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11.2.5 Display
11.2.5.1 Units
The product can display current measured values and coun-
ted volumes in different units.
Setting range:
ml/s + l, l/h + l, l/min + m³, gal/min +gal, l/min + l
Factory setting: ml/s + l
Example: ml/s + l
The flow is displayed here in the unit "ml/s" (millilitres per
second) and the daily quantity is displayed in "l" (litres).
Gal are US gal with 1 gal = 3.785 l.
11.2.5.2 Display filter
The displayed flow can be filtered additionally. This filter is a
mean value of the last 16 s. It can be switched on and off via
the menu.
Setting range: Off, on
Factory setting: Off
11.2.5.3 Turn display
The display can be turned in 90° increments.
Setting range: 0°, 270°, 180°, 90°
Factory setting: 0°
11.2.5.4 Alarm flashing
The display flashes in the event of an error and this function
can also be switched off
Setting range: On, off
Factory setting: On
11.2.6 Analogue output QA
11.2.6.1 Function
The analogue output is available as an active current output
of 0–20 mA or 4–20 mA. It can be configured via the display
menu.
Fig.13: The current output is active
Setting range: 0–20 mA, 4–20 mA, off
Factory setting: 4–20 mA
The current output shows currents between 0 and 22.6 mA as
the measure for the current flow or state of the metering tube.
This means for the example of 4–20 mA:
– 20 mA indicates the high set point of the measuring
range to be considered
– 4 mA indicates the low set point of the measuring
range to be considered
– 3.5 mA indicates an empty metering tube
NOTICE
Important:
▶ The high set point and the low set point can be freely
parametrized. The value of the high set point must be
greater than the value of the low set point so that the val-
ues are saved. The low set point corresponds to 0 mA or
4 mA as standard and the respective end value of the
measuring range is set to 20 mA.
▶ If the current output is to be used, the maximum resist-
ance Ri must not be greater than 500 Ω as it is not en-
sured otherwise that the measurement device can supply
the maximum value.
Analogue output characteristics
– 0 to 20 mA
For the representation, the "Min. range" was used as 0 % and
the "Max. range" was used as 100%.
Current output 0 to 20 mA
Value [%]
Current [mA]
Fig.14: Characteristic 0 to 20 mA
Value Current [mA]
Less than 0% 0
0% (min. range) 0
Between 0% and
100%
Linear interpolation of 0 to 20 mA
100% (max. range) 20
Greater than 100% 20
– 4 to 20 mA
For the representation, the "Min. range" was used as 0% and
the "Max. range" was used as 100%.
11 Commissioning
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