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Description
The Alfa 21-DP is a digital thermostat for wall mounting or panel mounting.
The range from the Alfa 21-DP is -10/+90 °C with a read-out per tenth of a degree. The Alfa 21 has a range from -50/+150 °C with a read-out per degree.
All settings, i.e. the choice between the function of cooling or heating, are made by the internal parameters.
The Alfanet 21-DP has a network connection for read-out and data logging on the Alfanet PC software. The Alfa 21-DP does not have this network connection.
The Alfa 21-DP is supplied directly with 230Vac. Other supply voltages are possible on request.
The range from the Alfa 21-DP is -10/+90 °C with a read-out per tenth of a degree. The Alfa 21 has a range from -50/+150 °C with a read-out per degree.
All settings, i.e. the choice between the function of cooling or heating, are made by the internal parameters.
The Alfanet 21-DP has a network connection for read-out and data logging on the Alfanet PC software. The Alfa 21-DP does not have this network connection.
The Alfa 21-DP is supplied directly with 230Vac. Other supply voltages are possible on request.
Alfanet 21 DP -10/+90°C
Price on Request
Serienummer: 904.010257
Technical specifications
Type:
Alfanet 21
Housing:
Black ABS plastic
Dimensions:
144 x 72 x 50 mm (hwd)
Front:
Polyester
Front connection:
Screw terminals
Power input:
230 Vac, 50/60 Hz, (-10/+5%)
Measure range:
-10/+90°C
Controls:
By push buttons on the front
Sensor:
SM 811 (PTC sensor, 1000 Ohm at 25°C) (not included)
Relay:
SPDT Contact 250V/16A (C-NO), 8A (C-NC) (not inductive)
Accuracy:
± 0.5% of the range
Network:
RS-485 Network Alfanet
Series:
Alfanet 21
Functions:
Cooling, heating
Number of sensors:
1
Voltage:
230 V
Housing:
Building
Description
The Alfa 21-DP is a digital thermostat for wall mounting or panel mounting.
The range from the Alfa 21-DP is -10/+90 °C with a read-out per tenth of a degree. The Alfa 21 has a range from -50/+150 °C with a read-out per degree.
All settings, i.e. the choice between the function of cooling or heating, are made by the internal parameters.
The Alfanet 21-DP has a network connection for read-out and data logging on the Alfanet PC software. The Alfa 21-DP does not have this network connection.
The Alfa 21-DP is supplied directly with 230Vac. Other supply voltages are possible on request.
The range from the Alfa 21-DP is -10/+90 °C with a read-out per tenth of a degree. The Alfa 21 has a range from -50/+150 °C with a read-out per degree.
All settings, i.e. the choice between the function of cooling or heating, are made by the internal parameters.
The Alfanet 21-DP has a network connection for read-out and data logging on the Alfanet PC software. The Alfa 21-DP does not have this network connection.
The Alfa 21-DP is supplied directly with 230Vac. Other supply voltages are possible on request.