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29x90 mm Sized, Modbus Communicating, 4 Selectable Thermocouple or PT 100 Inputs, 4 SSR Outputs PID Control Device.
ET1124A
Mountable box for rail installation
Modbus address and baud rate can be set via dip switch, and the device can be reset to factory settings if desired.
Selectable dual set value input capability
Selectable thermocouple (J, K, L, T, S, R) or two-wire PT100 sensor type at the time of order
Automatic calculation of PID parameters (SELF TUNE)
Ability to disable control outputs (for measurement purposes)
Four SSR temperature control outputs
Ability to manually control SSR outputs
Soft-Start feature
Communication via RS-485 ModBus protocol
Selectable Heating/Cooling control
Offset feature for inputs
Ability to select relay positions in case of probe failure or periodic operation
Programming via ModBus
Software update feature via RS-485
CE marked according to EN standards
Ambient/Storage Temperature | 0...50 °C / -25...70 °C |
Relative Humidity | Up to 80% at 31 °C, then linearly decreasing to 50% at 40 °C |
Protection Class | IP20 according to EN 60529 standard |
Altitude | Up to 2000m |
Power Supply | 24V DC ±20% |
Power Consumption | Maximum 5VA |
Connection | Socket terminal block |
Scale | Pt-100 resistance thermometer -199.9...600.0 °C / -200...600 °C Fe-Const (J) thermocouple -30.0...600.0 °C / -30...600 °C NiCr-Ni (K) thermocouple -30.0...999.9 °C / -30...1300 °C Fe-CuNi (L) thermocouple -30.0...600.0 °C / -30...600 °C Cu-CuNi (T) thermocouple -30.0...400.0 °C / -30...400 °C Pt10Rh-Pt (S) thermocouple -40...1700 °C Pt13Rh-Pt (R) thermocouple -40...1700 °C |
Accuracy | Pt-100 (resistance thermometer): ±0.2% (of full scale) ±1 digit Thermocouples: ±0.5% (of full scale) ±1 digit |
Wire Resistance | Maximum 100ohm for thermocouples. Maximum 1ohm for Pt-100 |
S1...S4 SSR Control Output | Four channels, 24VDC ±20% maximum 30mA short-circuit protected SSR control output |
Control Type | Different set-point control for four zones |
Control Method | On-Off, P, PI, PD, PID |
A/D Converter | 14 bits |
Sampling Time | 200ms |
Proportional Band | Adjustable between 0.0% and 100.0%. Pb=0.0 means On-Off control is selected |
Control Period | Adjustable between 1 and 125 seconds |
Hysteresis | Adjustable between 1 and 50 °C/F |
Output Power | Adjustable between 0% and 100% of the set value |
Mounting Type | Mountable on rail |
Dimensions | G29xY90xD64 mm |
Weight | Approximately 200g (with packaging) |
Enclosure Material | Self-extinguishing plastics used |