7.4 Electrical connection
DANGER!
Fire hazard. Pressure surge: parts may burst and cause fatal injury. The equipment may not be used in a
highly combustible area under any circumstances.
The electrical connection of the dosing pump must be
made
according to the local rules and regulations and
may only be carried out by technical personnel.
NOTICE!
The metering pump has to be plugged into a grounded power outlet.
NOTICE!
The metering pump is double-insulated and grounded. To avoid incorrect metering after the process is
finished, the dosing pump must be locked electrically and hydraulically.
7.5 Hydraulic connections
The MAGDOS LB is delivered with loose hose connections. The tubings to the pump may not be under pres-
sure und must be equipped with a tension safeguard. Cut the tubing neatly and in an exact right angle to
the appropriate length. Chose the tubing connection according to the character of the tubing (material, inner
diameter, wall thickness) in order to considerate the maximum pressure load.
e
c
d
b
a
Fig. 7.2: Example 4/6 tubing connection Example 6/12 tubing connection
To mount the union nuts
a
/
b
and the clamping ring
c
, pull them onto the tube
e
. Then push the tube
as far as it will go on the connection
d
. Tighten the union nut
b
. Place the connection
d
with the gasket
to the dosing head and tighten it with the union nut
a
.
When connecting the tubing connections observe the flow direction and the horizontal positioning of the
dosing head. The dosing head is marked with an arrow
g
. The suction line
h
must always point to the
bottom. Consequently the arrow
g
and the pressure line
f
always point to the top. This is irrespective from
the positioning of the dosing head to the drive (see fig. 7.1).
f
g
h
Fig. 7.3: Dosing head flow direction
Installation | Operation & Maintenance Instructions |
11
