The Care and Use of Multimeters Standards: Manufacturer’s specifications These specifications specify the tolerances and limits for various functions of the multimeters including: 1. Always select the  multimeter that best fits the application based on accuracy, working environment and ease of use. 2. Care should be taken while using the multimeter. Should you drop or overload a multimeter, it should be re-calibrated/repaired before reusing it. 3. Ensure the leads of the multimeter are protected when

The Care and Use of Surface Tables and Plates British Standard Reference : BS 817 : 2008 1. A Surface Plate is a datum and should be protected against damage. The top should be frequently wiped clean from dust and other particles. When measurements are being made, a cloth should be spread on the Surface Plate to receive small tools and gauges. When the Surface Plate is not in use the top should always be

The care and use of external micrometers to ensure accurate measurements British Standard Reference : BS 870 : 2008 1. Select the micrometer that best suits your requirement. Ensure that the type, measuring range, graduation and other relevant specifications of the micrometer are appropriate for your application. 2. Always use the ratchet or friction thimble in the appropriate manner, never rotate the micrometer thimble violently. 3. Avoid parallax errors by reading the micrometer and vernier scales