A&D FZ-1200CT, Инструкция по эксплуатации

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21. TERMS/INDEX
Terms
Stable value The weight data when the stabilization indicator appears.
Environment Ambient conditions such as vibration, drafts, temperature, static electricity and
magnetic fields which affect the weighing operation.
Calibration Adjustment of the balance so that it can weigh accurately.
Output To output the weight data using the RS-232C serial interface.
Zero point A weighing reference point or the zero display. Usually refers to the value
displayed when nothing is on the weighing pan.
Digit Unit of digital resolution. Used for the balance, a unit of minimum weighing value.
Tare To cancel the weight of a container which is not included in the weight data.
Mode Balance operational function.
Re-zero To set the display to zero.
GLP Good Laboratory Practice.
GMP Good Manufacturing Practice
Repeatability Variation in measured values obtained when the same weight is placed and
removed repetitively. Usually expressed as a standard deviation.
e.g. Standard deviation=1 digit: This means that measured values fall within
±
1
digit in the frequency of about 68%.
Stabilization time Time required after a sample being placed, until the stabilization indicator
illuminates and the weight data is displayed.
Sensitivity drift An affect that a change in temperature causes to the weight data. Expressed as
temperature coefficient.
e.g. Temperature coefficient = 2 ppm/
°
C : If a load is 300 g and the temperature
changes by 10
°
C, the value displayed changes by the following value.
0.0002%/
°
C x 10
°
C x 300 g = 6 mg