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  1)Rated output (R.O.)

  The algebraic difference between the outputs at no-load and at rated load.
Usually load cell output is specified in milli-volts per volt at rated capacity.
  (example : 2mV/V ± 0.1%)

  2) Non-lineality

 The maximum deviation of the cali- bration curve from a straight line beween zero and rated load outputs, expressed as a percent of the rated output and measured on increasing load only . (example : 0.02% of R.O)

  

  3) Hysteresis

  The maximum difference between output readings for the same applied load one point obtained while increasing from rated output.
The points are taken on the same continuous cycle. The deviation is expressed as a percent of rated output. (example : 0.02% of R.O)

  

  4) Repeatability

  The ability of a load cell to reproduce output readings when the same load is applied to it consecutively, under the same conditions, and in the same direction.
Repeatability is expressed as the maximum difference between output readings as a percent of rated output. (example : 0.03% of R.O)

  

  5) Creep

  The change in load cell output occurring with time, while under load, and with all environmental conditions and other variables remaining constant.
Usually measured with rated load applied and expressed as a percent of rated output over a specific period of time.
  (example : 0.03% of R.O./30min)

  6) Zero balance

  The output signal of the load cell with rated exitation and with on load applied, usually expressed in percent of rated output.
  (example : ±5% of R.O)

  7) Input resistance

  The resistance of the load cell circuit measured at the excitation terminal, at standard temperature, with no-load applied, and with the output terminals open circuited.

  8) Output resistance

  The resistance of the load cell circuit measured at the output signal terminals, at standard temperature, with no-load applied, and with the excitation terminals open circuited.

  9) Insulation resistance

  The DC resistance expressed in ohms measured between any electrical connector pin or lead wire and the load cell body or case. Normally measured at 50 VDC.

  10) Compensated temperature range

  The range of temperature over which the load cell is compensated to maintain rated output and zero balance within specific limits.

  11) Safe temperature range

  The range of temperature over which the load cell may be safely operated up to full scale without causing failure but specifications may not be met.

  12) Temp, effect on zero balance

  The change in zero balance due to a change in ambient temperature. Usually expressed as +/- a percentage change in rated output per degree C change in ambient temperature, over the compensated temperature range.

  13) Temp, effect on in rated output

  The change in rated output due to a change in ambient temperature.
Usually expressed as +/- a percentage change in rated output per degree C change in ambient temperature, over the compensated temperature range.

  14) Safe overload rating

  The maximum load percent of rated capacity which can be applied without causing a permanent change in the performance specifications.

  15) Ultimate overload rating

  The maximum load in percent of rated capacity which can be applied without producing a structural failure.

 

 

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