Retsch XRD-Mill McCrone, Руководство пользователя

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8 Cleaning and service
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WARNING
Risk of a fatal electric shock
- An electric shock can cause injuries in the form of burns and cardiac
arrhythmia, respiratory arrest or cardiac arrest.
• Do not clean the blender under running water. Use only a cloth dampened
with water.
• Disconnect the power supply plug before cleaning the blender.
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WARN
The device must always be switched off and
any interventions for cleaning or servicing purposes
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8.1 Cleaning
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• To clean, add approx. 15 ml of liquid to the grinding jar, put the grey lid back
on and place the grinding jar back in the mill again. Vibrate the jar for a
further 15 seconds, remove it and then pour the contents into the beaker or
bowl
• Repeat this proce
(As a rule one further cleaning cycle is sufficient).
• Wait until the product and rinsing liquid in the beaker or bowl has settled,
then pour off the clear liquid
acetone may be added after pouring the liquid off, and the mixture then
drained again.
accelerated by using acetone in place of water. A dried product can be
obtained quickly using a volatile
• Either a blank sample or a small quantity (e.g. < 0.1 ml) of the next sample
can be ground for about one minute and then discarded to prevent cross
contamination of samples
second sample
• The polypropylene jars and the grinding bodies may become dirty when
grinding insoluble, highly pigmented or black materials
these are sectile or oily such as graphite or some heavy metal sulphides.
The soiling is frequently also pre
material. This soiling is often considered to be a potential source of cross
contamination, but this is not the case. The fact that the soiling remains on
the grinding jars and grinding bodies is evidence that the
being passed on to subsequent samples.
• Separate grinding jars and grinding bodies can be provided where trace
elements in the
has been seen that in geochemical tests, where it is particularly important to
determine trace elements accurately, the effects of cross
be reduced to a negligible level by thoroughly cleaning between the
individual grinding c
• The pigmented areas are not generally visible when grinding surfaces are
made of hard alloys or hard metal carbides or borides
present. It is therefore very helpful to examine the surfaces of such a mill
under ultraviolet li
Cleaning and service
Cleaning and service
WARNING
Risk of a fatal electric shock
An electric shock can cause injuries in the form of burns and cardiac
arrhythmia, respiratory arrest or cardiac arrest.
Do not clean the blender under running water. Use only a cloth dampened
with water.
Disconnect the power supply plug before cleaning the blender.
WARNING
The device must always be switched off and disconnected from the mains before
any interventions for cleaning or servicing purposes.
clean, add approx. 15 ml of liquid to the grinding jar, put the grey lid back
on and place the grinding jar back in the mill again. Vibrate the jar for a
further 15 seconds, remove it and then pour the contents into the beaker or
bowl.
Repeat this process as many times as necessary to clean the grinding jar.
(As a rule one further cleaning cycle is sufficient).
Wait until the product and rinsing liquid in the beaker or bowl has settled,
then pour off the clear liquid. If water has been used as grindi
acetone may be added after pouring the liquid off, and the mixture then
drained again. The draining and drying phases can be considerably
accelerated by using acetone in place of water. A dried product can be
obtained quickly using a volatile grinding liquid.
Either a blank sample or a small quantity (e.g. < 0.1 ml) of the next sample
can be ground for about one minute and then discarded to prevent cross
contamination of samples. The grinding jar is then ready for the prepared
second sample.
The polypropylene jars and the grinding bodies may become dirty when
grinding insoluble, highly pigmented or black materials
these are sectile or oily such as graphite or some heavy metal sulphides.
The soiling is frequently also present after grinding a harder or abrasive
material. This soiling is often considered to be a potential source of cross
contamination, but this is not the case. The fact that the soiling remains on
the grinding jars and grinding bodies is evidence that the
being passed on to subsequent samples.
Separate grinding jars and grinding bodies can be provided where trace
elements in the ppm (parts per million) range complicate work
has been seen that in geochemical tests, where it is particularly important to
determine trace elements accurately, the effects of cross
be reduced to a negligible level by thoroughly cleaning between the
individual grinding cycles.
The pigmented areas are not generally visible when grinding surfaces are
made of hard alloys or hard metal carbides or borides
present. It is therefore very helpful to examine the surfaces of such a mill
under ultraviolet light after grinding ultraviolet-excited phosphor
Cleaning and service
29
An electric shock can cause injuries in the form of burns and cardiac
Do not clean the blender under running water. Use only a cloth dampened
Disconnect the power supply plug before cleaning the blender.
W0012
disconnected from the mains before
clean, add approx. 15 ml of liquid to the grinding jar, put the grey lid back
on and place the grinding jar back in the mill again. Vibrate the jar for a
further 15 seconds, remove it and then pour the contents into the beaker or
ss as many times as necessary to clean the grinding jar.
Wait until the product and rinsing liquid in the beaker or bowl has settled,
If water has been used as grinding liquid,
acetone may be added after pouring the liquid off, and the mixture then
The draining and drying phases can be considerably
accelerated by using acetone in place of water. A dried product can be
Either a blank sample or a small quantity (e.g. < 0.1 ml) of the next sample
can be ground for about one minute and then discarded to prevent cross-
The grinding jar is then ready for the prepared
The polypropylene jars and the grinding bodies may become dirty when
grinding insoluble, highly pigmented or black materials, in particular when
these are sectile or oily such as graphite or some heavy metal sulphides.
sent after grinding a harder or abrasive
material. This soiling is often considered to be a potential source of cross-
contamination, but this is not the case. The fact that the soiling remains on
the grinding jars and grinding bodies is evidence that the pigment is not
Separate grinding jars and grinding bodies can be provided where trace
(parts per million) range complicate work. However it
has been seen that in geochemical tests, where it is particularly important to
determine trace elements accurately, the effects of cross-contamination can
be reduced to a negligible level by thoroughly cleaning between the
The pigmented areas are not generally visible when grinding surfaces are
made of hard alloys or hard metal carbides or borides, even when they are
present. It is therefore very helpful to examine the surfaces of such a mill
excited phosphor.