OIML R 60 • Metrological regulation for load cells

3.4 Metrological characteristics of a load cell

3.4.1

humidity symbol

symbol assigned to a load cell that indicates the conditions of humidity under which the load cell has been tested

3.4.2

load cell family

group of load cells which for the purposes of type evaluation are considered as one family and that are of:

  1. the same material or combination of materials (for example mild steel, stainless steel or aluminium);

  2. the same design of the measurement technique (for example strain gauges bonded to metal);

  3. when used, the same principle used to attach the strain gauge to the load cell;

  4. the same method of construction (for example shape, sealing of strain gauges, mounting method, manufacturing method);

  5. the same set of specifications (for example output rating, input impedance, supply voltage, cable details); and

  6. one or more load cell groups where all load cells within the group possess identical metrological characteristics (as listed in 5.1.5 — including: class; ; temperature rating, etc.).