Measurement without displacement of the force application pointDue to a special force transmission system, the mechanical calibration device no. 7791 avoids a displacement of the point of application of force during the calibration process.driven by the handwheel, the lever mounted below the test rail is moved linearly by a spindlethe linear movement is converted into a rotary movement which acts on the transducerthe torque spanner to be calibrated remains constant in its position during the entire calibration processin this way, measurement errors resulting from a shift of the point of application of the force are avoidedthe torque spanner is automatically aligned horizontally by a low-friction ball bushinganother ball bushing ensures friction-free support of the torque wrenchthe resulting reduction of the transverse forces on the transducer and the friction on the torque wrench support leads to a reduction of the measuring errors.Patents pendingIncluded in delivery:TransducerSquare adaptorUSB adaptor and cable for transferring measurement data to a personal computerAdministration software for calibration certificates