64
BE 57-660 Eclipse Model 700 Guided Wave Radar Transmitter
Launch Plate
3.6.3 Probe Selection Guide
GWR
Probe
¿
Description Application
Installation Dielectric
Range
¡➂
Temperature
Range
Max.
Pressure
Vacuum
√
Overfill
Safe
Viscosity
cP (mPa
.
s)
Coaxial GWR Probes— Liquids
7zT
Standard
Temperature
Level/Interface Tank/Chamber
ε
r
1.4 –100
-40 to +200 °C
(-40 to +400 °F)
70 bar
(1000 psi)
Yes
Yes
500/2000
7zP
High
Pressure
Level/Interface Tank/Chamber
ε
r
1.4 –100
-196 to +200 °C
(-320 to +400 °F)
431 bar
(6250 psi)
Full
Yes
500/2000
Single Rod Rigid GWR Probes— Liquids
7zF
Standard
Temperature
Level
Tank
ε
r
1.4–100
-40 to +200° C
(-40 to +400° F)
70 bar
(1000 psi)
Yes
No
ƒ
10000
Single Cable Flexible GWR Probes— Liquids
7z1
Standard
Temperature
Level/Interface
Tank
ε
r
1.4–100
-40 to +200 °C
(-40 to +400 °F)
70 bar
(1000 psi)
Yes
No
ƒ
10000
COAXIAL/CAGED GWR PROBE
SINGLE ROD/CABLE PROBE
signal propagation
signal propagation
end view
¿
2
nd
digit B=English, D=Metric
¡
Minimum
ε
r 1.2 with end of probe analysis enabled.
➂
Single rod probes mounted directly into the vessel must be within 75-150 mm
( 3 – 6 inches) of metal tank wall to obtain minimum dielectric of 1.4, other-
wise
ε
r
min = 1.7.
√
ECLIPSE probes containing o-rings can be used for vacuum (negative
pressure) service, but only those probes with glass seals are hermetically
sealed to <10
-8
cc/sec @ 1 atmosphere helium.
ƒ
Overfill capability can be achieved with software.
Launch Plate
