Emerson Rosemount 702 User manual

Quick Start Guide
00825-0200-4702, Rev HE
July2023
Rosemount™ 702 Wireless Discrete
Transmitter

Safety messages
Failure to follow these installation guidelines could result in death or serious injury. Only
qualified personnel should perform the installation.
WARNING
Explosion hazard that could result in death or serious injury.
Installation of this transmitter in an explosive environment must be in accordance with the
appropriate local, national, and international standards, codes, and practices. Review the
approvals section of this manual for any restrictions associated with a safe installation.
Before connecting a handheld communicator in an explosive atmosphere, ensure that the
instruments are installed in accordance with intrinsically safe or non-incendive field wiring
practices.
Magnetic hazard that can result in death or serious injury
This device contains magnets which could be harmful to pacemaker wearers.
Electrostatic hazard that can result in death or serious injury
Avoid contact with the leads and terminals. High voltage that may be present on leads can
cause electrical shock.
The power module may be replaced in a hazardous area. The power module has surface
resistivity greater than one gigaohm and must be properly installed in the wireless device
enclosure. Care must be taken during transportation to and from the point of installation to
prevent electrostatic charge build-up.
The polymer enclosure has surface resistivity greater than one gigaohm and must be
properly installed in the wireless device enclosure. Care must be taken during transportation
to and from the point of installation to prevent electrostatic charge build-up.
NOTICE
Shipping considerations for wireless products.
The unit was shipped to you without the power module installed. Remove the power module
prior to any re-shipping.
Primary lithium batteries are regulated in transportation by the U. S. Department of
Transportation, and are also covered by IATA (International Air Transport Association), ICAO
(International Civil Aviation Organization), and ADR (European Ground Transportation of
Dangerous Goods). It is the responsibility of the shipper to ensure compliance with these or
any other local requirements. Consult current regulations and requirements before shipping.
WARNING
Physical access
Unauthorized personnel may potentially cause significant damage to and/or
misconfiguration of end users’ equipment. This could be intentional or unintentional and
needs to be protected against.
Physical security is an important part of any security program and fundamental in protecting
your system. Restrict physical access by unauthorized personnel to protect end users’ assets.
This is true for all systems used within the facility.
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Contents
About this guide...........................................................................................................................5
Wireless considerations.............................................................................................................. 6
Mounting the transmitter with a strap......................................................................................9
Device network configuration.................................................................................................. 15
Verify operation..........................................................................................................................17
Reference information: wiring switch inputs, output circuits, and leak sensors...............21
Safety shower and eye wash monitoring................................................................................44
Product certification.................................................................................................................. 46
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1 About this guide
This guide provides basic guidelines for the Rosemount 702 Wireless
Discrete Transmitter. It does not provide instructions for detailed
configuration, diagnostics, maintenance, service, troubleshooting, or
installations. Refer to the Rosemount 702 Reference Manual for more
instruction. This guide and the manual are available electronically on
Emerson.com/Rosemount.
Model number Functionality Manual
702DX32/42 Two channel discrete I/O Rosemount 702 Reference
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nVent™ RAYCHEM liquid
hydrocarbon leak
detection
Rosemount 702 Reference
Manual
702DX52 Discrete Transmitter for
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Rosemount 702 Wireless
Discrete Transmitter for
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Manual
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2 Wireless considerations
2.1 Power up sequence
Verify the Wireless Gateway is installed and functioning properly
before any wireless field devices are powered. Install the Power
Module, SmartPower™ Solutions model number 701PBKKF into the
Rosemount 702 Wireless Discrete Transmitter to power the device.
Power up wireless devices in order of proximity from the Gateway,
beginning with the closest device, then working outward from the
Gateway. This results in a simpler and faster network formation.
Enable Active Advertising on the Gateway to ensure new devices are
able to join the network faster.
2.2 Antenna position
Position the antenna vertically, either straight up or straight down,
and approximately 3 ft. (1 m) from any large structure, building, or
conductive surface to allow for clear communication to other devices.
Figure 2-1: Antenna Position
2.3 Conduit entry
Upon installation, ensure each conduit entry is either sealed with
a conduit plug using approved thread sealant, or has an installed
conduit fitting or cable gland with appropriate threaded sealant.
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Note
The conduit entries are threaded ½–14 NPT.
Figure 2-2: Conduit Entry
AA
A. Conduit entry
2.4 Field Communicator connections
The power module must be installed before the Field Communicator
can interface with the Rosemount 702 Wireless Discrete Transmitter.
For HART® Wireless Transmitter communication via a Field
Communicator, a Rosemount 702 Wireless Device Dashboard (DD)
is required. To obtain the latest DD, visit the Field Communicator
System Software and Device Description site at: Emerson.com/Field-
Communicator. This transmitter uses the Black Power Module; Order
model number 701PBKKF.
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Figure 2-3: Connection Diagram
$&%1 2 3
4 5 6
7 8
0
9
A. Communication terminals
B. Handheld communicator
C. HART modem
After the Wireless Gateway has been installed and is functioning
properly, set up the transmitter and all other wireless devices.
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3 Mounting the transmitter with a strap
3.1 Direct mount installation
Note
Do not employ direct mount installation when using tubing and
connectors such as Swagelok® fittings.
Figure 3-1: Direct Mount
A. Rosemount 702 Wireless Discrete Transmitter
B. Float switch
Procedure
1. Install the switch according to standard installation practices
making sure to use thread sealant on all connections.
2. Using the threaded conduit entry, attach the Rosemount 702
housing to the switch.
3. Referring to the wiring diagram (see Reference information:
wiring switch inputs, output circuits, and leak sensors), attach
the switch wiring to the terminals.
4. Connect the Power Module.
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Note
Wireless devices should be powered up in order of proximity
from the Wireless Gateway, beginning with the closest device
to the Gateway. This will result in a simpler and faster network
formation.
5. Close the housing cover and tighten to safety specification.
Always ensure a proper seal so the metal touches metal, but
do not over tighten.
6. Position antenna vertically, either straight up or straight down.
The antenna should be approximately 3 ft. (0.91 m) from any
large structures or buildings, to allow clear communication to
other devices.
3.2 Remote mount installation
Figure 3-2: Remote Mount
A. Rosemount 702 Wireless Discrete Transmitter
B. Float switch
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Procedure
1. Install the switch according to standard installation practices
making sure to use thread sealant on all connections.
2. Run wiring (and conduit if necessary) from the switch to the
Rosemount 702 Wireless Discrete Transmitter.
3. Pull the wiring through the threaded conduit entry of the
transmitter.
4. Referring to the wiring diagram (see Reference information:
wiring switch inputs, output circuits, and leak sensors), attach
the switch wiring to the terminals.
5. Connect the power module.
Note
Power up the wireless devices in order of proximity from
the Wireless Gateway, beginning with the closest device to
the gateway. This will result in a simpler and faster network
formation.
Note
Always ensure a proper seal so the metal touches metal, but do not
overtighten.
6. Close the housing cover and tighten to safety specification.
7. Position antenna vertically, either straight up or straight down.
Position the antenna approximately 3 ft. (0.91 m) from any
large structures or buildings to allow clear communication
with other devices.
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A
A. 2″ U-bolt for pipe fitting
3.3 Remote antenna (optional)
The high-gain remote antenna options provide flexibility for
mounting the device based on wireless connectivity, lightning
protection, and current work practices.
Figure 3-3: Rosemount 702 Wireless Discrete Transmitter with
Remote Antenna
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3.3.1 Remote antenna installation (WN/WJ option)
Prerequisites
Find a location where the remote antenna has optimal wireless
performance. In most instances, this is 15–25 ft. (4.6–7.6 m) above
the ground or 6 ft. (2 m) above obstructions or major infrastructure.
WARNING
When installing remote mount antennas for the transmitter, always
use established safety procedures to avoid falling or contact with
high-power electrical lines.
Install remote antenna components for the transmitter in compliance
with local and national electrical codes and use best practices for
lightning protection.
Before installing, consult with the local area electrical inspector,
electrical officer, and work area supervisor.
The transmitter remote antenna option is specifically engineered to
provide installation flexibility while optimizing wireless performance
and local spectrum approvals. To maintain wireless performance and
avoid non-compliance with spectrum regulations, do not change the
length of cable or the antenna type.
If the supplied remote mount antenna kit is not installed per these
instructions, Emerson is not responsible for wireless performance or
non-compliance with spectrum regulations.
Procedure
1. Mount the antenna on a 1.5–2 in. (3.81–5.08 cm) pipe mast
using the supplied mounting equipment.
2. Connect the lightning arrestor directly to the top of the
Rosemount 702 Wireless Discrete Transmitter.
3. Install the grounding lug, lock washer, and nut on top of
lightning arrestor.
Note
When connecting the antenna to the lightning arrestor, ensure the
drip loop is not closer than 1 ft. (0.3 m) from the lightning arrestor.
4. Using the supplied LMR-400 coaxial cable, connect the
antenna to the lightning arrestor.
5. Use the coaxial sealant to seal each connection between the
wireless field device, lightning arrestor, cable, and antenna.
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Note
The remote mount antenna kit includes coaxial sealant for
weatherproofing the cable connections for the lightning
arrestor, antenna, and Rosemount 702. Coaxial sealant must
be applied to guarantee performance of the wireless field
network. See Figure 3-4 for details on how to apply coaxial
sealant.
Figure 3-4: Applying Coaxial Sealant to Cable Connections
6. Ensure the mounting mast and lightning arrestor are
grounded according to local/national electrical code.
Any spare lengths of coaxial cable should be placed in 12-in.
(0.3 m) coils.
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4 Device network configuration
To communicate with the Wireless Gateway, and ultimately the host
system, the Rosemount 702 Wireless Discrete Transmitter must be
configured to communicate with the wireless network. This step is
the wireless equivalent of connecting wires from a transmitter to the
information system. Using a Field Communicator or AMS Wireless
Configurator, enter the Network ID and Join Key so they match the
Network ID and Join Key of the Gateway and other devices in the
network. If the Network ID and Join Key do not match that of the
Gateway, the transmitter will not communicate with the network. The
Network ID and Join Key may be obtained from the Wireless Gateway
on the Setup Network Settings page on the web interface, shown in
Figure 4-1.
Figure 4-1: Gateway Network Settings
4.1 AMS Wireless Configurator
Procedure
1. Right click on the Rosemount 702 Wireless Discrete
Transmitter.
2. Select Configure.
3. When the menu opens, select Join Device to Network.
4. Follow the method to enter the Network ID and Join Key.
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4.2 Field Communicator
The Network ID and Join Key may be changed in the wireless device
by using the following Fast Key sequence. Set both Network ID and
Join Key.
Function Fast Key sequence Menu items
Wireless setup 2,2,1 Network ID, Join Device to
Network
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5 Verify operation
There are four methods available to verify operation:
•Using the Local display
•Using the Field Communicator
•Using the Wireless Gateway
•Using AMS Wireless Configurator
If the device was configured with the Network ID and Join Key, and
sufficient time has passed, the transmitter will be connected to the
network.
5.1 Local display
5.1.1 Start-up sequence
When the Rosemount 702 Wireless Discrete Transmitter is first
powered up, the LCD display will display a sequence of screens: All
Segments On, Device Identification, Device Tag, and then the user-
selected variables of the periodic display.
During steady-state operation, the LCD display gives a periodic
display of user-selected variables at the configured wireless update
rate. The variables can be selected from a list of six:
•Channel 1 State
•Channel 1 Count
•Channel 2 State
•Channel 2 Count
•Electronics Temperature
•Supply Voltage
Refer to the Rosemount 702 Reference Manual for error codes and
other LCD display messages. The chevron-shaped status bar at the
top of the screen indicates the progress of the network join process.
When the status bar is filled, the device is successfully connected to
the wireless network.
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Searching for
network
Joining network Connected with
limited bandwidth
Connected

N E T w K
S R C H N G

n e t w k
N E G O T

n e t w k
L I M -O P

n e t w k
O K
5.2 Field Communicator
For HART® Wireless transmitter communication, a Rosemount 702
Wireless Discrete Transmitter DD is required.To obtain the latest DD,
visit the Emerson Easy Upgrade site at: Emerson.com/Device-Install-
Kits.
Function Key sequence Menu items
Communications 3, 3 Join Status, Wireless
Mode, Join Mode,
Number of Available
Neighbors, Number of
Advertisements Heard,
Number of Join
Attempts
5.3 Wireless Gateway
Procedure
In the Gateway’s integrated web server, navigate to the user
interface page. This page shows if the device joined the network
and is communicating properly. Refer to Emerson Wireless Gateway
Reference Manual.
Note
It may take several minutes for the device to join the network.
Note
If the device joins the network and immediately has an alarm
present, it is likely caused by the sensor configuration. Check the
sensor wiring (see Figure 6-1) and the sensor configuration (see Table
6-7).
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Figure 5-1: Wireless Gateway Explorer Page
5.4 AMS Wireless Configurator
When the device has joined the network, it will appear in AMS
Wireless Configurator as illustrated below.
Figure 5-2: AMS Wireless Configurator, Device Explorer Screen
5.5 Troubleshooting
If the device is not joined to the network after power up, verify the
correct configuration of the Network ID and Join Key, and that Active
Advertising has been enabled on the Wireless Gateway. The Network
ID and Join Key in the device must match the Network ID and Join Key
of the Gateway.
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Procedure
1. From the Gateway's integrated web interface, select Setup
Network Settings to obtain the Network ID and Join Key (see
Figure 5-3).
Figure 5-3: Gateway Network Settings
2. To change the Network ID and Join Key in the wireless device,
use a Field Communicator and enter the following Fast Key
sequence.
Function Fast Key sequence Menu items
Wireless 2, 1, 1 Join Device to
Network
3. Follow the on-screen prompts.
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