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Fine Gage Bare Wire Thermocouple Elements, J, K, T, E, N, R & S

IRCO, CHAL, P13R AND P10R

Omega Precision Fine Wire Thermocouples | Small Size, Fast Response | IRCO, CHAL, P13R AND P10R

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RoHS
  • Small Size, Fast Response precision fine wire thermocouples
  • Diameters down to .002"
  • High Accuracy
  • Pin-Point Measurements
  • Low Heat Transfer
Thermocouples - View related products

Description

ANSI Symbol
JIron/Constantan   NOMEGA-P™, OMEGA-N™
KCHROMEGA™/ALOMEGA™   RPt 13% Rh/Pt
TCopper/Constantan   SPt 10% Rh/Pt
ECHROMEGA™/Constantan   BPt 6% Rh/Pt 30% Rh


Table 1

Maximum Service Temperature
Thermocouple
Type
0.13 mm
(0.005")
0.38 mm
(0.015")
0.51 mm
(0.020")
0.81 mm
0.032
J**
K
N
T
E
R,S
B
315°C (600°F)
593°C (1100°F)
593°C (1100°F)
149°C (300°F)
315°C (600°F)
-
-
371°C (700°F)
871°C (1600°F)
871°C (1600°F)
204°C (400°F)
426°C (800°F)
-
-
371°C (700°F)
871°C (1600°F)
871°C (1600°F)
204°C (400°F)
426°C (800°F)
1450°C (2642°F)
1700°C (3092°F)
482°C (900°F)
982°C (1800°F)
982°C (1800°F)
260°C (500°F)
593°C (1100°F)
1450°C (2642°F)
1700°C (3092°F)
Table 1 lists maximum service temperatures for long term exposures of bare wire thermocouples. For very short exposure times, temperatures of the fine gage thermocouples can be as high as the permissible temperatures for the 0.8 mm (0.032") diameter thermocouples.
** Do not expose to oxidizing atmospheres.


Table 2

Response Time *
Wire Size
mm (inches)
Still Air
427°C/38°C
800°F/100°F
60 ft./sec Air
427°C/38°C
800°F/100°F
Still H2O
93°C/38°C
200°F/100°F
0.025 (0.001)
0.125 (0.005)
0.381 (0.015)
0.75 (0.032)
0.05 sec
1.0 sec
10.0 sec
40.0 sec
0.004 sec
0.08 sec
0.80 sec
3.2 sec
0.002 sec
0.04 sec
0.40 sec
1.6 sec
*The time constant is defined as the time required to reach 63.2% of an instantaneous temperature change. The data for Table 2 are obtained by measuring the time required for a Type J fine gage thermocouple to reach 63.2% of its final temperature when its junction is alternately exposed to two different temperature levels. In this case, the time constant was measured for exposures between 427°C (800°F) and 38°C (100°F) air between 93°C (200°F) and 38°C (100°F) water.

Fine Gage Thermocouples
OMEGA™ fine wire thermocouples are used whenever fast, accurate temperature measurements are required. The fine wire diameters enable accurate temperature measurements without disturbing the base temperature of the body, in which the installation is made, by keeping heat transfer via the leads to a minimum. Also, the fine junction permits accurate “pin-pointing” of the measured values. They are available in wire sized ranging from 0.001" to 0.032" in diameter. All fine gage thermocouples are made from carefully selected materials. To insure consistent thermoelectric properties, each package contains thermocouples made from matched pairs of wire within the same lot number. When specified, several packages of thermocouples made from the same lot number can be supplied at no extra charge.

Response Time
While thermocouple response is a function of medium of submersion, wire diameter, alloy type and temperature level, it is possible to use Table 2 as a guide for comparing the various wire size thermocouples.


Important Ordering Notes

Base Metal Thermocouples
Prices given for 12 inch lengths (package of 5). Other sizes and lengths are available on special order. A 12 inch length corresponds to a 24 inch loop. To order longer lead lengths for base metal calibrations, add $4 per foot per package.

Platinum/Rhodium Thermocouples
Prices given for 6 inch lengths (sold individually). Other sizes and lengths are availableon special order. A 6 inch length corresponds to a 12 inch loop. To order longer lead lengths for Pt/Rh calibrations, see the table below.


Base Metal Calibrations: 300 mm (12") Length Standard
Calibration Wire Dia.
mm (in)
Model
Number
J
Iron
Constantan
0.050 (0.002)
0.075 (0.003)
0.125 (0.005)
0.25 (0.010)
0.38 (0.015)
0.5 (0.020)
0.81 (0.032)
IRCO-002
IRCO-003
IRCO-005
IRCO-010
IRCO-015
IRCO-020
IRCO-032
T
Copper
Constantan
0.050 (0.002)
0.075 (0.003)
0.125 (0.005)
0.25 (0.010)
0.38 (0.015)
0.5 (0.020)
0.81 (0.032)
COCO-002
COCO-003
COCO-005
COCO-010
COCO-015
COCO-020
COCO-032
N
OMEGA-P™
OMEGA-N™
0.075 (0.003)
0.125 (0.005)
0.25 (0.010)
0.50 (0.020)
0.81 (0.032)
OPON-003
OPON-005
OPON-010
OPON-020
OPON-032
Calibration Wire Dia.
mm (in)
Model
Number
K
CHROMEGA™
ALOMEGA™
0.050 (0.002)
0.075 (0.003)
0.125 (0.005)
0.25 (0.010)
0.38 (0.015)
0.50 (0.020)
0.81 (0.032)
CHAL-002
CHAL-003
CHAL-005
CHAL-010
CHAL-015
CHAL-020
CHAL-032
E
CHROMEGA™
Constantan
0.050 (0.002)
0.075 (0.003)
0.125 (0.005)
0.25 (0.010)
0.38 (0.015)
0.50 (0.020)
0.81 (0.032)
CHCO-002
CHCO-003
CHCO-005
CHCO-010
CHCO-015
CHCO-020
CHCO-032


Pt/Rh Calibrations: 150 mm (6") Length Standard – Sold Individually
Calibration Wire Dia.
mm (in)
Model
Number
R
Pt/13%Rh-
Pt
0.025 (0.001)
0.050 (0.002)
0.075 (0.003)
0.125 (0.005)
0.20 (0.008)
0.25 (0.010)
0.38 (0.015)
0.50 (0.020)
0.81 (0.032)
P13R-001
P13R-002
P13R-003
P13R-005
P13R-008
P13R-010
P13R-015
P13R-020
P13R-032
Calibration Wire Dia.
mm (in)
Model
Number
S
Pt/10%Rh-
Pt
0.025 (0.001)
0.050 (0.002)
0.075 (0.003)
0.125 (0.005)
0.20 (0.008)
0.25 (0.010)
0.38 (0.015)
0.50 (0.020)
0.81 (0.032)
P10R-001
P10R-002
P10R-003
P10R-005
P10R-008
P10R-010
P10R-015
P10R-020
P10R-032


Pt/Rh Calibrations: 150 mm (6") Length Standard – Sold Individually
Calibration Wire Dia.
mm (in)
Model
Number
B
Pt/30%Rh-
Pt/6%Rh-
0.20 (0.008)
0.25 (0.010)
0.38 (0.015)
0.50 (0.020)
0.81 (0.032)
P30R-008
P30R-010
P30R-015
P30R-020
P30R-032
 


View the Thermocouple Accuracy and Color Code charts
(Specify Model Number)

What Other People Bought: When you see this icon, click on it to expand a list of products that other people have bought when they purchased this model.

Part Number/Desc.
Qty
RoHS
Description
J Type Fine Gage Thermocouples. (See Part Number Builder below for more variations)
Quick Ship
IRCO-003
IRCO-003
MYR248.00
Availability: 1 week
RoHS compliant
J Type Thermocouple, Unsheathed, Diameter: 0.003", Length: 12"
Quick Ship
IRCO-010
IRCO-010
MYR110.00
Availability: 2 weeks
RoHS compliant
J Type Thermocouple, Unsheathed, Diameter: 0.010", Length: 12"
K Type Fine Gage Thermocouples. (See Part Number Builder below for more variations)
Quick Ship
CHAL-003
CHAL-003
MYR249.00
Availability: 1 week
RoHS compliant
K Type Thermocouple, Unsheathed, Diameter: 0.003", Length: 12"
Quick Ship
CHAL-005
CHAL-005
MYR110.00
Availability: 1 week
RoHS compliant
K Type Thermocouple, Unsheathed, Diameter: 0.005", Length: 12"
Quick Ship
CHAL-010
CHAL-010
MYR110.00
Availability: 2 weeks
RoHS compliant
K Type Thermocouple, Unsheathed, Diameter: 0.010", Length: 12"
Quick Ship
CHAL-020
CHAL-020
MYR110.00
Availability: 1 week
RoHS compliant
K Type Thermocouple, Unsheathed, Diameter: 0.020", Length: 12"
Quick Ship
  
CHAL-002
Consult Sales  
Availability: 
 
RoHS compliancy undetermined
K Type Thermocouple, Unsheathed, Diameter: 0.002", Length: 12"
Quick Ship
  
CHAL-002
Consult Sales  
Availability: 
 
RoHS compliancy undetermined
K Type Thermocouple, Unsheathed, Diameter: 0.002", Length: 12"
T Type Fine Wire Thermocouples. (See Part Number Builder below for more variations)
Quick Ship
COCO-003
COCO-003
MYR249.00
Availability: 1 week
RoHS compliant
T Type Thermocouple, Unsheathed, Diameter: 0.003", Length: 12"
Quick Ship
COCO-005
COCO-005
MYR110.00
Availability: 1 week
RoHS compliant
T Type Thermocouple, Unsheathed, Diameter: 0.005", Length: 12"
E Type Fine Gage Thermocouples. (See Part Number Builder below for more variations)
Quick Ship
CHCO-002
CHCO-002
MYR249.00
Availability: 1 week
RoHS compliant
E Type Thermocouple, Unsheathed, Diameter: 0.002", Length: 12"
Quick Ship
CHCO-010
CHCO-010
MYR110.00
Availability: 1 week
RoHS compliant
E Type Thermocouple, Unsheathed, Diameter: 0.010", Length: 12"
N Type Fine Gage Thermocouples. (See Part Number Builder below for more variations)
Quick Ship
  
OPON-003
MYR164.00
Availability: 2 weeks
RoHS compliant
N Type Thermocouple, Unsheathed, Diameter: 0.003", Length: 12"
Quick Ship
  
OPON-005
MYR125.00
Availability: 1 week
RoHS compliant
N Type Thermocouple, Unsheathed, Diameter: 0.005", Length: 12"
R Type Thermocouples. (See Part Number Builder below for more variations)
Quick Ship
P13R-002
P13R-002
MYR221.00
Availability: 3 weeks
RoHS compliant
R Type Thermocouple, Unsheathed, Diameter: 0.002", Length: 6"
Quick Ship
P13R-005
P13R-005
MYR297.00
Availability: 1 week
RoHS compliant
R Type Thermocouple, Unsheathed, Diameter: 0.005", Length: 6"
S Type Thermocouples. (See Part Number Builder below for more variations)
Quick Ship
P10R-005
P10R-005
MYR297.00
Availability: 2 weeks
RoHS compliant
S Type Fine Gage Thermocouple, Unsheathed, Diameter: 0.005", Length: 6"
Quick Ship
  
P10R-008
MYR485.00
Availability: 2 weeks
RoHS compliant
S Type Thermocouple, Unsheathed, Diameter: 0.008", Length: 6"
B Type Fine Wire Thermocouples. (See Part Number Builder below for more variations)
Quick Ship
P30R-008
P30R-008
MYR590.00
Availability: 1 week
RoHS compliant
B Type Thermocouple, Unsheathed, Diameter: 0.008", Length: 6"
Quick Ship
P30R-010
P30R-010
MYR850.00
Availability: 1 week
RoHS compliant
B Type Thermocouple, Unsheathed, Diameter: 0.010", Length: 6"
All prices on this site are shown in Malaysian Ringgit.
Note: Thermocouples .005" Dia and larger are made with Special Limits of Error Wire. Order Thermocouples insulators separately, eg DH-1-24
Ordering Example: (1) IRCO-003 J Type Thermocouple, Unsheathed, Diameter: 0.003, MYR248.00

Option Descriptions:


(1) Thermocouple Type select from:
IRCO for J Type
CHAL for K Type
COCO for T Type
CHCO for E Type
OPON for N Type
P13R for R Type
P10R for S Type
P30R for B Type

(2) Wire Diameter select from:
001 for 0.001" (R and S type only) Diameter
002 for 0.002" Diameter
003 for 0.003" Diameter
005 for 0.005" Diameter
008 for 0.008" Diameter(For R and S type only)
010 for 0.010" Diameter
015 for 0.015" Diameter
020 for 0.020" Diameter
032 for 0.032" Diameter
Note: All combinations may not be valid, check spec sheet for valid part numbers.