Carel 2N Manuel D'utilisation page 33

Date, hour and alphanumeric fi eld ("Room 1" in the example) are selectable by entering the mode "MODIFY PARAMETERS".
In the presence of particular conditions (alarms, defrosting) the unit of measure of the temperature (°C ) is being replaced
with a special character indicating the type of alarm or the cell state. As regards the description of the special characters and the
management of the alarm conditions, see the description of the "ALARMS" mode.
By pressing the buttons it is possible to scroll the temperature data previously stored (i.e. the "historical"), followed by
the relevant possible alarm characters (in this mode the LED relevant to the
If at the storage moment the instrument was confi gurated for two probes, two temperature values will be displayed (only one
value otherwise). Other special characters show special situations such as a power supply failure, special character the letter "P"
(Power ON) in a time selection one "T" (Time) is being displayed, whereas one "D" indicates a "cell defrosting" (see parameters 6
and 7 in the mode "MODIFY PARAMETERS".
In the absence of data of the historical, the following mask appears:
It is possible to select a date from which to begin to scroll the historical, by selecting the "CLOCK" mode. If no button is pressed for
at least one minute, the Datalogger automatically displays the main mask.
INFORMATION Mode
A prolonged pressure (5s) of the
masks are being scrolled:
Available Memory
352 days
Last Alarm 10
02/05/96 15:42
Last Download
02/05/96 13:15
Last Power On
02/05/96 12:42
User Name
Operator Name.
--------
No Data Logged
button enters the information mode. With the
Storage day number still available before the old ones are being overwritten. The maximum
available storage occurs after a Download.
Date and hour of the last alarm numeric code associated with the alarm (in the table no. 1
a list of codes is shown).
Date and hour of the last Download.
Date and hour of the last Power ON.
buttons lights up).
buttons the following information