Rosemount 708 Quick Start Guide
Quick Start Guide
00825-0200-4708, Rev DA
Rosemount™ 708 Wireless Acoustic
Transmitter
June 2016
Quick Start Guide
June 2016
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 Reference Manual (document number 00809-0100-4708) for more instruction. This guide and the
manual are available electronically on www.rosemount.com.
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 Product Certifications
section for any restrictions associated with a safe installation.
Before connecting a Field Communicator in an explosive atmosphere, ensure the instruments are
installed in accordance with intrinsically safe field wiring practices.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following conditions:
This device may not cause harmful interference.
This devi ce must accept any interferen ce 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 a potential electrostatic charging
hazard.
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.
NOTICE
Shipping considerations for wireless products
The unit was shipped without the power module installed. Remove the power module prior to shipping the
unit.
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 lo cal requirem ents. Consult current regulations and requirements before shipping.
Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Wireless considerations . . . . . . . . . . . . . . . . . . . . 3
Physical installation . . . . . . . . . . . . . . . . . . . . . . . 4
2
Device network configuration . . . . . . . . . . . . . . 8
Verify operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Product certifications. . . . . . . . . . . . . . . . . . . . . 13
June 2016
1.0 Overview
Figure 1. Rosemount 708 Wireless Acoustic Transmitter
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Quick Start Guide
B
C
A
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
E
2.0 Wireless considerations
2.1 Power up sequence
The Emerson™ Smart Wireless Gateway should be installed and functioning
properly before any wireless devices are powered. Install the power module,
Smart Wireless 701PGNKF into the Rosemount 708 to power the device. This
results in a simpler and faster network installation. Enabling active advertising on
the Gateway ensures new devices are able to join the network faster. For more
information see the Smart Wireless Gateway Manual (document number
00809-0200-4420).
2.2 Antenna position
The antenna is internal to the acoustic transmitter. To achieve optimal range,
orient the transmitter with the waveguide horizontal and the power module
closest to the ground as shown in Figure 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.
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Quick Start Guide
Figure 2. Antenna Position
3.0 Field Communicator connections
The power module needs to be installed in the device for the Field Communicator
to interface with the Rosemount 708. This transmitter uses the green power
module; order model number 701PGNKF. Field communication with this device
requires a HART
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 3 for
instructions on connecting the Field Communicator to the Rosemount 708.
Figure 3. Connection Diagram
®
protocol-based Field Communicator using the correct 708 DD.
June 2016
4.0 Physical installation
The acoustic transmitter is connected directly to the piping being measured.
4.1 Mounting
For high temperature mounting, see page 5.
1. Locate the Rosemount 708 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 4 and Figure 5.
2. The mounting location should be free of foreign matter and corrosion to
ensure good contact between the piping and the 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 green power module (see Figure 6).
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June 2016
Quick Start Guide
5. 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.
Figure 4. Transmitter Alignment
Figure 5. Transmitter Alignment Top View
Figure 6. Power Module Installation
Note
Wireless devices should be powered up in order of proximity from the Smart Wireless
Gateway, beginning with the closest device to the Smart Wireless Gateway. This will result
in faster network formation.
4.2 Mounting in a high temperature application
High temperature mounting hardware should be used when process
temperatures exceed 260 °C (500 °F).
1. Place the foot of the transmitter in between the standoff mounting hardware
plates as shown in Figure 7.
2. Press standoff plates together so plates and transmitter foot are aligned.
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Quick Start Guide
3. Tighten each screw to 90 in-lb (10,2 N-m).
4. Locate the Rosemount 708 and high temperature mounting hardware on a
horizontal section of the piping as close as possible to the equipment to be
monitored. The mounting location should be free of foreign matter and
corrosion to ensure good contact between the piping and the mounting
hardware.
5. Insert the U-bolt through the standoff mounting hardware.
6. Tighten each bolt to 90 in-lb (10,2 N-m) (see Figure 8).
7. If commissioning the device, install the green power module (see Figure 6).
8. 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.
Figure 7. High Temperature Mounting Hardware
June 2016
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