Page 108 - Lehrbuch Neigungsmessung deutsch 2018.indd

COMPENDIUM INCLINATION MEASUREMENT
WYLER AG, WINTERTHUR / SWITZERLAND

7.1.7.1 THE MEASURING PRINCIPLE OF THE ZEROMATIC SENSOR
Sequence of the reversal measurement / continuous measurement / measuring axis
reversal measurement / definition of the zero-offset

ZEROMATIC 2/1:
The interval between two reversal measurements can be freely chosen with any value larger than two
minutes and depends on how many measuring values are required per day or per hour. The chosen inter-
val can be programmed by software or with the help of a BlueMETER and is stored in the ZEROMATIC. A
typical value for long-term monitoring is one reversal measurement every hour.
Alternatively a reversal measurement can be triggered by a software command. After each reversal mea-
surement the sensor provides a new set of the current absolute inclination values in both axes. These
values will be kept until the next reversal measurement.

ZEROMATIC 2/2:
The stability of the environment defines the frequency required to recalculate the zero-offset by execu-
ting a reversal measurement. The interval can be chosen between a few minutes (at least two minutes) up
to several hours. The chosen interval can be programmed by software or with the help of a BlueMETER and
is stored in the ZEROMATIC. Furthermore, a reversal measurement can be triggered at any time with a soft-
ware command. During a reversal measurement,
the continuous measurement of the ZEROMATIC
2/2 is interrupted

When starting a reversal measurement, the ro-
tor first seeks the standby position. Then it turns
to the measuring positions:
ZEROMATIC 2/1:
270°/ 180° / 90°/ 0°. After the last measu-
rement, the rotor moves to the standby
position and remains there until the next
reversal measurement starts.
ZEROMATIC 2/2:
180° / 0°. The rotor remains (afterwards) in the
0° position. Sensors start to measure continuous-
ly.

Page 108