描述

1746-NR8 slc8點電阻輸入模塊

1746-NR8是一個電阻溫度檢測器(RTD) /電阻模塊。該模塊接受來自鉑金(385)100、200、500和1000等RTD傳感器的電阻信號;白金(3816)100、200、500和1000;銅(426)10，鎳(618)120，鎳(672)120，鎳鐵(518)604和直接電阻值為0 – 150歐姆，0至500歐姆，0至1000歐姆和0至300歐姆。

該模塊專門用于SLC 500系統(tǒng)。它可以專門用于SLC 500的兩(2)種變體，例如固定和模塊化硬件樣式。該模塊占用機(jī)箱的單個槽位，不需要外部供電，由系統(tǒng)電源產(chǎn)生的背板供電。

該模塊主要用于溫度應(yīng)用，因為RTD傳感器專門用于測量溫度讀數(shù)。該模塊的抗阻能力適用于測量位移或運動或機(jī)械裝置。通常，它用于測量行程長度，由電阻讀數(shù)的減少和增加所反映的運動。

該模塊支持2線、3線和4線RTD傳感器。對于2線制RTD，建議使用Belden 9501屏蔽電纜或等效電纜。對于3線制或4線制RTD，使用Belden 9533或Belden 83503電纜。對于2線RTD，避免長電纜運行，因為它會降低測量精度。這是不可避免的，使用較低規(guī)格的電纜，如awg# 16線代替awg# 24線，可以最大限度地減少長線的影響。基本上，使用每英尺電阻較低的電纜?？梢苿佣俗幼?RTB)的端子僅用于單線連接。

通過LED指示燈可以監(jiān)控通道狀態(tài)，通過LED狀態(tài)指示燈可以監(jiān)控模塊運行情況。該模塊具有一個低通數(shù)字濾波器和一個可編程輸入濾波器。該模塊的模擬到數(shù)字轉(zhuǎn)換是sigma-delta調(diào)制。它的自動校準(zhǔn)過程發(fā)生每次模塊上電，也可編程到每5分鐘的特定周期。1746-NR8模塊上的RTD類型有銅、鉑、鎳鐵和鎳。與該模塊兼容的端子排是艾倫-布拉德利1746-RT-35端子排。

1746-NR8模塊背板功耗最大為1.82 W，直流5v時功耗為0.5 W，直流24v時功耗為1.32 W。1746-NR8的背板電流消耗在5伏直流時為100毫安，在24伏直流時為55毫安。其最大共模電壓為+/- 1伏特，而其最大永久過載為+/- 5毫安電流和+/- 5伏特直流。1746-NR8模塊的隔離電壓在通道之間為5伏直流電，在輸入和背板之間以及輸入和機(jī)箱接地之間為500伏交流電，持續(xù)1分鐘。其工作溫度范圍為32至140華氏度，其儲存溫度范圍為-40至185華氏度，其非冷凝相對濕度為5%至95%。

1746-NR8 slc8點電阻輸入模塊

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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Company Introduction:
Chengdu Sunshine Xihe Co., Ltd. specializes in one-stop procurement consulting for imported industrial spare parts, offering original equipment and professional discontinued parts services. We are committed to providing efficient and reliable automation solutions for our customers. Customer support fast responseThe network of partners spans all continentsGlobal partner networkAlways achieve more delivery, be it parts, service or speed



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