Setting Temperature Alarm Limits; Figure 9 Temperature Alarm Limits And Hysteresis - M&C PSS Series Instruction Manual

12.1

SETTING TEMPERATURE ALARM LIMITS

You use the temperature alarm limits to determine when the alarm is triggered. HIGH dT and LOW dT are
independently adjustable from dT = 2 to 8 °C [dT = 3.6 to 14.4 °F]. In the following figure, the upper temperature
alarm limit is set at 8 °C [46.4 °F] and the lower one at 3 °C [37.4 °F].
The hysteresis is set to "1".
T
Cooler
alarm
8 °C
no alarm
5 °C
no alarm
alarm
3 °C
Figure 9 Temperature alarm limits and hysteresis
To set the temperature limits:
1. Enter the PIN (see chapter "11.2 PIN Entry").
2. Tap and hold the
3. The display shows the code entry.
The code for setting LOW dT is "013". If you enter this code, you can change the lower temperature alarm limit.
The hysteresis setting can be changed via code "014". The hysteresis ensures that no "fluttering" occurs in the
event of a temperature alarm. The differential value dT = 1 or 2 °C [1.8 or 3.6 °F] can be entered.
Note
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hysteresis = 1
HIGH dT = 3 °C
LOW dT = 2 °C
hysteresis = 1
-key for a short moment.
The code for setting HIGH dT of the channel is "012". Confirm the code with
the -key, then the display of the pre-set value appears.
After confirming the code, the default value "3" appears. The value is blinking
and you can enter values from dT = 2 to 8 °C [dT = 3.6 to 14.4 °F] with the
and -keys.
Press to confirm your change or
making any changes. After changing or aborting the display shows the
cooler temperature again.
If HIGH dT or LOW dT is reduced to "2", the hysteresis is automatically
reduced to the differential value dT = 1 °C [1.8 °F].
SS5C, SS5C/2, SS5C/3 | 1.00.00
upper temperature alarm limit
set value
lower temperature alarm limit
t
to leave the code range without
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