705-5100-111 Datasheet, PDF (10/28 Pages) Magnetrol International, Inc. – Eclipse® Enhanced Model 705 Guided Wave Radar Level Transmitter

REPLACEMENT OF DISPLACER TRANSMITTER
Eclipse has proven to be the ideal replacement for exist-
ing torque tube transmitters. In numerous applications
around the world, customers have found Eclipse Guided
Wave Radar superior to torque tube transmitters:
• Cost:
A new Eclipse costs only slightly more than rebuilding
an aging torque tube.
• Installation:
No field calibration is necessary; it can be configured
in minutes with no level movement. Factory pre-con-
figuration is available.
• Performance:
Eclipse is not affected by changes in specific gravity or
dielectric.
• Ease of replacement:
Proprietary flanges are offered so existing chamber/
cages can be used.
In order to match the proper Eclipse transmitter with the
proper external cage, consider the following:
• Type of application:
Use the applicable GWR probe, see pages 16 to 27.
• Overfill proof:
“Overfill” occurs when the level rises above the maxi-
mum range of operation. Radar based probes may pro-
vide erroneous output in this zone unless an optimal
design is used. Eclipse GWR overfill probes without
top transition zones (e.g., 7xG, 7xR, 7xD, 7xT) are
always safe to use. In cases where the application
demands a different probe type, other selections can
be considered and the recommended installation pre-
cautions should be followed.
• Min cage size:
• Coaxial type: min 2"
• Enlarged Coaxial Type: min 3"
• Twin rod type: min 3"
• Caged GWR type: 2"
Before
H
Displacer
Length
20 mA / 100 %
4 mA / 0 %
Body connection
E
Measuring range:
min 12" (30 cm)
max 224" (570 cm)
F
P
Probe Insertion Length =
E + measuring range + F
min 1" (25 mm)
After
Recomended probe length for replacing displacer transmitters
The table below helps to define the GWR probe length for the most common displacer transmitters.
Refer to the flange selection guide on the next page.
Manufacturer
Magnetrol^®
Type
EZ & PN Modulevel^®
Masoneilan^®
Series 1200
Fisher^® series
2300 & 2500
Eckhardt^®
249B, 259B, 249C cages
other cages
Series 134, 144
Tokyo Keiso^®
FST-3000
Process connection
ANSI/DIN flange
Proprietary flange
ANSI/DIN flange
Proprietary flange
ANSI flange
ANSI/DIN flange
ANSI/DIN flange
ANSI/DIN flange
Displacer length
inches (mm)
≥ 14" (356)
≥ 14" (356)
≥ 16" (406)
≥ 14" (356)
≥ 14" (356)
≥ 14" (356)
H = 11.8" (300)
≥ H = 19.7" (500)
Π^{Round down resulting calculation to the nearest inch.}
10
Probe length Œ
inches (mm)
Displacer + 7 (178)
Displacer + 8 (203)
Displacer + 8 (203)
Displacer + 10 (254)
consult factory
consult factory
Displacer + 9 (229)
Displacer + 9 (229)