Limit bending moment [Nm]

The maximum permissible static bending moment at which a force transducer, when simultaneously loaded with the nominal force, exhibits no permanent or significant changes in its metrological properties up to the nominal force.

Limit torque [Nm]

The maximum permissible torque around the measuring axis of a force transducer at which no permanent or functionally relevant changes in the metrological properties occur when simultaneously subjected to the nominal force.

Limit force [N]

The force above which permanent or functionally relevant changes in the metrological properties of a force transducer are to be expected.

Limit shear force [N]

The maximum permissible static shear force at which a force transducer exhibits no permanent or functionally relevant changes in its metrological properties when simultaneously subjected to the nominal force.

Assembly influence on the zero signal [%]

Relative change in the zero signal relative to the nominal characteristic value that occurs when the force transducer is mounted on a base plate in accordance with the operating instructions, for example by screwing or using clamping claws.

Shear force influence [AE/N]

Relative deviation of the output signal of a force transducer as a result of a transverse force amounting to 10% of the acting force. The transverse force acts perpendicular to the measuring axis at the force application point. The maximum transverse force influence in the plane perpendicular to the measuring axis must be specified.

Relative deviation of the zero signal [%]

Maximum deviation of the zero signal of a force transducer from the value zero in the removed, i.e. unmounted state, relative to the nominal characteristic value.

Relative characteristic curve deviation [%]

Deviation of a characteristic curve value determined in a load cycle from the reference straight line, relative to the corresponding value of this reference straight line.

Relative characteristic deviation [%]

Relative deviation of the actual characteristic value from the nominal characteristic value. This specification is used in particular for force transducers whose characteristic value is factory-adjusted.

Relative linearity deviation [%]

Maximum deviation of the characteristic curve of a force transducer recorded with increasing force from the reference straight line, relative to the end value of the measuring range used.

Relative zero signal hysteresis [%]

Relative deviation of the zero signal in the installed force transducer over a complete alternating force cycle with the nominal force Fnom, relative to the nominal characteristic value.

Relative span in unchanged installation position [%]

Maximum difference in output signals at identical force, determined from several measurement series in unchanged installation position. The specification is based on the average output signal reduced by the zero signal in the installed state.

Relative span in different installation positions [%]

Maximum difference in output signals at identical force in different installation positions, relative to the average output signal reduced by the zero signal in the installed state. The number of measurement series and the installation positions used in each case must be specified.

Relative reversal span [%]

Difference between the output signals of an upward and downward measurement series with the same force F in each case, relative to the output signal reduced by the zero signal in the installed state with increasing force. To determine the reversal span, the complete load cycle up to the nominal force must be recorded. The largest relative reversal span vmax and the force measurement range used must be specified.
 

Relative tensile/compressive force characteristic value difference [%]

Difference between the characteristic values for tensile and compressive force loading, relative to the characteristic value under compressive force loading.

Relative creep

Time-dependent change in the output signal of a force transducer after a change in force. A distinction is made between loading creep and unloading creep.

Note: To eliminate the history, the force transducer must be loaded once to the nominal force. After the preload time, wait five times this period before starting the actual measurement.

Temperature influence on the zero signal [%/10K]

Change of the zero signal of a load cell, referred to the nominal sensitivity, resulting from a change of the ambient temperature $T_i$ by 10 K within a defined temperature range, after reaching steady‑state and gradient‑free thermal conditions. The characteristic value is calculated as

The maximum value of $T{K}_0$ and the applicable temperature range must be specified.

Temperature influence on the characteristic value [%/10K]

Relative change of the sensitivity coefficient of a load cell resulting from a change of the ambient temperature $T_i$ by 10 K within a defined temperature range, after reaching steady‑state and gradient‑free thermal conditions. The characteristic value is calculated as

The maximum value of $T{K}_C$ and the applicable temperature range must be specified.