Chemglass CG-1171-20 - Manual (Page 3)

2 Description
2.1 General Notes
■ It is essential that you read these Operating
Instructions before putting the pump into service.
Follow them for all applications as they help
prevent dangerous situations and damage.
■ The LIQUIPORT® diaphragm transfer pumps
have been developed by KNF especially for
laboratory and industrial applications that
demand high chemical resistance, reliability and
simple operation.
2.2 Areas of Application
Transfer of neutral and aggressive liquids in
laboratories, industrial areas and systems.
2.3 Features of the LIQUIPORT®
■ They are self-priming, can operate dry and are
quiet.
■ By using chemically resistant materials such as
PTFE, PVDF, FFPM etc. for parts that come into
contact with the liquid, almost all neutral and
aggressive liquids can be handled.
■ Due to the compact construction it requires very
little
work surface.
■ The flow can be adjusted manually on every
model.
■ Maintenance
free.
2.4 Operating Principles
The LIQUIPORT® pump is an oscillating positive
displacement pump. An eccentric converts the rotary
motion of the drive shaft into an oscillating movement
of a connecting rod, which in turn transmits its motion
to the diaphragm. In combination with inlet and outlet
valves, this diaphragm motion produces the pumping
action.
3 General Safety Instructions
WARNING
■ Ensure the pump is only used for its intended
purpose.
■ The unit may not be used in areas in which there
is a danger of explosion.
■ Only connect the pump into fused sockets.
■ Observe all relevant safety and accident
prevention regulations.
■ Before working on the pump, disconnect it from
the power supply!
■ Only qualified people may open the parts of the
equipment that contain live parts.
■ The Operating Instructions should always be kept
readily available and near the equipment.
■ When cleaning the unit, make sure that no liquid
enters the housing.
■ Use only genuine spare parts from KNF.
■ If you return your KNF pump for repair, please
state for what medium it has been used for,
especially if this is very aggressive/dangerous.
■ If the pump has been used for dangerous or
highly aggressive media, it must be cleaned
before being returned.
4 Transport and Storage
■ When packing the pump, make sure that it is
properly secured inside the package.
■ The package must be strong enough to withstand
any rough treatment it may receive during
transport.
➨ Use original packaging
5 Setting Up
5.1 General advice
As you set the pump up please pay attention to the
following points.
■ Ensure that the pump is on a stable surface and
is standing upright on its 4 rubber feet.
■ The pump can be mounted from underneath with
four
screws.
■ All special safety instructions for the liquid/gas
being handled must be observed.
■ The head materials, compression fittings and
tubing must be resistant against the liquids being
pumped.
➊ Check that the connections between the
compression fittings and Teflon tubing are
secure.
5.2 Operating Conditions
■ Permissible ambient temperature +5 to +40°C.
■ The presence of solids in the medium being
handled may lead to faulty operation of the pump.
■ Permissible temperature of the medium being
handled is +5 to +80°C.
■ The pump should not operate against a closed
system.
■ The pump is limited against which pressure /
vacuum it can start running. The ideal conditions
are when the pump can start at atmospheric
conditions as then the priming is guaranteed.
6 Pump and Controls
6.1 Pump
Power Supply RC-Plug (only
RC Version)
Pump Head
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