Ecolab Elados EMP KKS E60 - Functional Description

417101774_EMP_KKS_E60_E.doc - 8 - Rev. 8-03.10
4 Functional description
4.1 Mechanical functions
The ELADOS
®
EMP KKS series of metering pumps take the form of electrically (motor)
driven diaphragm displacement pumps.
The membranes are for the pre-delivery, the piston is for the metering. Because of the
permanent overpuls refeeding this metering pump works self venting.
The metering pumps are suitable for use with clean, non-abrasive metering media with a
viscosity of up to 200 mPas (measuring manner: Brookfield).
The metering pump is operated by a non-blocking synchronous motor and a connecting rod-
eccenter gear.
Fig. 4.1
When the diaphragms (pos. 1) moves towards the
gear, the valve (pos. 2) suck up the metering
product. Simultaneously, vacuum grow out of the
compression chamber of the metering piston
cylinder unit (pos. 3). When the inspection hole
(pos. 4) has been released, the pre-delivered
metering product flows into this chamber.
During the pressure motion metering happens over
the valve (pos. 5); the surplus product get returned
into the container by the return valve (pos. 6). The
stroke adjustment (pos. 7) regulates the volume
delivered during the operation from 0 - 100 %. This
changes the immersion depth of the cylinder. The
pre-delivered amount keeps constant.
WARNING
To protect the metering device, the use of a suction pipe with an empty reporting device
and dirt arrestor (available from our range of accessories) is highly recommended!
The empty reporting device switches off the pump if it falls below a certain level (in the
container).
4.2 Electronic functions
The pump may be used in three different operation modes:
INTERNAL Manual metering function (factory setting)
EXTERNAL pulse control
EXTERNAL standard signal control (mA)
The pump is operated using four keys (Fig. 5.5, Pos 2, 3, 4 and 5)
(see "chapter 9.3
Key functions").
The operating indicator is shown on a graphical display (Fig. 5.5, Pos 6).
4.3 Additional electronic functions on the EMP KKS E60
PLUS
• Oval gear meter connection
• Oval gear meter evaluation
• Metering regulation with a oval gear meter, type OGM
PLUS
• Automatic calibration is possible thanks to the oval gear meter, type OGM
PLUS
• Splitting of the metering lock/pulse/metering monitoring/oval gear meter inputs into
multiple connections to simplify the external connections.