Daim ntawv thov
Nws feem ntau yog siv ua ke nrog cov cuab yeej tso saib, cov cuab yeej kaw, cov khoos phis tawj hluav taws xob, thiab lwm yam, nrog rau cov zis 4-20mA. Cov khoom no ncaj qha ntsuas qhov ntsuas kub ntawm cov kua, chav, cov pa tawm thiab cov khoom siv hauv thaj tsam ntawm -200℃-1300℃hauv ntau cov txheej txheem ntau lawm.
Nta
- Ob-kab kab ke nrog 4-20mA tso zis, muaj peev xwm tiv thaiv kev cuam tshuam;
- Txuag cov nqi them nyiaj ntawm cov xov hlau thiab kub transmitter installation;
- Kev ntsuas dav;
- Nruab nrog tsis siv neeg txias hlws ris kub them nyiaj thiab tsis yog - linear kho Circuit Court.
Txoj Cai Ua Haujlwm
Kev tawg- pov thawj thermocouple txais qhov sib txawv tawg- cov ntsiab lus pov thawj. Thaum muaj kev tawg tshwm sim hauv cov kab noj hniav, cov nplaim taws tom qab tawg tuaj yeem tua tau thiab txias los ntawm qhov sib koom ua ke ntawm qhov sib txawv, tiv thaiv cov nplaim hluav taws kub los ntawm kev sib kis sab nraud ntawm cov kab noj hniav, yog li ua tiav qhov ntsuas kub. Lub thermoelectromotive quab yuam (tsis kam) tsim los ntawm thermocouple (resistor) ua rau lub teeb liab tsis sib npaug los ntawm tus choj ntawm qhov kub thiab txias transmitter. Tom qab amplification, lub teeb liab no tau hloov mus rau hauv 4-20mA DC teeb liab thiab xa mus rau cov cuab yeej ua haujlwm, uas tom qab ntawd qhia txog qhov ntsuas kub sib xws.
Main Technical Parameters
Product Execution Standards
IEC 584, IEC 1515, IEC751, JB/T5518-91, JB/T7391-94
Kev ntsuas qhov ntsuas kub thiab tso cai yuam kev
Thermocouple
|
Qauv |
Index Number |
Qhov tseeb Class |
Tso cai yuam kev |
Kev ntsuas kub ntsuas (degree) |
|
WRNB |
K |
Chav kawm I |
± 1.5 degree; ± 0.004│t│ |
-40-+375; 375-1000 |
|
Chav II |
± 2.5 degree; ± 0.0075│t│ |
-40-+333; 333-1200 |
||
|
WRMB |
N |
Chav kawm I |
± 1.5 degree; ± 0.004│t│ |
-40-+375; 375-1000 |
|
Chav II |
± 2.5 degree; ± 0.0075│t│ |
-40-+333; 333-1200 |
||
|
WREB |
E |
Chav kawm I |
± 1.5 degree; ± 0.004│t│ |
-40-+375; 375-800 |
|
Chav II |
± 1.5 degree; ± 0.004│t│ |
-40-+333; 333-900 |
||
|
WRFB |
J |
Chav kawm I |
± 1.5 degree; ± 0.004│t│ |
-40-+375; 375-750 |
|
Chav II |
± 1.5 degree; ± 0.004│t│ |
-40-+333; 333-750 |
||
|
WRCB |
T |
Chav kawm I |
± 1.5 degree; ± 0.004│t│ |
-40-+125; 125-350 |
|
Chav II |
± 1 degree; ± 0.0075│t│ |
-40-+333; 133-350 |
||
|
WRPB |
S |
Chav kawm I |
± 1 degree; ± [1+0.003(t-1100)] |
0-+1100; 1100-1600 |
|
Chav II |
± 2.5 degree; ± 0.0025│t│ |
0-600; 600-1600 |
Thermistor
|
Qauv |
Index Number |
Kev ntsuas kub ntsuas (degree) |
Qhov tseeb Class |
Tso cai yuam kev |
|
WZPB |
Pt 100 |
-200-+500 |
Chav Kawm A; Chav B |
±(0.15+0.002|t|); ±(0.30+0.006|t|) |
|
WZCB |
Cu50; Cu100 |
-50-+100 |
- |
±(0.30+0.005|t|) |
Nco tseg: t yog tus nqi kiag li ntawm qhov ntsuas kub ntawm qhov ntsuas kub -sensitive element
|
Yam khoom Parameter |
Specification Paub meej |
|
Tso zis teeb liab |
4-20mA, load tsis kam 250Ω, kis tau tus mob hlau tsis kam 100Ω |
|
Txoj kev tso zis |
Ob -wire system |
|
Qhov tseeb Class |
Kub Transmitter: 0.1; 0.2; 0.5; Zaub: Analog qhia 2.5 chav kawm; Digital zaub 1.0 chav kawm |
|
Fais fab mov |
24VDC ± 10% |
|
Chav kawm tiv thaiv |
IP65 |
|
Explosion-proof Class |
Explosion- hom pov thawj: dIIBT4, dIICT5, dIICT6; Intrinsically muaj kev nyab xeeb hom: iaIICT6 |
|
Rwb thaiv tsev Resistance |
Lub rwb thaiv tsev tiv thaiv nruab nrab ntawm qhov ntsuas qhov ntsuas qhov tso tawm thiab lub tsev yuav tsum tsis pub tsawg dua 50MΩ |
|
Thermal Teb Sijhawm |
Thaum qhov ntsuas kub hloov pauv mus, lub sijhawm yuav tsum tau ua rau lub ntsuas hluav taws xob tam sim no tso tawm kom hloov mus rau 50% ntawm cov kauj ruam hloov feem ntau yog τ0.5. Yog hais tias cov kauj ruam teb stabilization lub sij hawm ntawm qhov kub thiab txias transmitter tsis tshaj 1/5 ntawm lub thermal teb stabilization lub sij hawm τ0.5 ntawm lub thermocouple (resistor), lub sij hawm thermal teb ntawm lub thermocouple (resistor) yog siv raws li lub thermal teb lub sij hawm ntawm lub ntsuas; Yog hais tias cov kauj ruam teb stabilization lub sij hawm ntawm qhov kub thiab txias transmitter tsis tshaj 1/2 ntawm lub thermal teb stabilization lub sij hawm τ0.5 ntawm lub thermocouple (resistor), lub sij hawm thermal teb ntawm qhov kub thiab txias transmitter yog siv raws li lub thermal teb lub sij hawm ntawm lub ntsuas. |
|
Basic yuam kev |
Qhov yuam kev yooj yim ntawm qhov ntsuas yuav tsum tsis txhob dhau qhov kev sib xyaw ua ke ntawm qhov yuam kev ntawm cov thermocouple (resistor) thiab qhov kub thiab txias transmitter. |
Ua haujlwm ib puag ncig
|
Installation Site Class |
Kub (degree) |
Tus txheeb ze humidity (%) |
Atmospheric siab (KPa) |
|
Cx 1 |
-25-+55 |
5-95 |
86-106 |
|
Cx 2 |
-25-+70 |
5-95 |
86-106 |
|
Cx 3 |
-40-+80 |
5-95 |
86-106 |
Kev txiav txim siab ntawm Kev Txhawb Tube Ntev
Kev khiav hauj lwm kub ntawm qhov kub thiab txias transmitter yog qhov sib npaug ntawm cov vaj tsev kub nce los ntawm kev txhawb nqa lub raj thiab qhov kub ntawm qhov chaw. Qhov ntsuas kub ntawm tsev nyob los ntawm lub raj txhawb nqa yog qhia hauv daim duab hauv qab no (ceeb toom: daim duab tsis tau muab hauv cov ntaub ntawv qub).
Daim ntawv pov thawj
|
Explosion-Proof Class |
Explosion-Cov ntawv pov thawj No. |
Certification Lub Cev |
|
dⅡB T4 |
wb 97151 |
NEPSI (National Instrumentation Explosion-Cov Ntaub Ntawv Pov Thawj Saib Xyuas Kev Nyab Xeeb thiab Chaw Tshawb Xyuas) |
|
dⅡB T4 |
wb 97152 |
|
|
dⅡC T4 |
wb 97203 |
|
|
dⅡB T5 |
wb 97204 |
|
|
iaⅡCT6 |
wb 99412 |
|
|
iaⅡCT6 |
wb 99413 |
Nco tseg: NEPSI yog National Instrumentation Explosion-Proof Safety Supervision and Inspection Station, lub teb chaws -cov ntawv pov thawj qib.
Cim npe nrov: Tuam Tshoj integrative kub transmitter manufacturers, lwm tus neeg, Hoobkas
