Endress+Hauser iTEMP PCP TMT 121 User manual

BA 156R/24/ae/08.03
51006707 iTEMP®PCP TMT 121
Temperature DIN rail transmitter
Operating instructions

Temperature DIN rail transmitter
2Endress+Hauser
Safety message
Instructions and procedures in the operating instructions may require special precau-
tions to ensure the safety of the personnel performing the operations. Information that
potentially raises safety issues is indicated by safety pictograms and symbols. Please
refer to the safety messages before performing an operation preceded by pictograms
and symbols, see chapter 1.5.
Though the information provided herein is believed to be accurate, be advised that the
information contained herein is NOT a guarantee of satisfactory results. Specifically, this
information is neither a warranty nor guarantee, expressed or implied, regarding
performance; merchantability, fitness, or other matter with respect to the products; and
recommendation for the use of the product / process information in conflict with any
patent. Please note that the manufacturer reserves the right to change and / or improve
the product design and specifications without notice.
#Warning!
Failure to follow these installation guidelines could result in death or serious
injury.
– Make sure only qualified personnel perform the installation.
Explosions could result in death or serious injury.
– Do not remove the connection head cover in explosive atmospheres when the circuit
is live.
– Configuration of the transmitter is not permitted in a hazardous area, make sure the
transmitter setup is done before the transmitter will be installed in hazardous area.
– Verify that the operating atmosphere of the transmitter is consistent with the appro-
priate hazardous locations certifications.
– All connection head covers must be fully engaged to meet explosion-proof require-
ments.
Process leaks could result in death or serious injury.
– Do not remove the thermowell while in operation.
– Install and tighten thermowells and sensors before applying pressure.
Electrical shock could cause death or serious injury.
– Use extreme caution when making contact with the leads and terminals.
Brief overview
Using the following short form instructions you can commission your system easily and
swiftly:
Safety notes Page 4
➪
Installation Page 7
➪
Wiring Page 10
➪
Display and operating elements
Preparing the communication with PC configuration software
Page 12
➪
Instrument configuration (including a description of the unit
functions)
A complete description of all the functions as well as a detailed
overview of the functionality can be found in this chapter.
Page 13

Temperature DIN rail transmitter Endress+Hauser
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Table of contents
1 Safety notes. . . . . . . . . . . . . . . . . . . . . 4
1.1 Designated use . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Installation, commissioning and operation . . . 4
1.3 Operational safety . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5 Safety pictograms and symbols . . . . . . . . . . . 5
2 Identification. . . . . . . . . . . . . . . . . . . . 6
2.1 Unit identification . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Delivery contents . . . . . . . . . . . . . . . . . . . . . . 7
2.3 Registered trademarks . . . . . . . . . . . . . . . . . . 7
3 Installation . . . . . . . . . . . . . . . . . . . . . 7
3.1 Installation conditions . . . . . . . . . . . . . . . . . . . 7
3.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2 Measurement unit connection . . . . . . . . . . . . 10
4.3 Ground the Transmitter . . . . . . . . . . . . . . . . . 11
5 Operation. . . . . . . . . . . . . . . . . . . . . . 12
5.1 Communication . . . . . . . . . . . . . . . . . . . . . . . 12
6 Commissioning. . . . . . . . . . . . . . . . . 13
6.1 Installation and function check . . . . . . . . . . . 13
6.2 Switch on the device . . . . . . . . . . . . . . . . . . . 13
6.3 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 13
7 Maintenance . . . . . . . . . . . . . . . . . . . 16
8 Accessories . . . . . . . . . . . . . . . . . . . . 16
9 Trouble-shooting . . . . . . . . . . . . . . . 17
9.1 Trouble-shooting instructions . . . . . . . . . . . . 17
9.2 Application errors without messages . . . . . . 17
9.3 Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9.5 Software history . . . . . . . . . . . . . . . . . . . . . . . 19
10 Technical Data . . . . . . . . . . . . . . . . 20
10.1 Function and system design . . . . . . . . . . . . 20
10.2 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10.3 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
10.4 Power supply . . . . . . . . . . . . . . . . . . . . . . . . 22
10.5 Performance characteristics . . . . . . . . . . . . . 22
10.6 Installation conditions . . . . . . . . . . . . . . . . . . 23
10.7 Environmental conditions . . . . . . . . . . . . . . . 23
10.8 Mechanical construction . . . . . . . . . . . . . . . 24
10.9 Human interface . . . . . . . . . . . . . . . . . . . . . . 25
10.10 Certificates and approvals . . . . . . . . . . . . . . 25
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Safety notes Temperature DIN rail transmitter
4Endress+Hauser
1Safetynotes
Safe and secure operation of the DIN rail transmitter can only be guaranteed if the
operating instructions and all safety notes are read, understood and followed.
1.1 Designated use
•The unit is a universal, presettable temperature DIN rail transmitter for resistance
thermometer (RTD), thermocouple (TC) as well as resistance and voltage sensors.
The unit is constructed for mounting on a DIN rail.
•The manufacturer cannot be held responsible for damage caused by misuse of the
unit.
•Separate Ex documentation is part of this operating manual, for measurement sys-
tems in hazardous areas. The installation conditions and connection values indicated
in these instructions must be followed!
1.2 Installation, commissioning and operation
The unit is constructed using the most up-to-date production equipment and complies
to the safety requirements of the local guidelines. The temperature transmitter is fully
factory tested according to the specifications indicated on the order. However, if it is
installed incorrectly or is misused, certain application dangers can occur. Installation
and wiring of the unit must only be done by trained, skilled personnel who are
authorized to do so by the plant operator. This skilled staff must have read and
understood these instructions and must follow them to the letter. The plant operator
must make sure that the measurement system has been correctly wired to the
connection schematics.
Electrical temperature sensors such as RTD's and thermocouples produce low-level
signals proportional to their sensed temperature. The temperature transmitter converts
the low-level sensor signal to a standard 4 to 20 mA DC signal that is relatively
insensitive to lead length and electrical noise. This current signal is then transmitted to
the control room via two wires.
The transmitter needs to be commissioned before installation in a hazardous area.
Configuration of the device in explosion area is not allowed. Make sure the instruments
in the loop are installed in accordance with intrinsically safe or non-incendive field wiring
practices before connecting in an explosive atmosphere.
The transmitter electronics module is permanently sealed within the housing, resisting
moisture and corrosive damage. Verify that the operating atmosphere of the transmitter
is consistent with the appropriate hazardous locations certifications.
#Warning!
Electrical shock could cause death or serious injury. If the sensor is installed in a high
voltage environment and a fault or installation error occurs, high voltage may be present
on the transmitter leads and terminals.

Temperature DIN rail transmitter Safety notes
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1.3 Operational safety
Hazardous areas
When installing the unit in a hazardous area, the national safety requirements must be
met. Make sure that all personnel are trained in these areas. Strict compliance with
installation instructions and ratings as stated in this documentation is mandatory.
The measuring device complies with the general safety requirements in accordance
with IEC61010, the EMC requirements of IEC61326 and NAMUR recommendation NE21
and NE43.
Technical advancement
The manufacturer reserves the right to modify technical data without prior notice. Your
distributor can supply you with current information and updates to these Operating
Instructions.
1.4 Returns
Please follow the Return Authorization Policy at the end of these instructions. Due to its
construction, the transmitter cannot be repaired. When disposing of the transmitter,
please take note of the local disposal regulations.
1.5 Safety pictograms and symbols
Safe and reliable operation of this unit can only be guaranteed if the safety notes and
warnings in these operating instructions are followed. The safety notes in these
instructions are highlighted using the following symbols.
!Note!
This icon indicates activities and actions that, if not followed correctly, could have an
indirect influence on the unit operation or could lead to an unforeseen unit reaction.
"Caution!
This icon indicates activities and actions that, if not followed correctly, could lead to
faulty device operation or even damage to the unit.
#Warning!
This icon indicates activities and actions that, if not followed correctly, could lead to
personal injury, a safety risk or even total damage to the unit.
120
Explosion protected, type examined operating equipment!
If one of these icons is on the device’s nameplate, the device can be used in hazardous
areas.
-Hazardous area!
This symbol identifies the hazardous area in the diagrams in these Operating
Instructions.
– Devices that are used in hazardous areas or cables for such devices must have the
corresponding type of protection.
.Safe area (non-hazardous areas)!
This symbol identifies the non-hazardous area in the diagrams in these Operating
Instructions.
– Devices in non-hazardous areas must also be certified if connection cables run
through a hazardous area.

Identification Temperature DIN rail transmitter
6Endress+Hauser
2 Identification
2.1 Unit identification
2.1.1 Legend plate
Compare the legend plates on the DIN rail transmitter with the following figures:
Fig. 1: Example: DIN rail transmitter legend plate
Fig. 2: Identification for hazardous area use (example, only on FM certified units)
CE Mark, declaration of conformity 4
The devices are designed to meet state-of-the-art safety requirements, have been
tested, and left the factory in a condition in which they are safe to operate. The devices
comply with the applicable standards and regulations in accordance with IEC61010
"Protection Measures for Electrical Equipment for Measurement, Control, Regulation
and Laboratory Procedures" and with the EMC requirements of IEC61326.The
measuring system described in these Operating Instructions thus complies with the
statutory requirements of the EC Directives. The manufacturer confirms successful
testing of the device by affixing to it the CE mark.
UL recognized component to UL 3111-1
GL German Lloyd marine approval
GL Type Approval for temperature measurements in hazardous locations on GL
Classed Vessels, Marine and Offshore Installations.

Temperature DIN rail transmitter Installation
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2.2 Delivery contents
The delivery contents of the temperature DIN rail transmitter are as follows:
•Temperature DIN rail transmitter
•Operating instructions
•Control drawing for use in hazardous areas
!Note!
Please take note of the DIN rail transmitter accessories (Configuration Kit) in chapter 8
"Accessories".
2.3 Registered trademarks
•iTEMP®and ReadWin®2000
are registered trademarks of Endress+Hauser Wetzer GmbH + Co. KG, Nesselwang,
Germany
3 Installation
3.1 Installation conditions
•When installing and operating the unit, please take note of the allowable ambient
temperature (see chapter 10 "Technical Data").
•When using the unit in a hazardous area, the limits indicated in the certification must
be adhered to (see control drawing).
3.1.1 Dimensions
The DIN rail transmitter dimensions can be found in chapter 10 "Technical data".
3.1.2 Installation point
Installation on DIN rail according to EN 50 022-35, e.g. in control panel.
3.1.3 Installation angle
There are no limits as to the angle of installation.

Installation Temperature DIN rail transmitter
8Endress+Hauser
3.2 Installation
3.2.1 Typical North American installation
For installation, proceed as follows:
•Attach the TMT 121 transmitter to a suitable rail or panel.
•Attach thermowell (1) to pipe or process container wall. Install and tighten the ther-
mowell before applying process pressure.
•Attach necessary extension nipples and adapters (3) to the thermowell (1). Seal the
nipple and adapter threads with silicone tape.
•Screw the sensor (2) into the thermowell (1). Install drain seals if required for harsh
environments or to satisfy code requirements.
•Screw the connection head (4) to the sensor assembly.
•Attach the sensor lead wires to the connection head terminals.
•Connect sensor wires from the terminals inside the head to the TMT 121 transmitter
(5).
•Install and tighten the connection head cover. Enclosure covers must be completely
engaged to meet explosion-proof area requirements.
Fig. 3: Installation of DIN rail TMT 121 transmitter.
1 thermowell
2 sensor
3 extension nipples and adapters
4 connection head
5 TMT 121 transmitter

Temperature DIN rail transmitter Installation
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3.2.2 Typical European installation
For installation, proceed as follows:
•Attach the TMT 121 transmitter to a suitable rail or panel.
•Attach thermowell to pipe or process container wall. Install and tighten the thermowell
before applying any pressure.
•Attach and connect appropriate lengths of sensor lead wire from the connection head
to the sensor terminal block.
•Tighten the connection head cover. Enclosure covers must be completely engaged in
order to meet explosion-proof area requirements.
•Run the sensor lead wires from the sensor assembly to the TMT 121 transmitter.
•Attach the sensor wires to the TMT 121 transmitter.
Fig. 4: Installing the TMT 121 DIN rail transmitter

Wiring Temperature DIN rail transmitter
10 Endress+Hauser
4Wiring
4.1 Overview
Terminal layout
Fig. 5: DIN rail transmitter wiring
4.2 Measurement unit connection
"Caution!
•Switch off power supply before opening the housing cover. Do not install or connect
the unit to power supply. If this is not followed parts of the electronic circuit will be
damaged.
•If the device has not been grounded as a result of the housing being installed, we
recommend grounding it via one of the ground screws.
•Sensors:
Connect the sensor cables to the respective DIN rail transmitter terminals (Terminals
3 to 6) by following the wiring diagram .
•Output signal and power supply:
Connect the cable wires from the power supply to terminal 1 and 2 according to the
wiring diagram. For convenient installation, the connection is designed as a
removable plug, so the connection can be made on the terminals, then plug in the
connection socket to the transmitter housing.
!Note!
The screws on the terminals must be screwed in tightly.
•PC configuration (SETUP socket):
Connect the SETUP connection cable (see Fig. 5).