Tecfluid LP Series - Manual (Page 5)

5
When the end stop is reached the indicating needle should coincide with the zero of the
scale.
Check that the float length coincides with the level difference to be measured.
2.2 Storage temperatures
-20ºC ...... +60ºC
3 HANDLING
It should always be done with care and without knocks.
4 INSTALLATION
4.1 Float
When the rod is longer than 3 m (or in agreement with the customer) the float is divided
into 2 or more parts.
Before starting mounting, study the installation conditions to decide if it is better to
assemble the float before, during or after introducing it into the tank. This will depend on
the length of the float, availability of manholes etc.
The different parts of the float are assembled by means of a stud on the top of the lower
piece and a female thread on the upper piece. A split washer (Grower) should be used
on all the joints.
The top of the float has a length of chain (except in the case of the minimum length, 115
mm, in which only the hook is supplied). The last link of the chain should be hung on the
s-shaped hook which protrudes from the coupling piece to the tank.
Once the float is mounted, its weight will make the indicating needle descend to the zero
of the scale. If we lift the float gently, the indicating needle will move towards the 100% of
the graduated scale.
4.2 Installation in the tank
Mount the seal on the flange or the coupling thread (seal not supplied).
Introduce with care the float through the mounting hole until the flange or coupling thread
couples with the tank.
In the case of a flange, fix it with the appropriate nuts & bolts.
In the case of a screw fitting, turn until tight. Do not apply torques greater than 350
Nm.
If it has been decided to fit the float last, it must be introduced via a manhole and
mounted from inside of the tank.
5 MAINTENANCE
5.1 Spring assembly
The following defects may appear:

Magnetic coupling deterioration,

Variation of the adjustment of the spring.
If any of these problems occur, it is preferable to repair it in TECFLUID S.A. workshops,
as a new calibration will be normally necessary.