Publicidad
Idiomas disponibles
Idiomas disponibles
7
Function selection button: PRIMING / 35 L/h – 0 bar / 20 L/h – 2 bar / 10 L/h – 5 bar /
– 10 bar
8
Pump fed/stand by TWO-COLOUR LED
9
STOP and START button
10
Frequency adjustment knob (%) of the number of injections
Controls and warnings description
a)
START/STOP SWITCH (9), it controls the pump start and stop. In stand-by conditions (STOP) the LED (8) flashes
green at long intervals: in this condition, pressing the function selection button (7) enables to select the desired
operating mode.
b)
LED (8), indicates the injections of the metering pump, it flashes red when the pump is running.
c)
FLOW RATE ADJUSTMENT, KNOB (10), adjusts the number of injections/minute of the pump up to 100% of the
maximum flow rate.
d)
FULL SCALE CHANGE, with the pump in standby, press the BUTTON (7) to select the operating mode.
e)
LEVEL CONTROL: the metering pump is designed for level control (see paragraph "Level alarm"); in level alarm the
pump stops dispensing and the LED (8) goes to steady RED.
f)
PRIMING FUNCTION: to facilitate priming, the pump is equipped with a PRIMING function. It is recommended to
open the purge bypass on the pump body (for hydraulic versions equipped with one) during priming operations. The
air purge fitting must always be connected to the relative tube with return to the suction tank.
Activation of this function is performed as follows:
to select the PRIMING function, press the button (7) until the green LED (6) lights up;
press the START/STOP button;
the pump starts delivering injections at the PRIMING frequency (80 pulses/minute) until the operator
presses the START/STOP button again.
Fig. 9 - Level probe connection
Level alarm
The metering pump contains a male connector for the
input connection of a level switch (supplied on request). To
connect this accessory, use a flat or Phillips-type
screwdriver on the screw (1) then remove the cap (2) or the
connector (3), depending on the version, pulling it in the
direction of the red line, uncoupling it from the male
connector located on the metering pump (Fig. 9). The
connector insert (3) must be removed from its container and
turned so that its key (4) is positioned as indicated (Fig. 10)
for correct coupling with the corresponding male connector
mounted on the chassis. To remove the connector insert (3)
remove the screw (1) and using a flathead screwdriver act
on the two tabs on the seat where the screw (1) was located
and remove the part. Connect the 2 wires of the level probe
one to
PIN 3 and the other to PIN 4, indistinctly, then
reassemble the connector (3). Insert the connector (3) on the
corresponding male connector on the chassis and tighten
the screw (1).
8 L/h – 7 bar / 4 L/h
ENGLISH 29
Publicidad
