Thermocouple ni sensor ya kupima joto.Inajumuisha metali mbili tofauti zilizounganishwa kwa mwisho mmoja.Kuna aina nyingi za thermocouples, aina ya J, K, T, & E ni aina za kawaida (Base Metal), na aina ya R, S, na B thermocouples hutumiwa katika maombi ya joto la juu (Nobal Metal).
Kiasi: | |
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Aina za Thermocouple na Aina ya Joto | ||||
---|---|---|---|---|
Aina | Nyenzo ya Waya | Muda.Masafa | Usahihi | |
+ | - | |||
K | Nickel-Chromium | Nickel-Alumel | -200 ~ 1000°C | +/- 2.2 ° C au +/- .75% |
J | Chuma | Constantan | 0~600°C | +/- 2.2 ° C au +/- .75% |
T | Shaba | Constantan | -200 ~ 300°C | +/- 1.0 ° C au +/- .75% |
E | Nickel-Chromium | Constantan | -200 ~ 700°C | +/- 1.7 ° C au +/- 0.5% |
N | Nicrosil | Nisil | -200 ~ 1200°C | +/- 2.2 ° C au +/- .75% |
R | Platinum Rhodium - 13% | Platinamu | 0~1400°C | +/- 1.5 ° C au +/- .25% |
S | Platinum Rhodi um - 1 0% | Platinamu | 0~1400°C | +/- 1.5 ° C au +/- .25% |
B | Platinamu Rhodium - 30% | Platinum Rhodium - 6% | 0~1500°C | +/- 0.5% |
Aina za Thermocouple na Aina ya Joto | ||||
---|---|---|---|---|
Aina | Nyenzo ya Waya | Muda.Masafa | Usahihi | |
+ | - | |||
K | Nickel-Chromium | Nickel-Alumel | -200 ~ 1000°C | +/- 2.2 ° C au +/- .75% |
J | Chuma | Constantan | 0~600°C | +/- 2.2 ° C au +/- .75% |
T | Shaba | Constantan | -200 ~ 300°C | +/- 1.0 ° C au +/- .75% |
E | Nickel-Chromium | Constantan | -200 ~ 700°C | +/- 1.7 ° C au +/- 0.5% |
N | Nicrosil | Nisil | -200 ~ 1200°C | +/- 2.2 ° C au +/- .75% |
R | Platinum Rhodium - 13% | Platinamu | 0~1400°C | +/- 1.5 ° C au +/- .25% |
S | Platinum Rhodi um - 1 0% | Platinamu | 0~1400°C | +/- 1.5 ° C au +/- .25% |
B | Platinamu Rhodium - 30% | Platinum Rhodium - 6% | 0~1500°C | +/- 0.5% |
Waya ya upanuzi wa thermocouple ni nini?
Waya ya kiendelezi cha thermocouple hutumika kupanua kutoka kwa uchunguzi wa thermocouple hadi mfumo wa kudhibiti au onyesho la dijiti haswa wakati umbali mrefu unahusika.Ni ya gharama nafuu na ya chini kuliko waya wa thermocouple.
Thermocouple Aina | Waya wa Ugani Aina | Nyenzo ya Waya | Muda.Msururu e (℃) | Uvumilivu (µV) | ||
+ | - | Darasa la 1 | Darasa la 2 | |||
K | KX | Nickel-chrome | Nickel-silicon | -25 ~ 200 | ± 60 | ±100 |
KCA | Nickel-chrome | Nickel-silicon | 0-150 | - | ±100 | |
KCB | Chuma | Nickel ya shaba | 0-150 | - | ±100 | |
KCC | Shaba | Nickel ya shaba | 0 ~ 100 | - | ±100 | |
E | EX | Nickel-chrome | Nickel ya shaba | -25 ~ 200 | ±120 | ±200 |
J | JX | Chuma | Nickel ya shaba | -25 ~ 200 | ±85 | ± 140 |
T | TX | Shaba | Nickel ya shaba | -25 ~ 100 | ±30 | ± 60 |
N | NX | Nickel-chrome | Nickel-silicon | -25 ~ 200 | ± 60 | ±100 |
NC | Nickel ya shaba | Nickel ya shaba | 0-150 | - | ±100 | |
R | RCA | Shaba | Nickel ya shaba | 0 ~ 100 | - | ±30 |
RCB | Shaba | Nickel ya shaba | 0 ~ 200 | - | ± 60 | |
B | BC | Shaba | Shaba | 0 ~ 100 | - | - |
S | SCA | Shaba | Nickel ya shaba | 0 ~ 100 | - | ±30 |
SCB | Shaba | Nickel ya shaba | 0 ~ 200 | - | ± 60 |
Waya ya upanuzi wa thermocouple ni nini?
Waya ya kiendelezi cha thermocouple hutumika kupanua kutoka kwa uchunguzi wa thermocouple hadi mfumo wa kudhibiti au onyesho la dijiti haswa wakati umbali mrefu unahusika.Ni ya gharama nafuu na ya chini kuliko waya wa thermocouple.
Thermocouple Aina | Waya wa Ugani Aina | Nyenzo ya Waya | Muda.Msururu e (℃) | Uvumilivu (µV) | ||
+ | - | Darasa la 1 | Darasa la 2 | |||
K | KX | Nickel-chrome | Nickel-silicon | -25 ~ 200 | ± 60 | ±100 |
KCA | Nickel-chrome | Nickel-silicon | 0-150 | - | ±100 | |
KCB | Chuma | Nickel ya shaba | 0-150 | - | ±100 | |
KCC | Shaba | Nickel ya shaba | 0 ~ 100 | - | ±100 | |
E | EX | Nickel-chrome | Nickel ya shaba | -25 ~ 200 | ±120 | ±200 |
J | JX | Chuma | Nickel ya shaba | -25 ~ 200 | ±85 | ± 140 |
T | TX | Shaba | Nickel ya shaba | -25 ~ 100 | ±30 | ± 60 |
N | NX | Nickel-chrome | Nickel-silicon | -25 ~ 200 | ± 60 | ±100 |
NC | Nickel ya shaba | Nickel ya shaba | 0-150 | - | ±100 | |
R | RCA | Shaba | Nickel ya shaba | 0 ~ 100 | - | ±30 |
RCB | Shaba | Nickel ya shaba | 0 ~ 200 | - | ± 60 | |
B | BC | Shaba | Shaba | 0 ~ 100 | - | - |
S | SCA | Shaba | Nickel ya shaba | 0 ~ 100 | - | ±30 |
SCB | Shaba | Nickel ya shaba | 0 ~ 200 | - | ± 60 |
Vipengele | 1. Gharama nafuu 2. Ndogo kwa ukubwa 3. Imara 4. Uendeshaji mbalimbali 5. Sahihi kwa mabadiliko makubwa ya joto 6. Majibu ya haraka 7. Uwezo wa joto pana | |||
Jinsi ya kuchagua | Tafadhali toa habari ifuatayo: 1. Ni nini maombi 2. Aina ya thermocouple (K/J/T/E/N/R/S/B) 3. Kipenyo na urefu wa uchunguzi 4. Mahitaji ya usakinishaji (uzi au saizi ya flange) 5. Kiwango cha joto 6. Upinzani wa kemikali wa thermocouple au nyenzo za sheath |
Vipengele | 1. Gharama nafuu 2. Ndogo kwa ukubwa 3. Imara 4. Uendeshaji mbalimbali 5. Sahihi kwa mabadiliko makubwa ya joto 6. Majibu ya haraka 7. Uwezo wa joto pana | |||
Jinsi ya kuchagua | Tafadhali toa habari ifuatayo: 1. Ni nini maombi 2. Aina ya thermocouple (K/J/T/E/N/R/S/B) 3. Kipenyo na urefu wa uchunguzi 4. Mahitaji ya usakinishaji (uzi au saizi ya flange) 5. Kiwango cha joto 6. Upinzani wa kemikali wa thermocouple au nyenzo za sheath |