From uncertaintyto stability
22.06 тип ТППТ, ТПРТ
22.06 тип ТППТ, ТПРТ
These thermocouples are designed for tempera-ture measurement in high-temperature gaseous medium which does not destroy thermowell material. Thermocouple design allows sensing element calibration without thermocouple dismantling. 21.06 modification thermocouple is manufactured using five-channel straw made of aluminium-oxide ceramics (C799). Control thermocouple can be mounted in central bore 4 mm diameter. Four peripheral bores allows to product thermocouple with one or two sensing elements. Five-channel straw is mounted inside ceramic thermowell. 22.06 thermocouple has two inner ceramic ther-mowells, that are positioned in parallel. One of inner thermowell is designed for control or reference ther-mocouple. TCS, TCR (TCB) 21.06 or 22.06 thermocouple has metal outer thermowell made of heat-resistant alloy Fe-Cr-45%Ni or Kanthal APM, diameter (D) 20 or 27 mm correspondingly. Kanthal APM alloy has increased heat resistance and is recommended for use in sulphur-containing atmosphere and atmos-pheres with high carbon potential, because it is highly resistant to sulphur, sulphur-containing compounds and carbonization. Inner thermowell in both modifications is made of aluminium-oxide ceramics. Leak-proof safety fittings. TCS, TCR (TCB) 21.06 and 22.06 work part design is shown in the picture. Inner thermowell is made of ceramics, thus, it is necessary to protect thermocouple from impact during installation and operation. Thermowell damage results in quick thermocouple wire destruc-tion. Movable fitting UNKJ 031, UNKJ 041 or movable mounting flange UNKJ 030.00 are used for thermo-couple installation at site (see section 11)/ 22.06 thermocouple design is covered by utility model patent No. 94700.
Tolerance class:
1 - 2 for TCS and TCR
2 - 3 for TCS and TCR
Thermocouple wire diameter:
|
Designation |
Positive wire diameter |
Negative wire diameter |
|
А |
0.5 |
0.5 |
|
В |
0.4 |
0.5 |
|
С |
0.4 |
0.4 |
Hot junction:
one or two, ungrounded from thermowell
Thermal inertia index does not exceed
180 s – for thermocouple insertion part diameter equal to 20 mm;
not rated for thermocouple insertion part diameter equal to 27 mm.
|
Thermocouple type |
operating temperature range, °С |
Thermowell material |
Thermowell diameter, |
|
TCS, TCR |
0 to 1250 |
Т45 – alloy Fe-Cr-45%Ni |
20 |
|
TCB |
600 to 1250 |
||
|
TCS, TCR |
0 to 1300 (momentarily up to 1400) |
ТАРМ – alloy Kanthal АРМ |
27 |
|
TCB |
600 to 1300 (momentarily up to 1400) |
Insertion length L: 320, 400, 500, 630, 800, 1000, 1250, 1600 mm.
Thermocouple type |
Design |
Wire |
Tolerance |
Hot |
Thermowell |
Diameter |
Insertion |
||
|
modification |
typical |
min |
max |
||||||
|
TCS, TCR |
21.06 |
020, 022 |
А, В, С |
1, |
U, |
Т45 |
20 |
320 |
1600 |
|
ТАРМ |
27 |
320 |
1000 |
||||||
|
22.06 |
022 |
Т45 |
20 |
320 |
1600 |
||||
|
ТАРМ |
27 |
320 |
1000 |
||||||
|
TCB |
21.06 |
020, 022 |
А, В, С |
2, |
U, |
Т45 |
20 |
320 |
1600 |
|
ТАРМ |
27 |
320 |
1000 |
||||||
|
22.06 |
022 |
Т45 |
20 |
320 |
1600 |
||||
|
ТАРМ |
27 |
320 |
1000 |
||||||
* – see Appendix for version description.
** – typical version: TCS, TCR - 2 tolerance class; TCB - 3 tolerance class.
TCS, TCR (TCB) 21.06-022 - (А, В, С)Х - U(2) - Тхxх - D - L
TCS, TCR (TCB) 22.06-022 - (А, В, С)Х - U(2) - Тхxх - D - L
TCS 21.06-022 – А1 - U - Т45 - 20 - 630 – type S calibration thermocouple TCS10, modification 21.06-022 with central bore for sensing element calibration or graduation without dismantling. 0.5+/0.5– mm thermocouple wire diameter (А), tolerance class 1, one ungrounded junction (U), heat-resistant thermowell (Т45) diameter 20 mm, fitting length (L) 630 mm.
TCR 22.06-022 – А1 - U2 - Т45 - 20 - 800 – type R calibration thermocouple TCR13, modification 22.06-022 with peripheral bore for calibration or graduation without dismantling. 0,5+/05— mm thermocouple wire diameter (A), tolerance class 1, two ungrounded junctions (U2), heat-resistant thermowell made of Fe-Cr-45%Ni (Т45) diameter 20 mm, fitting length (L) 800 mm.
TCB 21.06-020 – B2 - U - Т45 - 20 - 1250 – type B calibration thermocouple TCB, modification 21.06-020 with central bore for sensing element calibration or graduation without dismantling. 0,4+/05— mm thermocouple wire diameter (B), tolerance class 2, one ungrounded junction (U), heat-resistant thermowell made of Fe-Cr-45%Ni (Т45) diameter 20 mm, fitting length (L) 1250 mm.
TCB 21.06-022 – B2 - U - Тapm - 27 - 1000 – type B calibration thermocouple TCB, modification 21.06-022 with central bore for sensing element calibration or graduation without dismantling. 0,4+/05— mm thermocouple wire diameter (В), tolerance class 2, one ungrounded junction (U), heat-resistant, heatproof thermowell made of Kanthal APM (Тарм) diameter 27 mm, fitting length (L) 1000 mm.