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Bachmann PTAI260 Temperature Input Module
1. Product Overview
The Bachmann PTAI260 is a high-precision temperature input module, specialized in collecting and processing temperature signals from industrial-grade sensors for distributed control systems. Originating from Austria, this module acts as a "temperature signal hub" between field temperature sensors and central controllers (e.g., MX220 processor, SLC284 safety processor), solving challenges of multi-type sensor compatibility and high-accuracy signal conversion in industrial temperature monitoring scenarios.
With a compact DIN rail-mounted design, the PTAI260 fits seamlessly into standard control cabinets and field enclosures. It is engineered to withstand harsh industrial environments—resisting electromagnetic interference (EMI), wide temperature fluctuations, and mechanical vibration—making it ideal for applications requiring reliable temperature monitoring, such as process industries, renewable energy farms, and manufacturing lines.
2. Core Technical Features
- Sensor Compatibility: Supports multiple industrial temperature sensor types, including PT100/PT1000 (2-wire, 3-wire, 4-wire configurations) and standard thermocouples (J, K, T, N, E, R, S, B types). This versatility eliminates the need for separate modules for different sensor types, simplifying system design.
- Channel Configuration & Accuracy: Equipped with 6 independent temperature input channels, enabling simultaneous monitoring of 6 discrete temperature points. Measurement accuracy: ±0.1℃ for PT100 (0-100℃), ±0.2℃ for thermocouples (full range), ensuring high-precision data for critical temperature control.
- Signal Processing & Filtering: Integrates 24-bit high-resolution ADC (Analog-to-Digital Converter) for signal conversion, with configurable digital filters (0.1-100 Hz cutoff frequency) to suppress EMI and noise from industrial equipment (e.g., motors, inverters). This ensures stable signal output even in electrically noisy environments.
- Isolation & Electrical Protection: 500 V DC galvanic isolation between channels and system, preventing cross-signal interference. Built-in overvoltage protection (up to 30 V DC) and reverse polarity protection for sensor wiring, safeguarding the module from wiring errors or sensor faults.
- Environmental Adaptability: Operating temperature range: -30℃ to +60℃; storage temperature: -40℃ to +85℃. Resists vibration (IEC 60068-2-6: 10-500 Hz, 10 g acceleration) and humidity (5-95% non-condensing). Complies with IEC 61000-6-2 for EMC immunity, ensuring reliable operation in extreme industrial conditions.
- Status Monitoring: LED indicators for "Power," "Channel Active," and "Fault" (per-channel and global) statuses. Fault indicators trigger for sensor open/short circuits, overrange signals, or module errors, enabling quick troubleshooting. Diagnostic data (e.g., sensor health) is transmitted to the central controller via FASTBUS for real-time monitoring.
3. Functional Advantages
- Multi-Sensor Compatibility & Flexibility: Supports both RTDs (PT100/PT1000) and thermocouples, adapting to diverse temperature measurement needs—RTDs for high-precision low-to-medium temperature (e.g., 0-500℃) monitoring, thermocouples for high-temperature (e.g., up to 1700℃ for type S) scenarios. For example, in a chemical reactor, it can monitor reactor wall temperature (thermocouple) and coolant temperature (PT100) via the same module.
- High Accuracy & Stable Signal: 24-bit ADC and low-noise filtering ensure temperature data accuracy even in harsh environments. For pharmaceutical manufacturing (e.g., vaccine cold storage), ±0.1℃ accuracy maintains compliance with strict temperature control standards, preventing product spoilage.
- Easy Integration & Configuration: Native compatibility with Bachmann’s FASTBUS ecosystem (e.g., MX220, BEM211). Configurable via Solution Center—no custom programming required. Users can set sensor type, filter frequency, and alarm thresholds (e.g., high/low temperature triggers) for each channel, reducing setup time by 30% compared to non-configurable modules.
- Reliable Fault Detection & Protection: Per-channel open/short circuit detection and overvoltage protection minimize downtime. In a solar inverter, if a PT100 sensor (monitoring inverter heatsink temperature) fails, the module immediately alerts the controller, triggering cooling system backups to prevent inverter overheating.
4. Typical Applications
- Process Industries (Chemical/Pharmaceutical): In chemical reactors, monitors reactor temperature (type K thermocouple, -200 to 1372℃) and jacket cooling water temperature (PT100, 0-100℃) via 2 channels. High accuracy ensures reaction conditions stay within optimal ranges, preventing hazardous byproducts or product quality issues.
- Renewable Energy (Wind/Solar): In wind turbines, monitors gearbox oil temperature (PT1000, -50 to 200℃) and generator stator temperature (type R thermocouple, 0-1767℃). Transmits data to the turbine controller via FASTBUS; if temperature exceeds thresholds, triggers shutdowns to protect expensive components.
- Manufacturing (Automotive/Food): In automotive paint booths, monitors oven temperature (type T thermocouple, -200 to 370℃) across 6 zones via 6 channels. Ensures uniform curing of paint, preventing defects. In food processing (e.g., bakery ovens), PT100-based monitoring maintains ±0.5℃ accuracy, complying with food safety regulations.
- Infrastructure (Water Treatment/Power): In water treatment plants, monitors boiler feedwater temperature (PT100, 0-150℃) and UV disinfection chamber temperature (type E thermocouple, -200 to 900℃). Stable temperature data ensures efficient boiler operation and effective disinfection, preventing bacterial contamination.
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