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Optimizing Accuracy

While the device accuracy depends on the scales, the accuracy of the reading depends on external factors, some of which are controllable.

Reading accuracy can be affected by light and atmospheric conditions, such as mirages around the object being measured, as well as factors that prevent stable scales to provide reliable reading.

When Reading

  • Always make an estimate and an approximation of the expected magnitude.
  • Instead of trying to read the exact value, which can be obscured by the string, determine the range of values between which the measurement takes place. By “bracketing” the measurement like this, we can achieve greater accuracy, since we determine exactly what our value is not.

Be careful not to lose or distort data (measurement results or line positions) while switching between the front and back of the Telemeter and transferring the measurement or calculation results. A small notebook is helpful here.

When Measuring

  • Make sure the length of the string corresponds to the exact distance of 50 cm (19.7 inches) from the eye to the scale.
  • Find the largest object possible to measure.
  • Ensure good contrast and visibility of the features of the object being measured.
  • To stabilize the scales, eliminate as much external influence as possible with each measurement.
  • Place the holding hand on or against a solid object.
  • Take the measurement (for the Telemeter side) as perpendicular as possible to the measured object.

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