User Manual
Z-SG2 / Z-SG2-L
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Doc: MI-005370-EN
Rev. 1.0.0.2
Page 14
on the corners is not very practical. In these cases the second, more suitable method is to "pre-trim" the
potentiometers using a precision voltmeter (at least 4 1/2 digits). You can use the following procedure:
1) Determine the exact mV/V ratio of each load cell, shown in the calibration certificate of the cell itself.
2) Determine the exact excitation voltage provided by the indicator/meter (for example Z-SG), measuring this
voltage with the voltmeter (for example 10.05 V).
3) Multiply the lowest mV/V value found (point 1) by the excitation voltage (point 2).
4) Divide the trimming factor calculated in point 3 by the mV/V value of the other load cells.
5) Measure and adjust the excitation voltage of the other three load cells using the respective potentiometer.
Check the results and make a final adjustment by moving a test load from corner to corner.
DIGITAL OUTPUT / INPUT CONNECTIONS
The device can be configured with a digital input or output.
The digital input can be configured to reset the tare if it is active for more than 3 seconds.
The digital output can be linked to a series of events (for example alarm on threshold, stable weighing etc ...).
In the case of configuration as a digital input or as a digital output, the connection diagram is as follows:
ANALOGUE OUTPUT CONNECTIONS (Z-SG ONLY)
The Z-SG device has an analogue output that can be configured for either voltage or current.
The operating ranges are 0-10V for the voltage output, 0-20 mA for the current output.
It is possible to freely configure the output in the entire range.
The wiring diagrams are:
Analogue voltage output:
