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Description
The Alfa 55-RTDF is a complete time control unit for cooler and freezer installations.
The Alfa 55-RTDF has the following functions: * room thermostat with digital read-out * start delay for evaporator fan * defrost clock to start the defrost on interval base or real-time base * end-of-defrost thermostat with time limit * off-cycle, electrical or hot-gas defrost
The Alfa 55-RTDF is a compact control unit, which can be mounted on the DIN rail in a switch panel. The Alfa 55-RTDF has a range of -50/+50°C. Temperatures above -10°C can be read-out per 0,1°C
All settings can be done by internal parameters.
The Alfanet 55-RTDF has a network connection for read-out and data logging on the Alfanet PC software. The Alfa 55-RTDF does not have this network connection.
The Alfa 55-RTDF is supplied directly with 230Vac. Other supply voltages are possible on request.
The Alfa 55-RTDF has the following functions: * room thermostat with digital read-out * start delay for evaporator fan * defrost clock to start the defrost on interval base or real-time base * end-of-defrost thermostat with time limit * off-cycle, electrical or hot-gas defrost
The Alfa 55-RTDF is a compact control unit, which can be mounted on the DIN rail in a switch panel. The Alfa 55-RTDF has a range of -50/+50°C. Temperatures above -10°C can be read-out per 0,1°C
All settings can be done by internal parameters.
The Alfanet 55-RTDF has a network connection for read-out and data logging on the Alfanet PC software. The Alfa 55-RTDF does not have this network connection.
The Alfa 55-RTDF is supplied directly with 230Vac. Other supply voltages are possible on request.
Alfanet 55 RTDF
Price on Request
Serienummer: 904.000733
Technical specifications
Type:
Alfanet 55
Housing:
Grey ABS plastic
Dimensions:
71 x 90 x 58 mm (hwd)
Front:
Polyester
Front connection:
Screw terminals on the side
Power input:
230 Vac, 50/60 Hz, (-10/+5%)
Measure range:
-50/+50°C
Controls:
By push buttons on the front
Sensor:
SM 811 (PTC sensor; 1000 Ohm at 25°C) (not included) Option for second sensor
Relay:
Cooling SPST contact 250V/5A (NO) Heating SPST contact 250V/5A (NO) alarm SPDT contact 250V/5A (NO/NC) (all relays one common, not inductive)
Accuracy:
± 0.5% of the range
Network:
RS-485 Network Alfanet
Series:
Alfanet 55
Functions:
Cooling, Natural defrost, Electric defrost, Hot gas defrost, Interval defrost, Real time defrost
Number of sensors:
2
Voltage:
230 V
Housing:
Din-rail
Description
The Alfa 55-RTDF is a complete time control unit for cooler and freezer installations.
The Alfa 55-RTDF has the following functions: * room thermostat with digital read-out * start delay for evaporator fan * defrost clock to start the defrost on interval base or real-time base * end-of-defrost thermostat with time limit * off-cycle, electrical or hot-gas defrost
The Alfa 55-RTDF is a compact control unit, which can be mounted on the DIN rail in a switch panel. The Alfa 55-RTDF has a range of -50/+50°C. Temperatures above -10°C can be read-out per 0,1°C
All settings can be done by internal parameters.
The Alfanet 55-RTDF has a network connection for read-out and data logging on the Alfanet PC software. The Alfa 55-RTDF does not have this network connection.
The Alfa 55-RTDF is supplied directly with 230Vac. Other supply voltages are possible on request.
The Alfa 55-RTDF has the following functions: * room thermostat with digital read-out * start delay for evaporator fan * defrost clock to start the defrost on interval base or real-time base * end-of-defrost thermostat with time limit * off-cycle, electrical or hot-gas defrost
The Alfa 55-RTDF is a compact control unit, which can be mounted on the DIN rail in a switch panel. The Alfa 55-RTDF has a range of -50/+50°C. Temperatures above -10°C can be read-out per 0,1°C
All settings can be done by internal parameters.
The Alfanet 55-RTDF has a network connection for read-out and data logging on the Alfanet PC software. The Alfa 55-RTDF does not have this network connection.
The Alfa 55-RTDF is supplied directly with 230Vac. Other supply voltages are possible on request.