Emerson Rosemount 3408 Manuale utente
Quick Start Guide
00825-0100-4418, Rev AA
September 2022
Rosemount™ 3408 Level Transmitter
Non-Contacting Radar
Contents
About this guide...........................................................................................................................3
Confirm approval type..................................................................................................................5
Mount the process seal antenna...................................................................................................6
Mount the lens antenna............................................................................................................... 8
Mount the ATAP lens antenna.................................................................................................... 10
Rotate the transmitter housing.................................................................................................. 13
Prepare the electrical connections..............................................................................................14
Connect wiring and power up.....................................................................................................17
Configuration.............................................................................................................................22
Quick Start Guide September 2022
2 Emerson.com/Rosemount
1 About this guide
This Quick Start Guide provides basic guidelines for the Rosemount 3408
Level Transmitter. Refer to the 3408 Reference Manual for more
instructions.
1.1 Safety messages
WARNING
Failure to follow safe installation and servicing guidelines could result in
death or serious injury.
Ensure the transmitter is installed by qualified personnel and in accordance
with applicable code of practice.
Use the equipment only as specified in this Quick Start Guide and the
Reference Manual. Failure to do so may impair the protection provided by
the equipment.
For installations in hazardous locations, the transmitter must be installed
according to the Rosemount 3408 Product Certifications document and
System Control Drawing.
Repair, e.g. substitution of components, etc. may jeopardize safety and is
under no circumstances allowed.
WARNING
Explosions could result in death or serious injury.
Verify that the operating atmosphere of the transmitter is consistent with
the appropriate hazardous locations certifications.
Before connecting a handheld communicator in an explosive atmosphere,
ensure the instruments are installed in accordance with intrinsically safe or
non-incendive field wiring practices.
In Explosion-proof/Flameproof and Non-Incendive/Type Ex ec installations,
do not remove the transmitter cover when power is applied to the unit.
The transmitter cover must be fully engaged to meet Explosion-proof/
Flameproof requirements.
September 2022 Quick Start Guide
Quick Start Guide 3
WARNING
Electrical shock could cause death or serious injury.
Ensure the mains power to the transmitter is off and the lines to any other
external power source are disconnected or not powered while wiring the
transmitter.
WARNING
Process leaks could result in death or serious injury.
Ensure that the transmitter is handled carefully. If the process seal is
damaged, gas might escape from the tank.
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 to protecting your system. Restrict physical access by
unauthorized personnel to protect end users’ assets. This is true for all
systems used within the facility.
CAUTION
Hot surfaces
The flange and process seal may be hot at high process temperatures. Allow
to cool before servicing.
Quick Start Guide September 2022
4 Emerson.com/Rosemount
2 Confirm approval type
For hazardous locations transmitters labeled with multiple approval types:
Procedure
Permanently mark the checkbox of the selected approval type.
Figure 2-1: Label with Multiple Approval Types
September 2022 Quick Start Guide
Quick Start Guide 5
3 Mount the process seal antenna
3.1 Mount the flanged version
Procedure
1. Lower the transmitter into the nozzle.
Note
Be careful not to scratch or otherwise damage the PTFE sealing.
Quick Start Guide September 2022
6 Emerson.com/Rosemount
2. Tighten the bolts and nuts (see Table 3-1).
Note
•Re-tighten after 24 hours and again after the first temperature
cycle.
•Check at regular intervals and re-tighten if necessary.
3.2 Torque specifications
The conditions used for the calculation are:
•Standard mating metal flange
•A193 B8M Cl.2 / A4-70 bolt material
•Friction coefficient of μ=0.16
Low strength bolt and non-metallic mating flange may require lower
tightening torque.
Table 3-1: Torque Values for Process Seal Antenna, lb-ft (N-m)
Process connection
size
Process connection rating
ASME B16.5 EN1092-1 JIS B2220
Class 150 Class 300 PN16 PN40 10K 20K
2-in./DN50/50A 29 (40) 52 (70) 26 (35) 29 (40) 18 (25) 37 (50)
3-in./DN80/80A 33 (45) 48 (65) 37 (50) 41 (55) 22 (30) 70 (95)
4-in./DN100/100A 59 (80) 52 (70) 37 (50) 74 (100) 26 (35) 74 (100)
6-in./DN150/150A 66 (90) 66 (90) 74 (100) 136 (185) 74 (100) N/A
September 2022 Quick Start Guide
Quick Start Guide 7
4 Mount the lens antenna
4.1 Mount on NPT threaded connections
Procedure
1. Apply anti-seize paste or PTFE tape on threads according to your site
procedures.
2. Mount the transmitter on the tank.
Example
•(A) Threaded fitting
•(B) Threaded flange
AB
46 mm / 50 mm
Note
Be careful not to scratch or otherwise damage the PTFE sealing.
Quick Start Guide September 2022
8 Emerson.com/Rosemount
4.2 Mount on BSPP (G) threaded connections
Procedure
1. Place a suitable gasket on the tank nozzle.
Example
•(A) Threaded fitting
•(B) Threaded flange
A B
2. Mount the transmitter on the tank.
AB
46 mm / 50 mm
Note
Be careful not to scratch or otherwise damage the PTFE sealing.
September 2022 Quick Start Guide
Quick Start Guide 9
5 Mount the ATAP lens antenna
5.1 Open air installations
The antenna extension must be fitted to the transmitter to comply with
open air requirements.
Figure 5-1: Antenna Extension
5.2 Mount the bracket
Prerequisites
Mount the bracket so that it is not susceptible to vibration.
Procedure
1. Mount the bracket to the pipe/wall.
Example
14 mm
Quick Start Guide September 2022
10 Emerson.com/Rosemount
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