EV87 General features
Graphical display with 4 lines.
Software class A.
RS232 output for modem connection.
Data storage period: 5 years.
6-module DIN housing.
Two weekly programs with three time bands per day.
A daily program with three time bands.
Clock charge lifetime: 5 years.
Measurement range of external probe: -30..+40°C.
Measurement range of delivery/limit/auxiliary probe: 0..+99°C.
Maximum 20 slaves can be connected.
Electric features
Power supply: 230Vac.
Consumption: 5 VA.
4 output relays: mixing valve and pump, boiler with multistage burner (from 2 to 4), boilers in cascade (2 to 4) with choice of main boiler rotation, 2 cascade boilers with two-stage burner with choice of main boiler rotation.
2 digital inputs can be used as alarms.
1 4..20mA input can also be used to drive the configurable relay.
1 output 0..10V (3mA maximum load) with proportional regulation.
1 configurable relay (auxiliary probe – 4..20mA sensor).
Contacts rating: 5A – 250Vca (resistive load).