Endress+Hauser iTEMP TMT82 Technical specifications

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Brief Operating Instructions
iTEMP TMT82
2-channel temperature transmitter
These instructions are Brief Operating Instructions; they do
not replace the Operating Instructions included in the scope of
supply.
Detailed information can be found in the Operating
Instructions and the additional documentation.
Available for all device versions via:
• Internet: www.endress.com/deviceviewer
• Smart phone/tablet: Endress+Hauser Operations App
KA01095T/09/EN/19.21
71502237
2021-01-15

iTEMP TMT82
2 Endress+Hauser
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer Endress+Hauser
Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.
A0023555

iTEMP TMT82 Table of contents
Endress+Hauser 3
Table of contents
1 Important document information ................................................. 3
1.1 Safety Instructions (XA) ................................................................. 3
1.2 Functional safety ...................................................................... 4
1.3 Symbols ............................................................................. 4
2 Basic safety instructions .......................................................... 5
2.1 Requirements for the personnel ............................................................ 5
2.2 Intended use .......................................................................... 5
2.3 Operational safety ......................................................................5
3 Incoming acceptance and product identification ................................... 6
3.1 Incoming acceptance .................................................................... 6
3.2 Product identification ................................................................... 6
3.3 Name and address of manufacturer ......................................................... 8
3.4 Scope of delivery ....................................................................... 8
3.5 Certificates and approvals ................................................................ 9
4 Mounting ......................................................................... 9
4.1 Mounting requirements ................................................................. 9
4.2 Mounting ........................................................................... 10
4.3 Post-mounting check .................................................................. 15
5 Electrical connection ............................................................ 16
5.1 Connection conditions .................................................................. 16
5.2 Quick wiring guide .................................................................... 17
5.3 Connecting the sensor cables ............................................................. 20
5.4 Connecting the transmitter .............................................................. 22
5.5 Special connection instructions ........................................................... 22
5.6 Ensuring the degree of protection ......................................................... 23
5.7 Post-connection check ..................................................................24
6 Operating options ............................................................... 25
6.1 Measured value display and operating elements ............................................... 25
6.2 Configuration of transmitter and HART® protocol .............................................. 27
7 Commissioning .................................................................. 27
1 Important document information
1.1 Safety Instructions (XA)
When using in hazardous areas, compliance with national regulations is mandatory. Separate
Ex-specific documentation is provided for measuring systems that are used in hazardous
areas. This documentation is an integral part of these Operating Instructions. The installation
specifications, connection data and safety instructions it contains must be strictly observed!
Make sure that you use the right Ex-specific documentation for the right device with approval
for use in hazardous areas! The number of the specific Ex documentation (XA...) is provided
on the nameplate. If the two numbers (on the Ex documentation and the nameplate) are
identical, then you may use this Ex-specific documentation.

Important document information iTEMP TMT82
4 Endress+Hauser
1.2 Functional safety
Please refer to Safety Manual SD01172T/09 for the use of approved devices in protective
systems according to IEC 61508.
1.3 Symbols
1.3.1 Safety symbols
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in
personal injury.
1.3.2 Tool symbols
Symbol Meaning
A0011220
Flat blade screwdriver
A0011219
Phillips head screwdriver
A0011221
Allen key
A0011222
Open-ended wrench
1.3.3 Registered trademark
HART®
Registered trademark of the FieldComm Group, Austin, Texas, USA

iTEMP TMT82 Basic safety instructions
Endress+Hauser 5
2 Basic safety instructions
2.1 Requirements for the personnel
The personnel for installation, commissioning, diagnostics and maintenance must fulfill the
following requirements:
‣Trained, qualified specialists must have a relevant qualification for this specific function
and task
‣Are authorized by the plant owner/operator
‣Are familiar with federal/national regulations
‣Before beginning work, the specialist staff must have read and understood the instructions
in the Operating Instructions and supplementary documentation as well as in the
certificates (depending on the application)
‣Following instructions and basic conditions
The operating personnel must fulfill the following requirements:
‣Being instructed and authorized according to the requirements of the task by the facility's
owner-operator
‣Following the instructions in these Operating Instructions
2.2 Intended use
The device is a universal and user-configurable temperature transmitter with either one or
two sensor inputs for for a resistance thermometer (RTD), thermocouples (TC), resistance and
voltage transmitters. The head transmitter version of the device is intended for mounting in a
terminal head (flat face) as per DIN EN 50446. It is also possible to mount the device on a DIN
rail using the optional DIN rail clip. The device is also optionally available in a version suitable
for DIN rail mounting as per IEC 60715 (TH35).
If the equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
The manufacturer is not liable for damage caused by improper or non-designated use.
2.3 Operational safety
‣Operate the device in proper technical condition and fail-safe condition only.
‣The operator is responsible for interference-free operation of the device.
Hazardous area
To eliminate a danger for persons or for the facility when the device is used in the hazardous
area (e.g. explosion protection or safety equipment):
‣Based on the technical data on the nameplate, check whether the ordered device is
permitted for the intended use in the hazardous area. The nameplate can be found on the
side of the transmitter housing.
‣Observe the specifications in the separate supplementary documentation that is an integral
part of these Instructions.

Incoming acceptance and product identification iTEMP TMT82
6 Endress+Hauser
Electromagnetic compatibility
The measuring system complies with the general safety requirements as per EN 61010-1, the
EMC requirements as per the IEC/EN 61326 series and the NAMUR recommendations NE 21.
NOTICE
‣The device must only be powered by a power unit that operates using an energy-limited
electric circuit according to UL/EN/IEC 61010-1, chapter 9.4 and requirements of table 18.
3 Incoming acceptance and product identification
3.1 Incoming acceptance
1. Unpack the temperature transmitter carefully. Is the packaging or content damaged?
 Damaged components may not be installed as the manufacturer can otherwise not
guarantee compliance with the original safety requirements or the material
resistance, and can therefore not be held responsible for any resulting damage.
2. Is the delivery complete or is anything missing? Check the scope of delivery against your
order.
3. Does the nameplate match the ordering information on the delivery note?
4. Are the technical documentation and all other necessary documents provided? If
applicable: are the Safety Instructions (e.g. XA) for hazardous areas provided?
If one of these conditions is not satisfied, contact your Endress+Hauser Sales Center.
3.2 Product identification
The following options are available for identification of the device:
• Nameplate specifications
• Extended order code with breakdown of the device features on the delivery note
• Enter the serial number from the nameplate in the W@M Device Viewer
(www.endress.com/deviceviewer): All data relating to the device and an overview of the
Technical Documentation supplied with the device are displayed.
• Enter the serial number on the nameplate into the Endress+Hauser Operations App or scan
the 2-D matrix code (QR code) on the nameplate with the Endress+Hauser Operations App:
all the information about the device and the technical documentation pertaining to the
device is displayed.
3.2.1 Nameplate
The right device?
Compare and check the data on the nameplate of the device against the requirements of the
measuring point:

iTEMP TMT82 Incoming acceptance and product identification
Endress+Hauser 7
3
11-42V 012345678910
xx.yy.zz
TMT82- XXXXX/XX
iTEMP
Made in Germany 201x
D-87484 Nesselwang
Ser.no.:
FW:
Input:
12345678ABCDEFGH
12345678ABCDEFGH
Dev.Rev: x
Ext. ord. cd.:
XXXXXXXXXXXXX#
12
4
5
6
7
A0014561
 1 Nameplate of the head transmitter (example, Ex version)
1 Power supply, current consumption and extended order code
2 Serial number, device revision, firmware version and hardware version
3 Data Matrix 2D code
4 2 lines for the TAG name
5 Approval in hazardous area with number of the relevant Ex documentation (XA...)
6 Approvals with symbols
7 Order code and manufacturer ID
6
0044
iTEMP®TMT82
Made in Germany 2012 D-87484 Nesselwang
TAGXXXXXXXXXXX
TAGXXXXXXXXXXX
Order code: TMT82-xxx/xx
Ext. ord. cd.: XXXXXXXXXXX
Ser. no.: XXXXXXXXX
Input: 12-42 V
Current cunsum.: 23,0 mA
1
EH 08.001X
II3G Ex nA II T6/T5/T4 Ta= -40 ...+ 55/70/85°C
II3G Ex nL IIC T6/T5/T4 Ta= -40 ... +55/70/85°C
Install per XA0xxxxT/09/a3/xx.xx
7
1
2
3
4
5
7
8
A0017924
 2 Nameplate of DIN rail transmitter (example, Ex version)
1 Product name and manufacturer ID
2 Order code, extended order code and serial number, DataMatrix 2D code, FCC-ID (if applicable)
3 Power supply and current consumption, output
4 Approval in hazardous area with number of the relevant Ex documentation (XA...)
5 Fieldbus communication logo
6 Firmware version and device revision
7 Approval logos
7 2 lines for the TAG name

Incoming acceptance and product identification iTEMP TMT82
8 Endress+Hauser
D-87484 Nesselwang
202x
1
2
3
4
5
A0042425
 3 Nameplate of the field mount housing version (example, Ex version)
1 Order code, extended order code, serial number and manufacturer ID
2 Power supply and current consumption, IP-code and ambient temperature, firmware, hardware and
device revision
3 Approval in hazardous area with number of the relevant Ex documentation (XA....) and ambient
temperature range
4 Approval logos and data matrix 2D code
5 2 lines for the TAG name
3.3 Name and address of manufacturer
Name of manufacturer: Endress+Hauser Wetzer GmbH + Co. KG
Address of manufacturer: Obere Wank 1, D-87484 Nesselwang or www.endress.com
Address of manufacturing plant: See nameplate
3.4 Scope of delivery
The scope of delivery of the device comprises:
• Temperature transmitter
• Mounting material (head transmitter), optional
• Hard copy of multi-language Brief Operating Instructions
• Functional Safety Manual (SIL mode)
• Additional documentation for devices which are suitable for use in the hazardous area
(ATEX, FM, CSA), such as Safety Instructions (XA)

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Endress+Hauser 9
3.5 Certificates and approvals
The device left the factory in a safe operating condition. The device complies with the
requirements of the standards EN 61010-1 "Safety Requirements for Electrical Equipment for
Measurement, Control, and Laboratory Use" and with the EMC requirements as per the
IEC/EN 61326 series.
3.5.1 CE/EAC mark, Declaration of Conformity
The device meets the legal requirements of the EU/EEU guidelines. The manufacturer
confirms that the device is compliant with the relevant guidelines by applying the CE/EAC
mark.
3.5.2 HART® protocol certification
The temperature transmitter is registered by the HART® FieldComm Group. The device meets
the requirements of the HART® Communication Protocol Specifications, Revision 7 (HCF 7.6).
3.5.3 Functional safety
The two device versions (head transmitter/DIN rail device) are optionally available for use in
safety systems as per IEC 61508.
• SIL 2: Hardware version
• SIL 3: Software version
4 Mounting
4.1 Mounting requirements
4.1.1 Mounting location
• Head transmitter:
• In the terminal head, flat face, as per DIN EN 50446, direct mounting on insert with cable
entry (middle hole 7 mm)
• In the field housing, separated from the process
• In the field mount housing with separate terminal compartment, if stable sensors are
used, the device can be fitted directly on the assembly, otherwise it has to be mounted
separated from the process
• With clip on DIN rail as per IEC 60715, TH35
• DIN rail transmitter:
In DIN rail housing on DIN rail as per IEC 60715, TH35

Mounting iTEMP TMT82
10 Endress+Hauser
4.1.2 Important ambient conditions
• Ambient temperature:
• –40 to +85 °C (–40 to +185 °F), for hazardous areas see Ex documentation
• –50 to +85 °C (–58 to +185 °F), for hazardous areas see Ex documentation; Product
Configurator order code for "Test, certificate, declaration", option "JM" 1)
• –52 to +85 °C (–62 to +185 °F), for hazardous areas see Ex documentation, Product
Configurator order code for "Test, certificate, declaration", option "JN" 1)
• Head transmitter, field mount housing with separate terminal compartment incl. display:
–30 to +85 °C (–22 to +185 °F). At temperatures < –20 °C (–4 °F) the display may react
slowly, Product Configurator, order code for "Field housing", option "R" and "S"
• SIL Mode: –40 to +70 °C (–40 to +158 °F)
• Head transmitter in accordance with climate class C1, DIN rail transmitter in accordance
with B2 as per EN 60654-1
• Condensation as per IEC 60068-2-33 permitted for head transmitter, not permitted for DIN
rail transmitter
• Max. rel. humidity: 95% as per IEC 60068-2-30
• Degree of protection:
• Head transmitter with screw terminals: IP 00, with spring terminals: IP 30. In installed
state, depends on the terminal head or field housing used.
• When installing in field housing TA30x: IP 66/68 (NEMA Type 4x encl.)
• When installing in field mount housing with separate terminal compartment: IP 67,
NEMA Type 4x
• DIN rail device: IP 20
NOTICE
‣When using in hazardous areas, the limit values of the certificates and approvals must be
observed.
4.2 Mounting
A Phillips head screwdriver is required to mount the head transmitter.
NOTICE
Do not overtighten the mounting screws as this could damage the head transmitter.
‣Maximum torque = 1 Nm (¾ pound-feet).
1) If the temperature is below –40 °C (–40 °F), increased failure rates are likely.

iTEMP TMT82 Mounting
Endress+Hauser 11
4.2.1 Mounting the head transmitter
1
2
3
4
5
6
7
9
8
1 2 3 4 5 1234
120 mm
(4.72 in)
120 mm
(4.72 in)
Item A Item B
Item C
A0014269-EN
 4 Head transmitter mounting (three versions)
Procedure for mounting in a terminal head, pos. A:
1. Open the terminal head cover (8) on the terminal head.
2. Guide the connection wires (4) of the insert (3) through the center hole in the head
transmitter (5).
3. Fit the mounting springs (6) on the mounting screws (7).
4. Guide the mounting screws (7) through the side boreholes of the head transmitter and
the insert (3). Then fix both mounting screws with the snap rings (2).
5. Then tighten the head transmitter (5) along with the insert (3) in the terminal head.
6. After wiring, close the terminal head cover (8) tightly again. →  16

Mounting iTEMP TMT82
12 Endress+Hauser
120 mm
(4.72 in)
140 mm
(5.51 in)
21 mm
(0.83 in)
!6.5 mm
(0.25 in)
A0024604
 5 Dimensions of angle bracket for wall mount (complete wall mounting set available as accessory)
Procedure for mounting in a field housing, pos. B:
1. Open the cover (1) of the field housing (4).
2. Guide the mounting screws (2) through the lateral bores in the head transmitter (3).
3. Screw the head transmitter to the field housing.
4. After wiring, close the field housing cover (1) again. →  16
Procedure for mounting on a DIN rail, pos. C:
1. Press the DIN rail clip (4) onto the DIN rail (5) until it engages with a click.
2. Fit the mounting springs on the mounting screws (1) and guide the screws through the
side boreholes of the head transmitter (2). Then fix both mounting screws with the snap
rings (3).
3. Screw the head transmitter (2) onto the DIN rail clip (4).

iTEMP TMT82 Mounting
Endress+Hauser 13
Remotely mounting the field mount housing
1
3
2
25 (0.98)
180
(7.1)
160
(6.3)
!51
(2.01)
M10
10.5
(0.41)
72 (2.8)
72 (2.8)
56
(2.2)
M10
M10
≤50
(1.97)
A0027188
 6 Mounting the field mount housing using special mounting bracket, see chapter 'Accessories'.
Dimensions in mm (in)
1 Mounting with combined wall/pipe mounting bracket
2 Mounting with pipe mounting bracket 2"/V4A
3 Mounting with wall mounting bracket

Mounting iTEMP TMT82
14 Endress+Hauser
Mounting typical of North America
12 3 4 5
6
5
6
A0008520
 7 Head transmitter mounting
Thermometer design with thermocouples or RTD sensors and head transmitter:
1. Fit the thermowell (1) on the process pipe or the container wall. Secure the thermowell
according to the instructions before the process pressure is applied.
2. Fit the necessary neck tube nipples and adapter (3) on the thermowell.
3. Make sure sealing rings are installed if such rings are needed for harsh environmental
conditions or special regulations.
4. Guide the mounting screws (6) through the lateral bores of the head transmitter (5).
5. Position the head transmitter (5) in the terminal head (4) in such a way that the bus
cable (terminals 1 and 2) point to the cable entry.
6. Using a screwdriver, screw down the head transmitter (5) in the terminal head (4).
7. Guide the connection wires of the insert (3) through the lower cable entry of the
terminal head (4) and through the middle hole in the head transmitter (5). Wire the
connection wires up to the transmitter. →  17
8. Screw the terminal head (4), with the integrated and wired head transmitter, onto the
ready-mounted nipple and adapter (3).
NOTICE
The terminal head cover must be secured properly to meet the requirements for
explosion protection.
‣After wiring, securely screw the terminal head cover back on.

iTEMP TMT82 Mounting
Endress+Hauser 15
4.2.2 Mounting the DIN rail transmitter
NOTICE
Wrong orientation
Measurement deviates from the maximum accuracy rating when a thermocouple is connected
and the internal reference junction is used.
‣Mount the device vertically and ensure it is oriented correctly (sensor connection at
bottom / power supply at top)!
1.
2.
3.
1. 3.
A0017821
 8 Mounting the DIN rail transmitter
1. Slide the upper DIN rail clip upwards and the lower clip downwards until they click into
place.
2. Fit the device on the DIN rail from the front.
3. Slide the two DIN rail clips back together until they click into place.
4.3 Post-mounting check
After mounting the device, always run the following final checks:
Device condition and specifications Notes
Is the device undamaged (visual inspection)? -
Do the ambient conditions match the device specification (e.g. ambient temperature,
measuring range, etc.)?
→  10

Electrical connection iTEMP TMT82
16 Endress+Hauser
5 Electrical connection
LCAUTION
‣Switch off the power supply before installing or connecting the device. Not conforming
with this can lead to the destruction of electronic components.
‣Do not occupy the display connection. An incorrect connection can destroy the electronics.
NOTICE
Do not overtighten the screw terminals, as this could damage the transmitter.
‣Maximum torque = 1 Nm (³⁄₄ lbf ft).
5.1 Connection conditions
A Phillips head screwdriver is required to wire the head transmitter with screw terminals. Use
a flat blade screwdriver for the DIN rail housing version with screw terminals. The push-in
terminal version can be wired without any tools.
Proceed as follows to wire a head transmitter mounted in the terminal head or field housing:
1. Open the cable gland and the housing cover on the terminal head or the field housing.
2. Feed the cables through the opening in the cable gland.
3. Connect the cables as shown in →  17. If the head transmitter is fitted with push-in
terminals, pay particular attention to the information in the "Connecting to push-in
terminals" section. →  21
4. Tighten the cable gland again and close the housing cover.
In order to avoid connection errors always follow the instructions in the post-connection check
section before commissioning!
Proceed as follows to wire the transmitter in a field mount housing:
1. Remove the cover clamp.
2. Unscrew the housing cover on the terminal compartment. The terminal compartment is
opposite the electronics module together with the display cover.
3. Open the cable glands of the device.
4. Route the appropriate connecting cables through the openings of the cable glands.
5. Wire the cables as described in the sections: "Connecting the sensor cables" and
"Connecting the transmitter". →  20, →  22

iTEMP TMT82 Electrical connection
Endress+Hauser 17
1.
2.
3.
4.
5.
3 mm
3.
A0042426
On completion of the wiring, screw the screw terminals tightly. Tighten the cable glands
again. Refer to the information provided in the "Ensuring the degree of protection" section.
Screw the housing cover tightly again and fit the cover clamp back on. →  23
In order to avoid connection errors always follow the instructions in the post-connection check
section before commissioning!
5.2 Quick wiring guide
-
+
+
1
-
2
7
6
5
4
3
1
2
7
6
5
4
3
Sensor input 2 Sensor input 1 Bus connection
and supply voltage
Display connection
TC, mV
RTD, 4-, 3- and 2-wireΩ:
RTD, 3- and 2-wireΩ:
TC, mV
white
red
red
white
white
red
red
(black)
(yellow)
(black)
A0015015-EN
 9 Terminal assignment of head transmitter

Electrical connection iTEMP TMT82
18 Endress+Hauser
3
3
3
3
33
1
1
1
1
1
11
4
4
2
2
2
22
RTD
RTD
RTD
Ω
55
66
6
RTD
RTD
6
4
4
4
4
TC Ω Ω
Ω
Ω
+
-
1
2
3
4
5
6
-
+
3
S2
-
+
-
3
4
S1
1
red
(black)
white red red
4-wire
2-wire 3-wire
Bus connection and
supply voltage
Sensor 1
Sensor 2
Sensor 1
Sensor 2
white
red
red
red white
white
red
(black)
white
(yellow)
white
(yellow)
A0042369-EN
 10 Terminal assignment of the field mount housing with separate terminal compartment
1 Fixed connection of the external reference junction, terminals 4, 5 and 6 (Pt100, IEC 60751, class B,
3-wire). It is not possible to connect a second thermocouple (TC) on sensor 2.

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Endress+Hauser 19
-
+
A
TMT82
ON
6
3
7
4
8
5
1/+ 2/- Test
8
7
6
5
6
4
3
1
2
Sensor input 2 Sensor input 1
Supply voltage
4...20 mA
HART
conn.
®
Test
RTD, 3- and 2-wire:Ω RTD, 4-, 3- and 2-wire:Ω
white
red
red
white
white
red
red
TC, mV
TC, mV
(black)
(yellow)
(black)
A0019071-EN
 11 Terminal assignment of the DIN rail device
A To check the output current, an ammeter (DC measurement) can be connected between the "Test" and
"-" terminals.
In the case of the head transmitter in the field mount housing with separate terminal
compartment or the DIN rail version, a shielded cable must be used if the sensor cable length
exceeds 30 m (98.4 ft). The use of shielded sensor cables is generally recommended.
A minimum load of 250 Ω is required in the signal circuit in order to operate the HART®
transmitter via the HART® protocol (terminals 1 and 2).
NOTICE
‣ ESD - electrostatic discharge. Protect the terminals from electrostatic discharge. Failure
to observe this may result in the destruction or malfunction of parts of the electronics.

Electrical connection iTEMP TMT82
20 Endress+Hauser
5.3 Connecting the sensor cables
NOTICE
When connecting 2 sensors ensure that there is no galvanic connection between the
sensors (e.g. caused by sensor elements that are not isolated from the thermowell). The
resulting equalizing currents distort the measurements considerably.
‣The sensors must remain galvanically isolated from one another by connecting each sensor
separately to a transmitter. The transmitter provides sufficient galvanic isolation (> 2 kV
AC) between the input and output.
The following connection combinations are possible when both sensor inputs are assigned:
Sensor input 1
Sensor input 2
RTD or
resistance
transmitter, 2-
wire
RTD or
resistance
transmitter, 3-
wire
RTD or
resistance
transmitter, 4-
wire
Thermocouple
(TC), voltage
transmitter
RTD or resistance
transmitter, 2-wire   - 
RTD or resistance
transmitter, 3-wire   - 
RTD or resistance
transmitter, 4-wire - - - -
Thermocouple (TC),
voltage transmitter    
For field mount housing with sensor input 1 thermocouple: It is not possible to connect a second
thermocouple (TC), RTD, resistance transmitter or voltage transmitter on sensor input 2 as this
input is needed for the external reference junction.