WIKA CF1H - Manual (Page 21)

Operating Instructions Temperature Indicating Controller CF1H
V 1.2
•
01/2007 - 21 -
Loop break alarm Mode to set the time for Loop break alarm
time setting activation assessment.
Setting value Setting range: 0 … 200 minutes
[Factory adjusted as 0 min.]
MODE This display is indicated only when the option [2AR or 2AL] is applied.
Loop break alarm Mode to set the span for Loop Break Alarm
span setting activation assessment.
Setting value Setting range:
0 … 150 °C (Thermocouple, except T and RTD
MODE without a decimal point)
0.0 … 150.0 °C (Thermocouple T and RTD
with a decimal point)
0 … 1500 (DC input, current or voltage)
(Decimal point place follows the selection.)
[Factory adjusted as 0 °C]
This display is indicated only when the option [2AR or 2AL] is applied.
PV/SV display mode
Actual Main setting
Temperature value
Loop break alarm
The alarm will be activated when the process variable (PV) does not rise as much as the span or greater
within the time it takes to assess the loop break alarm after the manipulating value has reached 100 % or
the output high limit value.
The alarm will also be activated when the process variable (PV) does not fall as much value as the span or
greater within the time it takes to assess loop break alarm after the manipulating value has reached 0 % or
the output low limit value.
When the control action is Direct (Cooling), the alarm acts conversely.