Endress+Hauser iTHERM TrustSens TM372 User manual

Products Solutions Services
Operating Instructions
iTHERM TrustSens TM372
Compact thermometer in US style with self-calibration
HART communication
BA02224T/09/EN/02.22-00
71592469
2022-10-31
Valid as of version
01.00 (device version)


iTHERM TrustSens TM372 HART communication Table of contents
Endress+Hauser 3
Table of contents
1 About this document ................ 4
1.1 Document function ..................... 4
1.2 Symbols .............................. 4
1.3 Documentation ........................ 5
2 Basic safety instructions ............ 7
2.1 Requirements for the personnel ............ 7
2.2 Intended use .......................... 7
2.3 Operation safety ....................... 7
2.4 Product safety ......................... 7
2.5 IT security ............................ 8
3 Incoming acceptance and product
identification ....................... 9
3.1 Incoming acceptance .................... 9
3.2 Product identification .................... 9
3.3 Storage and transport .................. 10
4 Mounting ......................... 11
4.1 Mounting requirements ................. 11
4.2 Mounting the measuring device ........... 11
4.3 Post-mounting check ................... 14
5 Electrical connection .............. 15
5.1 Connecting requirements ................ 15
5.2 Connecting the measuring device .......... 15
5.3 Ensuring the degree of protection .......... 15
5.4 Post-connection check .................. 16
6 Operability ........................ 16
6.1 Overview of operation options ............ 16
6.2 Structure and function of the operating
menu .............................. 17
6.3 Access to the operating menu via an
operating tool ........................ 18
7 System integration ................ 22
7.1 Overview of device description files ......... 22
7.2 Measured variables via HART protocol ...... 22
7.3 Supported HART® commands ............. 23
8 Commissioning .................... 25
8.1 Function check ....................... 25
8.2 Switching on the measuring device ......... 25
8.3 Configuring the measuring device .......... 25
8.4 Creating a calibration report .............. 27
8.5 Protecting settings from unauthorized access .29
8.6 Advanced settings ..................... 30
9 Diagnostics and troubleshooting ... 37
9.1 Troubleshooting ...................... 37
9.2 Diagnostic information via LEDs ........... 37
9.3 Diagnostic information ................. 38
9.4 Overview of diagnostics events ............ 39
9.5 Diagnostic list ........................ 41
9.6 Event logbook ........................ 41
9.7 Firmware history ...................... 41
10 Maintenance ...................... 42
10.1 Cleaning ............................ 42
11 Repair ............................ 43
11.1 Spare parts .......................... 43
11.2 Return .............................. 43
11.3 Disposal ............................ 43
12 Accessories ....................... 44
12.1 Device-specific accessories ............... 44
12.2 Communication-specific accessories ........ 46
12.3 Service-specific accessories ............... 47
12.4 System components .................... 48
13 Technical Data .................... 48
13.1 Input ............................... 48
13.2 Output ............................. 48
13.3 Wiring ............................. 50
13.4 Performance characteristics .............. 50
13.5 Environment ......................... 54
13.6 Mechanical construction ................ 55
13.7 Certificates and approvals ............... 65
14 Operating menu and parameter
description ........................ 67
14.1 Setup menu .......................... 71
14.2 Calibration menu ...................... 72
14.3 Diagnostics menu ..................... 76
14.4 Expert menu ......................... 85

About this document iTHERM TrustSens TM372 HART communication
4 Endress+Hauser
1 About this document
1.1 Document function
These Operating Instructions contain all the information required in the various life cycle
phases of the device: from product identification, incoming acceptance and storage, to
installation, connection, operation and commissioning, through to troubleshooting,
maintenance and disposal.
1.2 Symbols
1.2.1 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.
1.2.2 Electrical symbols
Symbol Meaning
Direct current
Alternating current
Direct current and alternating current
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a
grounding system.
Potential equalization connection (PE: protective earth)
Ground terminals that must be connected to ground prior to establishing any other
connections.
The ground terminals are located on the interior and exterior of the device:
• Interior ground terminal: potential equalization is connected to the supply network.
• Exterior ground terminal: device is connected to the plant grounding system.
1.2.3 Symbols for certain types of information
Symbol Meaning
Permitted
Procedures, processes or actions that are permitted.
Preferred
Procedures, processes or actions that are preferred.
Forbidden
Procedures, processes or actions that are forbidden.

iTHERM TrustSens TM372 HART communication About this document
Endress+Hauser 5
Symbol Meaning
Tip
Indicates additional information.
Reference to documentation
A
Reference to page
Reference to graphic
Notice or individual step to be observed
1.
,
2.
,
3.
… Series of steps
Result of a step
Help in the event of a problem
Visual inspection
1.2.4 Tool symbols
Symbol Meaning
A0011222
Open-ended wrench
1.3 Documentation
For an overview of the scope of the associated Technical Documentation, refer to the
following:
•Device Viewer (www.endress.com/deviceviewer): Enter the serial number from the
nameplate
•Endress+Hauser Operations app: Enter serial number from nameplate or scan
matrix code on nameplate.
1.3.1 Document function
The following documentation may be available depending on the version ordered:
Document type Purpose and content of the document
Technical Information (TI) Planning aid for your device
The document contains all the technical data on the device and provides
an overview of the accessories and other products that can be ordered for
the device.
Brief Operating Instructions (KA) Guide that takes you quickly to the 1st measured value
The Brief Operating Instructions contain all the essential information
from incoming acceptance to initial commissioning.
Operating Instructions (BA) Your reference document
The Operating Instructions contain all the information that is required in
the various phases of the life cycle of the device: from product
identification, incoming acceptance and storage, to mounting,
connection, operation and commissioning through to troubleshooting,
maintenance and disposal.
Description of Device Parameters
(GP)
Reference for your parameters
The document provides a detailed explanation of each individual
parameter. The description is aimed at those who work with the device
over the entire life cycle and perform specific configurations.

About this document iTHERM TrustSens TM372 HART communication
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Document type Purpose and content of the document
Safety Instructions (XA) Depending on the approval, safety instructions for electrical equipment in
hazardous areas are also supplied with the device. The Safety Instructions
are an integral part of the Operating Instructions.
Information on the Safety Instructions (XA) relevant to the device is
provided on the nameplate.
Supplementary device-dependent
documentation (SD/FY)
Always comply strictly with the instructions in the relevant
supplementary documentation. The supplementary documentation is an
integral part of the device documentation.

iTHERM TrustSens TM372 HART communication Basic safety instructions
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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 starting work, read and understand the instructions in the manual and
supplementary documentation as well as the certificates (depending on the
application).
‣Follow instructions and comply with basic conditions.
The operating personnel must fulfill the following requirements:
‣Are instructed and authorized according to the requirements of the task by the facility's
owner-operator.
‣Follow the instructions in this manual.
2.2 Intended use
• The device is a hygienic compact thermometer, which features an automatic self-
calibration function. It is applied for the acquisition and conversion of temperature input
signals for industrial temperature measurement.
• The manufacturer is not liable for damage caused by improper or non-intended use.
2.3 Operation safety
NOTICE
Operation safety
‣Operate the device in proper technical condition and fail-safe condition only.
‣The operator is responsible for interference-free operation of the device.
Conversions to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers.
‣If, despite this, modifications are required, consult with Endress+Hauser.
Repair
Due to its design, the device cannot be repaired.
‣However, it is possible to send the device in for examination.
‣To ensure continued operational safety and reliability, use original spare parts and
accessories from Endress+Hauser only.
2.4 Product safety
This measuring device is designed in accordance with good engineering practice to meet
state-of-the-art safety requirements, has been tested, and left the factory in a condition in
which it is safe to operate.
It meets general safety standards and legal requirements. It also complies with the EU
directives listed in the device-specific EU Declaration of Conformity. The manufacturer
confirms this by affixing the CE mark to the device.

Basic safety instructions iTHERM TrustSens TM372 HART communication
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2.5 IT security
Our warranty is valid only if the product is installed and used as described in the Operating
Instructions. The product is equipped with security mechanisms to protect it against any
inadvertent changes to the settings.
IT security measures, which provide additional protection for the product and associated
data transfer, must be implemented by the operators themselves in line with their security
standards.

iTHERM TrustSens TM372 HART communication Incoming acceptance and product identification
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3 Incoming acceptance and product
identification
3.1 Incoming acceptance
Proceed as follows on receipt of the device:
1. Check whether the packaging is intact.
2. If damage is discovered:
Report all damage immediately to the manufacturer.
3. Do not install damaged components, as the manufacturer cannot otherwise
guarantee the material resistance or compliance with the original safety
requirements, and can also not be held responsible for the consequences that may
result.
4. Compare the scope of delivery against the contents of your order.
5. Remove all the packaging material used for transportation.
6. Do the data on the nameplate match the ordering information on the delivery note?
7. Are the technical documentation and all other necessary documents provided, e.g.
certificates?
If one of the conditions is not satisfied, contact your Sales Center.
3.2 Product identification
The following options are available for identification of the device:
• Nameplate specifications
• Enter the serial number from the nameplate in the 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.
3.2.1 Nameplate
Is this the correct device?
Compare and check the data on the nameplate of the device against the requirements of the
measuring point:
1
6
2
3
4
5
Made in Germany 2022
D-87484 Nesselwang
A0033853
1 Nameplate of the compact thermometer (example)
1 Order code, serial number
2 Supply voltage and current consumption
3 Device revision and firmware version
4 Ambient temperature
5 Approvals with symbols
6 Device TAG name
3.2.2 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

Incoming acceptance and product identification iTHERM TrustSens TM372 HART communication
10 Endress+Hauser
3.2.3 Certificates and approvals
For certificates and approvals valid for the device: see the data on the nameplate
Approval-related data and documents: www.endress.com/deviceviewer → (enter the
serial number)
Hygiene standard
• EHEDG certification, type EL - CLASS I. EHEDG certified/tested process connections
→ 60
• 3-A authorization no. 1144, 3-A Sanitary standard 74-07. Listed process connections
→ 60
• ASME BPE, certificate of conformity can be ordered for indicated options
• FDA-compliant
• All surfaces in contact with the medium are free of animal derived ingredients (ADI/
TSE) and do not contain any materials derived from bovine or animal sources.
Materials in contact with food/product (FCM)
The materials of the thermometer in contact with food/product (FCM) comply with the
following European regulations:
• (EC) No. 1935/2004, Article 3, paragraph 1, Articles 5 and 17 on materials and articles
intended to come into contact with food.
• (EC) No. 2023/2006 on good manufacturing practice for materials and articles intended
to come into contact with food.
• (EU) No. 10/2011 on plastic materials and articles intended to come into contact with
food.
3.3 Storage and transport
Storage temperature: –40 to +85 °C (–40 to +185 °F)
Pack the device for storage and transportation in such a way that it is reliably
protected against impact and external influences. The original packaging provides
optimum protection.
Avoid the following environmental influences during storage and transport:
• Direct sunlight
• Vibration
• Aggressive media

iTHERM TrustSens TM372 HART communication Mounting
Endress+Hauser 11
4 Mounting
4.1 Mounting requirements
Information about the conditions, which have to be existent at the mounting location
for a designated use, such as ambient temperature, degree of protection, climate class,
etc., as well as device dimensions - see section 'Technical Data', → 48
The immersion length of the thermometer can influence the accuracy. If the immersion
length is too small then errors in the measurement are caused by heat conduction via the
process connection. If installing into a pipe then the immersion length should ideally be
half of the pipe diameter. → 11
• Installation possibilities: Pipes, tanks or other plant components
• Orientation: no restrictions. However, self-draining in the process must be guaranteed. If
there is an opening to detect leaks at the process connection, this opening must be at the
lowest possible point.
4.2 Mounting the measuring device
Required tools for mounting in an existing protection tube: Open-end wrench or mounting
socket wrench SW/AF 32
SW/AF 32
12
3
A0048874
2 Mounting process of the compact thermometer
1 Mounting of iTHERM QuickNeck connection to the existing protection tube with iTHERM QuickNeck bottom
part - no tools required
2 Hexagonal head SW/AF 32 for the mounting in an existing protection tube for M24-, G3/8"-thread
3 Protection tube

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U
≥3°
≥ 3°
1
2
34
Lt
Dt dt
A0031007
3 Mounting possibilities in the process
1, 2 Perpendicular to flow direction, installed at a min. angle of 3° to ensure self-draining
3 On elbows
4 Inclined installation in pipes with a small nominal diameter
U Immersion length
The requirements of the EHEDG and the 3-A Sanitary Standard must be adhered to.
Installation instructions EHEDG/cleanability: Lt ≤ (Dt-dt)
Installation instructions 3-A/cleanability: Lt ≤ 2(Dt-dt)
In the case of pipes with a small nominal diameter, it is advisable for the tip of the
thermometer to project well into the process so that it extends past the pipe axis.
Installation at an angle (4) could be another solution. When determining the immersion
length or installation depth all the parameters of the thermometer and of the medium to
be measured must be taken into account (e.g. flow velocity, process pressure).
When connecting the device with the protection tube: only turn the hexagonal
spanner flat on the bottom of the housing.
1
A0048432
4 Process connections for thermometer installation in pipes with small nominal diameters
1 Elbow thermowell for weld-in as per DIN 11865 / ASME BPE 2012

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ABC
9
1
4
2
5
3
8
6
7
A0046716
5 Detailed installation instructions for hygiene-compliant installation (depends on the version ordered)
A Varivent process connection for VARINLINE housing
1 Sensor with Varivent connection
2 Counterpart connection
3 O-ring
B Clamp according to ISO 2852
4 Molded seal
5 Counterpart connection
C Process connection Liquiphant-M G1", horizontal installation
6 Weld-in adapter
7 Vessel wall
8 O-ring
9 Thrust collar
NOTICE
The following actions must be taken if a sealing ring (O-ring) or seal fails:
‣The thermometer must be removed.
‣The thread and the O-ring joint/sealing surface must be cleaned.
‣The sealing ring or seal must be replaced.
‣CIP must be performed after installation.
The counterpieces for the process connections and the seals or sealing rings are not
included in the scope of supply for the thermometer. Liquiphant M weld-in adapters with
associated seal kits are available as accessories. → 44
In the case of weld-in connections, exercise the necessary degree of care when performing
the welding work on the process side:
1. Use suitable welding material.
2. Flush-weld or weld with welding radius ≥ 3.2 mm (0.13 in).
3. Avoid crevices, folds or gaps.
4. Ensure the surface is honed and polished, Ra ≤ 0.76 µm (30 µin).
1. As a general rule, the thermometers should be installed in such a way that does not
impact their ability to be cleaned (the requirements of the 3-A Sanitary Standard
must be observed).
2. The Varivent® and Liquiphant-M weld-in adapter and Ingold (+ weld-in adapter)
connections enable flush-mounted installation.

iTHERM TrustSens TM372 HART communication Electrical connection
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5 Electrical connection
5.1 Connecting requirements
According to the 3-A Sanitary Standard and EHEDG electrical connecting cables must
be smooth, corrosion-resistant and easy to clean.
5.2 Connecting the measuring device
NOTICE
To prevent damage to the device
‣To prevent any kind of damage from the device electronics, leave the pins 2 and 4
unconnected. They are reserved for the connection of the configuration cable.
‣Do not tighten the M12 plug too much, in order to prevent damage to the device.
M12x1
1
12...30 VDC
(4...20 mA)
3
0 V
(4...20 mA)
4
2
AB
1 (BN) +
2 (WH) nc
3 (BU) -
4 (BK) nc
1.
2.
A0028623
6 Cable plug M12x1 and PIN assignment of the connection socket at the device
If voltage supply is connected correctly and the measuring device is operational, the LED is
illuminated green.
5.3 Ensuring the degree of protection
The specified degree of proctection is ensured when the M12x1 cable plug is tightened. In
order to reach IP69 degree of protection, appropriate cord sets with straight or angle plugs
are available as accessories.

Operability iTHERM TrustSens TM372 HART communication
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5.4 Post-connection check
Is the device or cable undamaged (visual check)?
Do the cables have adequate strain relief?
Does the supply voltage match the specifications on the nameplate?
6 Operability
6.1 Overview of operation options
2 3
14 5
A0031089
7 Operating options of the device
1 Installed iTHERM compact thermometer with HART communication protocol
2 RIA15 loop powered process display - It is integrated in the current loop and displays the measuring signal or
HART process variables in digital form. The process display unit does not require an external power supply. It
is powered directly from the current loop.
3 Active barrier RN42 – The active barrier is used for transmission and galvanic isolation of 4 to 20 mA/HART
signals and supplying loop powered transmitters. The universal power supply works with an input supply
voltage of 19.20 to 253 V DC/AC, 50/60 Hz, which means that it can be used in all international power grids.
4 Commubox FXA195 for intrinsically safe HART communication with FieldCare via the USB interface.
5 FieldCare is a FDT-based plant asset management tool from Endress+Hauser, more details see section
'accessories'. The acquired self-calibration data is stored in the device (1) and can be read using FieldCare.
This also enables an auditable calibration certificate to be created and printed.

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6.2 Structure and function of the operating menu
6.2.1 Structure of the operating menu
...
Expert
System
Communication
Operating menu for experts
Setup Device tag
Diagnostics
Operating menu for operators and maintenances
Maintenance
Expert
Output
Unit
4 mA value
20 mA value
Actual diagnostics
Operating time
Diagnostic list
Actual diagnostics count
Enter access code
Unit
4 mA value
HART configuration
HART info
HART output
Device type
Assigncurrentoutput(PV)
Event logbook
Device information
Simulation
Previous diagnostics 1
Device tag
Min/max values
Sensor value
Measured values
Sensor min v.
Device tag
Define software write protection code
Administration
Operation
Previous diagnostics 1
Loop check configuration Loop check config.
Failure mode
Calibration
Number of self calibrations
Deviation
Limits
Interval monitoring
Self calibration monitoring
Stored self calibration points
Adjustment
Calibration report
...
Diagnostic simulation
Diagnostic settings
Access status tooling
Locking status
Lower warning value
Diagnostic behavior
Heartbeat
Heartbeat verification
General
Additional
functions
Compare Datasets
Save/Restore
About
A0048654

Operability iTHERM TrustSens TM372 HART communication
18 Endress+Hauser
Submenus and user roles
Certain parts of the menu are assigned to certain user roles. Each user role corresponds to
typical tasks within the lifecycle of the device.
User role Typical tasks Menu Content/meaning
Maintenance
Operator
Commissioning:
• Configuration of the measurement.
• Configuration of data processing (Measurement
range, etc.).
Reading measured values.
Calibration:
• Configuration of the warning and alarm limit values
as well as interval monitoring.
• Configuration and creation of a calibration report
(wizard).
"Setup"
"Calibration"
Contains all parameters for commissioning and
calibration:
•Setup parameters
Once values have been set for these parameters, the
measurement should generally be completely
configured.
•Calibration parameters
Contains all information and parameters for the self-
calibration, including a wizard for creating a
calibration report. This wizard is available in the
online parameterization.
Fault elimination:
• Diagnosing and eliminating process errors.
• Interpretation of device error messages and
correcting associated errors.
"Diagnostics" Contains all parameters for detecting and analyzing
errors:
•Diagnostic list
Contains up to 3 currently pending diagnostic
messages.
•Event logbook
Contains the last 5 diagnostic messages (no longer
pending).
•"Device information" submenu
Contains information for identifying the device.
•"Measured values" submenu
Contains all current measured values.
•"Simulation" submenu
Is used to simulate measured values or output values.
•Diagnostic settings
Configuration of diagnostic behavior and status
signal according to NE107
Heartbeat:
Creation of a Heartbeat report (wizard)
"Heartbeat" Contains a wizard for creating a calibration report. This
wizard is available in the online parametrization.
Expert Tasks that require detailed knowledge of the function
of the device:
• Commissioning measurements under difficult
conditions.
• Optimal adaptation of the measurement to difficult
conditions.
• Detailed configuration of the communication
interface.
• Error diagnostics in difficult cases.
"Expert" Contains all parameters of the device (including those
that are already in one of the other menus). The
structure of this menu is based on the function blocks
of the device:
•"System" submenu
Contains all higher-order device parameters that do
not pertain either to measurement or the measured
value communication.
•"Output" submenu
Contains all parameters for configuring the analog
current output and the loop check.
•"Communication" submenu
Contains all parameters for configuring the digital
communication interface.
6.3 Access to the operating menu via an operating tool
6.3.1 FieldCare
Function scope
FDT/DTM-based plant asset management tool from Endress+Hauser. It can configure all
smart field units in a system and help you manage them. By using the status information,
it is also a simple but effective way of checking their status and condition. Access takes
place via the HART protocol or CDI (= Endress+Hauser Common Data Interface).

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Typical functions:
• Configuring parameters of the device
• Loading and saving device data (upload/download)
• Documentation of the measuring point
For iTHERM TrustSens thermometers, FieldCare provides convenient access to
automatically created self-calibration reports.
For details, see Operating Instructions BA00027S/04 and BA00065S/04 in the
download area on www.endress.com.
Source for device description files
See data → 22
Establishing a connection
As example: via HART modem Commubox FXA191 (RS232) or FXA195 (USB)
1. Make sure to update the DTM library for all connected devices (e.g. FXA19x, iTHERM
TrustSens TM371).
2. Start FieldCare and create a project.
3. Go to View --> Network: Right-click on Host PC Add Device...
The Add New Device window opens.
4. Select the HART Communication option from the list and press OK to confirm.
5. Double-click on HART Communication DTM instance.
Check the Serial Interface port for the correct modem and press OK to confirm.
6. Right-click on HART Communication and select the Add Device... option in the
context menu that opens.
7. Select the desired device from the list and press OK to confirm.
The device appears in the network list.
8. Right-click on this device and select the Connect option in the context menu that
opens.
The CommDTM appears in green color.
9. Double-click on the device in the network list to establish the online connection to
the device.
The online parameterization is available.

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20 Endress+Hauser
User interface
13
2
6
5
4
A0048541
8 User interface with device information via HART®-communication
1 Device tag and device name
2 Status area for the status signal
3 Measured values with general device information: PV, output current, percent of range
4 Helping area/additional information
5 Display and input area
6 Navigation area with operating menu structure
6.3.2 DeviceCare
Function scope
DeviceCare is a free configuration tool for Endress+Hauser devices. It supports devices with
the following protocols, provided a suitable device driver (DTM) is installed: HART,
PROFIBUS, FOUNDATION Fieldbus, Ethernet/IP, Modbus, CDI, ISS, IPC and PCP. The tool is
aimed at customers without a digital network in plants and workshops as well as Endress
+Hauser service technicians. The devices can be connected directly via a modem (point-to-
point) or a bus system. DeviceCare is fast, easy and intuitive to use. It can run on a PC,
laptop or tablet with a Windows operating system.
Source for device description files
See data → 22
6.3.3 Field Xpert
Function scope
Field Xpert is an industrial PDA (personal digital assistant) with integrated touchscreen for
commissioning and maintaining field devices in explosion hazardous and non-hazardous
areas. It allows efficient configuration of FOUNDATION fieldbus, HART and WirelessHART
devices.
Source for device description files
See data → 22
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