Enofrigo MUSIC Serie Manual De Instrucciones página 85

manuale_SALAD_BAR_LINE_MUSIC_GB.qxp 13/07/2006 11.11 Pagina 37
Thisdeactivation, however, does not involve an alarm signal.
Default: 'AL' =0 => low temperature alarm disabled.
A A H H : : H H i i g g h h t t e e m m p p e e r r a a t t u u r r e e a a l l a a r r m m
This is used to determine the activation threshold for the high temperature alarm.
Relative threshold for high temperature alarm = (set point) + (value of AH)
Absolute threshold for high temperature alarm = value of AH.
I I m m p p o o r r t t a a n n t t : If the threshold AH is selected as relative, the value for disabling the alarm
is 0, while if selected as absolute, the alarm disabling value is 200.
W W a a r r n n i i n n g g s s f f o o r r t t h h e e r r e e l l a a t t i i v v e e t t h h r r e e s s h h o o l l d d : :
• the value of AH does not indicate the alarm temperature, but the maximum permissi-
ble deviation from the set point; consequently, changing the set point automatically
changes the high temperature alarm, while the maximum deviation allowed (=AH)
remains fixed;
W W a a r r n n i i n n g g s s : :
• the high temperature alarm has automatic reset: this means that if the temperature
returns above/below the minimum value envisaged, the alarm signal is cancelled auto-
matically
• in the event of a control probe alarm, the high temperature alarm is reset and moni-
toring reinitialised.
Default: AH=0 => high temperature alarm disabled.
A A d d : : T T e e m m p p e e r r a a t t u u r r e e a a l l a a r r m m d d e e l l a a y y
Indicates after how many minutes the temperature alarm is signalled when the tempe-
rature threshold is exceeded.
W W a a r r n n i i n n g g s s : :
• Setting a delay for signalling the temperature alarm may help eliminate false alarms
due to interference on the probe signal or brief situations (for example, the door to the
cold room opened for a short period);
• No temperature alarms are generated during the defrost and continuous cycle proce-
dures.
• The temperature alarm is delayed by the time 'd8' after the defrost and by the time
'c6' after the continuous cycle. At the end of these two times, the temperature alarm, if
detected, is signalled without waiting for the time set for 'Ad'. If times 'd8' and 'c6' are
set on zero, the temperature alarm is signalled after the time 'Ad'. As already indicated
by the default value for parameters 'AL' and 'AH', the instruments are programmed at
our factory as default with the relevant thresholds, and the high and low temperature
alarms are disabled. The alarms, when enabled, activate the buzzer, if enabled, and
show a code on the display: 'HI' for the high
temperature and 'LO' for the low temperature alarm. The following conditions generate
the temperature alarms:
• high temperature alarm: the temperature measured by the virtual control probe is
above the threshold set for parameter 'AH';
• low temperature alarm: the temperature measured by the virtual control probe is
below the threshold set for parameter 'AL' .
Default: 'Ad'=120 => 120 delay, in minutes, with respect to the signalling of the tempe-
rature alarms.
English - 37
Code CT55900010 Rev. 03 - 07/'06