Endress+Hauser Liquicap M FTI51 - 3.1 Probe Types and Specifications

Installation Liquicap M FTI51, FTI52
22 Endress+Hauser
3.1 1. Fully insulated rod probes FTI51
!
Note!
• The active rod probe is always fully insulated (dimension L1).
• Total length of the probe beginning at the sealing surface: L = L1 + L3 (+ 125 mm with active buildup
compensation + H3*)
• Thickness of insulation for probe rod diameter 10 mm = 1 mm; 16 mm = 2 mm; 22 mm = 2 mm
• Always use a fully insulated probe with active buildup compensation for high-viscosity, conductive media
that tend to form buildup.
Rod probe Rod probe with
ground tube
Rod probe
with inactive
length
Rod probe with
inactive length
and ground
tube
Rod probe
with fully
insulated
inactive length
Rod probe
with active
buildup
compensation
Rod probe with
inactive length
+ active
buildup
compensation
L00-FMI5xxxx-06-05-xx-xx-061
L00-FMI5xxxx-06-05-xx-xx-060
Total length (L) 100 to 4000 100 to 4000 200 to 6000 200 to 6000 300 to 4000 225+H3 to 4125 325 to 6000
Active rod length (L1) 100 to 4000 100 to 4000 100 to 4000 100 to 4000 150 to 3000 100 to 4000 100 to 4000
Inactive rod length (L3) -- -- 100 to 2000 100 to 2000 150 to 1000 -- 100 to 2000
Probe rod diameter 10 16 10 16 10 16 10 16 22** 10 16 10 16
ø Ground tube -- -- 22 43 -- -- 22 43 -- -- -- -- --
ø Inactive length -- -- -- -- 22 43 22 43 22** -- -- 22 43
ø Active buildup compensation -- -- -- -- -- -- -- -- -- 19 26 19 26
Length (mm) active buildup compensation -- -- -- -- -- 125 125
Lateral loading capacity (Nm) at 20 °C <15 <30 <40 <300 <30 <60 <40 <300 < 25** <30 <60 <30 <60
For use in agitating tanks -- -- X -- -- X -- -- --
For aggressive liquids X -- -- -- X -- --
For high-viscosity liquids X -- X -- X X X
For use in plastic tanks -- X -- X -- -- --
For use in mounting nozzles -- -- X X X -- X
In the event of condensate on tank ceiling -- -- X X X -- X
For high-viscosity conductive liquids -- -- -- -- -- X X
X = Recommended * H3 = Thread height (important for calculating the exact probe length for process connection with thread G½, G¾, G1, G1½.) Information on
dimension H3 can be found on Page 19 ff. under Process connections → Thread → G → H3.
** Probe tube
L1/L3 L1/L3
NPT
G
L3L1
L1
L3
125
125
L1
L1
L3L1
L1
L1
L3
H3*
Length tolerances L1, L3 up to 1 m: 0 to –5 mm from 1 m to 3 m: 0 to –10 mm from 3 to 6 m: 0 to –20 mm