Miele G 7893 Manual

							Loading the machine
–Arrange the load so that water can
access all surfaces. This ensures
that they get properly cleaned.
–Do not place items to be cleaned
inside other pieces where they may
be concealed.
–Hollow instruments must be
throughly cleaned, internally and
externally.
–Hollow vessels should be inverted
and placed in the correct baskets
and inserts to ensure that water can
flow in and out of them unrestricted.
– Deep-sided items should be placed
at an angle to make sure water runs
off them freely.
– Tall, narrow, hollow items should be
placed in the centre of the baskets to
ensure better water coverage.
– Mobile units or baskets with an
adapter must engage correctly.
–
The spray arms must not be blocked
by items which are too tall or which
hang down in their path.
–
It is advisable to use instruments
made of surgical steel only, as these
are not susceptible to corrosion.
–
Nickel-plated instruments and
coloured anodised aluminium
instruments are not suitable for
machine processing.
–
Plastic items must be thermally
stable.Preparing the load
^Empty all containers before loading
into the machine (paying particular
attention to regulations regarding
infectious diseases and epidemics).
^Remove culture medium (agar) from
Petri dishes.
^Pour away blood or other body fluids,
and remove any dried on blood.
^Remove all stoppers, corks, labels,
sealing wax residues, etc.
,Ensure that acids and residual
solvents, especially hydrochloric
acid or chlorides, do not get into the
wash cabinet.
In certain cases, soiling that is difficult
or impossible to remove, e.g. silicone
grease, sticky labels, etc., which could
affect the cleaning results, must be
removed manually before being
machine processed.
It is the user's responsibility to decide
whether items contaminated with
substances such as microbiological
material, pathogens, facultative
pathogens, genetically modified
material etc. should be sterilised before
being machine processed.
Contaminated instruments can be
placed directly in the baskets or inserts
in the machine without pre-treatment
(no soaking required).
Areas of application
21 
						

							Water connection spring
adapter
Make sure that the spring adapter for
water connection engages correctly
when a basket or injector unit is
inserted in the machine. It must be 4-5
mm higher than the water connection
inlet in the machine.
If it is not, adjust the adapter
accordingly.
^
Loosen lock ringa.
^
Push up adaptorb.
^
Tighten lock ringc.
Height adjustable top basket
The top basket can be adjusted above
and below the middle position by 2 cm.
Different height items can be
processed in this machine depending
on the position the top basket is set at
and the inserts used.
To adjust the top basket:
^Pull out the top basket until a
resistance is felt; lift from the runners
and remove.
^Unscrew the roller bearings on both
sides of the basket with a 7mm
spanner and reposition as required.
Areas of application
22 
						

							Laboratory utensils
Wide-necked laboratory utensils, e.g.
beakers, wide-necked conical flasks
and Petri dishes, or cylindrical vessels,
e.g. test tubes, are washed and rinsed
internally and externally by the rotating
spray arms.
To achieve this, they need to be
positioned in a full, half or quarter
insert, and then placed in an empty
lower basket or into an upper basket
with a spray arm.
For narrow-necked utensils, e.g.
narrow-necked conical flasks, round
bottomed flasks, measuring flasks and
pipettes, a mobile injector unit or
injector basket is required.
Mobile injector units and baskets for
narrow-necked laboratory utensils
are supplied with their own
operating instructions.The following instructions relate only to
basic preparation and loading of
laboratory utensils.
–Petri dishes and similar should be
placed in the correct insert with the
soiled side facing the centre.
–Place pipettes upright in the insert,
with the opening uppermost.
–Use nets to secure items in order to
avoid glass breaking.
–Quarter inserts should be placed in
the mobile unit with at least 3 cm
between them and the edge of the
mobile unit.
Areas of application
23 
						

							Upper basket O 188/1
For various inserts, e.g. E 103 for test
tubes, AK 12 for funnels and beakers,
E 118 for Petri dishes, or E 134 for
microscope slides.
Lower basket U 874/1
for various inserts, e.g. E 136 for Petri
dishes and E 403 for watch glasses.E 106/2
For wide-necked beakers, measuring
cylinders or medicine bottles.
E 109
For beakers.
Areas of application
24 
						

							Adding rinsing agent
The dispensing of rinsing agent in
the final programme programme via
DOS 2 has to be activated by a
Miele service technician.
Rinsing agent is necessary to ensure
water does not cling and leave marks
on items, and to help items dry faster
after they have been washed.
Because residues of rinsing agent
remain on the surface of items after
they have dried, it is important to check
the suitability of the rinsing agent being
used.
Rinsing agent is poured into the
storage reservoir, and the amount set is
dispensed automatically.
The rinsing agent reservoir holds
approx. 180 ml.
,Only fill the rinsing agent
reservoir with rinsing agent
formulated for washer-disinfectors.
Do not fill it with cleaning agent.
This would damage the reservoir.^Open the door fully.
^Undo the screw cap.
^
Add rinsing agent until the level
indicator is dark (see arrow in the
illustration). Use a funnel if
necessary.
^
Screw the cap back on.
^
Mop up any spilt rinsing agent. This
prevents over-foaming occurring
during the next programme.
Dispensing chemical agents
25 
						

							Add rinsing agent indicator
^Add rinsing agent to the rinsing
agent reservoir when the Add rinsing
agent indicatorHlights up.
Setting the dosage
The dosage adjuster in the opening has
settings adjustable from 1 to 6 (1-6 ml).
It is set to 3 (3 ml) at the factory.
If spots appear on items:
^Use a higher setting.
If clouding or smearing appears on
items:
^Use a lower setting.
Dispensing chemical agents
26 
						

							Adding neutralising agent
Neutralising agent (pH-level: acidic)
neutralises residues of alkaline cleaning
agents on the surface of instruments
and utensils.
If the cleaning agent being used is
mildly alkaline, you will need to use
a phosphoric acid based
neutralising agent.
If using a neutral enzyme based
liquid cleaning agent, you will need
to use a citric acid based
neutralising agent.
The neutralising agent is automatically
dispensed in Programme stage Rinse 2
following the Main wash cycle of a
programme. The dispensing system
container needs to be filled with
neutralising agent and vented.
In programmeBINORGANIC,
neutralising agent is also dispensed
for an acidic Pre-wash.
See "Programmable functions" for
details on how to vent the dispensing
system and set the dosage.^Place the red container with
neutralising agent on the floor next to
the machine or in an adjoining
cupboard.
^Insert the siphon tube into the
container and screw on securely
(observing the colour code).
Dispensing chemical agents
27 
						

							Add neutralising agent
indicator
^Refill the neutralising agent container
or replace it with a full container
when the Add neutralising agent
indicatorwlights up.
Please remember to refill the
container in good time. Do not let it
get empty.
Dispensing chemical agents
28 
						

							Adding cleaning agent
,Only use cleaning agents
suitable for washer-disinfectors. Do
not use cleaning agents designed
for domestic dishwashers.
A liquid cleaning agent can be
dispensed via the optional DOS module
K 60 (DOS 1, dispensing pump for
liquid cleaning agent). The machine
must be set up for this by a Miele
approved service technician. The DOS
module is connected externally.
See "Programmable functions" for
details on how to vent the dispensing
system and set the dosage.
We recommend using a DOS
module (available as an optional
extra) for the dispensing of liquid
cleaning agent.
Liquid cleaning agent has to be used
on ProgrammeCORGANICA.
Adding powder cleaning agent
Powdercleaning agent may only be
dispensed on the inside of the door
on programmes without a pre-wash
when the following upper baskets
are being used. In all other cases,
liquid cleaning agent must be
dispensed via DOS 1:
– O 175/1
– O 176/1
– O 183
– O 184
– O 187
– O 190/1.
Powder cleaning agent must be placed
in the powder cleaning agent dispenser
before every programme (except with
D"PRE-RINSE" and6"DRAIN").
Dosage example:
Approx. 10.5 litres of water are taken
into the machine in the "Main wash"
programme stage.
30 g of cleaning agent will be required
for a cleaning agent concentration of
approx. 3 g/l.
Follow manufacturer's instructions if
they differ.
Dispensing chemical agents
29 
						

							^Press the button on the powder
cleaning agent dispenser. The flap
will spring open.
The flap is always open at the end of a
programme.
^
Add powder cleaning agent to the
compartment.
^
Close the dispenser flap.
,At the end of the programme,
check that there are no cleaning
agent residues remaining in the
dispenser.
If there are, you will need to repeat
the programme.
For environmental reasons, please
consider the following points when
selecting a cleaning agent:
^What level of alkalinity is required to
achieve the correct level of cleaning?
^Is active chlorine required for
disinfection or oxydation (pigment
removal)?
^Are tensides required for dispersal
and emulsification?
^Only use specially formulated
cleaning agents which are mildly
alkaline and free of active chlorine in
thermal disinfecting programmes.
Some types of soiling may require
different combinations of cleaning
agents and other additives. The
Miele Professional Department will
be pleased to advise you.
Dispensing chemical agents
30