Nivus OCM F, Инструкция по эксплуатации

Страница: 58 / 110

Instruction Manual
OCM F
page 58 OCM F - rev. 05 / 06.04.2018
>Temperature<
Output of measured water temperature as
analog signal.
>Signal quality< Calculates from the ratio between valid read-
ings to total readings resulting from velocity
measurement, output as analog signal. This
function is not conceived for control purposes,
but for monitoring, remote analysis and for
determination of sensor cleaning intervals.
Use >Flow rate<, >Level<, >Velocity<, >Temperature< and >Signal
quality< to adjust the settings below (see Fig. 23-22):
>Span<
>Value at 0/4 mA<
>Value at 20 mA<
>Error mode<
>Constant
current<
The analog output can be set to output a con-
stant current which is independent from any
readings.
For constant current enter the desired initial
current (max. 21 mA) (see Fig. 23-23).
1
Analog output
2
Start measurement
3
Stop measurement (obstruction, standing water or no water etc.)
Fig. 23-21 Analog output signal quality
The Fig. 23-21 signal quality shows the analog output signal if the signal quality has been
programmed. The signal will steeply rise at the beginning of the measurement (Fig. 23-21/2).
The signal is damped in order to avoid heavy signal fluctuation.
As soon as e. g. the sensor is going to be removed from the medium or no velocity can be
measured at all (Fig. 23-21/3), signal first slopes gently getting steeper subsequently.