Tecsis EZE30, Руководство по эксплуатации, программированию и обслуживанию

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CALIBRATION PROCEDURE USING KNOWN LOAD CELL MV/V SENSITIVITY
MULTIPLE ACTIVE LOAD CELLS
It is assumed that the load cell system is connected to the EZE30 and the power is
on. The maximum and minimum display values, display increment size and decimal
point position should be defined prior to carrying out the calibration (See Menu 3).
For this example the display maximum is define as 2009, the display minimum is -
200, the display step size is 1 and there is no decimal point.
a) Go to Menu 1.2. read the input signal in
mV/V.
Press the key. This defines the actual
zero calibration point.
b) Go to Menu 2.1 and set the display to
read the capacity of the load cell system or the weight value at which the
sensitivity is known. For this example the load cell capacity is 3 x 1000Kg =
3000Kg @ 2mV/V. Set the display to read 3000.
This
defines the theoretical calibration weight (equivalent to 2mV/V in this example).
Remember that all parameters under sections 1.1 - 1.3, 2.1 - 2.3 and 3.1 - 3.3 can
only be accessed or changed after the Recessed Enable Switch has been pressed.
Press the 0 [Enter] key. The display will
Make sure that the weighing system is empty or at the point where you
want the display to read zero. 0 [Enter]
using the UP/DOWN and RIGHT keys
Press the 0 [Enter] key.
Example:
3 leg tank or silo fitted with 3 off 1000Kg 2mV/V load cells
Dead load 500Kg, Live range 2000Kg in 1 Kg steps
c) Go to Menu 2.3. set the display to read the mV/V sensitivity of the load cell
system you are using. For this example the load cell sensitivity or Output at Rated Load is 2.000mV/V. In multiple load cell installations (load
cells wired in parallel) the sensitivity is the average of all the load cells connected.
This defines the theoretical span
calibration point.
d) If required the zero can be re-calibrated without affecting the span. To do this make sure that the weighing system is empty or at the point
where you want the display to read zero. Goto Menu 1.2. Press the 0 [Enter] key. The display shows the actual input signal in mV/V.
Press the right arrow key twice and the DAS will be back in weighting mode.
Calibration is now complete
Press the 0 [Enter] key. Use the UP/DOWN and RIGHT keys
Press the 0 [Enter] key.
Press the
0 [Enter] key.
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