Bjong – User Manual – V1.0 - pg.52
12.3 Analog inputs
Bjong is equipped with 2 active analog inputs, with range 4-20mA and 0-10V
(user can connect to the desired signal by using the dedicated wires – see
wiring paragraph).
Inputs can be configured independently, in order to guarantee to be the most
suitable to the installation needs.
It is also possible to define a correlation curve, up to 20 points, to have a specific engineering value
corresponding to the read one.
Input type: it is referring to the type of signal connected. It
is possible to choose between tension (0-10V) or current (4-
20mA).
Warm Up time: waiting time, in seconds, before the value
is read, after turning on the sensor in discontinuous mode.
It is possible to choose among a list of preset values.
Begin-scale/Full scale: values saved to zero value (0V or
4mA) and maximum value (10V or 20mA).
Offset: compensation value. It is added constantly to read
value.
Curve type: select the customized curve to enter a new
engineering curve correlating the read value to the input
with a calculated engineering value.
Using the Calibration button you can access the additional
functionality to calibrate the input and define the cut off
value for noise (Cut Off). For calibration it is necessary to
have a device generating the reference current and voltage.
Calibration is performed on the start of the scale and the full
scale.
Before tapping the set button, be sure to connect a signal
generator with the correct value.
The “Show parameters” button allows you to view some
technical calibration parameters.
After making the configuration, make sure to log the variables of interest correctly in the
appropriate section.
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