EPC4420
  • Selectable sensor type

  • PID control function with accurate self-tuning

  • Communication via RS-485 ModBus protocol (order option)

  • Selectable SSR or relay control output

  • Selectable 0-20mA or 4-20mA analog control output

  • AL2 relay output can be programmable as second alarm or control output

  • AL1 relay output can be programmable as control or timer or AL1 output

  • Selectable heat/cool control

  • Input offset feature

  • In the case of sensor failure relay state can be selected

  • Profile control up to 8 steps

  • Programmable AL1 and AL2 outputs for each step

  • Resume operation after power interruption

  • Security levels for keypads

  • Programming by using keypad or Modbus

  • CE marked according to European Norms

Environmental Conditions
Ambient/Storage Temperature0...50 ºC / -25...70 ºC
Relative Humidity80% relative humidity for temperatures up to 31 °C, decreasing linearly to 50% at 40 °C
Protection DegreeAccording to EN 60529 Front panel: IP65, Rear panel: IP20
HeightMax. 2000m
Electrical Characteristics
Supply230V AC +10% -20% or 24V AC ±10%, 50/60Hz or 9-30V DC / 7-24V AC ±10% SMPS
Power Consumption5VA
External ConnectionsPlug-in terminals
ScalePt-100 resistance thermometer -200...600 °C / -99.9...300.0 °C
Fe-Const (J) thermocouple 0...600 °C
NiCr-Ni (K) thermocouple 0...1200 °C
Cu-CuNi (T) thermocouple 0...400 °C
Pt10Rh-Pt (S) thermocouple 0...1600 °C
Pt13Rh-Pt (R) thermocouple 0...1600 °C
Accuracy±0.2% (of full scale) ±1 digit
Line ResistanceMax. 100ohm for thermocouple, max. 20ohm for 3-wired Pt-100
Output
C/A2 OutputRelay: 250V AC, 2A (for resistive load), NO+NC (selectable as control or AL2 output)
A1 OutputRelay: 250V AC, 2A ( for resistive load), NO/NC selectable
SSR Output12V, 20mA
Life ExpectancyMechanical 30.000.000 operations (under no load), Electrical 300.000 operations (2A at 250V AC, resistive load)
Control
Control TypeSingle set-point and alarm control
Control AlgorithmOn-Off, P, PI, PD, PID (selectable)
A/D Converter15 bit
Sampling Time100ms
Proportional BandAdjustable between 0% and 100%. If Pb=0%, On-Off control is selected
Control PeriodAdjustable between 1 and 250s
HysteresisAdjustable between 1 and 50°C/F
Output PowerThe ratio of power at a set point can be adjusted between 0% and 100%
Housing
Mounting MethodPanel mounting
DimensionsW48xH48xD87 mm
WeightApprox. 250g (after packaging)
Enclosure MaterialSelf extinguishing plastics