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Concept 420 i
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• The range of the rate of delivery can be varied by potentiometers P1 and P2.
• With potentiometer P1 the rotor speed for a current signal of 4 mA + 2 digits (=4,04 mA) is
set.
• With potentiometer P2 the rotor speed for a current signal of 20 mA is set
• The rotor speed (rate of delivery) results form a beam between the two operational points which
are set with potentiometers P1 and P2 at 4,04 mA and at 20 mA. With this feature it is possible
to adapt the pump to different working conditions and a desired behaviour of the controlling is
achieved.
• With a current signal 4 mA and below, the drive of the pump is stopped.
• On terminal 11 and 12 a suction pipe with float switch for package-drum-empty-detection can be
installed. If a package-drum-empty is detected, the signal LED L3 blinks and an external voltage
at terminal 6 is switched from terminal 7 to terminal 5 for example to drive an external optical
(SWB 8009) or acoustical warning signal.
• If no suction pipe with float switch is installed, terminals 11 and 12 must stay bridged!
Concept 420 i
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10
Mounting and safety regulations
Pump must be installed in a place protected from mechanical damage, vapours, acids and lyes.
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Pump must be installed above the level of the barrel or package drum, containing the product.
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Pump casing vertical, tube connections facing downwards
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Warning: When pumping dangerous products such as acids, lyes, chlorous or biotechnologi-
cal products all regulations concerning the product have to be obeyed and all safety measures
have to be carried out. Especially safety measures (f.e. collecting basin) necessary in case of a
damage of the pump tube have to be carried out to prevent damages and to inhibit any dan-
ger to persons and environment. The pump must not be used for inflammable products!
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The use of this pump in systems, where the malfunction or the defect of this device would
cause a critical process state is forbidden.
In case of large delivery heights pump must be mounted in a manner, that suction height is
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small and the pressure height is higher. Peristaltic pumps work better when stressed on pres-
sure. Each meter of height increases the resulting pressure by 0,1 bar multiplied by the
density of the conveyor product.
An operational and installation manual which must be stored discoverable on site is to be
•
handed over to the operator of the arrangement. The operator is to be pointed out in particular
to the observance of the assembly and security regulations. Also a security data sheet of the
conveyor product is to be handed over to the operator of the arrangement so that he can carry
out the additional security measures, that are necessary to prevent damage from man and mate-
rial, caused by the liquid.
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The operator of the arrangement is so to be trained that he can take the dosage system out of
operation or replace it by himself respectively when required by consulting a company electri-
cian in the case of false functions or failures. Likewise "on site" a responsible person must be
determined who can carry out necessary set work and exchange spare and wearing parts.
Basic condition for all possible liability and guarantee cases is the purpose-engaged use of the
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device, the professional installation according to the operational and installation manual under
additional attention of local circumstances, electric regulations and chemical security data
sheets, the regular conscientious realisation the described servicing work, the careful attention
of the manual and the observance of the given duty-cycles and the other technical limitations.
Installing the unit
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On the inner sides of the big coloured front hood in the region of the tube retainer there are two
slots of about 9 mm length. Loosen front hood carefully with a screw driver and with the help
of these slots and remove front hood by hand. (see also page A I)
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After removing the front hood four casing screws (recessed head screws) are visible. Unscrew
and pull off device from installation casing.
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Mount installation casing f.e. with the shipped screws and fixings at the wall. Make sure the
installation casing is not twisted when fastened on an uneven surface with screws.
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Important: Use the four screw-caps (5) to seal the case against moisture
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Peel off connection cable, strip the insulation of the stranded conductors and fix end splices. If
thicker cables are used, dismantling should already begin at the inner side of the screwed cable
gland. Introduce cable into the screwed cable gland. Insert cable or stranded conductors in the
sides of the installation casing and lead them using the little guiding parts, so that the cables
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