Installation, Operation, & Maintenance Instructions
IOM J500.35
2021.04
JMT
● +1.440.572.1500
20
Smart Smoothing
The
Smart Smoothing Filter
is designed to smooth out
variations in the measured level from the float rotating or
leaning in the chamber. It works by averaging the
previous measurements over the specified # of seconds
and calculating that as the measured level. The factory
default setting of 3 seconds.
If the float were to move extremely rapidly (for example
by hand) this would show some delay in updating
measured level.
Media Level Dampening
Damping is available on the Current Output, this will
damp the change in output current, not in the actual
measurements.
Pulse Width, Gain and Trigger Level Filter
The pulse width filter is designed to remove signals
detected by the sensor that do not match the signature of
the float of the instrument. A float will provide a large,
long signal, while something like spurious electrical noise
will provide a short signal. The pulse width filter
calculates the amount of time the signal is above the
specified trigger voltage and rejects it if it is too short.
This, in combination with the
Rate of Change Filter
makes it extremely difficult for any electromagnetic noise
to affect the instrument.
Three channels will be available. Channel 1 and Channel
2 are the output of the two individual crystals in sensor.
Channel 3 is their combined input which is what is used
by the level measurement instrument.