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Bachmann PATI216 Temperature Input Module
1. Product Description
A high-precision industrial temperature input module designed for accurate acquisition and monitoring of temperature signals in automation systems. The Bachmann PATI216 integrates 16 independent input channels, supporting a wide range of temperature sensors (e.g., thermocouples, RTDs). It enables real-time temperature data collection, linearization, and fault detection, with seamless integration with Bachmann controllers (e.g., MPC240), backplanes (e.g., BS203/BS208), and HMI panels (e.g., OT115/R). Its rugged design and anti-interference performance make it ideal for harsh industrial environments requiring reliable temperature monitoring (e.g., process control, equipment thermal management).
2. Detailed Specifications
2.1 Channel & Sensor Compatibility
- Total Channels: 16 independent temperature input channels (configurable per channel)
- Thermocouples: Type J, K, T, E, R, S, B (software-selectable)
- RTDs: Pt100, Pt1000 (2-wire/3-wire/4-wire connection; Class A/B)
- Analog signals: 0-10 V DC, 4-20 mA DC (for temperature transmitters)
- Temperature Measurement Range:
- Thermocouples: -200°C ~ +1800°C (depends on type; e.g., Type K: -200°C~+1372°C)
- RTDs: -200°C ~ +850°C (Pt100); -50°C ~ +600°C (Pt1000)
- Thermocouples: ±0.1°C (at 0°C~+100°C); ±0.2% of reading (over full range)
- RTDs: ±0.05°C (at 0°C); ±0.1% of reading (over full range)
2.2 Electrical Performance
- Input Impedance: ≥100 MΩ (for thermocouples); ≤0.1 Ω (for RTDs, 4-wire)
- Cold-Junction Compensation (CJC): Built-in, ±0.1°C accuracy (for thermocouples)
- Isolation: 3 kV AC isolation between channels; 5 kV AC isolation between I/O and power lines
- Noise Suppression: Integrated low-pass filter (configurable cutoff frequency: 0.1-10 Hz)
- Fault Detection: Open-circuit sensor, short-circuit, and over-range detection (per channel)
2.3 Communication & Integration
- Interface Type: 1×backplane connector (compatible with Bachmann BS203/BS208/BS209 backplanes)
- Data Transmission: Real-time temperature data upload to host controllers; maximum throughput 50 Mbps
- Protocol Support: Bachmann proprietary temperature acquisition protocol; compatible with Modbus RTU (via backplane)
2.4 Power Supply
- Input Voltage: 24 V DC ±20% (powered via backplane or external 24 V DC)
- Power Consumption: Typical 4 W, Maximum 6 W (excluding sensor excitation power)
- Power Protection: Overvoltage, undervoltage, and reverse polarity protection
2.5 Operating Environment
- Operating Temperature: -40°C ~ +70°C
- Storage Temperature: -40°C ~ +85°C
- Relative Humidity: 5% ~ 95% (non-condensing)
- Vibration Resistance: 10-500 Hz, 2 g acceleration (IEC 60068-2-6)
- Shock Resistance: 30 g acceleration, 11 ms duration (IEC 60068-2-27)
- EMC Compliance: EN 61000-6-2 (industrial immunity), EN 61000-6-4 (industrial emissions)
2.6 Physical & Software
- Dimensions: 140×75×28 mm (Length×Width×Height)
- Mounting: DIN rail (via backplane integration; EN 50022 standard)
- Programming Software: Bachmann Studio (v4.0+; channel configuration, sensor type selection, linearization, fault alert setting)
- LED Indicators: 16 channel-status LEDs (green: normal acquisition; red: sensor fault); 1 power LED (green); 1 communication LED (yellow: active)
3. Advantages & Features
- High-Precision Measurement: ±0.05°C (RTD) and ±0.1°C (thermocouple) accuracy ensures reliable temperature data for critical processes.
- Multi-Sensor Compatibility: Supports thermocouples, RTDs, and transmitters—adapts to diverse industrial temperature monitoring needs.
- Advanced Fault Detection: Real-time sensor open/short-circuit detection reduces unplanned downtime from faulty sensors.
- Seamless Integration: Works with Bachmann controllers, backplanes, and HMI panels—no extra adapters for system build.
- Anti-Interference Design: High isolation and noise suppression ensure stable performance in EMI-rich environments (e.g., factories with motors/inverters).
4. Application Fields
- Process Control: Chemical/petroleum plants (reactor temperature monitoring); pharmaceutical production (sterilization temperature control).
- Manufacturing: Metal processing (heat treatment furnace temperature tracking); plastic injection molding (mold temperature monitoring).
- Food & Beverage: Food processing (cooking/chilling temperature control); dairy production (pasteurization temperature monitoring).
- Equipment Thermal Management: CNC machines (spindle temperature monitoring); power inverters (heat sink temperature tracking).
- Environmental Monitoring: Cold storage facilities (temperature maintenance); greenhouse climate control.
5. Precautions
- Installation: Integrate only with compatible Bachmann backplanes; power off backplane before inserting/removing the module to avoid connector damage.
- Sensor Wiring: Use shielded cables for thermocouples/RTDs (ground shields at one end); use 4-wire connection for RTDs (minimizes lead resistance error); separate sensor cables from high-voltage power lines.
- Sensor Compatibility: Verify sensor type (e.g., Type K thermocouple) matches channel configuration; use thermocouple extension wires of the same type (avoids measurement error).
- Calibration: Perform annual calibration (in a temperature-stable environment: 20°C~25°C); use certified calibration sources for thermocouples/RTDs.
- Maintenance: Inspect sensor connections quarterly (tighten loose terminals); clean module with a dry cloth; do not disassemble (voids warranty and risks isolation failure).
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