Always make sure to measure twice
- For frontal installations, we must always measure the highest point (A), the middle point (M) and the lowest point (B).
- Of the three measures that we take A / M / B, we will keep the smallest as a reference and we will compensate the largest measure with the compensation profile.
- Check if the 3 measurements are within the range of a Salgar screen reference. Ex: Helsinki 22452, 136-140cm. Ideally, deduct 0.5cm from the lowest measurement and check if they are within the range.
- In the event that one of them is not in the range, it is always the highest average that compensates through compensating profiles.
- Ex: A is 139, M is 138.5 and B is 138cm. We discount 0.5 to B and see that the maximum difference is 137.5 to 139cm, a total of 1.5cm, which is in the range of the code and that the bulkhead compensation, 2cm per side, covers the mismatch.