1746-NT8 1746NT8 AB AB SLC 8 Point Digital Input Module

1746-NT8 1746NT8 AB AB SLC 8 Point Digital Input Module

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Product Details

The 1746-NT8 is an SLC 500 Thermocouple/mV Analog Input Module by AB. It is an Eight (8) channel chassis installed module which receives thermocouple/mV signal which is digitally converted for retrieval by any SLC 500 processors. It has a backplane rating of 120mA at 5V DC and one of 70mA at 24V DC with an overall backplane power of 2.28W. The 1746-NT8 uses a Delta-Sigma signal conversion method and it has a digital low pass filter with selectable programmable filter frequencies. Its normal mode rejection frequency between the terminals is greater than 100dB at 50-60 Hz and its common mode rejection frequency between inputs and ground is also above 100dB at 50-60 Hz. The 1746-NT8 module automatically calibrates itself from power approximately every 2 minutes after power up. It offers input overvoltage protection at +/-30V DC and 600W pulsed for 1ms and provides 12.5V DC circuit isolation tested at 500V DC for 1 minute between inputs and the chassis ground and between the inputs and backplane.

The 1746-NT8 has 9 green LED lights that indicate a channel status and the module’s status. It uses the 1746-RT34 (RTB) removable terminal block for connection input devices. Included with the terminal block are Two (2) cold-junction compensation (CJC) sensors with an accuracy of +/-1.72 deg. Celsius. The 1746-NT8 has various selectable input types and the with an overall input impedance is greater than 10 M Ohms. Any input devices connected to it must have an impedance of fewer than 100 Ohms to meet the accuracy level. The 1746-NT8 offers a selectable open-circuit detection with 1 cycle per channel and an overall input stem response time of 400ms. The module has a functional temperature range between 0 deg. Celsius and 60 deg. Celsius at 5-95% humidity without condensation and is UL and CUL-approved.

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Moore Automation is a company specializing in the sales of modules and spare parts for world-renowned brands (DCs systems, robot systems, large servo control systems). The company's products include: distributed control systems (DCS), programmable controllers (PLC), MOTOROLA -MVME industrial modules, industrial control communication converters (Anybus), remote output/input modules (RTU), industrial computers (PC), industrial low-frequency screens (IPC), human-machine interface SCSI (50, 68, 80Pin ) AnyBus(Gateway)o The spare parts we sell provide one-year quality guarantee and have undergone strict testing and certification. Now we have become a global sales enterprise of industrial automation spare parts and components.