16 3.635.5275.253
5) Continuous operating level (4-20 Ma) and modulating water control valve
Select the next screen by setting the “automatic-manual” key in “manual” position:
To activate the valve opening push the button + (ON), and press – (OFF) to shutoff it.
Repeatedly pushing the + button it is possible to choke the valve opening (in %) to obtain the continuative
level control also in manual mode.
During manual operation, the functioning level, when reached, is displayed (in mm) but it doesn’t control
the shutoff of the valve. The shutoff valve condition is obtained by pushing the button – (OFF) up to the “0”
percentage. The open valve condition is observable on the screen by the valve’s image fully pointed out
and the notice “feed water” in reverse.
The shutoff valve condition is identiable on the screen by the valve’s image contour outlined, and the notice
is without reverse.
In any case, manual operation is provided with block (latching) alarm devices. These alarms will close the
valve while on the screen will be displayed the typology of the anomaly and the lighting of the warning light.
For latching alarms, before opening the valve it is necessary to eliminate the cause of the alarm, then push
the button in reset blocks front panel.
Screen 9
To Next Page
Loading...
Need help?
General
