Allen-Bradley 1746-NR8
Allen-Bradley 1746-NR8 SLC 8 Point Resistance Input Module
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Brand :
Allen-BradleyPart number :
1746-NR8Payment :
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In StockThe Allen-Bradley 1746-NR8 is a SLC 500 RTD/Resistance Analog Input Module. This RTD/Resistance Analog Input Module has Eight (8) channels which are compatible for RTD sensors such as Platinum (385), Platinum (3916), Copper (416), Nickel (618), Nickel (672), and Nickel Iron. It is also compatible for direct inputs of resistance devices. This module is compatible for Fixed style and modular style SLC 500.
The 1746-NR8 is a Resistance Temperature Detector (RTD) / Resistance module. This module accepts resistance signals from RTD sensors such as Platinum (385) 100, 200, 500 and 1000; Platinum (3816) 100, 200, 500 and 1000; Copper (426) 10, Nickel (618) 120, Nickel (672) 120, and Nickel Iron (518) 604 and direct resistance values of 0 - 150 Ohms, 0 to 500 Ohms, 0 to 1000 Ohms and 0 to 300 Ohms.
This module is exclusively used for SLC 500 systems. It may be specifically used with the Two (2) variants of SLC 500 such as Fixed and modular hardware style. It occupies single slot of any chassis used and does not require an external power supply instead, this module is powered by the backplane power generated by the system power supply.
This module is primarily used for Temperature applications as RTD sensors are specifically used to measure temperature readings. The resistance capability of this module is applicable for measuring displacement or movement or mechanical devices. Typically, it is used for measuring the length of travel, movement reflected by the decrease and increase in the resistance reading.
This module supports 2-Wire, 3-Wire, and 4-Wire RTD sensors. For a 2-wire RTD, recommended wires are Belden 9501 shielded cable or equivalent. For a 3-Wire or 4-Wire RTD, use Belden 9533 or Belden 83503 cable. For a 2-Wire RTD, avoid long cable runs as it reduces accuracy of measurement. It cannot be avoided, the effect or long wires may be minimized by using a lower gauge cable such as an AWG #16 wire instead of AWG #24. Basically, use a cable with lower resistance per foot. The terminals of the Removable Terminal Block (RTB) are intended for single wire connection only.
Channel status can be monitored via the LED indicator while the module operation can be monitored through the LED status indicator. This module has a low-pass digital filter and a programmable input filters. The module’s analog to digital conversion is sigma-delta modulation. Its auto-calibration process occurs every time the module is powered up that is also programmable to a specific cycle of every 5 minutes. The RTD types present on the 1746-NR8 module are copper, platinum, nickel-iron, and nickel. The terminal block that is compatible with this module is an Allen-Bradley 1746-RT-35 terminal block.
The backplane power consumption of the 1746-NR8 module is a maximum of 1.82 W, and the power consumption is 0.5 W at 5 Volts DC and 1.32 W at 24 Volts DC. The 1746-NR8’s backplane current consumptions are 100 mA at 5 Volts DC and 55 mA at 24 Volts DC. Its maximum common mode voltage is +/- 1 Volt, while its maximum permanent overloads are +/- 5 mA for the current and +/- 5 Volts DC. The isolation voltage of the 1746-NR8 module is continuous at 5 Volts DC between the channels and 500 Volts AC for 1 minute between the inputs and the backplane, as well as between the inputs and the chassis ground. Its operating temperature range is 32 to 140 degrees Fahrenheit, its storage temperature range is -40 to 185 degrees Fahrenheit, and its non-condensing relative humidity is 5 to 95%.
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FAQ
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2.Q:What's the delivery time ?
A: Normally we have enough stock for regular models(such as PLC FX3U-64MR/ES-A ) and we can deliver immediately at the same day after payment received. For some products that is not in stock, we normally deliver within one week.
3.Q:What is the standard of package?
A: Export standard package or special package according to customer requirement.
4.Q: Could Wusu provide technology support?
A: We're in this field for more than 15 years and we have our own technical team. Our engineer could give suggestion and help to solve the problem if there's any problem.
5.Q:Does Wusu keeps goods in stock or only trading?
A: We have warehouses in Guangzhou and HongKong and keep large stock of goods in it, that's how we promise fast delivery.
All products are covered by the Wusu Industrial Automation Company's 1 Year Warranty. Manufacturer's Warranty does not apply.
Refund and replacement
1. Please contact us within 7 days if you have any question after you receiving the items.
2.The returned items has to be in its original condition, specific reason for the return, we will
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