How to Choose a Tilt Sensor for Machine Levelling | Vigor

To choose a tilt sensor for machine levelling, start with the allowable angular error, then check measurement range, axes, temperature behaviour and mounting conditions. For stationary machines, use static measurement specifications; evaluate dynamic performance separately if readings must remain useful during motion.

Machine levelling accuracy: angle to height difference

For a rigid horizontal reference length L, height difference h = L × tan(θ), where θ is the inclination angle. The values below show the geometric relationship across a 1 m horizontal span.

• 0.01°: 0.175 mm over 1 m

• 0.05°: 0.873 mm over 1 m

• 0.1°: 1.745 mm over 1 m

• 0.5°: 8.727 mm over 1 m

These are geometric conversions, not predictions of machine error. Sensor accuracy, repeatability, temperature effects, mounting alignment and the reference instrument all contribute to measurement uncertainty. Compare their combined effect with the machine manufacturer’s tolerance.

How to choose a tilt sensor: range, axes and environment

• Motion: Decide whether measurement occurs with the machine stopped or during operation. Vibration and linear acceleration can affect gravity-based tilt readings.

• Range and axes: Choose a range that covers setup and operation. Select one or two axes according to the machine geometry and levelling procedure.

• Accuracy and stability: Check accuracy across the operating temperature range, repeatability and long-term stability. A fine resolution does not guarantee accurate measurements.

• Integration: Confirm power, interface, protocol, update rate, connectors and enclosure protection against the actual site conditions.

Vigor inclinometers for static and dynamic measurement

Once the conditions are defined, compare candidate products against the required configuration. The following overview identifies their measurement roles; confirm detailed specifications in the current datasheet.

• SST100 static inclinometer: general static inclination checks on stationary equipment.

• SST300 industrial inclinometer: precision static angle monitoring.

• SST400 high-precision inclinometer: precision equipment and platform levelling.

• SST810 dynamic inclinometer: inclination and attitude during motion; assess separately from static levelling.

Confirm the range, axes, accuracy conditions and interface for the supplied version before ordering.

Installing an inclinometer for machine levelling

Mount the sensor on a rigid surface representing the machine datum. Follow the installation instructions for axis orientation, surface preparation, fastener torque and cable strain relief. Compare installed readings with a suitable calibrated reference under stable conditions, and record the temperature and machine state. Field verification does not replace calibration.

Frequently asked questions

What is the difference between a tilt sensor and a spirit level?

A spirit level provides a local visual indication. An industrial tilt sensor provides an electrical angle signal for a display, logger or control system. Either instrument must suit the required tolerance and measurement procedure.

Should I choose a static or dynamic inclinometer?

Use static measurement specifications for stationary levelling. If acceleration or motion forms part of the measurement, assess dynamic accuracy, bandwidth and latency for that operating condition.

Is resolution the same as accuracy?

No. Resolution is the smallest reported increment. Accuracy describes how closely a result agrees with the reference value under specified conditions. Consider both alongside repeatability and stability.

Discuss your machine levelling application

Send Vigor the machine type, levelling tolerance, range, axes, motion conditions, temperature and required interface to discuss model selection. Request model selection support.