Emerson Rosemount 702 User manual
Quick Start Guide
00825-0200-4702, Rev GE
August 2018
Rosemount™ 702 Wireless Discrete
Transmitter
Wireless considerations
Power up sequence
The Wireless Gateway should be installed and functioning properly before any wireless field devices are powered. Install the Black
Power Module, SmartPower™ Solutions model number 701PBKKF (part number 00753-9220-0001) into the Rosemount 702
Transmitter to power the device. Wireless devices should be powered up 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 installation. Enable Active
Advertising on the Gateway to ensure new devices are able to join the network faster. For more information see the Emerson™
Wireless 1420 Gateway Reference Manual.
Antenna position
The antenna should be positioned vertically, either straight up or straight down, and it should be approximately 3 ft. (1 m) from any
large structure, building, or conductive surface to allow for clear communication to other devices.
Figure 2: Antenna Position
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. Note the conduit entries on the Rosemount 702 Transmitter are
threaded ½–14 NPT.
Figure 3: Conduit Entry
$$
A. Conduit entry
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2 Rosemount 702 Wireless Discrete Transmitter
Field Communicator connections
The power module needs to be installed before the Field Communicator can interface with the transmitter. This transmitter uses
the Black Power Module; Order model number 701PBKKF or part number 00753-9220-0001.
Figure 4: Connection Diagram
COMM
P/N00753-9200-0020
1
2
3
4
CH1 +
CMN
CH2 +
CMN
CH Input Mode:
Dry Contact Only
CH Output Mode:
26VDC Max
100mA Max
The transmitter and all other wireless devices should not be set up until after the Wireless Gateway has been installed and is
functioning properly.
Physical installation
The Rosemount 701 Transmitter can be installed in one of two configurations:
■Direct mount, where the switch is connected directly to the Rosemount 702 Transmitter housing’s conduit entry.
■Remote mount, where the switch is mounted separate from the Rosemount 702 Transmitter housing, then connected to the
Rosemount 702 Transmitter via conduit.
Select the installation sequence that corresponds to the mounting configuration.
Direct mount
Note
Direct mount installation should not be employed when using tubing and connectors such as Swagelok® fittings.
August 2018
Quick Start Guide 3
Figure 5: Direct Mount
A. Rosemount 702 Transmitter
B. Float switch
1. Install the switch according to standard installation practices making sure to use thread sealant on all connections.
2. Attach the Rosemount 702 Transmitter housing to the switch using the threaded conduit entry.
3. Attach the switch wiring to the terminals as indicated on the wiring diagram (see Reference information: wiring switch inputs,
output circuits, and leak sensors on page 0 ).
4. Connect the Black Power Module.
Note
Wireless devices should be powered up in order of proximity from the Smart Wireless Gateway, beginning with the closest
device to the Gateway. This will result in a simpler and faster network installation.
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.
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4 Rosemount 702 Wireless Discrete Transmitter
Remote mount
Figure 6: Remote Mount
A. Rosemount 702 Transmitter
B. Float switch
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 Transmitter.
3. Pull the wiring through the threaded conduit entry of the Rosemount 702 Transmitter.
4. Attach the switch wiring to the terminals as indicated on the wiring diagram (see Reference information: wiring switch inputs,
output circuits, and leak sensors on page 0 ).
5. Connect the black power module.
Note
Wireless devices should be powered up in order of proximity from the Smart Wireless Gateway, beginning with the closest
device to the gateway. This will result in a simpler and faster network installation.
6. Close the housing cover and tighten to safety specification. Always ensure a proper seal so the metal touches metal, but do not
over tighten.
7. 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.
August 2018
Quick Start Guide 5
High gain, 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 7: Rosemount 702 Transmitter with High Gain, Remote Antenna
Install the high gain, remote antenna (WN option)
Find a location where the remote antenna has optimal wireless performance. Ideally this will be 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.
1. Mount the antenna on a 1.5 to 2-in. pipe mast using the supplied mounting equipment.
2. Connect the lightning arrestor directly to the top of the Rosemount 701 Transmitter.
3. Install the grounding lug, lock washer, and nut on top of lightning arrestor.
4. Connect the antenna to the lightning arrestor using the supplied LMR-400 coaxial cable ensuring the drip loop is not closer than
1 ft. (0.3 m) from the lightning arrestor.
5. Use the coaxial sealant to seal each connection between the wireless field device, lightning arrestor, cable, and antenna.
Note
The remote mount antenna kit includes coaxial sealant for weatherproofing the cable connections for the lightning arrestor,
antenna, and Rosemount 702 Transmitter. Coaxial sealant must be applied to guarantee performance of the wireless field
network. See Figure 8 on page 7 for details on how to apply coaxial sealant.
August 2018
6 Rosemount 702 Wireless Discrete Transmitter
Figure 8: 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.
Device network configuration
In order to communicate with the Smart Wireless Gateway, and ultimately the host system, the 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 Rosemount 702 Transmitter will not communicate with the network. The Network ID and Join Key may be
obtained from the Smart Wireless Gateway on the Setup Network Settings page on the web interface, shown in Figure 9 on page
7.
Figure 9: Gateway Network Settings
AMS Wireless Configurator
1. Right click on the Rosemount 702 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.
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.
August 2018
Quick Start Guide 7
Function Fast Key sequence Menu items
Wireless setup 2,2,1 Network ID, Join Device to Network
Verify operation
There are four methods available to verify operation:
■Using the optional local display (LCD)
■Using the Field Communicator
■Using the Wireless Gateway’s integrated web interface
■Using AMS Suite 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.
Local display
Start-up sequence
When the Rosemount 702 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 chosen variables of the periodic display.
During steady state operation, the LCD display gives a periodic display of user chosen variables at the configured wireless update
rate. These 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.
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
Field Communicator
For HART® Wireless transmitter communication, a Rosemount 702 Transmitter DD is required.To obtain the latest DD, visit the
Emerson Easy Upgrade site at: Emerson.com/Device-Install-Kits.
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8 Rosemount 702 Wireless Discrete Transmitter
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
Smart Wireless Gateway
In the Gateway’s integrated web server, navigate to the Explorer page. This page shows whether the device has joined the network
and is communicating properly.
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 13 on page 11) and the sensor configuration (see Table 6 on page 22).
Figure 10: Wireless Gateway Explorer Page
AMS Wireless Configurator
When the device has joined the network, it will appear in AMS Wireless Configurator as illustrated below.
August 2018
Quick Start Guide 9
Figure 11: AMS Wireless Configurator, Device Explorer Screen
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 Smart Wireless Gateway. The Network ID and Join Key in the device must match the
Network ID and Join Key of the Gateway.
1. From the Gateway's integrated web interface, select Setup Network Settings to obtain the Network ID and Join Key (see Figure
12 on page 10).
Figure 12: 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.
August 2018
10 Rosemount 702 Wireless Discrete Transmitter
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