DS Europe 500QD Series, Инструкция по эксплуатации

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2.4 CALIBRATION EQUIVALENT LOAD VALUE
(= Calibration with external electronics):
When yellow load cell conductor (black sheath cable) or grey conductor (grey sheat
DIN47100 cable) with yellow conductor, or pin 5 with 2 of connector, the load cell provides
an electrical signal that simulates a Kg load, applied onto the load cell, written on the load
cell certificate.
Only load cells with not amplified mV signal have a built-in calibration circuit (with the
exception of series BC300 that does not have enough room inside for housing the calibration
circuit).
This calibration procedure can be used only when there is no load or preload or tare onto the
load cell.
Some load cells can be used either in tension and compression therefore the calibration
circuit signal could have an inverted polarity, compared to the normally measured signal,
therefore after calibration it might be needed to reverse the connection of the load cell signal
conductors (example: green with white conductors) in order to get a positive electrical
signal.
The procedure for calibrating the electronic weighing system is as follows:
Introduce the calibration signal.
Adjust the span (=gain) of the signal-conditioner until the digital display shows the
calibration value.
Remove the calibration signal and check the zero; if the zero needs further adjustment still
continue the procedure with successive approximations.
Load cells with inside analog or digital electronics, because of CE regulations, cannot have
the built-in calibration circuit.
Calibration circuit is to be deactivated after calibration: disconnect the calibration
conductors or connector pins (example: disconnect yellow conductor from green and keep
yellow insulated).
2.5 E = EXPONENT OF 10
An example clarifies better the meaning of this datum:
Sensitivity: 2.01146E-03 V/V FS means: 2,011.10
-3
V/V FS = 2,011 mV/V FS.