

The MC-20 digital signal conditioner converts the voltage output of solar radiation sensors, PT-100 and 10kΩ NTC temperature sensors into a MODBUS 485 RTU output. The converter can be used with all passive EKO radiometers or any other mV sensor that needs to be connected to a data logger or inverter with a MODBUS 485 RTU input channel. With MODBUS, up to 100 different sensors and converter units can be addressed and connected in parallel.
With the MC-20, the sensor cable can easily be extended over long distances without any signal loss or potential electromagnetic interference in noisy industrial environments. Robust input/output screw terminals can also be easily connected to the signal cable leading to any on-site measurement systems. Users can also quickly check and change their converter settings with the optional USB controller and EKO Sense software.
| Output | Digital (Modbs RTU) |
|---|---|
| Input range 1 | 0 to 100 mV |
| Input range 2 | 2W, 3W, 4W PT-100 (* Combined input terminals 1 and 2) |
| Output range | – |
| Resolution (µV) | < 5 |
| Resolution | < 0.1 ºC |
| Impedance | > 15 MΩ |
| Temperature response | < 0.2 % (-20°C to 50°C) |
| Response time 95% | < 1 Sec |
| Non-linearity full span | < 0.1 % |
| Operating temperature range | -40 to 80 °C |
| Power supply | 12 to 24 +/-10% VDC |
| Power Consumption | 0.2 to 0.3 W |
| Dimensions | 45 mm (D) x 27 mm (H) |
| Weight | 0.03 kg |
| Ingress protection | IP20 |
| USB programming kit | USB-M |