Diaphragm Metering Pump MEMDOS E / DX
BW 1 04 02 / 3
Lutz-Jesco GmbH
Improved changes are always reserved without notice.
Wiring diagram of the drive motor
- 3-phase power supply
Attention!
To avoid early wear of the gear drive adhere to the
correct rotation direction of the motor by all means:
looking at the fan wheel, counterclockwise.
- MEMDOS E
Y-connection ∆-connection
(standard allocation)
- MEMDOS DX
Drain pipe
Drainage or leakage from the separating chamber
must be routed with a certain downward slope to the
containment tank. By no means must the drain pipe
be returned directly to the chemical through the
tank cover because otherwise effervescent media
might enter the pump gear. The drain pipe may only
be routed to a collecting tank free of gases (with a
downward slope) or to a collecting funnel - also with
a downward slope - above which the pipe ends at a
sufficient distance. Leakage can be returned via
the funnel through the tank cover. Besides, possible
leakage can be seen at the funnel.
4. Electrical connection of pump
- The electrical connection of the pump must
be made according to the local rules and may
only be carried out by technical personnel.
- Cable type und cable cross section of the
supply lines must be selected according to the
motor data.
- The cable passage to the motor terminal box
must be made professionally. We recommend
gland screw connections with traction relief.
- The required protection class must be ensured
by professional installation of the electrical
connections.
Electrical connection data
(other types upon request)
Pump Voltage Power Current
size [Volt] [Watt] [A]
Memdos 400/230 50 0.50/0.87
E4 ... 50 3~ 50 Hz
Memdos 230 50 0.70
E/DX4 ... 26 1~ 50 Hz
Memdos 400/230 250 0.90/1.55
E50 ... 156 3~ 50 Hz
Memdos 230 120 1.15
E/DX50 ... 156 1~ 50 Hz
Memdos 400/230 370 1.06/1.84
E160 ... 380 3~ 50 Hz
Memdos 230 250 2.25
E/DX160 ... 380 1~ 50 Hz
- Special versions
For other special versions please refer to the
corresponding separate circuit diagrams.
- The electrical connection of the MEMDOS DX is
shown and described in chapter 7, MEMDOS DX
control unit.
Collecting funnel
Z1
U2
U1 Z2
Z1
U1
U2
L2
L1
N
P
L2 L1NPE
blue
black
brown
green/yellow
green/yellow
black
brown
blue
