Scaling Analouge outputs
VA 500 Bi-directional English 1.24 Seite 8 von 56
4 VA 500 with Display
Input of internal pipe diameter and scaling of the analogue outputs is done via the keyboard on
the display, details and sequence see chapter "Operation".
Please enter inner diameter of the pipe!
Values indicated in the display:
Actual value in m³/h, m³/min etc.
Counter in m³, l, cf
as well as pulse output, 1 pulse per m³, l, cf
are calculated according to the diameter set. Please take the analogue value for flow rate
4…20 mA from the tables on pages13 to 20
4 mA always corresponds with the starting value 0 m³/h, 0 m³/min. The final value 20 mA can be taken
from the tables on pages 13 to 20
Example VA 500 Standard:
1" with inner diameter 25.0 mm, 4 mA = 0 m³/h and 20 mA = 122.2 m³/h
2" with inner diameter 53.1 mm, 4 mA = 0 m³/h und 20 mA = 600.0 m³/h
5 VA 500 without Display
No adjustments are necessary at the consumption sensor.
The respective final values for the flow rate can be taken from the tables on the pages 13 to 20.
Analogue start value 4 mA is always set as scaling value 0 m³/h, 0 m³/min etc.
Analogue end value 20 mA is the final value, see tables pages 14 -19.
Example VA 500 Standard:
1" with inner diameter 25.0 mm, 4 mA = 0 m³/h and 20 mA = 122.2 m³/h
2" with inner diameter 53.1 mm, 4 mA = 0 m³/h und 20 mA = 600.0 m³/h