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1771-NT2 Wiring

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  • 1771-NT2
  • 1771-NT2 Wiring
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The 1771-NT2 is a high-resolution thermocouple input module by Allen-Bradley. The module has 8 mV/TC inputs and it occupies a single slot in the 1771 Input/Output chassis. The module is used to interface the PLC-3 or PLC-5 family of controllers which have block transfer capabilities since the 1771-NT2 uses block transfer to read or write data. The 1771-NT2 module has an input range (selectable) ranging between -5.5 and 56.0 millivolts. The selection depends on the type used (B, C, E, J, K, N, R, S, T). The 1771-NT2 module has an input resolution (max) ranging between 0.9 microvolts per bit at 16 bits unipolar which is selectable between E, J, K, T, N at 0.03 degrees Celsius and between types B, R, S at 0.1 degrees Celsius.

The 1771-NT2 has a normal display resolution of 0.1 millivolts per 1 degree Celsius. Additionally, the 1771-NT2 high resolution thermocouple input module comes with an input resistance greater than 10MΩ and it has a thermocouple linearization based on the IPTS-68 and NBS MN-125 standards. The module takes a maximum of 5 seconds to detect an open circuit, it has a maximum offset and gain drift rating of +/-0.50 microvolts per degree Celsius and of +/-35ppm per degree Celsius, respectively.

The 1771-NT2 module has an under/overrange threshold of -5.5 and +/-56 millivolts respectively. Also, the 1771-NT2 has a minimum rate alarm value at 0.04% FSR of 24uV/0.9 degrees Celsius per second with a maximum RAV of 30mV/1050 degrees Celsius per second at a 50% full-scale range. The module puts a 1-Amp current load on its backplane and it dissipates 5 watts at 5 Volts. It also has a common mode rejection of 150dB at 60 Hertz, and a 9 Hertz input bandwidth. The module has a module update time of 25 milliseconds for each module.

Other Automation PLC-5

SKU 2176313  UPC 0799705797451

AB High Res. Iso. Anlg. Mod. 1771N 1771NT

Troubleshooting and Product Information for 1771-NT2

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PLC-5 1771-NT2
Weight: 2 Lbs
Dimensions: 10"x12"x2"In
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