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Description
The Alfa 57 is a compact three stage pressostat for DIN rail mounting with a neutral zone.
The Alfa 57 has a default program with the function pressure increase/ decrease and a minimum/ maximum alarm. The thermostat can also be programmed with the function: three stage pressure increase or three stage pressure decrease.
The Alfa 57 has a range of -1/+99 Bar with a read-out per 0,1 Bar.
To the Alfa 57, pressure sensors from the PX range can be connected. These sensors are not included.
The Alfa 57 offers the option to show the temperature belonging to the pressure. Therefore a large number of refrigerants can be selected.
The Alfanet 57 has a network connection for read-out and data logging on the Alfanet PC software. The Alfa 57 does not have this network connection.
The Alfa 57 is supplied directly with 230Vac. Other supply voltages are possible on request.
The Alfa 57 has a default program with the function pressure increase/ decrease and a minimum/ maximum alarm. The thermostat can also be programmed with the function: three stage pressure increase or three stage pressure decrease.
The Alfa 57 has a range of -1/+99 Bar with a read-out per 0,1 Bar.
To the Alfa 57, pressure sensors from the PX range can be connected. These sensors are not included.
The Alfa 57 offers the option to show the temperature belonging to the pressure. Therefore a large number of refrigerants can be selected.
The Alfanet 57 has a network connection for read-out and data logging on the Alfanet PC software. The Alfa 57 does not have this network connection.
The Alfa 57 is supplied directly with 230Vac. Other supply voltages are possible on request.
Alfanet 57 BAR 4/20mA input
Price on Request
Serienummer: 904.000853
Technical specifications
Type:
Alfanet 57
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:
-1/+99 Bar, reading per 0,1 Bar
Controls:
By push buttons on the front
Sensor:
Engels Power supply 12Vdc for sensors from the PX series
Relay:
Increase pressure SPST contact 250V/5A (NO) decrease pressure SPST contact 250V/5A(NO)alarm SPDT contact 250V/5A (NO/NC)(shared common, not inductive)
Accuracy:
± 0.5% of the range
Network:
RS-485 Network Alfanet
Functions:
Increase pressure/decrease pressure or increase pressure 3x or decrease pressure 3x (internally programmable) minimum/maximum alarm
Description
The Alfa 57 is a compact three stage pressostat for DIN rail mounting with a neutral zone.
The Alfa 57 has a default program with the function pressure increase/ decrease and a minimum/ maximum alarm. The thermostat can also be programmed with the function: three stage pressure increase or three stage pressure decrease.
The Alfa 57 has a range of -1/+99 Bar with a read-out per 0,1 Bar.
To the Alfa 57, pressure sensors from the PX range can be connected. These sensors are not included.
The Alfa 57 offers the option to show the temperature belonging to the pressure. Therefore a large number of refrigerants can be selected.
The Alfanet 57 has a network connection for read-out and data logging on the Alfanet PC software. The Alfa 57 does not have this network connection.
The Alfa 57 is supplied directly with 230Vac. Other supply voltages are possible on request.
The Alfa 57 has a default program with the function pressure increase/ decrease and a minimum/ maximum alarm. The thermostat can also be programmed with the function: three stage pressure increase or three stage pressure decrease.
The Alfa 57 has a range of -1/+99 Bar with a read-out per 0,1 Bar.
To the Alfa 57, pressure sensors from the PX range can be connected. These sensors are not included.
The Alfa 57 offers the option to show the temperature belonging to the pressure. Therefore a large number of refrigerants can be selected.
The Alfanet 57 has a network connection for read-out and data logging on the Alfanet PC software. The Alfa 57 does not have this network connection.
The Alfa 57 is supplied directly with 230Vac. Other supply voltages are possible on request.