10 LST300 | COMPACT ULTRASONIC LEVEL TRANSMITTER | LST300–EN REV. E
Ø51.8
Ø80.4
36.7
Ø91
145
66
34.4
(1.3)
(10.4)
(Ø3.1)
(2.5)
(Ø2.0)
(5.7)
(3.9)
(5.3)
(1.4)
(Ø3.5)
Figure 3 Transmitter with 2 inch thread
Direct mounting variations
The LST300 transmitter can also be mounted directly on a tank
using either a nut or a sleeve.
Direct installation using a nut
1 Drill a 38 mm (1.5 in.) hole (for U5 process connection) or
50.8 mm (2 in.) hole (for U2 process connection) into the
tank.
2 Fit a seal to the LST300 transmitter, insert the transmitter
through the hole and secure from inside the tank using the
nut.
Figure 4 Direct installation using a nut
Direct installation using a sleeve
1 Select a sleeve that is compatible with NPT or BSP thread.
The LST300 transmitter‘s thread size is 1.5 in. (for the 75 KHz
version) or 2 in. (for the 50 KHz version).
2 Fit a seal to the LST300 transmitter and screw the
transmitter into the sleeve by hand.
Note
Tighten the transmitter hand-tight only. Do not use tools.
Figure 5 Direct installation using a sleeve
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