What is creep of a load cell?

The creep of a load cell means: when load cell is in stable environment( for example, temperature, humidity) and other changeable aspects keep no change (for example: estable force system, load and other aspects),when load cell is loaded quickly a nominal load and unload the nominal load, within a certain time, the output of load cell changes with time. the normal creep have two types: positive creep, negative creep.