Eclipse 705 Installation And Operating Manual page 38

PROBE SPECIFICATIONS
Description
Materials Probe
Process seal
Spacers
Probe diameter
Mounting
Process Connection
Probe length
Transition Zone ¿
Top
Bottom
Process Temp. ¡ Max
Min
Max. Process Pressure ¡
Max. Viscosity
Dielectric Range
Vacuum service
Media coating
Description
Materials Probe
Process seal
Bottom spacer
Probe diameter
Cage
Process Connection
Measuring range
Process Temp. ¡ Max
Min
Max. Process Pressure ¡
Max. Viscosity
Dielectric Range (level only)
Vacuum service
¿ Transition Zone (zone with reduced accuracy) is dielectric dependent;
r = dielectric permitivity. It is recommended to set 4-20 mA signal out-
ε
side transition zones.
See graphs at page 39 and 40.
¡
38
7MB: standard twin rod GWR probe
316/316L (1.4401/1.4404), Hastelloy
Teflon with Viton GFLT, Aegis PF 128 or Kalrez
® ®
Teflon
®
Two 13 mm (0.5") Ø rods – 22,2 mm (0.875") C L to C L
In-tank mounting only.
Twin rod probe must be used in metallic vessel or stillwell > 25 mm (1") from any surface or
obstruction.
Threaded: 2" NPT or 2" BSP (G 2")
Flanged: various ANSI, EN (DIN) or torque tube mating flanges
From 60 cm to 610 cm (24" to 240")
r ≥ 1,9 = 150 mm (6")
ε
r: 1,9 = 150 mm (6")/ r: 80 = 25 mm (1")
ε ε
+150 °C @ 27,6 bar (+300 °F @ 400 psi)
-40 °C @ 51,7 bar (-40 °F @ 750 psi)
70 bar @ +20 °C (1000 psi @ +70 °F)
1500 mPa.s (cP)
1,9 to 100
Negative pressure but not hermetic seal
Film: 3% error of coated length, bridging not recommended Æ
7EK: Top/Bottom GWR probe
r ≥ 1,4 - max +260 °C
ε
316/316L (1.4401/1.4404)
PEEK and TFE with Aegis PF 128
TFE
Inside tube: max 22,5 mm (0.88")
2" - Sch 80 Top/Bottom cage
Threaded: 1 1/2" NPT or 2" NPT
Welded: 1 1/2" or 2" socket weld
Flanged: Various ANSI, EN (DIN) or torque tube mating flanges
min 356 mm (14") Std. – max 6,1 m (240")
+260 °C @ 115 bar (+500 °F @ 1670 psi)
-15 °C @ 117 bar (0 °F @ 1700 psi)
117 bar @ -15 °C (1700 psi @ +0 °F)
10.000 mPa.s (cP)
1,4 to 100 - Non conductive and conductive
media
Negative pressure but not hermetic seal
Æ Bridging is defined as continuous accumulation of material between the
probe elements.
C (2.4819) or Monel (2.4360)
® ®
4079 (consult factory for alternatives)
®
7EK: Top/Bottom GWR probe
r ≥ 10 - max +315 °C
ε
PEEK and Alumina with Aegis PF 128
PEEK
+315 °C @ 109 bar (+600 °F @ 1585 psi)
10 to 100 - Conductive media