Emerson Rosemount 708 User manual

Quick Start Guide
00825-0200-4708, Rev DF
November2023
Rosemount™ 708 Wireless Acoustic
Transmitter

Safety messages
NOTICE
This guide provides basic guidelines for the Rosemount 708. It does not provide instructions
for detailed configuration, diagnostics, maintenance, service, troubleshooting, or
installations. Refer to the Rosemount 708 Wireless Acoustic Transmitter Reference Manual
for more instruction. This guide and the manual are available electronically on Emerson.com.
WARNING
Explosions 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 the Quick Start Guide for any restrictions associated with a safe
installation.
Before connecting a communication device in an explosive atmosphere, ensure the
instruments in the segment are installed in accordance with intrinsically safe or non-
incendive field wiring practices.
WARNING
This device complies with Part 15 of the Federal Communication Commission (FCC)
Rules. Operation is subject to the following conditions:
This device may not cause harmful interference.
This device must accept any interference received, including interference that may cause
undesired operation.
This device must be installed to ensure a minimum antenna separation distance of 8 in. (20
cm) from all persons.
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.
Polymer enclosure has surface resistivity greater than one gigaohm. Care must be taken
during transportation to and from the point of installation to prevent a potential electrostatic
charging hazard.
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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NOTICE
Shipping considerations for wireless products
The unit was shipped to you without the power module installed. Remove the power module
prior to shipping.
Each power module contains one “D” size primary lithium battery. 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 ARD (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.
Contents
Transmitter overview...................................................................................................................5
Installation.................................................................................................................................... 6
Configuration............................................................................................................................. 16
Verifying operation.................................................................................................................... 21
Product certifications................................................................................................................ 26
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1 Transmitter overview
Figure 1-1: Rosemount 708 Wireless Acoustic Transmitter
A
C
B
E
D
A. Power module cover — power module is inside device; unscrew
cap for access
B. Waveguide — acoustic and temperature sensors
C. Electronics cover — cover is sealed and cannot be removed
D. Stainless steel mounting bands — used to connect the acoustic
transmitter to the piping
E. Pipe — the acoustic transmitter is installed directly to the pipe
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2 Installation
2.1 Installation considerations
2.1.1 General installation considerations
The Rosemount 708 Acoustic Wireless Transmitter measures the
level of ultrasonic acoustic noise and waveguide temperature. The
transmitter converts the acoustic and temperature measurements
into output data and alerts.
2.1.2 Wireless considerations
Power-up sequence
Make sure the Emerson Wireless Gateway is installed and functioning
properly before powering any wireless devices. Install the power
module, SmartPower™ Solutions, model number 701PGN Green
Power Module, into the Rosemount 708 Transmitter to power the
device. This results in a simpler and faster network configuration.
Enabling Active Advertising on the Gateway ensures new devices
are able to join the network faster. For more information, see the
Emerson Wireless 1410 Gateway Reference Manual.
Figure 2-1: Power module installation
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Antenna position
The antenna is internal to the acoustic transmitter.
To achieve optimal range, position the transmitter with the
waveguide horizontal and the power module closest to the ground
as shown in Figure 2-2. Good connectivity can also be achieved in
other orientations. The antenna should also be approximately 3 ft. (1
m) from any large structure, building, or conductive surface to allow
for clear communication to other devices. Refer to best practices for
additional information on optimal mounting locations of device.
Figure 2-2: Antenna position
Recommended practices
When mounting the device, consider recommended practices to
achieve the best wireless performance. See Rosemount 708 Wireless
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Acoustic Transmitter Reference Manual for more information on
recommended practices.
Field Communicator connections
The power module needs to be installed in the device for the Field
Communicator to interface with the Rosemount 708 Transmitter.
This transmitter uses the green power module, order model number
701PGNKF. Field communication with this device requires a HART®-
based Field Communicator using the correct Rosemount 708 device
driver (DD). Field Communicator connections are located on the
power module. The power module is keyed and can only be inserted
in one orientation. Refer to Figure 2-3 for instructions on connecting
the Field Communicator to the transmitter.
Figure 2-3: Connection diagram
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2.1.3 Mechanical considerations
Location
When choosing a location and position, consider access to the power
module compartment for easy power module replacement.
2.1.4 Electrical considerations
Electronics cover
WARNING
The electronics cover is sealed and cannot be removed.
Do not attempt to unscrew the cover.
Power module
The Rosemount 708 Transmitter is self-powered. The power module
contains one “D” size primary lithium/thionyl chloride battery. Each
battery contains approximately 0.2 oz. (5.0 g) of lithium.
NOTICE
Under normal conditions, the battery materials are self-
contained and are not reactive as long as the battery and the
power module are maintained.
Take care to prevent thermal, electrical, or mechanical damage.
Protect contacts to prevent premature discharge.
NOTICE
The power module may be damaged if dropped from heights
exceeding 20 ft. (6.1 m).
Use caution when handling the power module.
2.1.5 Environmental considerations
Verify the operating atmosphere of the transmitter is consistent with
the appropriate hazardous locations certification.
Temperature effects
The transmitter will operate within specifications for ambient
temperatures between –40 and 185 °F (–40 and 85 °C ).
Heat from the process is transferred to the transmitter housing.
If the process temperature is high, the ambient temperature will
need to be lower to account for heat transferred to the transmitter
housing. See Table 2-1 for ambient temperature derating. Refer
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to Table 2-2 for High Temperature option (HT01) for ambient
temperature derating.
Table 2-1: Ambient temperature derating
Process temperature Max ambient
°C °F °C °F
260 500 41 106
240 464 45 113
220 428 49 120
200 392 53 127
180 356 57 135
160 320 61 142
140 284 64 147
120 248 58 136
100 212 72 162
85 185 75 167
Table 2-2: Ambient temperature derating - HT01
Process temperature Max ambient
°C °F °C °F
550 1022 41 106
520 968 45 113
490 914 47 117
460 860 49 120
430 806 51 124
400 752 53 127
370 698 56 133
340 644 58 136
310 590 60 140
280 536 62 144
260 500 63 145
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2.1.6 Mounting installation considerations
Procedure
1. Inspect mounting bands periodically and re-tighten if
necessary.
Some loosening may occur after initial installation due to
thermal expansion/contraction.
2. Ensure the waveguide is in direct contact with the pipe.
3. Insulate process piping to minimize ambient temperature
effects (see Figure 2-8).
Insulation thickness over the top of the waveguide foot should
not exceed 1 in. (2.54 cm).
4. For best results, mount the transmitter within 6 in. (15.24 cm)
of the equipment being monitored.
5. The stainless steel mounting bands could be affected by
stress corrosion and potentially fail when in the presence of
chlorides.
6. Install the transmitter such that steam or other high
temperature fluids do not directly impinge the housing of the
device.
7. If installing the device on a steam trap, install the device on
the upstream side of the trap.
2.2 Mount the transmitter
For high temperature mounting, see Mount transmitter in a high
temperature application.
Procedure
1. Locate the Rosemount 708 Transmitter on a horizontal section
of piping as close as possible to the equipment to be
monitored. Align the waveguide of the transmitter as shown
in Figure 2-4.
2. Ensure the mounting location is free of foreign matter and
corrosion to ensure good contact between the piping and
waveguide.
3. Tighten each clamp to 90 in.-lb. (10.2 N-m). Trim the excess
clamp band material to prevent unwanted acoustic noise.
4. If commissioning the device, install the power module (see
Power module).
5. Ensure the power module cover is fully tightened to prevent
moisture ingress.
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The lip of the polymer power module cover should be in
contact with the surface of the polymer enclosure to ensure
a proper seal. Do not over tighten.
Example
Figure 2-4: Transmitter orientation
Figure 2-5: Power module installation
NOTICE
Wireless devices should be powered up in order of proximity from
the Gateway, beginning with the closest device to the Gateway. This
will result in faster network formation.
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2.2.1 Mount transmitter in a high temperature application
Use high temperature mounting hardware when process
temperatures exceed 500 °F (260 °C).
Procedure
1. Place the foot of the transmitter between the standoff
mounting hardware plates as shown in Figure 2-6.
2. Press standoff plates together so plates and transmitter foot
are aligned.
3. Tighten each screw to 90 in.-lb. (10.2 N-m).
4. Locate the Rosemount 708 Transmitter and high temperature
mounting hardware on a horizontal section of the piping as
close as possible to the equipment being monitored.
5. Ensure the mounting location is free of foreign matter and
corrosion to ensure good contact between the piping and
mounting hardware.
6. Insert the U-bolt through the standoff mounting hardware.
7. Tighten each nut to 90 in.-lb. (10 N-m) (see Figure 2-7).
8. If commissioning the device, install the power module (see
Figure 2-5).
9. Ensure the power module cover is fully tightened to prevent
moisture ingress.
The lip of the polymer power module cover should be in
contact with the surface of the polymer enclosure to ensure
a proper seal. Do not over tighten.
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Example
Figure 2-6: High temperature mounting kit: hardware for bracket
mounting
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Figure 2-7: Rosemount 708 Transmitter with high temperature
mounting kit
A
B
A. For pipe sizes ½ to 1¼-in.
B. Bracket mounting
Dimensions are in inches (millimeters).
Figure 2-8: Piping insulation, side view
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3 Configuration
3.1 Safety messages
Instructions and procedures in this section may require special
precautions to ensure the safety of the personnel performing the
operations.
WARNING
Failure to follow these installation guidelines could result in death or
serious injury.
Ensure only qualified personnel perform the installation.
WARNING
Electrical shock could cause death or serious injury.
Use extreme caution when making contact with the leads and
terminals. Device must be installed to ensure a minimum antenna
separation distance of 8 in. (20 cm) from all persons.
3.2 Device configuration
Remove the power module cover and connect to the HART®
communication terminals for configuration.
The Rosemount 708 Acoustic Wireless Transmitter will receive HART
communication from a Field Communicator or AMS Device Manager.
When using a Field Communicator, use the Send key (F2) to
send configuration changes to the transmitter. When using AMS
Device Manager, click Apply to send configuration changes to the
transmitter.
3.2.1 Configure the device using AMS Device Manager
AMS Device Manager is capable of connecting to devices directly,
using a HART® modem, or remotely using the Gateway.
Procedure
•To configure the Rosemount 708 Transmitter, double click (or
right click and select Configure/Setup) on the device icon that
will appear below either the HART modem or Gateway connection
tree.
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3.3 Device network configuration
To communicate with the Gateway (and ultimately the host system),
the transmitter must be configured to communicate with the wireless
network.
Using a Field Communicator or AMS Device Manager, 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 they do
not match, the acoustic transmitter will not communicate with the
network. To obtain the network ID and join key from the Gateway, go
to Systems Settings → Network → Network Settings page on the web
server, shown in Figure 3-1.
Figure 3-1: Gateway Network Settings
3.3.1 Configure the network using AMS Device Manager
Procedure
1. Right click on the acoustic transmitter and select Configure.
2. When the menu opens, select Join Device to Network and
follow the method to enter the network ID and join key.
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3.3.2 Field Communicator
Use the following fast key sequence to change the network ID and
join key in the wireless device.
Function Key sequence Menu items
Join Device to Network 2, 1, 2 Network ID, Set Join Key
3.3.3 Fast key sequences
Table 3-1 lists the fast key sequences for common transmitter
functions.
Table 3-1: Rosemount 708 fast key sequences
Function Key
sequence
Menu items
Device
Information
2, 2, 5 •Tag
•Long Tag
•Descriptor
•Message
•Date
•Country
•SI Unit Control
Guided Setup 2, 1 •Basic Setup
•Join Device to Network
•Configure Update Rates
•Alert Setup
Manual Setup 2, 2 •Wireless
•Sensor
•HART
•Security
•Device Information
•Power
Wireless 2, 2, 1 •Network ID
•Join Device to Network
•Broadcast Information
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3.4 Remove power module
Procedure
•After the device has been configured, remove the power module
and replace the power module cover.
Only insert the power module when the device is ready for
commissioning.
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3.5 HART® menu tree
Figure 3-2: Field Communicator Menu Tree
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