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Figure 4-33.PV1 SHIFT Application
4.3.1.1.4.10 SP1 Range
SP1L (SP1 low limit value) and SP1H (SP1 high limit value) in setup menu are used to
confine the adjustment range of SP1.
Example: A freezer is working in its normal temperature range -10 C to -15 C. In order to
avoid an abnormal set point, SP1L and SP1H are set with the following values:
SP1L = -15 C SP1H = -10 C
Now SP1 can only be adjusted within the range from -10 C to -15 C.
Figure 4-34.SP1 Range
4.3.1.1.4.11 Dwell Timer
Alarm 1 or alarm 2 can be configured as dwell timer by selecting TIMR for A1FN or A2FN,
but not both, otherwise Error will appear. As the dwell timer is configured, the parameter TIME is
used for dwell time adjustment. The dwell time is measured in minute ranging from 0 to 6553.5
minutes. Once the process reaches the set point the dwell timer starts to count from zero until time