Important NoticeElectrical shock could cause death or serious injury. If the sensor is installed
in a high voltage environment and a fault or installation error occurs, highvoltage may be present on the connection terminals or the probe itself.
Safe and secure operation of the temperature sensor can only be guaranteed
if the operating instructions of the used transmitters and all included safety
notes are read, understood and followed. For Endress+Hauser temperaturetransmitters see www.endress.com
Correct use
The manufacturer cannot be held responsible for damage caused by misuseof the unit. The installation conditions and connection values indicated in
the operating instructions must be followed!

Installation Guidelines and Safety instructions

Depending on temperature and pressure operating conditions, the gaskets, thesealing and the applicable torques must be selected by the user.
For further information regarding connections, please refer to the correspondingStandards.
Installation and operation
The unit is constructed using the most up to date production equipment andcomplies with the safety requirements of the local guidelines. However, if it isinstalled incorrectly or misused, certain application dangers can occur. Installation,wiring and maintenance of the unit must only be completed by trained, skilled
personnel who are authorized to do so by the plant operator. The plant operator
must make sure that the measurement system has been correctly wired to theconnection schematics. Procedures indicated in these instructions must be followed.
Returns
The measuring device must be returned if it is need of repair or a factory
calibration, or if the wrong measuring device has been delivered or ordered. Legalspecifications require Endress+Hauser, as an ISO-certified company, to follow
certain procedures when handling products that are in contact with the medium.
To ensure safe, swift and professional device returns, please refer to the procedureand conditions for returning devices provided on the Endress+Hauser website atwww.endress.com/support/return-material

Cautions draw attention to activities or procedures that can lead to persons being
seriously injured, to safety risks or to the destruction of the device if they are notcarried out properly.

Do not disconnect equipment unless power has been switched off or the area
is not hazardous.

Notes draw attention to activities or procedures that can have a direct influenceon operation or trigger an unforeseen device reaction if they are not carried out
properly.

1. Install the unit according to the relevant NEC Code and local regulations.
2. Avoid any spark due to impact, friction and installation. Anti-sparking
wrenches should be utilized.
3. The temperature sensor should be connected to the power supply or otherexternal circuit using the appropriate cable glands and wire entries.
4. For ambient temperature higher than 158 °F, suitable cables, conduit andconductors must be used. Only use approved wire entries.
5. When utilized in dust atmospheres, the connection between the housing,fittings and thermowell should provide a minimum degree of IngressProtection. Liquid/gas sealants should be used. Local regulations need tobe respected.

The accessories for pipe connections and the appropriate gaskets andsealing rings are not supplied with the sensors. These are the customer’sresponsibility.

Safety pictograms and symbols

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 Endress+Hauser reserves the right to change and/or improve the product design andspecifications without notice.

www.addresses.endress.com
Available for all device versions via:
• Internet:
www.endress.com/deviceviewer• Smart phone/tablet:
Endress+Hauser Operations App
www.endress.com/deviceviewer

Endress+Hauser Operations App

Serial number

Quick installation instructions and safety
information.
Detailed technical information can befound in the additional documentation.
RTD thermometer for hygienic and aseptic
applications

Installation Instructions
iTHERM TM402, TM412
Imperial Hygienic Thermometer,
US Style

Order code 00X00-XXXX0XX0XXX
Ser. No.:
X000X000000
TAG No.: XXX000

EA01221T/09/EN/01.17
71371448Electrical connection-wiring diagrams

Installation

Head mounted transmitter iTEMP TMT18x (single input)

Installation locations
U43

Power supply
head transmitter andanalog output 4 to 20 mA,or bus connection

1
≥ 3°

2mA

13-wire4-wire

RTD

RTD

6 (red)5 (red)6 (red)5 (red)2≥ 3°

4 (white)
3 (white)

3 (white)

Head mounted transmitter iTEMP TMT8x (dual input)
1, 2: Perpendicular to flow direction, installed at a minimum angle of 3° to ensure selfdraining
3: On elbows
4: Inclined installation in pipes with a small nominal diameter
U: Immersion lengthSensor input 2Sensor input 1

RTD: 3-wire

RTD: 4- and 3-wire

Bus connection
and supply voltage

blackblack

7
red

6

red

56

For installation proceed as follows:
1. Make sure that the hygienic process fitting and the clamp assembly matchthe maximum specified process pressure.
2. Install and tighten the RTD sensor before applying process pressure.

7greenwhite

4white

3

1+
2-

4
3

Display connection

Head mounted field transmitter iTEMP TMT162 (dual input)
Power supply
field transmitter andanalog output
4 to 20 mA,or bus connection

Sensor 1
343+

S1

362
15+Sensor 2

4S2--++--#Sensor 13-wire
RTD
(red)
(white)2 134-wire
RTD(red)(white)4 3
2 1Sensor 2
RTD(green) 4(black) 5(black) 6

Terminal block mounted

The blocks and transmitters are shown as they will sit inside the heads inreference to the conduit opening. ALWAYS terminate leads to the outside
screw!

Technical Data
Dimensions
Performance Characteristics

See technical Information: www.endress.com

1+5-2