ET1224A
Rail mountable box
Selectable dual set value input
Selectable TC ( J, K, L, T, S, R ) or two-wire PT100 sensor type (Must be specified in the order)
Control outputs can be disabled (For measurement purposes)
Four SSR temperature control outputs
SSR Outputs can be manually controlled
Soft-Start feature
Communication with RS485 Modbus protocol
Selectable Heating/Cooling control
Offset feature for input
In case of probe failure, SSR positions can be selected or run periodically
Automatic calculation of PID parameters (SELF TUNE)
Programming with Modbus
Possibility of heating error monitoring control
Reading and writing all parameters with NFC
CE marked according to EN standards
Manuals
| Environmental Conditions | |
| Ambient/Storage Temperature | 0...50 ºC / -25...70 ºC |
| Relative Humidity | 80% relative humidity for temperatures up to 31°C, decreasing linearly to 50% at 40°C |
| Protection Degree | According to EN 60529 IP20 |
| Height | Max. 2000m |
| Electrical Characteristics | |
| Supply | 24V DC 20% |
| Power Consumption | Max. 5VA |
| External Connections | Plug-in terminals |
| Scale | Pt-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 |
| Accuracy | Pt-100 (resistance thermometer): ±0.2% (of full scale) ±1 digit Thermocouples: ±0.5% (of full scale) ±1 digit |
| Line Resistance | Max. 100ohm for thermocouple. Max. 1ohm for 2-wired Pt-100 |
| Outputs | |
| S1....S4 SSR Control Outputs | Four outputs, Max. 24 VDC ±20% , 30mA short circuit protected SSR control |
| Control | |
| Control Type | Set-point control for 4 zone |
| Control Algorithm | On-Off, P, PI, PD, PID (selectable) |
| A/D Converter | 14 bit |
| Sampling Time | 200ms |
| Proportional Band | Adjustable between 0.0% and 100.0%. If Pb=0%, On-Off control is selected |
| Control Period | Adjustable between 1 and 125s |
| Hysteresis | Adjustable between 1 and 50 °C/F |
| Output Power | The ratio of power at a set point can be adjusted between 0% and 100% |
| Housing | |
| Mounting Method | Rail mounting |
| Dimensions | G22.5xY96xD86mm |
| Weight | Approx. 158g (after packaging) |
| Enclosure Material | Self extinguishing plastics |