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a(S
984-2 Amend, 1 © 1EC
-5-
TABLE |
Tolerance classes for thermocouples
(reference Junction et 0 °C)
erarce value
Temperstire range
29,004-[]
40°C to ass “e
155 "e to 350"
10,0075: [41
-200 °C to -47 *e
0,015:[¢]
Teroerature range
Tglderes! aise
Teoerature rane
Tolerance value
40 "cto v375 *e
375 "C to 000 “ec
0,008-141
40 "c toss te
555 °C to 900°C
19,0075: [41
-200 “Cte -167 *e
so.015-[4f
Taperatine rane
Tolerapea value
Tenpgratire renoe
Tolersnce velie
40" to 375 *e
2,5"
19,004-[¢1
£0,0075-14]
Type Ks be
Terperature rane
Temperature rane
40 "cto 5"
375 "eto 1 000"
10,008-1¢
40% to ons te
555°C to 1 200 "©
10,0075-141
“167 "eto 40 *e
-200 *€ to -367 *e
s0.018-14]
Tipe Rs mes
Temperature range
Tolerapee value
Temperature renoe
Telerince valve
ne
11 + 04003,
ete
19,0025: [41
Temperature range
Tolerance vali
0,005-1¢] ‘Table 8 — Initial calibration tolerances for thermocouples
| Reference Junction 0°C
=. =| TOLERANCES
[aerate | eee Sinaard | Spee
| 0 rangee tether ingen) | _(wtenoer a
| 8 ‘87010 1760 10.5% ag
| e owe | aireesase seen
| J oiono waren or s19'cerana
| « o10 250 w2zCors070% sree |
| ee ote 10 sisceraa% s06°Cors01%
t 10380 ercersaren s0cors09%
yeni eges
© 200100 srcerars
| « 200100 s22 Corsi ”
| r =200'00 svCorsisn ~
“Tharmecouplee and thormocouple material ive normaly aupptod Yo meet te elerances spaced athe lala
tec the norma) spected ange. The sero mites, however, may atl vin the cryogenic lrances ine
‘second saction of tho ti. i materials aro ierured tomaat the exagenic flares, the purchase oor rast
9 stale Soloccn of matralsveualy wil b> requires. Tolerances Ines nis fab ee ol racessa iy ant
Indletion of te accuracy of erpecaure me acuremeris i use a iil heating of th mate els,
Lt lfermason i avaabe lo justly wetbishing special tlarancas for cryogenic temperatures Limited
‘wpercnce suggests the lowing tolranzes for Types © and T thermocouple
‘Type E200 00°C 41°C or 40.5% (whichave i rear)
Type T-200 190°C 30.5°C or 4.8% ihichavar i great)
‘Thea tlorances ar given eny as guido fo" decussln butween purchase snd spp. Dus tothe chmacins
‘es of ho materials, cnoganic tolerances fer Type J the:moceupian and apcial cryogenic toerances for Ty K
thormecoupis are not sto
Table 9 — Initlal calibration tclerances for thermocouple extension wires
LC Reteronce Junction 0°C
Tolerances
Extension Wire Type | Temperature Range, °C ‘Standard ‘Special
% ow BITC are al
ax atoz.0'¢ | 22 ae
«6 arozv0"e 2re |
x Oto 109" HT 208°
