User’s & Technical Manual –
ANALOG LIQUID LEVEL SENSOR ALLS6000
GELEC
Industrial Electronics
PAGE
21
DRAINING MODE (D)
Draining mode (D) is suitable for applications where the controlled tank fills and you need
to DRAIN it, in order to maintain the liquid into the working region.
In draining mode, the relay at the beginning is de-activated (provided that the level is
detected under the TL) and the tank is filling and activates when the level reaches the TL. At
the following operating circles, the relay activates each time the level reaches the (TL) and
deactivates when the level reaches the (DL). (fig 21)
fig. 20
fig. 21
OPERATING MODE SELECTION (F/D)
You can see the mode that the ALLS6000 unit operates by the flashing colour of the LED
just after the device power supply. According to the preprogrammed operating mode, the
led flashes for three seconds with the corresponding color.
Flashing RED : DRAINING MODE
Flashing GREEN : FILLING MODE
The operating mode (F/D) can be changed with the following procedure.
Press the
FUNCTION BUTTON
before the unit power supply.
With the button pressed supply the unit. The led alternates colour (green-red).
Keep the button pressed till the led stabilizes. The current color represents the
selected operation mode, which is the opposite of the previous one.
✓
Release the button. The new selection is automatically saved.
