Clock Error; Symbol Description - Carel 2N Manuel D'utilisation

After stopping the alarm, it will be possible to reset the desired values of the parameters.
If on the contrary the reconstitution fails, it means that the temperature data previously stored are, at least in part, cannot be
retrieved. In this case the alarm starts and the fi xed mask below appears:
Even though the Datalogger keeps on sampling the temperatures, the management of the stored data is no more ensured, and
so it is advisable to contact CAREL.
Furthermore, there is the case in which the instrument shows some irregularities of the Clock during the normal operation.
In this case a "virtual clock" begins functioning and ensures, as far as possible, the data acquisition and storage. The user is
informed on this possibility by the blinking of the LED coupled with the "clock" button, in addition to the usual alarm procedure.
The mask revealing this alarm is:
In the presence of this mask, it is advisable to insert the date again (see "Enter button - Parameter Modifi cation Mode"). If this
mask persists, contact CAREL for assistance.
Anyway, the virtual clock is activated.
The temperature storing
The temperature data are stored together with the date and hour and further information that appear with the stored temperature
As regards the encoding of this information, see table 2.
Note that a selection of the sampling time lower than 14 minutes (also for a time period) does not ensure any more the data
conservation for the period established by the law (one year).
Alarm codes
Cod. Description
1 probe 1 temperature alarm
2 probe 2 temperature alarm
3 --------------------------------------
4 --------------------------------------
5 probe 1 error
6 probe 2 error
7 --------------------------------------
8 --------------------------------------

Symbol description

P identifi ers the fi rst datum recorded at the power on together with the switching on hour
T identifi ers the fi rst datum recorded after the hour selection by user
D defrosting activated
# situation of open door
Err+ short-circuited probe
Err- open probe
! alarm of high or low temperature
* alarm of high or low temperature and situation of open door
System failure:
LOST PARAMETERS
System failure:

CLOCK ERROR

Cod.
9
10
11
12
13
14
15
Description
open door 1 error
open door 2 error
--------------------------------------
--------------------------------------
blackout error
fl ash fair
clock error
Tab. 1
Tab. 2