20
57-606 ECLIPSE Model 706 Guided Wave Radar Transmitter
2.4.5 Installing a Twin Flexible Probe
(Models 7y5 and 7y7)
Before installing, ensure that the:
• The model and serial numbers shown on the nameplates of
the ECLIPSE probe and transmitter are identical. For opti-
mal performance (and correlation to the Calibration
Certificate included with all units), transmitters and probes
should be installed as a matched set.
• Probe has adequate room for installation and has unob-
structed entry to the bottom of the vessel.
• Process temperature, pressure, dielectric, and viscosity are
within the probe specifications for the installation. See
Specifications, Section 3.6.
Nozzles:
The 7y5 and 7y7 Twin Flexible 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" (DN80) diameter or larger.
2. Twin Rod flexible probes should be installed such that the
active cable is >1" (25 mm) from metallic objects such as
pipes, ladders, etc.
(A bare tank wall parallel to the probe is acceptable).
2.4.5.1 To install a Model 7y7 standard flexible twin rod
probe:
1. Ensure that the process connection is the correct threaded
or flanged mounting.
2. Ensure that there is at least 1" (25 mm) spacing between
the active probe rod and any part of the tank (walls, still-
well, pipes, support beams, mixer blades, etc.)
The minimum stillwell diameter for Twin Flexible probe
is 3" (DN80).
NOTE: Optional spacers are available to keep the cable centered
within the stillwell. Contact factory for details.
0.50" (13 mm) Ø
1
3
2
4
➀
➁
➅
➅
➂
➃➄
Twin Flexible Probe
with Optional Spacer
Active Rod
Twin Cable Probe
end view
Pipe
∅
Pipe Sch.
Male P/N
Female P/N
3-inch
40
004-0720-001
004-0719-001
4-inch
40
004-0720-002
004-0719-002
3-inch
80
004-0720-003
004-0719-003
4-inch
80
004-0720-004
004-0719-004
Chamber Spacers
