In the Ex i version, the MODEX 8 x 4 to 20 mA module with 8 analogue inputs enables the supply and data logging of 8 analogue intrinsically safe two-wire transmitters. The input signal has 12-bit resolution and is transmitted with high interference resistance. The module is connected to the process control system via the PROFIBUS-DP. Coding rotary switches are available for addressing the module. Diagnostics data indicating the status of the outputs with respect to a disconnection or short-circuit can also be transmitted in addition to the user data. This is also displayed on the module itself using LEDs.
| Protection class | Module: IP 66 EN/IEC 60529 Terminals: IP 20 EN/IEC 60529 Terminals with cover: IP 30 EN/IEC 60529 |
|---|---|
| Structure | Flameproof, clip-on enclosure for TH 35 rail |
| Dimensions | see data sheet |
| Material | High-quality thermoplastic |
| Storage temperature | -40 °C to +60 °C |
| Weight | 2.1 kg |
| Display | LEDs on front panel Bus status: ON, BF, SF Inputs: 8 x double LED LED yellow, sensor active; LED red, open circuit/short circuit |
| Voltage | Supply voltage: DC 24 V (20 to 30 V) |
| Output power | 7.6 W |
| Power dissipation | 5.1 W (Module) |
