
What is Zero value after power on?It is zero value that records after the digits countdown from 9 to 0.

What is Zero value after calibrate?It is zero value that records when doing specification calibration or weight calibration.

What is the zero range after press zero key?± 2% of the maximum capacity

What is Span Drift?Temperature change effect on output
Express way：
TEMP. Effect on output: 0.020% R.O/10℃
R.O is Rated Output
For example：
15.000kg*0.005kg Its external resolution =15.000kg/0.005kg= 3000E
Change range of temperature：10℃~ +40℃; temperature change in total:50℃
3000E * 0.02% * (50℃/10℃) = 3E = 3 *0.005kg=0.015kg
When using 1/3 capacity (equals to5.000kg) to measure:
(5.000kg / 15.000kg) * 3000E * ( 50℃ / 10℃ ) = 1E = 0.005kg 
What is relinearity?It is also called repetitiveness. Methods of testing:
We test 3 times through testing linearity. The largest tolerance with standard value in testing.
Express way
tolerance of relinearity < 0.0333333 % R.O
R.O is Rated Output
For example:
15.000kg*0.005kg Its external resolution =15.000kg/0.005kg= 3000E
To shift tolerance of relinearity of external value= 3000E * 0.0333333% = 0.999999E ≒ 1E =0.005kg
Capacity: 0.000kg ~ 15.000kg; tolerance of linearity: ± 0.005kg 
What is linearity?It is the largest tolerance with standard value in testing. Usually, we represent the tolerance of Nonlinearity for linearity Express way: tolerance of Nonlinearity < 0.0333333 % R.O
R.O: Rated Output
For example:
15.000kg*0.005kg Its external resolution =15.000kg/0.005kg= 3000E
To shift tolerance of nonlinearity of external value= 3000E * 0.0333333% = 0.999999E ≒ 1E =0.005kg
Capacity: 0.000kg ~ 15.000kg; tolerance of nonlinearity: ± 0.005kg 
What is unit weight insufficient?In counting mode, the unit weight of sampling or the unit weight you input is less than 0.2E, the icon of unit weight insufficient

What “OL,E1,E2,E4,E6,E7” stands for?【price computing scale】
The weight value is over 9 division of maximum capacity.
Zero value above 10% full scale.
Zero value below 10% full scale.
The internal value is over 350,000.
The internal value is below 80,000.
【counting scale】
Zero value is too high (OIML or NTEP > 10% full scale)
Zero value is low (OIML or NTEP < 10% full scale)
Internal value is more than 700000(use in factory calibration)
Internal value is lower than 100000(use in factory calibration)
The weight value is over 9d of the maximum capacity. (d=division)
Internal value is unstable
Unstable time is over 10 seconds after pressing ZERO or TARE key
【Weighing Scale】
The weight value is over 9 division of maximum capacity.
Zero value after power on is over +10% FS.
Zero value after power on is less than 10% FS.
Unstable zero return, unstable over 10 sec. Press zero key to leave E4.
Zero is too high when calibrating. (over internal value350,000)
Zero is too low when calibrating. (under internal value 80,000)
The scale is not in level status.(only available with level detector equipment.)
      If the negative weight is over 20 divisions and there is no T or PT, the display shows “     ” 
What is auto unit weight averaging?It is the unit weight which calculates quantities. It will modify the current weight automatically with adding quantities every time.
The condition of averaging unit weight: the quantities you add every time are less than current quantities on the platter. 
Gravity effects on weighbridgeGravity is the force that makes objects fall to the ground
Acceleration of gravity at the Equator：GE＝978.03184558cm/sec2
Acceleration of gravity at the Poles：Gp＝983.21772792cm/sec2
If the G value of someplace is the acceleration of sth. fall to ground, G value is not decreasegradually from mantle to centre of the earth, but G value becomes the maximum in thebottom of mantle and then it decrease to zero gradually.
The formula of G value in deferent latitude :
Gψ＝978.03185（１＋0.005278895sin2ψ＋0.000023462sin4ψ）
G value in different places
(1) Taipei：980cm/ sec2
(2) German：981.1cm/ sec2
(3) G value of Taipei/ G value of German：980/981.1=0.99887880949
(4) Set weight *0.99887880949 as the weight you must set
E.G. 1kg*0. 99887880949≒0.998kg you should input 998g and put 1kg to calibrate weigh 
What is amplified factor value?The weight displays under the load. E.g. put 1,000g, read out 995g which is the amplified factor value.

What is capacity?The maximum value the scale can measure.
The capacities of our products including: 150g、300g、500g、 600g、1200g、1500g、3000g、6kg、7.5kg、12kg、15kg、30kg、60 kg、120kg、150 kg、300 kg、600 kg、1t、1.5t、2t、3t、5t 
What is division?The minimum value the scale can measure
The divisions of our products including: 0.005g、0.01g、0.02g、0.05g、0.1g、0.2g、0.5g、1g、2g、5g、10g、20 g、50g、100g、200g、500g、1kg、2kg

What is resolution?Capacity / division (The maximum value / the minimum value)
Example 1
300g * 0.005 resolution= 300.000g/0.005g= 60000
Example 2
15kg * 0.001kg resolution= 15.000kg / 0.001kg = 15000 
What is external resolution?The external analytical value of the scale

What is internal resolution?The internal analytical value of the scale the external value is convert by the internal analytical value. E.g. if the range of internal value is 0~400,000, the eternal value is 1/6,000, its internal resolution is 400,000/6000=66.

What is external value?The weight displays after weight calibration.
The range of external value the minimum value ~ maximum value 
What is weight calibration?Manual calibrate：Make the scale weight correctly through the adjustment from hardware Digits calibration：Make the scale weight correctly through the adjustment from software

What is linearity calibration?The linearity of load cell is lower than the resolution of the measurement so that we do multipule calibration to get close to the condition of nonlinearity of load cell.

What is temperature calibration?Usually, the material will change when the temperature change. At this moment the weight will also change. It can decrease the tolerance through temperature calibration.

What is 9 OL?The maximum capacity adds ntupling division to ensure the range of maximum capacity can be measured. Usually it is the maximum capacity + 9E, but it is the maximum capacity + 9E in Hong Kong and Brazil.

Common Unitskg, g, T, lb, lb. oz, oz, twg, tl.T, MM(JPN), tl.J(HONG KONG JEWELY TAEL) tl.H(HONG KONG TAEL), ct, dr GN, ozt, dwt, t(INDIA)