E-ITN 40
Manual for installation service and operation M2021/8a EN
· Current temperature of radiator sensor (e.g. 27.65°)
· Current temperature of environment (e.g. 27.65°
SM
)
· Maximum temperature of radiator sensor for past annual billing period (e.g. ¯27.6°)
· Maximum temperature of radiator sensor for past monthly billing period (e.g. _27.6°)
· Average temperature of environment for past annual billing period (e.g. ¯27.6°
SM
)
· Average temperature of environment for past monthly billing period (e.g. _27.6°
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)
· Date (e.g. 20.01.)
· Time (e.g. 12-30)
· Total consumption (scrolled – moves 1 character per 1 sec., begins with character C)
Display turns off after 30 seconds of inactivity and returns to first menu item.
4.3.2. Last year of battery life
Battery lifetime is programmed in the microprocessor memory and the last year of battery lifetime is indicated
on LCD by blinking of the special symbol: BAT. After finishing this time the symbol stays displayed
permanently. Calculated battery lifetime is 10 years + 2 years reserve.
4.4. ERROR MODE
In error mode the notice Error is permanently displayed and allocator does neither measure temperatures,
count the increase of consumption nor transmit measured data. Allocator just actualizes real time. Allocator
switches from working mode to error mode automatically after registration of serious error (e.g. fault in A/D
converter, when the power supply of microprocessor was interrupted and loss of data in RAM memory
occurred, etc.).
Allocator backups important data to permanent memory daily. Data in this memory are saved even if the
power supply is interrupted. Even in the case of battery failure these data are not lost. Saved data could be
read by special tools. NFC chip has a memory. Into this memory is backed up current data every day.
If E-ITN 40 stops working, you can read this memory using NFC.
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