T W I N
R O D
P R O B E
7XB Twin Rod-Rigid
Recommended for
Not recommended for
Materials/Wetted parts
Optional
Process seal
Spacers
Diameter
Process connection thread
Flange ANSI (DIN)
Length
Transition zone
Top
Bottom
Deadband
Process temperature
Top
Maximum
General purpose, foam, minor film coating
Media bridging between rods
or building up on spacers
316L stainless steel, TFE, Viton
®
GFLT
Hastelloy C, Monel
Viton
®
GFLT O-ring
TFE
Two,
∅
.50" (13 mm) rod;
.875" (22 mm) C
L
to C
L
2" NPT, 2" BSP
2" to 4" (DN50 to 100)
1" (25 mm) @
ε
r > 10, 8" (200 mm) @
ε
r < 10
(+4" (100 mm) inactive)
6" (150 mm) @
ε
r = 2.5
1" (25 mm) @
ε
r = 80
24 to 192 inches (60 to 488 cm)
4"(+4" inactive section)
+400° F @ 200 psig (+200° C @ 13 bar)
-40° F @ 750 psig (-40° C @ 50 bar)
750 psig @ +70° F (50 bar @ +20° C)
Yes, not hermetic
≥
2.5
1500
Active rod > 1" from any obstruction
Film: 3% max. error of coated length with conductive media
Bridging not recommended
Yes
Yes
No
No
Minimum/cryogenic
Process pressure
Maximum
Minimum/vacuum service
Dielectric range
Maximum viscosity (cP)
Mounting effects
Coating/Buildup
Foam
Corrosives
Hygienic
Overfill
Approvals
FM
CSA
ATEX
OTHER
Yes
Yes
Yes
No
Transition Zone is dielectric dependent:
ε
r = dielectric permittivity.
Unit will function but accuracy will decrease in Transition Zone.
NOTE: Output may go to Fault mode when medium is within top 7 inches of probe and
ε
r <20.
Refer to Ambient Temperature vs. Process Temperature graph on page 8.
Bridging is defined as continuous accumulation of material between the probe elements.
Minimum stillwell diameter for Twin Rod probe is 3 inch (80 mm).
Refer to Selection Chart on page 7 for optional O-rings.
6
MAGNETROL [ MAGNETROL INTERNATIONAL, INC. ]
