RECO SensorLine RM-DPC Micro FP - Differential Pressure Monitor (Parameters 01, 04, 05)

RM-DPC Micro FP Documentation
RDN 10000531 11 13.05.2013
6.2 Differential pressure monitor (Parameters 01, 04, 05)
In order to implement a differential pressure monitor with the switch points ∆p min alarm (for a ∆p pre-
alarm) and ∆p max alarm, Parameter 01 "Contr. type" must be configured to "dP monitor". (For more on
this refer to points

+

"Configuration keys" on page 7 and section 5.3 "Setting parameters".)
∆p pre-alarm: If the increasing differential pressure exceeds the configured ∆p min alarm switch point
(Parameter 04), relay contact 15, 16 closes and contact 14, 15 opens (see diagram below). If the differ-
ential pressure falls below the ∆p min alarm switch point, relay contact 15, 16 opens and contact 14, 15
closes.
∆p max alarm: If the increasing differential pressure exceeds the configured ∆p max alarm switch point
(Parameter 05), relay contact 18, 19 closes and contact 17, 18 opens (see diagram below). At the same
time, relay contact 15, 16 opens and contact 14, 15 closes. If the differential pressure falls below the
∆p max alarm switch point, relay contact 18, 19 opens and contact 17, 18 closes.
The setting ∆p min alarm switch point (Parameter 04) = 0 deactivates the differential pressure
monitoring function ∆p min alarm.
The setting ∆p max alarm switch point (Parameter 05) = 0 deactivates the differential pressure
monitoring function ∆p max alarm.