3.9 Chartless function
The controller provides the temperature recorder function.
In the case of recorder-equipped units, checking for the temperature on the chart recorder will provide
ease of monitoring the state of tripping.
Since recent controllers are available for long and accurate temperature recording, non-recorder-
equipped units have been increasingly used. In this case, in place of the recorder, the following three
"Chartless functions" are available.
Chart Indication Function
Pull Down Time Indication Function
Chartless Code display Function
3.9.1 Chart indication function
The temperature record data is indicated in a graphic chart on the LCD panel in the chart indication
mode.
The displayed log period is selected from 12 hours (
HOURS on the time base) or 6 days (
DAYS
on the time base).
The displayed intervals are 2 hours for 12 hours log (
HOURS) and one day for 6 days log (
DAYS).
The indication of the data during the defrosting is flickered, and the indication of the other chart data is lit on.
●
LCD panel
2
1
2
1
3-53
●
Example of chart indication
Indication for
temperature
changing state
Indication for
temperature
change trend
1
2
Temperature
range
Selected time
base is lights up.
UNDER
SP –5
°
C
IN RANGE
OVER
SP+ 5
°
C
1
HOURS
2
DAYS
–1
–2
–3
–4
–5
–6
–2
–4
–6
–8
–10
–12
Time range
SP
SP– 5
°
C
SP+ 5
°
C
SP+ 2
°
C
SP– 2
°
C
–6days
–5days
–4days
–3days
–2days
–1day –12hours –10hours –8hours –6hours –4hours –2hours
Ex.1
Ex.2
SP+10
°
C
SP+20
°
C
1
Ex.1
2
UNDER
SP – 5
°
C
OVER
SP + 5
°
C
IN RANGE
The graphic chart of the temperature change for 6 day log
(time base : 2 (DAYS))
The graphic chart of the temperature change for 12 hours log
(time base : 1 (HOURS))
The arrow indicates the temperature change trend when all segments
are in the same temperature range.
Ex.2
1
HOURS
2
DAYS
–1
–2
–3
–4
–5
–6
–2
–4
–6
–8
–10
–12
UNDER
SP – 5
°
C
OVER
SP + 5
°
C
IN RANGE
1
HOURS
2
DAYS
–1
–2
–3
–4
–5
–6
–2
–4
–6
–8
–10
–12
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