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COMPENDIUM INCLINATION MEASUREMENT
WYLER AG, WINTERTHUR / SWITZERLAND

7.5 ANALOG INCLINATION SENSORS LEVELMATIC 31 AND LEVELMATIC C

LEVELMATIC 31 LEVELMATIC C
LEVELMATIC 31 and LEVELMATIC C analog sensors are analog sensors with an analog voltage / current
output signal. This sensors have specifically been developed to be mounted on machines. Since the sen-
sors are mounted in a tight, weatherproof, and shock-resistant housing, inclination measurements are pos-
sible even under difficult conditions. The sensors are easy to use, and requires little in technical know-how.

Family of LEVELMATIC sensors
The LEVELMATIC sensors have established themselves in the market as the benchmark when it comes
to high precision measurement in demanding applications with analog output. The LEVELMATIC-family of
sensors features the following characteristics:
• High resolution and high precision
• Excellent temperature stability
• Measuring range of ±2 mRad to ±20 mRad, respectively ±15° and ±30°
• High immunity to shock
• High immunity to electromagnetic fields
• Simple handling

LEVELMATIC 31 and LEVELMATIC C
Common characteristics of the two sensors:
• The measuring element is based on a pendulum swinging between two electrodes. Depending on
the inclined position of the system, the pendulum will change its position in relation to the electro-
des and in so doing, the capacitance between the pendulum and the electrodes will change.
• The sensor cell is completely encapsulated and thus protected against changes in humidity
• The output of the measuring value is a voltage which can be measured with commercially available
electrical measuring instruments.
Difference in characteristics of the two sensors:
• The pendulum of the LEVELMATIC 31 is larger, which provides a significantly better signal-to-noise
ratio for smaller inclinations. The LEVELMATIC 31 is therefore better suited for high precision appli-
cations where only small inclinations are measured.
• The mass of the pendulum of the LEVELMATIC C is smaller than the one of the LEVELMATIC 31.
This provides a higher stability if the sensor is permanently inclined
• LEVELMATIC C has a wider measuring range
• The LEVELMATIC C has an additional current loop output with 4..20mA The following list of charac-
teristics should allow a proper differentiation and proper application of the 2 sensors.

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