SMAR TT400WH User manual

Warning
III
NOTE
This manual is compatible with version 2.XX, where 2 denote software version and XX software release. The
indication 2.XX means that this manual is compatible with any release of software version 2.
Waiver of responsibility
The contents of this manual abides by the hardware and software used on the current equipment
version. Eventually there may occur divergencies between this manual and the equipment. The
information from this document are periodically reviewed and the necessary or identified corrections
will be included in the following editions. Suggestions for their improvement are welcome.
Warning
For more objectivity and clarity, this manual does not contain all the detailed information on the
product and, in addition, it does not cover every possible mounting, operation or maintenance
cases.
Before installing and utilizing the equipment, check if the model of the acquired equipment complies
with the technical requirements for the application. This checking is the user’s responsibility.
If the user needs more information, or on the event of specific problems not specified or treated in
this manual, the information should be sought from Smar. Furthermore, the user recognizes that the
contents of this manual by no means modify past or present agreements, confirmation or judicial
relationship, in whole or in part.
All of Smar’s obligation result from the purchasing agreement signed between the parties, which
includes the complete and sole valid warranty term. Contractual clauses related to the warranty are
not limited nor extended by virtue of the technical information contained in this manual.
Only qualified personnel are allowed to participate in the activities of mounting, electrical connection,
startup and maintenance of the equipment. Qualified personnel are understood to be the persons
familiar with the mounting, electrical connection, startup and operation of the equipment or other
similar apparatus that are technically fit for their work. Smar provides specific training to instruct and
qualify such professionals. However, each country must comply with the local safety procedures,
legal provisions and regulations for the mounting and operation of electrical installations, as well as
with the laws and regulations on classified areas, such as intrinsic safety, explosion proof, increased
safety and instrumented safety systems, among others.
The user is responsible for the incorrect or inadequate handling of equipments run with pneumatic
or hydraulic pressure or, still, subject to corrosive, aggressive or combustible products, since their
utilization may cause severe bodily harm and/or material damages.
The field equipment referred to in this manual, when acquired for classified or hazardous areas, has
its certification void when having its parts replaced or interchanged without functional and approval
tests by Smar or any of Smar authorized dealers, which are the competent companies for certifying
that the equipment in its entirety meets the applicable standards and regulations. The same is true
when converting the equipment of a communication protocol to another. In this case, it is necessary
sending the equipment to Smar or any of its authorized dealer. Moreover, the certificates are
different and the user is responsible for their correct use.
Always respect the instructions provided in the Manual. Smar is not responsible for any losses
and/or damages resulting from the inadequate use of its equipments. It is the user’s responsibility to
know and apply the safety practices in his country.

TT400 WirelessHARTTM – Operation, Maintenance and Instruction Manual
IV

Table of Contents
V
TABLE OF CONTENTS
INTRODUCTION....................................................................................................................................... VII
INSTALLATION FLOWCHART ............................................................................................................... XIII
SECTION 1 - INSTALLATION ..................................................................................................................1.1
GENERAL................................................................................................................................................................... 1.1
MOUNTING ................................................................................................................................................................ 1.1
ELECTRIC WIRING ................................................................................................................................................... 1.2
INSTALLATION IN HAZARDOUS LOCATIONS........................................................................................................ 1.6
INTRINSICALLY SAFE .............................................................................................................................................. 1.6
SECTION 2 - OPERATION .......................................................................................................................2.1
FUNCTIONAL DESCRIPTION-HARDWARE............................................................................................................. 2.1
TEMPERATURE SENSORS...................................................................................................................................... 2.2
THERMOCOUPLES ..................................................................................................................................................................2.2
THERMORESISTANCES (RTDS).............................................................................................................................................2.3
THE DISPLAY ............................................................................................................................................................ 2.5
MONITORING ............................................................................................................................................................ 2.5
LOCAL ADJUSTMENT............................................................................................................................................... 2.6
WRITING PROTECTION ........................................................................................................................................... 2.7
SECTION 3 - MAINTENANCE ..................................................................................................................3.1
GENERAL................................................................................................................................................................... 3.1
DIAGNOSTICS WITH THE DISPLAY ........................................................................................................................ 3.1
PROBLEMS AND SOLUTIONS ................................................................................................................................. 3.1
DISASSEMBLY PROCEDURE .................................................................................................................................. 3.2
REASSEMBLY PROCEDURE ................................................................................................................................... 3.3
INTERCHANGEABILITY ............................................................................................................................................ 3.5
RETURNING MATERIALS......................................................................................................................................... 3.5
SECTION 4 - TECHNICAL CHARACTERISTICS .....................................................................................4.1
ORDERING CODE..................................................................................................................................................... 4.4
APPENDIX A – SERVICE REQUEST FORM TEMPERATURE TRANSMITTER .................................... A.1
APPENDIX B - BATTERY SAFETY DATASHEET ..................................................................................B.1

TT400 WirelessHARTTM – Operation, Maintenance and Instruction Manual
VI

Introduction
VII
INTRODUCTION
WirelessHART technology overview
The WirelessHART technology is based on a wireless mesh network communication protocol used
in process automation applications. It adds wireless capabilities to the HART protocol, while
maintaining compatibility with existing HART devices, commands and already known and used
tools.
WirelessHART network
Basically, a WirelessHART network, defined in the HART specifications, consists of a host, a
WirelessHART Gateway and one or more field devices and/or WirelessHART adapters. Together
they compose a mesh network where the host and devices can communicate.
Host
The host, usually connected to the control network, is a workstation in which, e.g., can be installed
an Human Machine Interface application, which allows an operator to interact with the process.
Through the WirelessHART Gateway, the host can gather data from devices connected to the
WirelessHART network. The host communicates with the WirelessHART Gateway using a
communication protocol, for example, HSE, H1, Profibus or Modbus.
WirelessHART Gateway
It is a "translator" equipment. Thus it converts data from the host to the WirelessHART protocol,
used by the devices connected to the WirelessHART network, and converts data from the devices to
the host. In general, the WirelessHART Gateway incorporates the features of Network Manager and
Access Point. Roughly, the access point can be understood as the WirelessHART radio installed at
the gateway to communicate with devices connected to the wireless network.
Network Manager
The Network Manager is an application that can be embedded in the WirelessHART Gateway. On a
WirelessHART network is only allowed to have one Network Manager. Among its responsibilities,
the Network Manager distributes network identity (advertisement) publishing its existence, manages
and authenticates the addition (joining) of devices to the network. It also distributes individual
security keys (static or rotating) to the devices to ensure secure communication between it and the
devices. The Network Manager assigns communication band to the devices already connected to

TT400 WirelessHARTTM – Operation, Maintenance and Instruction Manual
VIII
the network that requested services to it, as well as manages the routes between the devices on the
mesh network.
Specifically, about the joining process of a WirelessHART device to the network, the Network
Manager validates the Network ID and the Join Key attributes which are configured in the
WirelessHART Gateway and WirelessHART devices.
The Network ID identifies a WirelessHART network in unique way. It is an unsigned integer attribute
and must be configured on the WirelessHART Gateway and all WirelessHART devices. Considering
a WirelessHART network installed in a plant, the permitted values for the Network ID ranges from 0
(hex 0x0000) to 32767 (0x7FFF hexadecimal).
The Join Key is a security key used to encrypt joining requests from WirelessHART devices that
receive the advertisement with the Network Id identical to theirs. It may be single or each
WirelessHART device may be configured with an individual Join Key. In the first case, the
WirelessHART Gateway and all WirelessHART devices must be configured with the same Join Key.
In the second case, which provides higher communication security level, (a) must be configured in
the WirelessHART Gateway a list with individual Join Keys, i.e., a key for each WirelessHART
device, and (b) you must configure each WirelessHART device with its individual Join Key. The Join
Key is a hexadecimal string of 16 bytes. There is no restriction to the hexadecimal value of each
byte. The table below shows examples of some join keys.
JOIN KEYS
16-BYTES HEXADECIMAL STRING
00000000000000000000000000000000
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
00000000000000000000000000000302
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x02
00000000FFFFFFFF0000000000000000
0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
550000000000000000000000000000AA
0x55, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAA
WirelessHART device
The WirelessHART field device is the device that connects to the process, being able to receive
and/or transmit data on the WirelessHART network. It is a WirelessHART router (repeater) by
nature, i.e., it is able to retransmit messages to/from other devices on the WirelessHART network.
WirelessHART Adapter
It is a bridge-type device, because it is able to provide data of HART + 4 to 20mA field device,
legacy, to the host via WirelessHART. The adapter uses HART FSK standard communication,
wired, to access data from HART field devices. And the adapter also uses the WirelessHART
communication to provide data of the field device to the host. The adapter thus enables a HART
field device to work on WirelessHART network.
We recommend a visit to the HART Communication Foundation website for additional information
about the WirelessHART protocol such as WirelessHART project planning, positioning of devices,
commissioning and verification tools, and practices.
Planning an WirelessHART network
The planning of a WirelessHART network is a task that is very similar to the activities that currently
we perform with conventional wired devices. Furthermore, due to the simplicity of a mesh
WirelessHART network, is exempt, in general, detailed field surveys, which are usually needed
when we plan networks based on other wireless technologies.
Basically, a WirelessHART network involves planning, design, installation and commissioning
phases.
Planning
This phase requires the execution of the steps below:
Scope definition
Clearly define the scope of the network. Answer the question: why do we need the wireless
network? To monitor process variables or to implement a non-critical control? The answer to this
question will facilitate the understanding between the team members responsible for the network

Introduction
IX
and determine one or more process units in the plant. For each process unit, allocate a gateway
with unique and specific Network ID. Outline the main field devices.
Identify potential sources of interference
Are there radio communications or other wireless networks in the plant? What protocols and
frequencies do they use? Use high power? Although unlikely, given the robustness of the radios
used by the WirelessHART technology, prior knowledge of the answers to these questions may
identify potential sources of interference and to indicate the taking of preventive and/or limiting
actions even before installation. For example, you can select a frequency channel as unavailable,
adding it to the black list of frequencies that is under the WirelessHART Network Manager control.
Integration with the host
The gateway connects the WirelessHART field devices to the host system. Plan what devices and
what data are needed. Also, the stations or applications which will process the data have to be
clearly defined. From this set, among the protocols in the system, define which one will be used for
integration with the host and with the existing tools for configuring the devices. After defining the
protocol for integration, the user has to choose the gateway on the market that best meets your
requirements.
Project
In the project phase, it is recommended the adoption of the practices below. Although conservative,
these practices ensure robustness and scalability to the network.
oDefine the Network ID that will be used for all devices in the process unit;
oDefine if the Join Key will be common to all devices or individual and dedicated ;
oDefine the policy to be used for the definition of devices (Long) Tags;
oUse a scale drawing of the process unit;
oPlace the gateway in a strategic position in the process unit ;
oPlan networks with at least five devices;
oInstall at least five devices within the gateway coverage area;
oEnsure that 25 % of the devices are within the gateway coverage area;
oReposition the gateway as needed;
oCheck the coverage area of each device;
oEnsure that each device has three neighbors within its coverage area;

TT400 WirelessHARTTM – Operation, Maintenance and Instruction Manual
X
oPlace the repeaters as needed.
Installation
As mentioned before, WirelessHART devices should be connected to the process and configured
the same way as conventional wired HART devices.
Handheld terminals can be used normally. Just be sure of having it properly uploaded with the latest
DD files of the devices. However, it is known that the WirelessHART devices have characteristics
inherent to the technology. Because of this, it is recommended the adoption of practices mentioned
below for positioning the gateway and devices.
oInstall the gateway and the devices so that their antennas are vertical;
oEnsure that the antennas are at 0.5 m minimum distance of large obstacles or surfaces;
oEnsure that the antennas of gateway and repeaters are 2 m above most obstacles within their
coverage areas;
oIf there are high devices, does not exceed 45 ° viewing angles between them;

Introduction
XI
oMake sure that the gateway is integrated to the host system as planned.
Commissioning
The commissioning of devices and gateway must be considered1.
WirelessHART devices commissioning
a) Ensure that the gateway is installed and powered;
b) Install each device individually. Start with those closest to the gateway, i.e., those that will be
within the coverage area of the gateway;
c) If the device is powered by batteries, check that they have the same characteristics documented
in the device’s operation manual;
d) Power the device up;
e) Use a handheld terminal and configure the device according to the application requirements;
f) Configure the Long Tag of the device;
g) Configure the Network ID;
h) Configure the Join Key;
i) Define and configure the update rate;
j) Command, if necessary, the device connection to the network;
k) Follow the device connection to the network, waiting until it reaches the operational state. The
monitoring can be done from the device2or gateway;
l) Make sure the device is operating to ensure its commissioning. For example, check the value of
PV measured and its update rate.
Gateway commissioning
a) Make sure that the gateway is available to the host system;
b) Check the gateway and make sure it has at least five devices directly connected to it;
c) Check if 25 % of the devices are connected directly to the gateway. If necessary, add repeaters;
The gateway connects the devices to the host system. Thus, check if the data of the devices are
coming to the applications that subscribe them.
1The steps bellow assumes that the Network ID and the Join Key(s) are already configured.
2Refer to the device’s manual to learn procedures for such verification.

TT400 WirelessHARTTM – Operation, Maintenance and Instruction Manual
XII

Installation Flowchart
XIII
Installation Flowchart
Was the transmitter
configured on the bench
to match the application?
Configure the sensor type
(Section 3).
Configure sensor connection
(Section 3).
Configure the engineering unit
(Section 3).
Configure the range measurement
0% and 100%
(Section 3).
Start
No
Yes
Check if the cable glands and electric
terminals are in good conditions and
properly held. Also check if the cover
and plug are air-tight sealed.
Iinstall the transmitter preferably
on weather - protected areas.
Install the transmitter, according
to the application after checking
the best position for LCD and if the
antenna position is pointed up
(Section 4).
Check the area classification and
if the transmitter can be energized.
OK
Configure the damping
(Section 3).
Configure the alarm
(Section 3).
Configure the reading in the LCD
(Section 3).
Simule the mV or Ohm value(s)
of the work range in the sensor(s)
connection terminal(s).
Is the reading
correct?
Consult the manual (Section 4)
- Maintenance.
No
Yes
Configure Network ID and Join Key
for WirelessHART
TM

TT400 WirelessHARTTM – Operation, Maintenance and Instruction Manual
XIV

Section 1
1.1
INSTALLATION
General
The overall accuracy of temperature and other measurements depends on several variables. Although
the transmitter has an outstanding performance, proper installation is essential, in order to maximize its
performance.
Among all factors, which may affect transmitter accuracy, environmental conditions are the most difficult
to control. There are, however, ways of reducing the effects of temperature, humidity and vibration.
Temperature fluctuation effects can be minimized by locating the transmitter in areas protected from ex-
treme environmental changes.
In warm environments, the transmitter should be installed to avoid, as much as possible, direct expo-
sure to the sun. Installation close to lines and vessels subjected to high temperatures should also be
avoided. For temperature measurements, sensors with cooling-neck can be used or the sensor can be
mounted separated from the transmitter housing.
Use of sunshades or heat shields to protect the transmitter from external heat sources should be
considered, if necessary.
Humidity is fatal to electronic circuits. In areas subjected to high relative humidity, the O’Rings for the
electronics cover must be correctly placed. Removal of the electronics cover in the field must be
reduced to the minimum necessary, since each time it is removed, the circuits are exposed to the
humidity. The electronic circuit is protected by a humidity proof coating, but frequent exposures to
humidity may affect the protection provided. It is also important to keep the covers tightened in place.
Every time they are removed, the threads are exposed to corrosion since these parts cannot be
protected by painting. Code-approved sealing methods on conduit entering the transmitter should be
employed.
Measurement error can be decreased by connecting the sensor as close to the transmitter as possible
and using proper wires (see Section 2, Operation).
WARNING
Do not remove the graphite grease from the covers, or they may jam.
WARNING
Random, frequent, or common cause failures must not damage the equipment or result in death or
serious injure, must not harm to the environment or equipment, and must not loss of equipment or
production.
WARNING
Electrical shock can result in serious injury.
Mounting
The transmitter may be mounted according to figure 1.1.
For better visibility, the housing can be rotated by loosening the locking screw (Figure 1.3).
Reach the display and main electronic board by removing the cover with window. This cover can be
locked by the cover locking screw. To release the cover, rotate the locking screw clockwise. See Figure
1.3.

TT400 WirelessHART®- Operation, Maintenance and Instruction Manual
1.2
Figure 1.1 - Dimensional Drawing and Mounting Positions
WARNING
The TT400 WirelessHARTTM should be installed with the antenna positioned upward.
Do not rotate the antenna, because the cable may break.

Installation
1.3
minimum
0.5 m
minimum
1.5 m
1
2
3
4
Notes:
1- Vertical obstacle
2- Floor
3- Minimum 3 neighbour equipment
4- Advised 5 neighboring transmitters
Figure 1.2 – Wiring Diagram for Wireless Transmitter
Battery Module Connection
COVER
LOCK
SCREW
NECK
LOCK
SCREW
COVER
LOCK
SCREW
EXTERNAL
GROUNDING
Figure 1.3 – Terminal Locking Screws

TT400 WirelessHART®- Operation, Maintenance and Instruction Manual
1.4
The equipment comes from the factory with the Battery Module turned off, for safety reasons and
shipping regulations. To turn it on using the front switch, it is necessary to previously connect the
Battery Module connector to the radio board, located on the back of the equipment (Figure 1.4).
Figure 1.4 – Connecting the Battery Module to the Radio Board
The communication ports allow communication with the transmitter. To this end, should be connected to
a HART configurator in the "CN1" and "CN2" communication terminal, which is shown in Figure 1.5.
Local
Adjustment
ON/OFF
Terminals
Communication
Terminals
Figure 1.5 – Transmitter Terminals
The maintenance port allows for local configuration of the equipment. To access it, a HART configurator
must be connected to the communication terminals “CN1” and “CN2“, shown in Figures 1.5 and 1.6.

Installation
1.5
CONFIGURATOR
Figure 1.6 - Wiring Diagram
The sensor should be connected as per Figure 1.7.
WARNING
When operating with two sensors, the sensors cannot be both grounded. At least one must be not
grounded for proper operation of TT400 WirelessHART®.
Figure 1.7 – Sensor Wiring

TT400 WirelessHART®- Operation, Maintenance and Instruction Manual
1.6
Installation in Hazardous Locations
WARNING
Explosions could result in death or serious injury, besides financial damage. Installation of this
transmitter in explosive areas must be carried out in accordance with the local standards and the
protection type adopted. Before continuing the installation make sure the certificate parameters are
in accordance with the classified area where the equipment will be installed.
The instrument modification or parts replacement supplied by other than authorized representative of
Smar is prohibited and will void the certification.
The transmitters are marked with options of the protection type. The certification is valid only when the
protection type is indicated by the user. Once a particular type of protection is selected, any other type
of protection can not be used.
The electronic housing and the sensor installed in hazardous areas must have a minimum of 6 fully
engaged threads. Lock the housing using the locking screw (Figure 1.3).
The cover must be tightened with at least 8 turns to avoid the penetration of humidity or corrosive
gases. The cover must be tightened until it touches the housing. Then, tighten more 1/3 turn (120°) to
guarantee the sealing. Lock the covers using the locking screw (Figure 1.3).
Intrinsically Safe
WARNING
In hazardous areas with intrinsically safe or non-incendive requirements, the circuit entity parameters
and applicable installation procedures must be observed.
The configurator data to guarantee the intrinsically safe parameters are:
Uo(max.) = 5 V
Io(max.) = 100 µA
For free access to the HART bus in the explosive environment, ensure the instruments in the loop are
installed in accordance with intrinsically safe or non-incendive field wiring practices.
It is not recommended to remove the transmitter cover when the power is ON.