Caleffi 6000 - Manual (Page 40)

15
Log
The “log” is a FIFO list (loop buffer) that is continually updated and records parameters relating to the adjustment and disinfection phases that
took place during the day.
The last 40 days are saved, after which the data relating to the less recent day are overwritten and so on.
Every hour, the hourly flow and return temperature averages are saved to Eeprom, while the alarms are saved at the time they occur.
At any time it is possible to view the average hourly values of the current day (obviously the ones already recorded).
Disinfection data are saved when disinfection ends.
It is possible to view the log on the display (via the specific menu item) or remotely via the RS485 serial interface.
The parameters saved in the log are:
- Date (day, month, year).
- Selected program. This is saved when disinfection starts.
- tDIS: actual disinfection time (in steps of minutes).
When the set program is 0 or 1A, this parameter is the time when the temperature of the flow probe was above SET2.
When the set program is 1B or 2, this parameter is the time when the return probe was above SET3.
This is helpful when it is less than tMIN, to understand how much greater the span of TIME ON: TIME OFF should be to complete the
disinfection.
- TRMAX: maximum temperature of the return probe during disinfection (if a disinfection was completed on that day).
- TRMIN: minimum temperature of the return probe during disinfection (if a disinfection was completed on that day). It is calculated from the
time when the return probe measured a value greater than SET3, beginning from the time when the disinfection starts being effective.
- Alarms AL1, AL2, AL3, AL4, AL5, AL6, AL7 if they were activated on that day in particular.
- 24-hourly average flow temperature values.
- 24-hourly average return temperature values.
- Marker indicating whether the previous data are reliable. Used in the event of a reset, clock time adjustment, change of date and any other
event that might have made the stored data unreliable.
If no disinfection was completed on that day, then the related fields will contain a default value.
If any faults have occurred in one or both probes, the hourly average data will be displayed by dashes.
If there are any “gaps” or unavailable data due to a change in date, time, etc., the cells will contain a default value and will be shown on the
display by a few dashes.
Deleting the log
The log can be completely erased from the non-volatile memory, by following the procedure below:
Select the “temperat. log” menu item and press the OK button.
The display shows the data from the first log record available.
Now press and hold the Shock button for at least 1 s.
The display shows a blank screen, which is then gradually filled, indicating that the delete operation is in progress; the LCD display then shows the menu
selection screen (higher level) and the log has been completely erased.
If you now go into the log submenu, the only record available will be the one for the current day; note that the temperatures for all hours previous to the
current one have also been deleted.
IMPORTANT: once initiated, the delete operation cannot be cancelled.
Battery
The appliance has an integrated rechargeable battery (three 150 mAh cells), used to keep the internal clock running and maintaining the
selected settings even if there is an electric supply failure.
While in operation, the level of charge in the battery is checked periodically (about every 24 h) and the recharge function is activated if
necessary.
When the battery recharge function is active, the “Btr” icon appears in the working window (adjustment mode).
Battery charging indication Battery fault indication
If the parameter readings are not within the specified range, it means the battery is damaged and must be replaced.
If a battery fault is detected, the corresponding alarm appears (see the Alarms paragraph):
In principle, a battery fault should not affect any of the appliance functions, unless there is also an electric supply failure.
To have the battery replaced, the appliance must be returned to the factory.
hiSTORIc 06/04/2006
tDIS 060 PGRM 1A
TR MAX 58¡ TR MIN 48¡
ALARM ---45-7- hiSTORIc 06/04/2006
h 01 02 03 04 05 06
TF -----------------
TR ----------------- hiSTORIc 06/04/2006
h 07 08 09 10 11 12
TF 50 50 50 51 49 52
TR 47 47 47 47 46 48
t
tuesday 13/02/2006
adjustment
running
tuesday 13/02/2006
battery
alarm