Flintec FT-111 - Ecal Electronic Calibration

FT-111, User Manual Rev. 2.0.0, June 2022 Page 70 of 137
8.6.3 eCal Electronic Calibration
IMPORTANT NOTE: The eCal electronic calibration is based on the zero adjustment by entering the dead load
value or automatic zero adjustment and span adjustment by entering the load cell data.
WARNING: If the primary unit is no kg, the selected unit should be saved by exit from set-up and then
perform e-Cal.
1. Full calibration cancels the eCal performed before.
2. Span adjustment cancels the eCal performed before.
3. Gravity adjustment cannot be done after eCal.
4. done after eCal.
This parameter lets you perform calibration without using any test weights. A/D coefficients of the indicator
are adjusted in production for increasing eCal accuracy. The calibration coefficients are calculated by scale
capacity, total load cell capacity, load cell full scale output and estimated dead load. If the conditions are
convenient for zero calibration, you may perform automatic zero adjustment instead of entering estimated
preload.
[TOTAL LC CAPACIT ] [XXXXXX]
Enter total load cell capacity via keys and press key to go to the next step.
Example: If the weighing system has 4 pcs 1000 kg load cell, enter 4000.
[AVARAGE LC OUT ] [XXXXXX]
Enter load cell output in mV/V via keys. If the weighing system has more than one load cell, calculate the
mean value of load cells outputs mV/V indicated on the certificates of the load cells. Press key to go to
the next step.
Example: If load cell outputs are LC1: 2.0010, LC2: 1.9998, LC3:1.9986 and LC4:2.0002, the mean value will
be;
Mean of LC outputs = (2.0010 + 1.9998 + 1.9986 + 2.0002) ÷ 4 = 1.9999 mV/V.
[ZERO ADJUST ]
If the scale is empty and you want to make automatic zero adjustment instead of entering estimated dead
load ( look next step ), press key appears [ UNLOAD THE PAN ] and press key to start zero
calibration after unloading the scale. The display will show [ WAIT ] message during zero adjustment. In this
while the scale must be unloaded and stable. Approximately 10 seconds later electronic calibration is
performed.
If the scale is not empty or you prefer to enter estimated preload value, press the key before pressing
the key.
[ESTIM DEAD LOAD] [XXXXXX]
Enter the dead load value of the weighing system in current unit by using keys. Press the key to go to
the next step.
Notes
Dead load correction: You may change the dead load value after testing the scale and adding the displayed
gross weight value of unloaded scale to the dead load value. Do not press key after switch on the
instrument after calibration and the power on zero and automatic zero tracking should be disabled to
determine the dead load error.
Dead load value is cancelled after automatic zero adjustment.