Log
The “log” is a FIFO (First In - First Out, loop buffer) that is continually updated and records parameters
relating to adjustment and disinfection phases that occurred during the day. Data are stored for the
last 40 days, after which the data for the first day are overwritten, etc.
The hourly average mixed outlet and return water termperatures are save to Eeprom every hour, and
alarms are saved at the time they occur. The average hourly values of the current day can be viewed
at any time. The disinfection data are saved when disinfection ends. The log (via specific menu item)
can be viewed on the display or remotely via the RS485 serial interface.
The parameters saved in the log are:
-Date (day, month, year)
-Set 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 mixed outlet
water was above SET2.
When the set program is 1B or 2, this parameter is the time when the temperature of the return water
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: Max. temperature of the return water sensor during disinfection (if a disinfection was completed
that day).
-TRMIN: Min. temperature of the return water sensor duriong disinfection (if a disinfection was com-
pleted that day). It is calculated from the time when the return water sensor 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 the day in question.
-24 hourly average values of the mixed outlet water temperature.
-24 hourly average values of the return water temperature.
If no disinfection was completed on that day, then the related fields will contain a default value.
If there have been any faults in one or both sensors, the hourly average data will be represented by
dashes. If there are any gaps or unavailable data due to a change of date, time, etc., the cells will
contain a default value and will be represented on the display by dashes.
22
Keyboard Lock (Access PIN code)
Menu navigation can be prevented by enabling the keypad lock function. The keypad is
then unlocked by entering a PIN code. If the lock function is enabled, the keypad is locked
automatically after a timeout of 10 minutes starting from the last button press.
When the
keypad lock function is active, a padlock symbol appears on the LCD working screen (on the right).
Also, if the lock function is active and a button is pressed while the working screen is displayed, the PIN
code input screen appears: The code is entered by selecting the first digit using the “UP” and “DOWN”
buttons, then confirming by pressing OK. The second digit is entered in the same way, etc.
When the last digit is confirmed, if the code is correct, the user can access the menus; if the code is
incorrect, the PIN entry screen appears again. If the timeout elapses, the display shows the working
screen again.
If the PIN code is lost or misplaced, the lock function can be overridden (the PIN code is
forced to 0000) by pressing a button on the back of the panel (for 5 sec), or by sending a
special command through the RS485 interface.
CONFIRM NO
PIN 0000
But t ons Lock
CONFIRM NO
PIN 2600
But t ons Lock
Tuesday
12/ 06/ 2016
T
M
127
O
F T
R
120
O
F
ADJUSTMENT
RUNNING
