ET1122
  • Rail mounting

  • Selectable dual-set value

  • Selectable PT100, J, K, L, T, S, R sensor types

  • Selectable 0-20mA, 4-20mA, 0-10V, 2-10V, 0-25mV and 0-50mV input

  • Programmable D1 and D2 digital contact input

  • PID control function with accurate self-tuning

  • Selftune for automatic PID calculation or manually enter PID parameters if known

  • Control outputs can be cancelled. (To use for measurement purposes)

  • Control outputs can be cancelled. (To use for measurement purposes)

  • Soft-Start function

  • Communication via RS-485 ModBus protocol

  • Programmable and firmware update via ModBus

  • Selectable analog, SSR or relay control output

  • C/A2 Relay output can be programmed as secondary alarm or control output

  • A1 relay output can be programmed as PID cooling or Primary alarm output

  • Selectable heating/cooling control

  • Offset feature for input

  • In the case of sensor failure, periodical running or relay state selection

  • Up to 7 slave devices can be connected simultaneously

  • Profile control up to 16 steps

  • On-demand relay output at profile steps

  • Timer and thermostat feature can be used in profile control mode

  • CE marked according to European Norms

Manuals

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 IP20
HeightMax. 2000m
Electrical Characteristics
Supply24V DC 20%
Power ConsumptionMax. 5VA
External ConnectionsPlug-in terminals
ScalePt-100 resistance thermometer -199.9...600.0 °C / -200...600 °C
J (Fe-CuNi) thermocouple -30.0....600.0 °C / -30....600 °C
K (NiCr-Ni) thermocouple -30.0...999.9 °C / -30...1300 °C
L (Fe-CuNi) thermocouple -30.0....600.0 °C / -30....600 °C
T (Cu-CuNi) thermocouple -30.0...400.0 °C / -30....400 °C
S (Pt10Rh-Pt) thermocouple -40...1700 °C
R (Pt13Rh-Pt) thermocouple -40...1700 °C
0-20mA, 4-20mA, 0-10V, 2-10V, 0-25mV, 0-50mV max. scale range 10000 (-10000...10000)
AccuracyResistance thermometer 0-20mA, 4-20mA, 0-10V, 2-10V, 0-25mV, 0-50mV: ±0.2% (of full scale) ± 1 digit
Thermocouples: ±0.5% (of full scale) ± 1 digit
Line ResistanceMax. 100ohm for thermocouple, max. 20ohm for 3-wired Pt-100
Outputs
C/A2 OutputRelay: 250V AC, 2A (for resistive load), NO or Alarm2 selectable as control or Alarm2 output
A1 OutputRelay: 250V AC, 2A (for resistive load), NO/NC selectable (Alarm1 output)
ANL/SSR Output0-20mA, 4-20mA, 0-10V, 2-10V analog SSR
Max. load resistance 600ohms for mA output and SSR mode. Source resistance 500ohms for V output
Life ExpectancyMechanical 10.000.000 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 Converter14 bit
Sampling Time100ms
Proportional BandAdjustable between 0.0% and 100.0%. If Pb=0%, On-Off control is selected
Control PeriodAdjustable between 1 and 125s
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 MethodRail mounting
DimensionsG29xY90xD64 mm
WeightApprox. 200g (after packaging)
Enclosure MaterialSelf extinguishing plastics