OMEGA Unsheathed Fine Gage Thermocouples
OMEGA® IRCO, COCO,OPON,CHAL, CHCO,P13R,P10R,P30R fine gage 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 0.0005" 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.
OMEGA IRCO,CHAL,COCO,OPON,CHCO,P13R,P10R,P30R Unsheathed thermocouple
Feature:
Fast Response
Diameters down to 0.013mm (0.0005" )
High Accuracy
Pin-Point Measurements
Low Heat Transfer
ANSI Symbol
J Iron/Constantan
K CHROMEGA®/ALOMEGA®
T Copper/Constantan
E CHROMEGA®/Constantan
N OMEGA-P®, OMEGA-N®
R Pt 13% Rh/Pt
S Pt 10% Rh/Pt
B Pt 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**
|
315°C (600°F)
|
371°C (700°F)
|
371°C (700°F)
|
482°C (900°F)
|
|
k
|
593°C (1100°F)
|
871°C (1600°F)
|
871°C (1600°F)
|
982°C (1800°F)
|
|
N
|
593°C (1100°F)
|
871°C (1600°F)
|
871°C (1600°F)
|
982°C (1800°F)
|
|
T
|
149°C (300°F)
|
204°C (400°F)
|
204°C (400°F)
|
260°C (500°F)
|
|
E
|
315°C (600°F)
|
426°C (800°F)
|
426°C (800°F)
|
593°C (1100°F)
|
|
R,S
|
-
|
-
|
1450°C (2642°F)
|
1450°C (2642°F)
|
|
B
|
-
|
-
|
1700°C (3092°F)
|
1700°C (3092°F)
|
** 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)
|
0.05 sec
|
0.004 sec
|
0.002 sec
|
|
0.125 (0.005)
|
1.0 sec
|
0.08 sec
|
0.04 sec
|
|
0.381 (0.015)
|
10.0 sec
|
0.80 sec
|
0.40 sec
|
|
0.75 (0.032)
|
40.0 sec
|
3.2 sec
|
1.6 sec
|
Base Metal Calibrations: 300 mm (12") Length Standard
|
Calibration
|
Wire Dia.
mm (in)
|
Model
Number
|
|
J
Iron
Constantan
|
0.025 (0.001)
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-001
IRCO-002
IRCO-003
IRCO-005
IRCO-010
IRCO-015
IRCO-020
IRCO-032
|
|
T
Copper
Constantan
|
0.025 (0.001)
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-001
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
|
|
K CHROMEGA® ALOMEGA®
|
0.013 (0.0005)+
0.025 (0.001)
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-0005
CHAL-001
CHAL-002
CHAL-003
CHAL-005
CHAL-010
CHAL-015
CHAL-020
CHAL-032
|
|
E
CHROMEGA®
Constantan
|
0.013 (0.0005)+
0.025 (0.001)
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-0005
CHCO-001
CHCO-002
CHCO-003
CHCO-005
CHCO-010
CHCO-015
CHCO-020
CHCO-032
|
+:0.013 mm (0.0005") diameter wires supplied with 200 mm (8") leads, maximum length 300 mm (12")
Note: Shorter lead is negative lead
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
|
|
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
|
|
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
|
Applications
●biophysics
●metal cutting research
●gas chromatography
●internal combustion
engine temperatures
●scientific instruments
●medical research
●chemical reactions
●space vehicles
●industrial heating and structural applications
●cryogenics
●plasma research
●calorimetry
●thermoelectric cooling
●petro-chemical research
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