9.2.2 Back water in the boiler
If the water level in the boiler rises up to the wire electrode in the left-hand container (L), the electronic impurity detector
(A1 in the circuit diagram) switches the unit off and the red pilot lamp "Clean" (II) lights up. This means that more water
entered the unit than could flow off. Possible causes are tubes outside the unit that are not installed as described (see
chapter 6), or scale formations that cause a blockage in the water outlet tube inside the unit. A defective quantity regula-
tor in the outlet of the solenoid valve (see cooling water requirement, chapter 11) might also cause more water to flow
into the unit than can flow off. For trouble shooting purposes, an additional function drawing of the internal water flow is
available on request.
Re-initiation after low water
9.3
To re-initiate, let the unit cool down and fill in water to cover the heating elements
as described in chapter 7 Initiation.
The triggered low water cut-off must be reset. To do so, loosen the black cap nut at
the bottom left-hand side of the Distillation Apparatus. Inside the thread a small
white plastic pin can be seen that has to be gently pressed inside (e.g. with a pen)
until a clicking sound can be heard.
Only then switch the unit back on again.
The LAUDA-GFL Distillation Apparatus Puridest is made of first-class material. Nevertheless, the unit should only be
subjected to mechanical strain within sensible limits.
Make sure that no fluids come into contact with cable connections or the
electrical parts inside the unit! The powder-coated surfaces of the unit can be cleaned with mild detergents, if necessary.
Servicings, repairs or modifications must be carried out according to the General Engineering Standards by a competent
electrician.
Only original spare parts must be used. Always demand a detailed confirmation by the person in charge (company, date,
signature) on the kind and volume of the tasks carried out.
10 Disposal of Old Units
LAUDA-GFL will take responsibility, within the scope of the legal directives, for an environmentally sound handling and
disposal of all used LAUDA-GFL units as of the production year 1995 that are returned to us free of charge and will have
it materially recycled. Before the unit is returned, a legally binding declaration must be provided from the sender confirm-
ing that the unit is free from harmful and/or hazardous contaminations as well as from hazardous substances caused by the
previous use of the unit.
LAUDA-GFL laboratory apparatus are exclusively designed for industrial use and may not be disposed of through public
waste disposal authorities.
EAR Registration Number WEEE-ID.NO.DE 67770231
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