Proven Capabilities
®
hermocouple wire and thermocouple extension wire
ince 1914, SERV-RITE
S
from Watlow
All SERV-RITE wire is manufactured under rigid quality control. It is
manufactured under ISO 9001 quality standards. Some wire can even be
shipped next day for your convenience.
All testing has National Institute of Standards Technology (NIST), formally
National Bureau of Standards (NBS), traceability. Unless otherwise specified, all
SERV-RITE thermocouple wire and extension wire are supplied to meet
standard tolerances of ASTM E 230. Special tolerances are also available.
®
have been known for premimum performance and reliability.
t
Watlow provides:
• Same day shipment on hundreds of stock items
• Temperature range capability from -328 to 2200°F
(-200 to 1205°C)
• Superior products and technical support delivered
worldwide
• State-of-the-art, in-house laboratory services including;
calibration, end-to-end uniformity testing, drift testing, base
metal, platinum and standard platinum resistance
thermometer (SPRT) standards with traceability to NIST
• NIST certifications of conformance and calibration
• Multitude of overbraids, wraps and insulations available,
including electrical noise shields and wraps
• Full range of resistance temperature detector (RTD) wire
(not listed in this publication)
• ASTM E 230 tolerances from ±0.9°F (±0.5°C)
or ±0.4 percent
• ISO 17025 accredited lab
Features and Benefits
Type E, J, K, N and T
thermocouple wire
• Fits virtually all applications
Type EX, JX, KX, NX, TX
extension wire
• Matches thermocouple type
Compensation extension wire for
Type R and S thermocouples
• Permits fine tuning of
temperature measuring circuit
Solid or stranded wire
construction
• Meets specific application
requirements
Wide selection of insulation types
• Meets temperature, chemical,
moisture and abrasion resistance
objectives
Color coding
• Allows compliance with United
States, United Kingdom, Germany,
Japan and IEC standards
Select metallic overbraids and
wraps
• Provides enhanced abrasion
resistance
Stock RTD lead wire
• Meets virtually all industrial RTD
applications
SERV-RITE Wire and Cable
Nominal Resistance for Thermocouple Alloys in Ohms per Double Feet at 68°F (20°C)
B and S
Gauge
2 0.258 (6.5) 0.011 0.006 0.009 0.012
4 0.204 (5.2) 0.017 0.009 0.014 0.019
6 0.162 (4.1) 0.028 0.014 0.023 0.030
8 0.129 (3.3) 0.044 0.023 0.036 0.048
10 0.102 (2.6) 0.070 0.036 0.058 0.077
12 0.081 (2.1) 0.111 0.057 0.092 0.123 0.006 0.048
14 0.064 (1.6) 0.177 0.091 0.147 0.195 0.010 0.076
16 0.051 (1.3) 0.281 0.145 0.233 0.310 0.016 0.120
18 0.040 (1.0) 0.453 0.234 0.376 0.500 0.025 0.194
20 0.032 (0.8) 0.709 0.367 0.589 0.783 0.040 0.304
22 0.025 (0.7) 1.129 0.584 0.937 1.245 0.063 0.483
24 0.020 (0.5) 1.795 0.928 1.490 1.980 0.100 0.768
26 0.016 (0.4) 2.853 1.476 2.369 3.148 0.159 1.221
28 0.013 (0.3) 4.537 2.347 3.767 5.006 0.253 1.942
30 0.010 (0.3) 7.214 3.731 5.990 7.960 0.402 3.088
32 0.008 (0.2) 11.470 5.933 9.524 12.656 0.639 4.910
34 0.006 (0.2) 18.239 9.434 15.145 20.126 1.016 7.808
36 0.005 (0.1) 29.000 15.000 24.080 32.000 1.615 12.415
14 Stranded 0.076 (1.9) 0.161 0.083 0.134 0.178 0.009 0.069
16 Stranded 0.060 (1.5) 0.256 0.133 0.213 0.283 0.014 0.110
18 Stranded 0.048 (1.2) 0.408 0.211 0.338 0.450 0.023 0.174
20 Stranded 0.038 (1.0) 0.648 0.335 0.538 0.715 0.036 0.277
22 Stranded 0.030 (0.8) 1.031 0.533 0.856 1.137 0.057 0.441
24 Stranded 0.024 (0.6) 1.639 0.848 1.361 1.808 0.091 0.701
Diameter
in. (mm) E J K N RX, SX T
Conductor Size
B and S
Gauge
14 0.064 (1.6) 0.076 (1.9) 7 22
16 0.051 (1.3) 0.060 (1.5) 7 24
18 0.040 (1.0) 0.048 (1.2) 7 26
20 0.032 (0.8) 0.038 (1.0) 7 28
22 0.025 (0.6) 0.030 (0.8) 7 30
24 0.020 (0.5) 0.024 (0.6) 7 32
26 0.016 (0.4)
28 0.013 (0.3)
30 0.010 (0.3)
32 0.008 (0.2)
34 0.006 (0.2)
36 0.005 (0.1)
Solid Diameter
in. (mm)
Stranded Diameter
in. (mm) Number of Strands Stranding Gauge
1
y
Thermocouple Calibration Types
ANSI Popular Generic Maximum Useful (whichever is greater)
Code Conductor and Trade Names Temperature Ranges* Standard Special
p
p
Limits of Error
E
J
K
N
EP
EN
JP
JN
KP
KN
NP
NN
Chromel
Constantan
Iron
Constantan
Chromel
Alumel
Nicrosil
Nisil
®
®
®
T/C grade
-328 to 1652°F (-200 to 900°C)
Extension grade
32 to 392°F (0 to 200°C)
T/C grade
32 to 1382°F (0 to 750°C)
Extension grade
32 to 392°F (0 to 200°C)
T/C grade
-328 to 2282°F (-200 to 1250°C)
Extension grade
32 to 392°F (0 to 200°C)
T/C grade
32 to 2282°F (0 to 1250°C)
Extension grade
32 to 392°F (0 to 200°C)
Above 32°F (0°C)
±3.0°F (1.7°C) or 0.5%
Below 32°F (0°C)
±3.0°F (1.7°C) or 1.0%
±4.0°F (2.2°C) or 0.75% ±2.0°F (1.1°C) or 0.4%
Above 32°F (0°C)
±4.0°F (2.2°C) or 0.75%
Below 32°F (0°C)
±4.0°F (2.2°C) or 2.0%
Above 32°F (0°C)
±4.0°F (2.2°C) or 0.75%
±1.8°F (1.0°C) or 0.4%
±2.0°F (1.1°C) or 0.4%
±2.0°F (1.1°C) or 0.4%
RP
R**
RN
SP
S**
SN
TP
T
TN
* Note: Conductor gauge size may limit upper temperature ranges. Contact a Watlow representative for additional information.
**Note: Compensating alloys used for extension wire applications.
Copper
#11 Alloy
Copper
#11 Alloy
Copper
Constantan
Extension grade
32 to 392°F (0 to 200°C)
Extension grade
32 to 392°F (0 to 200°C)
T/C grade
-328 to 662°F (-200 to 350°C)
Extension grade
32 to 212°F (0 to 100°C)
±9.0°F (±5.0°C) ±1.1°F (0.6°C) or 0.1%
±9.0°F (±5.0°C) ±1.1°F (0.6°C) or 0.1%
Above 32°F (0°C)
±1.8°F (1.0°C) or 0.75%
Below 32°F (0°C)
±1.8°F (1.0°C) or 1.5%
±1.1°F (0.6°C) or 0.4%
2
International Color Codes
ANSI/ASTM ANSI/ASTM 1843 43710 C1610-1981 584-3 Common
T/C Exten. (Britian) (Germany) (Japan) (Europe) Uses
BS DIN JIS IEC
Suitable for use in
oxidizing or inert
atmosphere. Limited use
in vacuum or reducing
atmosphere. Suitable for
sub zero.
Reducing vacuum, inert.
Limited use in oxidizing
above 1004°F (540°C).
Not recommended for
sub zero.
Suitable for use in
oxidizing or inert
atmosphere. Limited use
in vacuum or reducing.
Suitable for sub zero.
Alternative to Type K.
More stable at high
temperatures.
Suitable for use in
oxidizing or inert
atmosphere. Do not
insert in metal tubes.
Beware of contamination
at high temperatures.
Suitable for use in
oxidizing or inert
atmosphere. Do not
insert in metal tubes.
Beware of contamination
at high temperatures.
Mild oxidizing, reducing
vacuum or inert. Good
where moisture is
present. Low
temperature and
cryogenic applications.
3
Braided Insulations
Insulation
Series Number
301
302
303
304
305
306
307
309
311
313
314
315
321
350
355
365
Insulations
Primary Secondary
itreous Silica Vitreous Silica
V
Double Glass Glass
namel Glass
E
lass Glass
G
Double Glass Wrap Glass
lass Glass (no impregnation)
G
TFE Glass
lass Glass
G
Glass Glass (low temp. impregnation)
eavy Glass Heavy Glass
H
Glass Twisted
lass Twisted
G
Glass Glass
eramic Fiber Ceramic Fiber
C
Ceramic Fiber Ceramic Fiber
itreous Silica Vitreous Silica
V
Temperature Range
Continuous Single Reading
°F (°C) °F (°C) Abrasion Moisture Chemical
1800 (982) 2000 (1093) F F G
900 (482) 1000 (538) G G G
900 (482) 1000 (538) F G G
900 (482) 1000 (538) F G G
900 (482) 1000 (538) F G G
900 (482) 1000 (538) F F G
900 (482) 1000 (538) G E E
1300 (704) 1600 (871) G F G
1300 (704) 1600 (871) F F G
900 (482) 1000 (538) G G G
1300 (704) 1600 (871) G G G
900 (482) 1000 (538) G G G
1300 (704) 1600 (871) G G G
2200 (1204) 2600 (1427) G F G
2200 (1204) 2600 (1427) G F G
1800 (982) 2000 (1093) F F G
Tape and Extruded Insulations
Insulation
Insulation Construction
Series Number
Single Shield Jacket
502 PVC PVC 221 (105) 221 (105) G E G
505 PVC Ripcord 221 (105) 221 (105) G E G
506 FEP FEP (<26 AWG) 400 (204) 500 (260) E E E
507 FEP FEP 400 (204) 500 (260) E E E
508 TFE Tape TFE Tape 500 (260) 600 (316) G E E
509 FEP Shield FEP 400 (204) 500 (260) E E E
510 PVC Shield PVC 221 (105) 221 (105) G E G
511 Polyimide Tape Twisted 600 (316) 800 (427) E E E
512 Polyimide Tape Polyimide Tape 600 (316) 800 (427) E E E
514 Tefzel
515 Tefzel
®
®
Shield Tefzel
Tefzel
®
®
516 PFA PFA 500 (260) 550 (288) G E E
517 PFA Shield PFA 500 (260) 550 (288) G E E
Temperature Range
Continuous Single Reading
°F (°C) °F (°C)
Abrasion Moisture Chemical
302 (150) 392 (200) E E E
302 (150) 392 (200) E E E
F = Fair, G = Good, E = Excellent
4
Ordering Information*
Code Number
③③
ANSI
Calibration
B and S
Gauge
Conductor
Type/
Tolerance
⑤⑤④④
Metallic
Overbraids
(Optional)
⑥⑥⑦⑦⑧⑧
Insulation
Series
⑨⑨②②①①
⑩⑩
Color
Codes
⑪⑪
①①
E = Type E
J = Type J
K = Type K
N = Type N
S = Type S
T = Type T
Note:
Color coding will be to ANSI standards, unless specified.
②②③③
14 -36
④④
1 =
Thermocouple grade, solid wire, standard tolerance
2 =
Thermocouple grade, solid wire, special tolerance
3 =
Thermocouple grade, stranded wire, standard tolerance
4 =
Thermocouple grade, stranded wire, special tolerance
5 =
Extension grade, solid wire, standard tolerance
6 =
Extension grade, solid wire, special tolerance
7 =
Extension grade, stranded wire, standard tolerance
8 =
Extension grade, stranded wire, special tolerance
Note:
Stranded conductors will be seven strand constructions. Contact
a Watlow representative for other configurations.
ANSI Calibration
B and S Gauge
Conductor Type/Tolerance
⑤⑤
S= Stainless steel
N=
Alloy 600
C=
Tinned copper
⑥⑥
⑧⑧
⑦⑦
Refer to insulation chart on page 4.
⑨⑨⑩⑩⑪⑪
Blank =
BSC =
DIN =
JIS =
IEC =
* Product normally shipped in 1,000 foot spools. Contact a Watlow
ANSI/ASTM E230 (formally ANSI MC96.1)
BS 1843
DIN 43710
JIS C 1610-1981
IEC 584-3
representative for special packaging.
Metallic Overbraids (optional)
Insulation Series
Color Codes
Watlow®and SERV-RITE®are registered trademarks of Watlow Electric Manufacturing Company
Teflon®and Tefzel®are registered trademarks of E.I. duPont de Nemours & Company.
Chromel®and Alumel®are registered trademarks of Hoskins Manufacturing Company.
5
Find out more about Watlow and how we can
provide thermal solutions for your company:
Phone: 1-800-WATLOW2 (1-800-928-5692)
E-mail: inquiry@watlow.com
Web site: www.watlow.com
Watlow Products and Technical
Support Delivered Worldwide
North American Technical Support &
Sales Offices
North America 1-800-WATLOW2
(1-800-928-5692)
Asian Technical Support &
Sales Offices
Australia +61 3 9335 6449
China +86 21 3381 0188
Japan +81 3 3518 6630
Korea +82 2 2628 5770
Malaysia +60 3 8076 8745
Singapore +65 6773 9488
Taiwan +886 7 288 5168
European Technical Support &
Sales Offices
France +33 1 41 32 79 70
Germany +49 (0) 72 53 / 94 00-0
Italy +39 024588841
Spain +34 91 675 12 92
United Kingdom +44 (0) 115 964 0777
Latin American Technical Support &
Sales Office
Mexico +52 442 217 6235
About Watlow
Watlow designs and manufactures industrial heaters,
temperature sensors, controllers and system
assemblies – all of the components of a thermal
system. Designing and manufacturing the complete
thermal system allows Watlow to recommend,
develop and deliver the optimum thermal solution for
our customers’ equipment and process heat
requirements.
Watlow manufactures thermal systems for a broad
range of industries including but not limited to:
semiconductor processing, photovoltaics, diesel
emmisions, aerospace, medical equipment and
foodservice equipment. Watlow customers receive
the highest level of technical engineering combined
with exceptional customer service.
Since 1922, Watlow has grown in product capability,
market experience and global reach. We hold more
than 200 patents and employ 2,000 employees
working in 12 manufacturing facilities in the United
States, Mexico, Europe and Asia. We also have sales
offices in 15 countries around the world. Our
company has grown at an exponential rate, but our
commitment remains the same – to provide our
customers with superior products and services for
their individual needs.
©2009
Your Authorized Watlow Distributor is:
© 2010 Watlow Electric Manufacturing Company
RIC-WB-1110
RIC-
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