Setting The Switching Differential - BACHOFEN LTB020X Mode D'emploi

Trimod Besta float module – types -140, -141, -145 und -146
For vertical mounting
Legend
Information: Application hints and important information. To be followed for optimal function.
Attention: Requirements and prohibitions to prevent damages, especially to material and the environment.
Danger: Dangerous situation that can lead to injury and death if instructions are not followed.
1.

Setting the switching differential

Application for pump control, 2 switch points
The required differential is set by fixing the two stop collars in the appropriate positions on the rod. The
counterweight B) has to be adjusted to compensate for the rod weight (without float), until the cross
arm is balanced. The float slides up and down the rod with the liquid level and actuates the switch at
the set position of the stop collars. The force of the magnets causes the switch to remain in either of
the two end positions.
Application for alarm operation, 1 switch point
Only the lower collar is fixed on the rod (below the float). Within the limit of the rod length, the height of
the alarm point can be chosen as required. The counterweight B) has to be set, to out weigh the rod
(without float). The alarm switching differential is 12 mm.
Adjustment at factory
The level switches are factory set for pump control.
Distance X for types -140 / -145 = 32 mm
Distance X for types -141 / -146 = 29 mm
If the rods have to be shortened or the switch has to be used for alarm purposes, the position of
the counterweight has to be adjusted, as described in chapter 2.
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Operating Instruction – English
6 │ 18 LTB020X │ 2021.08