The manual was a masterpiece of industrial clarity. Sal opened it to the dog-eared page: Section 4.2 – Zero Drift & Tare Adjustment . The diagrams were simple line drawings, the steps numbered with the patience of an engineer who knew that a scale was only as honest as its operator.
Check the fuse in the plug and ensure the DC jack is firmly connected. 6. Maintenance and Cleaning Avery Berkel L115 Manual