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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