XA01959T/09/EN/02.22-00
715867372022-09-13

ProductsSolutions

Safety Instructions
iTEMP TMT142B
HART®
ATEX, IECEx: Ex db IIC T6 Gb
Ex tb IIIC Txxx°C Db

0Services

iTEMP TMT142B

XA01959T

iTEMP TMT142B
HART®
Table of contents
About this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Associated documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Supplementary documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Manufacturer´s certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Manufacturer address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety instructions: Installation of protection flameproof . . . . . . . . . . . . 6
Safety instructions: Installation of dust ignition protection . . . . . . . . . . . 7
Safety instructions: Special conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Temperature tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical connection data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Endress+Hauser

3

XA01959T

About thisdocument

iTEMP TMT142B

This document has been translated into several languages. Legally
determined is solely the English source text.
The document translated into EU languages is available:• In the download area of the Endress+Hauser website:www.endress.com -> Downloads -> Manuals and Datasheets ->Type: Ex Safety Instruction (XA) -> Text Search: …
• In the Device Viewer: www.endress.com -> Product tools ->Access device specific information -> Check device features
If not yet available, the document can be ordered.

Associateddocumentation

This document is an integral part of the following Operating
Instructions:• Operating instructions: BA00191R• Brief operating instructions: KA00222R• Technical Information: TI00107R

Supplementarydocumentation

4Explosion-protection brochure: CP00021Z
The Explosion-protection brochure is available:• In the download area of the Endress+Hauser website:www.endress.com -> Downloads -> Brochures and Catalogs ->Text Search: CP00021Z• On the CD for devices with CD-based documentation

Endress+Hauser

iTEMP TMT142B

Manufacturer´scertificates

XA01959T

IECEx certificate
Certificate number: KEM 06.0020X
Affixing the certificate number certifies conformity with the following
standards (depending on the device version)• IEC 60079-0: 2017
• IEC 60079-1: 2014
• IEC 60079-31: 2014
ATEX certificateCertificate number: KEMA 02ATEX2338X
EU Declaration of Conformity
Declaration number: EC_00164
UKCA certificate
Certificate number: CML 21UKEX11006 X
UKCA Declaration of Conformity
Declaration number: UK_00412

Manufacturer
address

Endress+Hauser

Endress+Hauser Wetzer GmbH + Co. KG
Obere Wank 187484 Nesselwang, Germany

5

XA01959T

iTEMP TMT142B

Safetyinstructions
Hazardous area
Zone 1, 2
EPL Gb, Gc
Zone 21, 22
EPL Db, Dc

Non-hazardous area

Remote mount sensor
configuration:
RTD, TC sensor+ Power supply-Flameproof approved temperature sensor
assembly

Integral mount sensor
configuration:+ Power supply-Local potential equalisation
A0050945

Safetyinstructions:
Installation ofprotection
flameproof

6

LWARNING
Explosive atmosphere‣ Do not open the electrical connection of the power supply circuit in
an explosive atmosphere.
• Comply with the installation and safety instructions in the Operating
Instructions.
• Install the device according to the manufacturer's instructions andany other valid standards and regulations (e.g. EN/IEC 60079-14).
• The housing of field transmitter must be connected to the potentialmatching line.
• Only the approved wire entries as specified in paragraph 10.3 of EN/
IEC60079-14, paragraph 16 of EN/IEC 60079-0, paragraph 13 ofEN/IEC 60079-1 must be used.
• For connection through a conduit entry approved for this purpose theassociated sealing facility shall be mounted directly to the housing.
• Seal the cable entries with certified cable glands and or blanking
elements which have at least type of protection Ex db.
Endress+Hauser

iTEMP TMT142B

XA01959T• For operating the transmitter housing at an ambient temperature
under -20 °C, appropriate cables and cable entries permitted for thisapplication must be used.
• For ambient temperatures higher than +70°C, use suitable heatresisting cables or wires, cable entries and sealing facilities for Ta+5K above surrounding.
• During operation, the cover must be screwed all the way in and thecover's safety catch must be fastened.
• The remote or integral mounted temperature sensor must comply
with the requirements according to EN/IEC 60079-1.
• The temperature class specified for the certified temperature sensor
shall be taken into account.

Safetyinstructions:
Installation ofdust ignition
protection

Safetyinstructions:
Special conditions

Endress+Hauser

LWARNING
Explosive atmosphere‣ In an explosive atmosphere, do not open the device (ensure that theIP 66/67 housing protection is maintained during operation).
• Comply with the installation and safety instructions in the Operating
Instructions.
• Install the device according to the manufacturer's instructions andany other valid standards and regulations (e.g. EN/IEC 60079-14).
• Seal the cable entries tight with certified cable glands which have atleast type of protection Ex tb suitable for Group IIIC (degree ofprotection IP6X).
• The housing of the field transmitter must be connected to thepotential matching line.
• The provided cable entries to option code glands are suitable ATEX/
IECEx certified cable glands with a temperature range of–20 to +95 °C.
• For ambient temperatures higher than +70 °C, use suitable heatresisting cables or wires, cable entries and sealing facilities forapplication temperature +5 K above surrounding.
• The remote or integral mounted temperature sensor must comply
with the requirements according to EN/IEC 60079-31.
• The maximum surface temperature specified for the certified
temperature sensor shall be taken into account.

• The flameproof joints are not intended to be repaired.
• The temperature transmitter must be installed so, that even in theevent of rare incidents, an ignition source due to impact or friction
between the enclosure and iron/steel is excluded.

7

XA01959T

TemperaturetablesElectricalconnection data

8

iTEMP TMT142B

Type

Temperature class

Ambient temperature

iTEMP
TMT142B

T6–40 °C ≤ Ta ≤ +55 °C

T5–40 °C ≤ Ta ≤ +70 °C

T4–40 °C ≤ Ta ≤ +80 °C

Type

Maximum surface
temperature

Ambient temperature

iTEMP
TMT142B+110 °C–40 °C ≤ Ta ≤ +80 °C

TypeElectrical data

iTEMP TMT142B

U ≤ 36 VDC
P≤3W

Category

Type of protection (ATEX/IECEx) Type

II 2G

Ex db IIC T6...T4 Gb

II 2D

Ex tb IIIC T110°C Db

iTEMP TMT142B

Endress+Hauser

*71586737*
71586737

www.addresses.endress.com