Other Mounting Variations; Direct Installation Using A Nut; Direct Installation Using A Sleeve - ABB LST100 Operating Instructions Manual

Ultrasonic level transmitter for upstream oil and gas

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2 Mounting

2.4 Other mounting variations

The LST100 transmitter can also be mounted directly

on a tank using either a nut or a sleeve.

Referring to Fig. 2.8

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 LST100 transmitter, insert the transmitter

through the hole and secure from inside the tank using

the nut.

Fig. 2.8: Direct installation using a nut

8 OI/LST100-EN | LST100 – Ultrasonic level transmitter

Referring to Fig. 2.9

1. Select a sleeve that is compatible with NPT or BSP

thread. The LST100 transmitter's thread size is 1.5 in.

(for 20 ft. version) or 2 in. (for the 30 ft. version).

2. Fit a seal to the LST100 transmitter and screw the

transmitter into the sleeve by hand. Note: Tighten

the transmitter hand-tight only – do not use tools.

Fig. 2.9: Direct installation using a sleeve

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