Beckett RWF40 Instructions - Manual (Page 7)

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Building Technologies CC1N7865en
HVAC Products 01.09.2005
Function of the controller when used for burner control (cont´d)
To acquire the actual value, a number of sensors can be connected to the RWF40...
Measurement range
Pt100 / IEC 751 -200...+850 °C (-328...+1562 °F)
Pt1000 / IEC 751 -200...+850 °C (-328...+1562 °F)
Ni100 / DIN 43760 -60...+230 °C (-76...+482 °F)
Ni1000 / DIN 43760 -60...+230 °C (-76...+482 °F)
2-or 3-wire resistance
sensors
LG-Ni1000 -50...+160 °C (-58...+320 °F)
Thermocouples NiCr-Ni / type «K» -200...+1372 °C (-328...+2502 °F)
Cu-Cu-Ni / type «T» -200...+400 °C (-328...+752 °F)
NiCroSil-NiSil / type «N» -100...+1300 °C (-148...+2372 °F)
FeCuNi / type «J» -200...+1000 °C (-328...+1832 °F)
Pt-RhPt / type «S» 0...1768 °C (-32...3214 °F) ¹)
Pt-RhPt / type «R» 0...1768 °C (-32...3214 °F) ¹)
Pt-RhPt / type «B» 0...1820 °C (32...3308 °F) ¹)
0...20 mA scalable -1999...+9999
4...20 mA scalable -1999...+9999
DC 0...10 V scalable -1999...+9999
Linearized standard
signals
DC 0...1 V scalable -1999...+9999
¹) Only RWF40.0X2B97
The power provided for the measuring transducers is DC 24 V / 30 mA.
Feeding a signal to analog input 2, the controller´s setpoint can be influenced. The
influence can be scaled.
The following signals can be used:
- Input signals DC 0...1 V, DC 0...10 V, 0...20 mA, 4...20 mA
- 1 k
Ω potentiometer in a 2-wire circuit
Analog input 1 (actual
value sensor)
Analog input 2 (external
setpoint shift or external
setpoint)