Chopin AlveoPC, Руководство по обслуживанию

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14 Chapter 1 Use and maintenance: reminders and further information
Maintenance manual
2016/02
AlveoPC
FREQUENCY
■
All the control test results (curves and computed values) must be
precisely kept.
We recommend keeping a hard copy in addition to a backup on the
PC.
■
The following frequency for these control tests is recommended:
❏
Every 100 tests or after 1 month (whichever is the earlier).
Note: Users of Alveo instruments are strongly recommended to
be members of a laboratory comparison round robin such
as BIPEA, AACC,…; in which case the rules of this circuit
should be observed.
❏
After a major overhaul of instruments, for instance after:
- replacing the mixing blade,
- adjusting the extraction passage,
- realigning the mixer's bowl and gear motor,
- replacing the Alveo spacers,
- cleaning the Alveo pneumatic measuring circuit,
- replacing an Alveograph pressure sensor.
❏
If in doubt about any measurements.
CONTROL SAMPLE
■
Quantity
An adequate quantity of sample flour must be kept for a sufficient
period to monitor the performance of the instruments.
■
Storage conditions
❏
Initial characterization
The characteristics of the sample must be measured carefully. In
particular, accurately measure:
❏
the moisture content of the sample,
❏
its alveographic characteristics (a minimum of 3 tests),
Reminder:The milled sample must be stored for at least 6 days after
production, and for no more than 15 days, at room tem-
perature (20°C) in a well-ventilated environment.
■
Storage
The control sample must be kept:
❏
In a clean, dry container made of inert material, in a refrigerated
room at constant temperature, and must be labelled,
❏
for a period not exceeding admissible limits
1
.
Note: It can be stored at low temperature
(–20°C for instance); to that end, the usual freezing rules
must be observed.
1. The maximum storage time is 2 months at 4°C.