Allen-Bradley|1746-NT8|Thermocouple/Millivolt Input Module
Description
The 1746-NT8 is an 8-channel thermocouple/millivolt input module for SLC 500 controllers. It supports various thermocouple types (J, K, T, E, R, S, B, N, C, D) and millivolt inputs (±50 mV and ±100 mV), converting analog signals into digital data for processing.
Features
- Channels: 8
- Input Types: Thermocouples J, K, T, E, R, S, B, N, C, D; millivolt ranges ±50 mV and ±100 mV
- Isolation: 500VDC transient between inputs and chassis/backplane, 12.5VDC continuous between channels
- Status Indicators: Channel status LEDs and module status LED
- Mounting: Chassis slot with self-locking tabs
Technical Specifications
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Power Requirements: +5V DC (0.120 A), +24V DC (0.070 A)
- Sample Time per Channel: 0.75 msec
- Module Update Time: 0.75 msec (1 channel) to 6.00 msec (8 channels)
- Input Impedance: 1 MΩ
- Filter Frequencies: 1 Hz to 75 Hz
- Turn-On/Off Time: 101-107 msec / 1-7 msec
- Cold Junction Compensation (CJC): Integrated in terminal block
- Electrical Isolation: 12.5V DC channel-to-channel, 500V DC for 1 minute channel-to-chassis/backplane
- Standards Compliance: CE, GOST, KC, MARINE
Allen-Bradley|1746-NT8|Thermocouple/Millivolt Input Module


Allen-Bradley|1746-NT8|Thermocouple/Millivolt Input Module
Description
The 1746-NT8 is an 8-channel thermocouple/millivolt input module for SLC 500 controllers. It supports various thermocouple types (J, K, T, E, R, S, B, N, C, D) and millivolt inputs (±50 mV and ±100 mV), converting analog signals into digital data for processing.
Features
- Channels: 8
- Input Types: Thermocouples J, K, T, E, R, S, B, N, C, D; millivolt ranges ±50 mV and ±100 mV
- Isolation: 500VDC transient between inputs and chassis/backplane, 12.5VDC continuous between channels
- Status Indicators: Channel status LEDs and module status LED
- Mounting: Chassis slot with self-locking tabs
Technical Specifications
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Power Requirements: +5V DC (0.120 A), +24V DC (0.070 A)
- Sample Time per Channel: 0.75 msec
- Module Update Time: 0.75 msec (1 channel) to 6.00 msec (8 channels)
- Input Impedance: 1 MΩ
- Filter Frequencies: 1 Hz to 75 Hz
- Turn-On/Off Time: 101-107 msec / 1-7 msec
- Cold Junction Compensation (CJC): Integrated in terminal block
- Electrical Isolation: 12.5V DC channel-to-channel, 500V DC for 1 minute channel-to-chassis/backplane
- Standards Compliance: CE, GOST, KC, MARINE