Temperature

Measuring insert
For thermocouple
Model TC10-A
WIKA data sheet TE 65.01

for further approvals

see page 2

Applications

■ Replacement measuring insert for servicing

■ For all industrial and laboratory applications

Special features

■ Sensor ranges from -40 ... +1,200 °C [-40 ... +2,192 °F]
■ Made of mineral-insulated sheathed measuring cable
■ Functional safety (SIL) with model T32 temperature
transmitter
■ Spring-loaded design
■ Explosion-protected versions are available for many
approval types (see page 2)

Description
Measuring insert, model TC10-A
The measuring inserts per DIN 43735 for resistance
thermometers described here are designed for installation
in a protective fitting. Operation without thermowell is only
recommended in certain applications. The measuring insert
is made of a bendable mineral-insulated sheathed cable. The
thermocouple is located at the tip of the measuring insert.
The measuring inserts are delivered with pressure springs to
ensure that the measuring inserts are pressed down to the
thermowell bottom. Type and number of sensors, and accuracy can each be
selected to suit the respective application.
Apart from the DIN versions, customer-specific versions are
available, for example: A large number of different explosion protection approvals
■ other measuring insert lengths (also intermediate lengths) are availabe for the TC10-A.
■ with mounted sleeve to suit inner diameter of the
thermowell The range of applications is completed by designs without
■ without terminal block terminal block for direct transmitter installation. Optionally,
■ with transmitter transmitters from the WIKA range can be installed.

WIKA data sheet TE 65.01 ∙ 03/2021 Page 1 of 7

Data sheets showing similar products:

Threaded thermocouple; model TC10-C; see data sheet TE 65.03
Flanged thermocouple; model TC10-F; see data sheet TE 65.06
Explosion protection (option)

The permissible power Pmax as well as the permissible Attention:

ambient temperature for the respective category can be seen Depending on the version, the measuring inserts can be
on the Ex certificate or in the operating instructions. used in different ignition protection types when built into
model TC10-B, TC10-C, TC10-F or TC81 thermocouples.
With the correspondingly suitable protective fitting, operation
in dust Ex hazardous areas is possible.

The use of a model TC10-A measuring insert is not

permitted in hazardous areas without a suitable
protective fitting.

Approvals (explosion protection, further approvals)

Logo Description Country

EU declaration of conformity European Union
■ EMC directive 1)
EN 61326 emission (group 1, class B) and interference immunity (industrial application)
■ RoHS directive
■ ATEX directive (option)
Hazardous areas
- Ex i Zone 0 gas II 1G Ex ia IIC T1 ... T6 Ga
Zone 1 gas II 2G Ex ia IIC T1 ... T6 Gb
- Ex e 2) Zone 1 gas II 2G Ex eb IIC T1 ... T6 Gb 3) 5)
Zone 2 gas II 3G Ex ec IIC T1 ... T6 Gc X
- Ex n 2) Zone 2 gas II 3G Ex nA IIC T1 ... T6 Gc X
IECEx (option) - in conjunction with ATEX International
Hazardous areas
- Ex i Zone 0 gas Ex ia IIC T1 ... T6 Ga
Zone 1 gas Ex ia IIC T1 ... T6 Gb
- Ex e 4) Zone 1 gas Ex eb IIC T1 ... T6 Gb 3) 5)
Zone 2 gas Ex ec IIC T1 ... T6 Gc
- Ex n 4) Zone 2 gas Ex nA IIC T1 ... T6 Gc
EAC (option) Eurasian Economic
Hazardous areas Community
- Ex i Zone 0 gas 0Ex ia IIC T6…T1 Ga X
- Ex n Zone 2 gas 2Ex nA IIC T6 ... T1 Gc X
Ex Ukraine (option) Ukraine
Hazardous areas
- Ex i Zone 0 gas II 1G Ex ia IIC T1 ... T6 Ga
INMETRO (option) Brazil
Hazardous areas
- Ex i Zone 0 gas Ex ia IIC T3 ... T6 Ga
CCC (option) China
Hazardous areas
- Ex i Zone 0 gas Ex ia IIC T1 ~ T6 Ga
- Ex e 4) Zone 1 gas Ex e IIC T1 ~ T6 Gb 3) 5)
- Ex n 4) Zone 2 gas Ex nA IIC T1 ~ T6 Gc

1) Only for built-in transmitter

2) Only for connection head model BSZ, BSZ-H, 1/4000, 5/6000 or 7/8000 (see “Connection head”)
3) Only for insulated thermocouples
4) Only in combination with connection head model 1/4000, 5/6000 or 7/8000
5) Without transmitter

WIKA data sheet TE 65.01 ∙ 03/2021 Page 2 of 7

 Logo Description Country
KCs - KOSHA (option) South Korea
Hazardous areas
- Ex i Zone 0 gas Ex ia IIC T4 ... T6
Zone 1 gas Ex ib IIC T4 ... T6
- PESO (option) India
Hazardous areas
- Ex i Zone 0 gas Ex ia IIC T1 ... T6 Ga
Zone 1 gas Ex ia IIC T1 ... T6 Gb
GOST (option) Russia
Metrology, measurement technology
KazInMetr (option) Kazakhstan
Metrology, measurement technology
- MTSCHS (option) Kazakhstan
Permission for commissioning
BelGIM (option) Belarus
Metrology, measurement technology
UkrSEPRO (option) Ukraine
Metrology, measurement technology
Uzstandard (option) Uzbekistan
Metrology, measurement technology

Manufacturer's information and certifications

Logo Description
NAMUR NAMUR NE 024
Hazardous areas (Ex i)

Instruments marked with “ia” may also be used in areas only requiring instruments marked with “ib” or “ic”.
If an instrument with “ia” marking has been used in an area with requirements in accordance with “ib” or “ic”, it can no longer be operated in
areas with requirements in accordance with “ia” afterwards.

Approvals and certificates, see website

WIKA data sheet TE 65.01 ∙ 03/2021 Page 3 of 7

Sensor

Thermocouple per IEC 60584-1 or ASTM E230

Types K, J, E, N, T (single or dual thermocouple)

Measuring point
■ Ungrounded (standard)
■ Grounded

Sensor types

Type Validity limits of class accuracy

IEC 60584-1 ASTM E230
Class 2 Class 1 Standard Special
K -40 ... +1,200 °C -40 ... +1,000 °C 0 ... 1,260 °C
J -40 ... +750 °C -40 ... +750 °C 0 ... 760 °C
E -40 ... +900 °C -40 ... +800 °C 0 ... 870 °C
N -40 ... +1,200 °C -40 ... +1,000 °C 0 ... 1,260 °C
T -40 ... +350 °C 0 ... 370 °C

The table shows the temperature ranges listed in the

respective standards, in which the tolerance values (class
accuracies) are valid.

The actual operating temperature of the thermometers

is limited both by the maximum permissible working
temperature and the diameter of the thermocouple and the
MI cable, as well as by the maximum permissible working
temperature of the thermowell material.

For detailed specifications for thermocouples, see

IEC 60584-1 or ASTM E230 and Technical information
IN 00.23 at www.wika.com.

Tolerance value
For the tolerance value of thermocouples, a cold junction
temperature of 0 °C has been taken as the basis.

Electrical connection

Single thermocouple Dual thermocouple

3166822.03

The colour coding at

the positive poles of the
instrument decides the
correlation of polarity and
terminal.

For the electrical connections of built-in temperature transmitters see the corresponding data sheets or operating instructions.

WIKA data sheet TE 65.01 ∙ 03/2021 Page 4 of 7

Transmitter (option)

A transmitter can be built upon the measuring insert. In

this case, the transmitter replaces the terminal block and
is directly attached to the terminal plate of the measuring
insert. The temperature transmitter should be protected from
temperatures over 85 °C.

Output signal 4 ... 20 mA, HART® protocol

Transmitter (selectable versions) Model T16 Model T32
Data sheet TE 16.01 TE 32.04
Output
4 ... 20 mA x x
HART® protocol - x
Input
Thermocouple IEC 60584-1 K, J, E, N, T K, J, E, N, T
Galvanic isolation Yes Yes

Measuring insert with mounted transmitter Measuring insert prepared for transmitter mounting
(here: Model T32)

Functional safety (option)

with temperature transmitter model T32

In safety-critical applications, the entire measuring chain

must be taken into consideration in terms of the safety
parameters. The SIL classification allows the assessment of
the risk reduction reached by the safety installations.

Selected TC10-A measuring inserts in combination with a

suitable temperature transmitter (e.g. model T32.1S, TÜV
certified SIL version for protection systems developed in
accordance with IEC 61508) are suitable as sensors for
safety functions to SIL 2.

Matched thermowells allow easy dismounting of the

measuring insert for calibration. The optimally matched
measuring point consists of a thermowell, a thermometer
with built-in TC10-A measuring insert and a T32.1S
transmitter developed in accordance with IEC 61508. Thus,
the measuring point provides maximum reliability and a long
service life.

WIKA data sheet TE 65.01 ∙ 03/2021 Page 5 of 7

Dimensions in mm

The replaceable measuring insert is made of a vibration-resistant, sheathed measuring cable (MI cable).

Design prepared for Design with mounted NA

transmitter mounting transmitter
Spring-loaded screw
Connection
Insulation washer terminal
Terminal plate

Measuring insert
with sleeve in the

11466252.04
sensor area

Legend:
l5 Measuring insert length
Ø d Measuring insert diameter

Measuring insert length l5 in mm Tolerance in mm Please note:

Measuring inserts from a length of 1,100 mm are delivered
75 ... 825 +2
0 wound in a ring shape.
> 825 +3
Only on explicit request do we deliver measuring inserts with
0 lengths of greater than 1,100 mm in a stretched, straight
form. To specify this in the order, please contact your WIKA
contact person.

Measuring insert diameter Ø d in mm Index per DIN 43735 Tolerance in mm

3 1) Standard 30 3 ±0.05
0
6 Standard 60 6 -0,1
0
8 (6 mm with sleeve) Standard - 8 -0,1
0
8 Standard 80 8 -0,1

1/8 in [3,17 mm] On request - -

1/4 in [6,35 mm]
3/8 in [9,53 mm]

Only correct measuring insert length and correct measuring When fitting the measuring insert into a thermowell, it is
insert diameter ensure sufficient heat transfer from very important to determine the correct insertion length
thermowell to the measuring insert. (= thermowell length for bottom thicknesses of ≤ 5.5 mm). In
order to ensure that the measuring insert is firmly pressed
The bore diameter of the thermowell should be a max. 1 mm down onto the bottom of the thermowell, the measuring insert
larger than the measuring insert diameter. must be spring-loaded (spring travel: max. 10 mm).
Gaps of more than 0.5 mm between thermowell and the
measuring insert will have a negative effect on the heat
transfer, and they will result in unfavourable response
behaviour of the thermometer.

WIKA data sheet TE 65.01 ∙ 03/2021 Page 6 of 7

 Materials Operating conditions

Material The replaceable measuring insert is made of a vibration-

Sheath material Ni alloy: alloy 600 resistant, sheathed measuring cable (MI cable).
Standard vibration resistance: 50 g (sensor tip)
Other sheath materials on request.
Ambient and storage temperature
-60 1) / -40 ... +80 °C
Certificates (option) 1) Special version on request (explosion-protected versions only available with specific
approvals)

Certification type Measurement Material Other ambient and storage temperatures on request
accuracy certificate
2.2 test report x x
Ingress protection
3.1 inspection certificate x x
IP00 per IEC/EN 60529
DKD/DAkkS calibration x - The measuring inserts for the model TC10-A are designed
certificate
for mounting into protective components (connection head +
The different certifications can be combined with each other.
protection tube/thermowell).
These protective components feature connection heads/
The minimum length for carrying out a measurement cable glands/thermowells/protection tubes which ensure a
accuracy test 3.1 or DKD/DAkkS is 100 mm. higher IP protection.
Calibration of shorter lengths on request.

Ordering information
Model / Explosion protection / Ignition protection type / Zone / Sensor / Class accuracy / Application range of the
thermometer / Measuring insert length l5 / Measuring insert diameter Ø d / Sheath material / Mechanical requirements /
Certificates / Options

© 09/2003 WIKA Alexander Wiegand SE & Co. KG, all rights reserved.
The specifications given in this document represent the state of engineering at the time of publishing.
We reserve the right to make modifications to the specifications and materials.

WIKA data sheet TE 65.01 ∙ 03/2021 Page 7 of 7

03/2021 EN

WIKA Alexander Wiegand SE & Co. KG

Alexander-Wiegand-Straße 30
63911 Klingenberg/Germany
Tel. +49 9372 132-0
Fax +49 9372 132-406
info@wika.de
www.wika.de