Subclause
6.8.5 – Indication and access
ü
The committee strongly believed that the markings required
for ALARM SIGNAL inactivation states needed to be standardized.
û
This is even more important than the standardization of the
names of ALARM SIGNAL inactivation states that are standardized to eliminate the
confusion of multiple names with different meanings.
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OPERATOR confusion regarding the status of an ALARM SIGNAL inactivation state is a known HAZARD.
ü
The committee has chosen internationally standardized
symbols for this marking.
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Overall, safety will be increased when OPERATORS find consistent marking (symbols) with
consistent meaning for the ALARM SIGNAL inactivation states across all equipment.
? This collateral standard
does not specify how the various ALARM SIGNAL inactivation states are to be invoked.
עדיף היה
לו התקן היה
לפחות ממליץ
על אמצעים
מסוימים ומצביע
על הסיכוני שם
אמצעים אחרים
Many approaches currently exist. They
include:
– single-function hard keys;
– hard
keys that cycle through various states (e.g., AUDIO PAUSED, AUDIO OFF, and all ALARM SIGNALS active);
– soft
keys;
– menu
selections.
לדעתי צריך
להמליץ על
השיטה
הראשונה בלבד.
כל השיטות
האחרות הן
בעייתיות
ü
The committee anticipates that ALARM SYSTEMS designed to comply with this collateral
standard will continue to use these methods and also might use new methods such
as voice recognition.
כל ההצהרות
בנושאי
עתידנות
טכנולוגית הן
חסרות ערך
לתקינה. בתקינה,
עדיף להתמקד
בקיים ובמוכח,
ולשלול את
הבלתי מוכח.
ü
When a
"control" is used to invoke an ALARM SIGNAL inactivation state, this collateral standard
permits that it be marked with the appropriate symbol as indicated in Table 5.
ü
Certainly,
the symbols from Table 5 should only be used for the functions indicated.
M In the case
of a multifunction control, a different marking (symbol or wording) can be
used, e.g., a hard key that cycles through ALARM PAUSED, ALARM OFF, and all ALARM SIGNALS active could be marked with IEC
60417-5307(DB:2002-10).
עדיף לשלול
פתרונות כאלו,
שמאלצים הסטת
קשב מהחולה
לתפעול
התצוגה
M The committee faced a
dilemma in the choice of symbols for ALARM CONDITIONS and for ALARM SIGNAL inactivation states. The familiar Bell-X
symbol (IEC 60417-5576 (DB:2002-10)) has been used for many years, but some MANUFACTURERS have used it to mean “AUDIO OFF” or “AUDIO PAUSED” while other MANUFACTURERS have used it to mean “ALARM OFF” or "ALARM PAUSED". Thus there is substantial
confusion about what the symbol means among clinicians (OPERATORS). Both what is off (just auditory
signals or auditory signals and visual signals), as well as whether this is a
permanent loss or a timed loss of ALARM SIGNALS, have been indicated by Bell-X. In
either case, however, OPERATORS have recognized that the Bell-X includes the loss of alarm
sound.
אפשר להציג
את זה אחרת:
לכל מערכת,
בכל מצב, ניתן
להגדיר פעולת
השתקה מועדפת
אחת. עבור פעולה
זו, משתמשים
בסמל הפעמון
המושתק.
פעולות השתקה
אחרות, אם
מספקים אותן,
צריכות להיות
נגישות פחות.
û
A HAZARD occurs, however, if an OPERATOR looks for the familiar Bell-X, does not
see it, and mistakenly concludes that the auditory ALARM SIGNALS are on. In other words, OPERATORS can not understand that the Triangle-X
symbol (IEC 60417-5319 (DB:2002-10)) indicates that part of the ALARM SYSTEM is in the AUDIO OFF or AUDIO PAUSED state. On that basis, the committee
decided to permit, or perhaps encourage, the use of the Bell-X as an additional
symbol whenever the Triangle-X is used. In that way, OPERATORS would see the familiar Bell-X at any time
that a portion of the ALARM SYSTEM is in the AUDIO OFF or AUDIO PAUSED state. Alternatively or additionally, a
text message could be added.
הפתרון
של התקן הוא
פתטי!
û
Another possible symbol that the committee considered is
the Loudspeaker-X (IEC 60417- 5436 (DB:2002-10)). This has traditionally been
used to mean “sound mute” and it could be interpreted to produce an effect upon
both ALARM SIGNALS and INFORMATION SIGNALS. This collateral standard requires that
if this symbol is used as an indicator for muting both INFORMATION
SIGNALS and ALARM SIGNALS, the appropriate Bell-X is also
indicated.
אותו כנ"ל
û
In the event of ALARM PAUSED or AUDIO PAUSED, the X becomes a dashed-X where the
dashed- X means limited duration or timed rather than the solid-X that means
permanent.
סיבכו את
המשתמש לגמרי
ü
Concern was
raised about the amount of dark and light spaces of the dashed-X so that it can
be legible on displays of differing resolution. MANUFACTURERS are reminded that icons made from symbol
graphics need to be adapted to the display resolution when used.
ü
The use of
a countdown timer (which shows the time remaining in ALARM or AUDIO
PAUSED state), adjoining the icon, is encouraged.
ü
The
presence of a countdown timer adds additional distinctiveness to the icon for ALARM PAUSED or AUDIO
PAUSED so that they can more easily be distinguished
from ALARM OFF or AUDIO OFF.
ü
Allowing the OPERATOR to set duration of an AUDIO PAUSED or ALARM PAUSED interval longer than that determined to
be appropriate by the RESPONSIBLE ORGANIZATION can lead to HAZARDS when a new OPERATOR becomes responsible for the equipment.
See also the rationale for 6.7.
