Laboratory manual for the evaluation of non-automatic weighing devices

LG-3.21 Portability test

Table of contents


Reference

Sections 9, 10, 11, 12, 22 and 30 of the Specifications Relating to Non Automatic Weighing Devices (1998)

Application

This test is intended for any device. For portable device this test must be performed at least once, after moving the device to the temperature chamber or to the permanence testing area, and should be performed whenever the device is moved during performance testing. For devices intended for permanent installation this test must be performed whenever the device is moved during performance testing.

Settings

Procedure

  1. After having moved the device, perform an increasing and decreasing test.

Interpretation of results

For portable devices:

The device meets the requirements if all the results remain within the applicable limits of error. If the error curve of the device has been significantly altered, but still within tolerance, then the device may be re-calibrated.

For permanent devices:

If the error curve of the device has been significantly altered then the device may be re-calibrated, even if the results are not within the applicable limits of error.

Revision

Original document

Date modified: