Rosemount™ 1408H
Level Transmitter
Non-Contacting Radar
Quick Start Guide
00825-0100-4480, Rev AD
May 2022
1 About this guide
This Quick Start Guide provides basic guidelines for the Rosemount
1408H Level Transmitter. Refer to the 1408H 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.
Repair, e.g. substitution of components, etc. may jeopardize safety
and is under no circumstances allowed.
WARNING
Process leaks could result in death or serious injury.
Handle the transmitter carefully.
Install and tighten process connectors before applying pressure.
Do not attempt to loosen or remove process connectors while the
transmitter is in service.
2
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 transmitter and process seal may be hot at high process
temperatures. Allow to cool before servicing.
Note
Be careful not to scratch or otherwise damage the PTFE sealing.
3
2 Cleaning the transmitter
Procedure
If needed, clean the wetted parts of the transmitter.
Use a damp cloth and a mild cleaning agent suitable for the media and
wetted parts of the transmitter.
Note
Be careful not to scratch any of the surfaces.
4
3 Installing on a tank
3.1 Mount the Tri Clamp version
Procedure
Place a suitable gasket on top of the tank flange.
1.
2. Lower the transmitter into the nozzle.
3. Tighten the clamp to the recommended torque (see the
manufacturer’s instruction manual).
5
3.2 Mount the dairy coupling (DIN 11851)
Procedure
1.
Place a suitable gasket on top of the tank flange.
2. Lower the transmitter into the nozzle.
3. Tighten the lock nut to the recommended torque (see the
manufacturer’s instruction manual).
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3.3 Mount the VARIVENT® version
Procedure
1.
Mount a suitable O-ring on the adapter.
2. Lower the transmitter into the nozzle.
3. Tighten the clamp to the recommended torque (see the
manufacturer’s instruction manual).
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3.4 Mount on a threaded connection
39 mm
Torque 310 in-lb (35 N-m)
Procedure
1.
Apply lubricating paste on the transmitter thread.
Note
The paste must be approved for the application and
compatible with the elastomers used.
2. Mount the transmitter on the tank.
8
3.4.1 Thread engagement length
A A
Refer to Figure 3-1 for the required thread engagement length at the
customer G1 process connection.
Figure 3-1: Thread Engagement Length
A. 0.35 to 0.63 in. (9 to 16 mm)
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4 Bracket mounting
0.28 (7)
0.43 (11)
1.97
(50)
Ø 0.28 (7)
30°
T30
4.1 Bracket hole pattern
Figure 4-1: Hole Pattern
Dimensions are in inches (millimeters).
4.2 Mount the bracket
Procedure
1. Mount the bracket on the wall/ceiling or other flat surface.
10
2. Ensure the adjustable holder is directed toward the ground.
90°
T30
3. Apply lubricating paste on the transmitter thread.
Note
The paste must be approved for the application and
compatible with the elastomers used.
11
4. Secure the transmitter to the bracket.
46 mm
12
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