ET1124
  • Rail mounting

  • Selectable dual-set value

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

  • 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)

  • Four SSR temperature control outputs

  • SSR outputs can be controlled manually

  • Soft-Start function

  • Communication via RS-485 ModBus protocol

  • Selectable heating/cooling control

  • Offset feature for input

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

  • Programmable and firmware update via ModBus

  • 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
ScaleJ (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
Accuracy±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