Allen-Bradley 1794-IT8 is a FLEX I/O thermocouple input module designed for precise temperature acquisition, offering multi-channel measurement, high resolution, and reliable integration in distributed industrial control systems.
SPECIFICATION
General
- Manufacturer: Rockwell Automation (Allen-Bradley)
- Model: 1794-IT8
- Product Type: Thermocouple / mV Input Module
- Series: FLEX I/O
Input Characteristics
- Number of Inputs: 8 differential channels
- Supported Sensors: Thermocouple types J, K, T, E, R, S, B, C, N
- Input Range: ±76.5 mV
- Resolution: 16-bit (≈2.38 µV)
Performance
- Channel Bandwidth: 0–2.62 Hz (-3 dB)
- Data Format: 16-bit 2’s complement or offset binary
- Cold Junction Compensation: 0–70°C range
- Noise Immunity: High common-mode rejection (-115 dB typical)
Electrical
- FlexBus Current: 20 mA
- Power Dissipation: Max. 3 W
- Isolation Voltage: 850 V DC tested
Mechanical
- Mounting: DIN rail via terminal base (1794-TB2 / TB3 series)
- Dimensions: approx. 94 × 46 × 53 mm
Environmental
Operating Humidity: 5–95% non-condensing
Vibration: up to 5 g (10–500 Hz)
Applications
- Process industries: Monitors temperature in chemical and oil processing systems.
- Manufacturing lines: Collects multi-point thermal data for quality control.
- Power plants: Measures boiler and turbine temperatures for safe operation.
- Food & beverage: Ensures precise thermal control during production processes.
- Industrial automation: Integrates with PLC systems for real-time temperature monitoring and diagnostics.
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