
record number: | 78 |
instrument type: | level |
manufacturer: | Kern |
serial number: | 101995 |
model: | GK1-A |
weight: | 1.64 kg |
dimensions (l/w/h): | 15/11/14 cm |
year of manufacture: | 1963 |
instrument set up: |
circular level
compensator |
Telescope | |
diameter of objective: | 45 mm |
magnification: | 25 x |
type: | telescope with internal focusing |
cross hairs/reticule: | Reichenbach's crosshairs |
precision: | 1.5 mm/km |
The compensating level was made in 1963. It is a simple instrument without any foot screws for levelling. The Kern system, using a circular level, enables levelling by moving the conical support over the spherical head of a tripod adapted for it. The instrument is light, compact and very practical to use. It is more precise than the older model GK0-A, being able to achieve a precision of 1.5 mm for 1 km double-run levelling.
The instrument is in the same condition as when it was originally taken out of service.