T R A N S M I T T E R
P E R F O R M A N C E
Reference Conditions with a
72" coaxial type GWR probe
Linearity
Coaxial/twin
lead probes
Single lead
probes
Accuracy
Coaxial/twin
lead probes
Single lead
probes
7xT/7xL interface
Resolution
Repeatability
Hysteresis
Response Time
Warm-up Time
Ambient Temp.
S P E C I F I C A T I O N S
Reflection from liquid, with dielectric in center of
selected range, at 70 °F (+20 °C) with CFD threshold
< 0.1 % of probe length or 0.1" (2.5 mm),
whichever is greater
< 0.3 % of probe length or 0.3" (8 mm),
whichever is greater
< 0.1 % of probe length or 0.1" (2.5 mm),
whichever is greater
± 0.5 % of probe length or 0.5" (13 mm),
whichever is greater
± 1" (25 mm)
± 0.1" (2.5 mm)
< 0.1" (2.5 mm)
< 0.1" (2.5 mm)
< 1 second
< 5 seconds
-40° to +175° F (-40° to +80° C): blind transmitter
-5° to +160° F (-20° to +70° C): with digital display
-40° to +160° F (-40° to +70° C):
for EEx ia and EEx d[ia] with blind transmitter
-5° to +160° F (-20° to +70° C):
for EEx ia and EEx d[ia] with digital display
1200
1000
20.5 mA
Ω
800
630
600
400
200
24 VDC
0
0
10
11
20
VDC
30
40
GENERAL PURPOSE (GP)
INTRINSICALLY SAFE (IS)
EXPLOSION PROOF (XP)
Process Dielectric Effect
Operating Temp. Effect
Humidity
Electromagnetic Compatibility
Surge Protection
< 0.3" (7.5 mm) within selected range
Approx. +0.02 % of probe length/°C for probes
≥
8' (2.5 m)
0-99 %, non-condensing
Meets CE requirements (EN-61326: 1997+A1+A2) and NAMUR NE 21
(Single and Twin Rod probe must be used in metallic vessel or stillwell)
Meets CE EN61326 (1000 V)
Specifications will degrade with Model 7xB, 7xD, and 7xP probes and/or Fixed threshold configuration.
Top 24 inches of Model 7xB probe: 1.2 inches (30 mm).
P R O B E
Description
Materials
S P E C I F I C A T I O N S
7xD / 7xL: High Pressure / High Temperature
GWR Probe
7xS: Saturated Steam GWR Probe
®
316/316L (1.4401/1.4404), Hastelloy C (2.4819) or Monel
®
(2.4360)
Borosilicate/Inconel X750
High Temp PEEK with Aegis PF 128
Alumina
(7xD-A, B and C)
– TFE
(7xD-W)
–
High Temp PEEK
High Temp PEEK
(7xD-V, N, P and R)
Inner rod 0.31" (8 mm) – outer tube 0.87" (22.5 mm)
Stainless steel:
Inner rod 0.63" (16 mm)
Outer tube 1.75" (45 mm)
n/a
Hastelloy C and Monel: Inner rod 0.63" (16 mm)
Outer tube 1.92" (49 mm)
Threaded:
3
⁄
4
" NPT or 1" BSP (G1) – except for enlarged probe
Flanged:
Various ANSI, DIN or “proprietary” mating flanges
From 24 to 240 inches (60 to 610 cm)
From 24 to 180 inches (60 to 450 cm)
None
8" (200 mm)
ε
r: 1.4 = 6" (150 mm) /
ε
r: 80 = 1" (25 mm)
ε
r
≥
10 = 1" (25 mm)
+800° F @ 1500 psi (+430° C @ 103 bar)
+650° F @ 2250 psi (+345° C @ 155 bar)
+650° F @ 4700 psi (+345° C @ 324 bar) for
7xx-V, N, P and R
+400° F @ 5700 psi (+200° C @ 393 bar) for 7xx-W
-320° F @ 2000 psi (-196 °C @ 135 bar)
6250 psi @ +70° F (430 bar @ +20° C)
500 cP (standard) / 1500 cP (enlarged)
ε
r
≥
1.4-100: 7xx-W, V, N, P and R
ε
r
≥
2,0-100: 7xx-A, B and C
Full vacuum
(Helium leak < 10
-8
cc/s @ 1 atmosphere vacuum)
0° F @ 3000 psi (-15° C @ 205 bar)
2250 psi @ +650° F (155 bar @ +345° C)
500 cP
10 to 100
Negative pressure but not hermetic seal
Probe
Process seal
Spacers
Standard coax
Enlarged coax
Probe diameter
Process Connection
Probe length
Transition Zone
Max. Process
Temp.
Top
Bottom
Max
Min
Max. Process Pressure
Max. Viscosity
Dielectric Range
Vacuum service
Consult factory for insertion length < 24" (60 cm).
Transition Zone (zone with reduced accuracy) is dielectric dependent;
ε
r = dielectric permitivity. It is recommended to set 4–20 mA signal outside transition zones.
Consult factory for overfill applications.
7
See tables on page 9.
MAGNETROL [ MAGNETROL INTERNATIONAL, INC. ]
