Endress+Hauser Liquicap M FTI51 - Page 24

Installation Liquicap M FTI51, FTI52
24 Endress+Hauser
3. Partially insulated rod probes FTI51
For a switch point with millimeter accuracy in conductive liquids
!
Note!
• Total length of the probe beginning at the sealing surface: L = L1 + L3 (+ 125 mm with active buildup
compensation + H3*)
• Thickness of partial insulation for probe rod diameter 10 mm = 1 mm; 16 mm = 2 mm
Rod probe Rod probe with
ground tube
Rod probe with
inactive length
Rod probe with
inactive length
and ground tube
Rod probe with
active buildup
compensation
Rod probe with
inactive length
and active
buildup
compensation
L00-FMI5xxxx-06-05-xx-xx-063 L00-FMI5xxxx-06-05-xx-xx-062
Total length (L) 100 to 4000 100 to 4000 200 to 6000 200 to 6000 225+H3* to 4000 100 to 6000
Active rod length (L1) 100 to 4000 100 to 400 100 to 4000 100 to 4000 100 to 4000 100 to 4000
Inactive rod length (L3) - - 100 to 2000 100 to 2000 - 100 to 2000
Length of partial insulation (L2) 75 to 3950 75 to 3950 75 to 3950 75 to 3950 75 to 3950 75 to 3950
Probe rod diameter 10 16 10 16 10 16 10 16 10 16 10 16
ø Inactive length / ground tube - - 22 43 22 43 22 43 - - 22 43
ø Active buildup compensation - - - - - - - - 19 26 19 26
Length, active buildup compensation - - - - 125 125
Lateral loading capacity (Nm) at 20 °C <15 <30 <40 <300 <30 <60 <40 <300 <30 <60 <30 <60
For use in agitating tanks - - X - - X - -
For aggressive liquids - - - - - -
For use in plastic tanks - X - X - -
For use in mounting nozzles - - X X - X
In the event of condensate on tank
ceiling
--XX-X
For high-viscosity liquids 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.
L1/L2/L3
L1/L2/L3
L1/L2/L3
L1/L2/L3
NPT
NPT
G
G
L3L1
L2
L1
L1
L2
L2
125
L1
L2
L3L1
L1
L2
L2
125 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