EVCO EVK614N9 - Manual (Page 5)

Evco S.p.A. • Code 104K614E00 • page 5/7
PT • 31/09
13 TECHNICAL DATA
13.1Technical data
Container: grey self-extinguishing.
Frontal protection rating: IP 65.
Connections: terminal board with screws (power supply, inputs
and outputs), 6-pole connector (serial port) 4-pole connector (at the
remote indicator on request); sprung extractable terminal board
(power supply, inputs and outputs) on request.
Temperature of use: from 0 to 55 °C (from 32 to 131 °F, 10 ... 90%
relative humidity without condensate).
Power supply: 12 VAC/DC (or 12-24 VAC/DC), 50/60 Hz, 3.5 VA
(approx) or 115 ... 230 VAC, 50/60 Hz, 5 VA (approx).
Keeping the clock data in the case of a power cut: 24 h with
charged battery.
Battery charging time: 2 min without interruptions (the battery is
charged by the instrument power supply).
Alarm buzzer: built-in.
Measure inputs: 2 (room probe and evaporator probe) for PTC/
NTC probes.
Digital inputs: 2 (door micro switches and safety thermostat) for nor-
mally open/normally closed contact (potential-free contact,5 V 1 mA).
Field of measurement: from -50.0 to 150.0 °C (from -50 to 300 °F)
for PTC probe, from -40.0 to 105.0 °C (from -40 to 220 °F) for NTC probe.
Resolution: 0.1 °C/1 °C/1 °F.
Digital outputs: 4 relays:
• compressor relay: 16 A res. @ 250 VAC
(change-over contact)
•humidifier relay: 8 A res. @ 250 VAC (change-
over contact)
•evaporator fan relay: 8 A res. @ 250 VAC
(NO contact)
•resistances relay: 8 A res. @ 250 VAC (change-
over contact).
The maximum current accepted on charges is 10 A.
Serial port: port for communication with the supervision system
(through a serial interface, via TTL, with MODBUS communication
protocol), with the graphic diagram (through a serial interface) or
with the programming key.
Other communication ports (on request): serial port for the
communication with the remote indicator.