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47LLC OPERATING MANUAL EM-9505-B Rev.4
5. sETTING sCALING VALUEs WITH PARAMETERs
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INPUT sCALING
Input scaling means setting output voltage of a strain gauge to use as input value. The input scaling values include A and
B.
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Input scaling value A is minimum value (0%) of input signal.
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Input scaling value B is maximum value (100%) of input signal.
To set the input scaling, it is necessary to calculate output voltage from a strain gauge. In the setting example, when the
rated load is applied with excitation voltage 1 V, the output voltage is 2 mV.
With excitation voltage 5 V,
Strain gauge output voltage = rated output × excitation voltage
2 mV/V × 5 V = 10 mV
The output voltage is 0 mV without any load. Therefore the output range from the strain gauge is 0 – 10 mV DC.
Set the input scaling as shown below.
Input scaling value A
Input scaling value B
0 mV
10 mV
IMPORTANT
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Set ‘input scaling value A < input scaling value B’.
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Setting beyond the setting range per input strain gauge code and excitation voltage is not available.
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Input scaling values can be adjusted by applying actual load. Refer to 6. SETTING SCALING VALUES WITH ACTUAL
LOAD for details.
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The tare adjustment is reset when the input scaling value A or B has been changed.
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DIsPLAY sCALING
Display scaling means setting a value to display actually.
The display scaling values include A and B. A decimal point can be set in any position.
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Display scaling value A is a display value for the input scaling value A.
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Display scaling value B is a display value for the input scaling value B.
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Decimal point position can be set in common for both display scaling value A and B.
e.g. Display value 0.0 – 300.0 kg
Display scaling value A
Display scaling value B
Decimal point position
0.0 kg
300.0 kg
000.0 (1 decimal place)