Diesella 10458 Series Quick Start Manual

EN
PRECISION ENGINEER SPIRIT LEVEL
ART.: 10458xx
The Diesella spirit level is primarily used to check the straightness of machine guideways and other equipment, as well
as to ensure correct horizontal and vertical installation.
Structure and Features
The spirit level consists mainly of a main body with a bubble vial, a secondary bubble vial, and a zero adjustment
mechanism.
Measurement
:
1. Positioning: Place the working surface of the spirit level close to the surface to be tested.
2. Stabilization: Wait until the bubble stabilizes.
3. Reading: Read the scale, which indicates the inclination per meter.
Calculation of Actual Inclination
To calculate the actual inclination over a length (L), use the following formula:
Actual Inclination = Scale Reading × L × Number of Divisional Deviations
Example: If the scale reading is 0.02 mm/m, the length (L) is 200 mm, and there are 2 divisional deviations:
Actual Inclination = (0.02 / 1000) × 200 × 2 = 0.008 mm
Zero Setting and adjustment
To ensure accuracy, the spirit level's zero position must be checked and adjusted before use.
1. Preparation: Clean the working surface and place the spirit level on a stable, horizontal surface with
a solid base.
2. Zero Position Check:
• When the bubble is stable, set one end (e.g., the left end) to zero.
• Rotate the spirit level 180 degrees and place it back in the same position.
• Read the value at the same end. If the reading differs from zero, the zero position error is
half of this reading.
Adjustment Methods
If the zero position is incorrect, follow these steps:
1. Open the Cover Plate: Use a special key to carefully turn the adjustment nut.
2. Adjust the Screws: Adjust the 120° adjustment screws. After adjustment, if the difference between the two
readings does not exceed 1/2 division, the adjustment is correct. Wait 2–4 hours to ensure no further change
before using the spirit level. Tighten the adjustment nut after finalizing the adjustment.
Polishing
Polishing the working surface can help fine-tune the zero position, especially for fixed-type spirit levels.
Diesella A/S | Marsvej 20 | 6000 Kolding | Denmark | Tel. +45 7633 8888 | Fa× +45 7633 8899 | info@diesella.dk | www.diesella.dk