Levelling
Levelling is the operation of bringing the vehicle's floor plane to a horizontal position with respect to gravity. It is done on two axes at once: front–rear and left–right. In an RV the aim is not comfort but the correct operation of tilt-sensitive systems such as the refrigerator, water drainage and body loading. The KTS200 does this automatically to 0,025° precision.
For a caravan to be level means that its floor coincides with the horizontal plane on both axes. Correcting on one axis is not enough: if you correct the front–rear direction and leave the left–right tilt, the refrigerator and the grey water drain still work incorrectly.
- Measurement is made with a tilt sensor; correction is provided by extending the four jacks to different lengths.
- The target is not zero but a value close enough to zero. On the KTS200 this value is 0,025°.
- Levelling differs from stabilisation, which reduces rocking; although both are done with the same jacks, their purposes are separate.
In practice, when you park at a camp site the ground is rarely horizontal. Rough correction done by hand with blocks usually cannot get down to tenths of a degree. An automatic system, on the other hand, converges on the target because it uses the angle it measures as feedback. When levelling, do not lift all wheels off the ground; the jacks exist not to hold the vehicle in the air but to carry part of the weight and correct the angle.
Context in which this term is used: Guide to automatic RV levelling