error ± 1% .
Electr. connection Power
protection
according to GOST
14254
Execution options Connection name Dimensions
C01) - - Fitting and O - ring -
FROM
IP66
general industry,
- Ex
Cable (gland) entry plastic cable Ø6 - 11 mm, Lmax = 55 mm  
C1
Cable gland nickel - plated brass steel 12X18H10T (cable Ø 6 - 12mm, Lmax = 55mm)
C1 / H10
Cable gland metal cable Ø6 - 12 mm, Lmax = 55 mm
K12 IP66

IP67

general industry,
- Ex, - Bn, Exdia
Cable gland for non - armored cable Explosion - proof version Exd single seal nickel plated brass
d = 6 - 12 mm
 
K143) d = 6.5 - 14 mm
K12 / H103) steel 12Х18Н10Тd = 6 - 12 mm
K14 / H103) d = 6.5 - 14mm
2KB123) Cable glands for armored cable Explosion - proof version Exd double sealed for all types of armor / braiding nickel plated brass
d = 6 - 12 mm, D = 16max
 
2KB12 / N103) steel 12Х18Н10Т
d = 6 - 12mm, D = 16 max
2KB14 / N103) d = 6.5 - 14mm, D = 20 max
2KB143) d = 6.5 - 14 mm, D = 20max
K12M15 IP66 Cable gland for non - armored cable for metal hose RZ - TsKh and MRPI nickel plated brass
d = 6 - 12 mm, DN = 15 mm
 
K14M15 Cable gland for non - armored cable for metal hose RZ - TsKh d = 6.5 - 14 mm, DN = 15 mm
K14M18 Cable gland for non - armored cable for metal hose RZ - TsKh d = 6.5 - 14 mm, DN = 18mm
K12M20 Cable gland for non - armored cable for metal hose RZ - TsKh and MRPI d = 6 - 12 mm, DN = 20mm
K14M20 Cable gland for non - armored cable for metal hose RZ - TsKh and MRPI d = 6.5 - 14 mm, DN = 20mm
K12M15 / N10 РЗ - ЦХ and МРПИсталь 12Х18Н10Т d = 6 - 12 mm, DN = 15 mm
K14M15 / N10 RZ - CH d = 6.5 - 14mm, DN = 15mm
K14M18 / N10 RZ - CH d = 6.5 - 14 mm, DN = 18 mm
K12M20 / N10 RZ - CH and MRPI d = 6 - 12 mm, DN = 20 mm
K14M20 / N10 RZ - CH and MRPI d = 6.5 - 14mm, DN = 20mm
SHR14
IP65 general industry. - Ex, Plug connector: plug 2PM14  
SHR22
Plug connector: plug 2PM22
- Complete set for ШР14: socket 2RM14 and straight branch pipe with shielded nut  
Complete set for ШР22: socket 2RM22 and straight branch pipe with screened nut
GSP
Plug GSP 3 Type A to DIN 43650
Socket GDM 3016 Type A acc. To DIN 43650 - Seal GDM 3

1) When code C0 is specified, the degree of protection is IP66, the actual degree of protection depends on the cable gland installed by the customer.

3) Var

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