705-5100-121 Datasheet, PDF (14/56 Pages) Magnetrol International, Inc. – GuidedWave Radar Level Transmitter

x
z
Active
probe rod
y
{
Inactive
probe rod
}
3.4.2 Installing a Twin Rod Probe
(Models 7xB, 7x5, and 7x7)
Before installing, make sure the:
• Model and serial numbers on the nameplates of the Eclipse
probe and transmitter are identical.
• Probe has adequate headroom for installation and has unob-
structed entry to the bottom of the vessel.
• Process temperature, pressure, dielectric, viscosity, and
media buildup are within the probe specifications for the
installation.
Nozzles:
The 7xB/7x5/7x7 Twin Rod probes may be susceptible to
objects that are in close proximity. The following rules
should be followed for proper application:
1. Nozzles should be 3" (80 mm) diameter or larger.
2. 7xB/7x5/7x7 Twin Rod probes should be installed such that
the active rod is >1" (25 mm) from metallic objects such as
pipes, ladders, etc., (a bare tank wall parallel to the probe is
acceptable).
3.4.2.1 To install a rigid twin rod probe:
x Make sure the process connection is at least 2" NPT or a
flanged mounting.
y Make sure that there is at least 1" (25 mm) spacing between
the active probe rod and any part of the tank (walls, stillwell,
pipes, support beams, mixer blades, etc.). Minimum stillwell
diameter for Twin Rod probe is 3".
z Carefully place the probe into the vessel. Align the gasket
on flanged installations.
|
{ Align the probe process connection with the threaded or
flanged mounting on the vessel.
| For threaded connections, tighten the hex nut of the probe
process connection. For flanged connections, tighten flange
bolts.
} Probe can be stabilized by attaching the inactive probe rod
to vessel.
NOTE: If the transmitter is to be installed at a later time, do not remove
the protective cap from the probe. Do not use sealing com-
pound or TFE tape on probe connection to transmitter as this
connection is sealed by a Viton^® O-ring.
14
57-640 Eclipse Guided Wave Radar Transmitter - FOUNDATION fieldbus^™