Digital thermostat EXPERT NANO 3CF

EXPERT NANO 3CF		Brochure download



3 RELAYS DIGITAL THERMOSTAT


The EXPERT NANO 3CF is 3 relays electronic thermoregulator designed to control refrigerated counters, display windows and static or ventilated refrigeration units with off-cycle or electrical defrosting. It is fitted with two analogue inputs for NTC or PTC temperature probes, one digital input, three relays for the compressor control, fans and defrosting function (the defrosting relay can be configured as light command) and buzzer. The regulator can be also configured for heat application. Available version for real time clock defrost.

Applications • Control of refrigerated counters, display windows and refrigeration units. Main characteristics • Can be configured for hot or cold applications. • Defrosting can be configured for off-cycle, heating element or cycle inversion and frequency and durationcan be set. End-of-defrosting can be based on time or temperature. • Clock for programmed defrost (RTC) (on some models). • Relay for controlling the compressor, evaporator fans and defrosting elements (defrost output can be configured like light output). • Configurable input as evaporator probe or dirty condenser alarm probe. • Key operated manual START/STOP defrosting. • Key operated ON/OFF. • Cold room light ON/OFF switch with key or by means of door switch (if defrost output is configured like cold room light). • Display/adjustment of temperature with decimal point. • Internal buzzer for acoustic signals. • Flat front surface for easy cleaning and keys of ample dimension which can be customized with various colours (on request). • High brightness display with increased icons and figures. • PEGO programming philosophy guaranteeing immediate start-up. • IP65 front protection. Two-fold fastening options: clips / screws. • RS485 serial connection with Modbus-RTU or Telenet protocol. • Voltage, relay capacity and terminal type depending on model. • External transformer for model 3CF11 (optional).

TECHNICAL CHARACTERISTICS	EXPERT NANO 3CK01	EXPERT NANO 3CF01	EXPERT NANO 3CF02	EXPERT NANO 3CF11

Dimension	93x37x59 mm	93x37x59 mm	93x37x59 mm	93x37x59 mm

Drill hole template	71x29 mm (+0,2/-0,1 mm)	71x29 mm (+0,2/-0,1 mm)	71x29 mm (+0,2/-0,1 mm)	71x29 mm (+0,2/-0,1 mm)

Installation	In front of board by means of rear fastening clips or two front screws

Casing	Plastic PC+ABS UL94 V-0 body, PC transparent front, key panel PC or PC+ABS

Insulation type	Class II	Class II	Class II	Class II

Front protection rating	IP 65 with front board installation

Power supply	230VAC +10/-15% 50/60 Hz	230VAC +10/-15% 50/60 Hz	230VAC +10/-15% 50/60 Hz	12VAC +10/-15% 50/60 Hz 12VDC +10/-15% class 2

Absorbed power	3 VA max	3 VA max	3 VA max	3 VA max

Working temperature	-5 ÷ +55°C humidity <90% U.R. not condensing	-5 ÷ +55°C humidity <90% U.R. not condensing	-5 ÷ +55°C humidity <90% U.R. not condensing	-5 ÷ +55°C humidity <90% U.R. not condensing

Storage temperature	-20 ÷ +70°C humidity <90% U.R. not condensing	-20 ÷ +70°C humidity <90% U.R. not condensing	-20 ÷ +70°C humidity <90% U.R. not condensing	-20 ÷ +70°C humidity <90% U.R. not condensing

Unsuitable operating environments	Environments with strong vibrations or impacts; aggressive, polluted or corrosive atmospheres, exposure to direct solar radiation, explosive atmospheres or flammable gas.

Display	3-Digit with sign, decimal point and LED status indicators

Resolution	0,1 °C	0,1 °C	0,1 °C	0,1 °C

Probe precision (electronic)	±0,5 °C	±0,5 °C	±0,5 °C	±0,5 °C

Reading range	-45 ÷ 99 °C	-45 ÷ 99 °C	-45 ÷ 99 °C	-45 ÷ 99 °C

Connection	Screw fixed clamps	Screw fixed clamps	Screw removable clamps	Screw fixed clamps

Software class	A / parameters saved on non-volatile memory (EEPROM)

INPUTS
Analogue	2 inputs for NTC probes (10KΩ 1% at 25°C) or PTC probes (KTY83-121)

Digital	1 input (free voltage contact)

OUTPUT
Compressor relay (DO1)	(DO1) N.O. 16(6)A / 250VAC (HP2 ON REQUEST)

Heatings elements relay (DO2)	(DO2) N.O. 8(3)A N.C. 6(3)A / 250VAC

Fan relay (DO3)	(DO3) N.O. 8(3)A / 250VAC

Buzzer	PRESENT

Supervision system	TELENET / MODBUS-RTU

OPTIONS

Clock (RTC)	Present	NO	NO	NO

DIMENSION


CONNECTION SCHEME

	(_*) = Configurable function	(_*) = Configurable function	(_*) = Configurable function	(_*) = Configurable function

DOWNLOAD INSTRUCTION
		Instruction manual