Specifications

LASER D22, D23: calibrating the vials

A10

When calibrating the single vial on laser-

transmitter D22, the sweep of the laser can be

used. Place the detector in two positions, at least

1 m apart, and let the laser beam pass through

this from two directions.

Use the three point washers placed on the

magnets for proper elevation, and mount the

laser as shown on picture below.

1. Level according to vial at A.

2. Zero set display at B.

3. Note the value at C.

4. Move the laser to D and level according to vial.

5. Zero set display at E.

6. Note the value at F.

7. Add C- and F-value and divide by 2.

8. Level the laser to the result from point 7.

9. Adjust the vial using a hexagon wrench.

Self calibration of vials when high demands of horizontal

plane. The vials on laser D22 and D23 are normally calibrated

to the laser beam. Measurements that need an absolute

horizontal plane to be the reference will put great demands on

the calibration. Therefore any errors in the calibration are

measured and compensated for. The principle is the same as

for normal calibration, but can get you a better accuracy

because it is done during measurement.

1. Level according to vials.

A. Zero set value.

B. Read the value (for example 1.00)

2. Index the laser 180°, level according to vials.

C. Zero set value.

D. Read the value(for example 2.00)

3. E. Calculate the middle of B and D (in this case 1.50)

This shows the difference in level of the measurement points.

Calculated value