The Foxboro FBM203 is a high-performance, 8-channel RTD input module engineered for the I/A Series distributed control system. It provides precise temperature monitoring by supporting a range of sensor configurations, including 2-wire, 3-wire, and 4-wire RTD inputs, as well as direct resistance measurements. This module is essential for applications requiring high signal integrity, such as power generation, pharmaceutical processing, and food production, where stable thermal data is critical for process control.
| Model | FBM203 |
| Channels | 8 Isolated RTD/Resistance |
| Resistance Ranges | 0 to 320 Ohms or 0 to 3200 Ohms |
| Accuracy | +/- 0.02% of span |
| Power Consumption | 3 W maximum |
| Operating Temperature | -20 to +70 deg C |
| Environmental Rating | G3 (Harsh) |
Q: Can the FBM203 be replaced while the system is running?
A: Yes, the FBM203 is designed for hot-swapping, allowing for replacement without powering down the baseplate or interrupting other modules.
Q: Does this module support 4-wire RTD sensors?
A: Yes, the FBM203 is fully compatible with 2-wire, 3-wire, and 4-wire RTD configurations, with automatic lead-wire resistance compensation.
Q: What is the primary function of the channel-to-channel isolation?
A: The isolation prevents electrical interference and ground loops between channels, which is essential for maintaining high-accuracy temperature measurements in noisy industrial environments.
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