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CPU86-NDP驅(qū)動(dòng)處理器板
建議使用所示的屏蔽類型。信號(hào)源的一側(cè)可能使用雙絞線時(shí)，應(yīng)連接至底盤接地。
注：通道獨(dú)立設(shè)置。電流、電壓、RTD、線性的任何混合物熱電偶或應(yīng)變計(jì)/稱重傳感器可用作輸入。線性熱電偶（AS-5B47）注意指定接收線性熱電偶輸入的通道。線性的熱電偶輸入通過(guò)插入適當(dāng)?shù)妮斎氚鼇?lái)選擇
頻道參考下圖，將現(xiàn)場(chǎng)側(cè)接線連接至適當(dāng)?shù)默F(xiàn)場(chǎng)連接器上的針腳。
線性熱電偶輸入的典型現(xiàn)場(chǎng)電路連接，圖注：熱電偶必須是由AS-5B47輸入包正在使用中。冷端補(bǔ)償由溫度完成位于接頭塊正后方的傳感器。
注：建議使用所示的屏蔽類型。信號(hào)源的一側(cè)可能使用雙絞線時(shí)，應(yīng)連接至底盤接地。
注：通道獨(dú)立設(shè)置。電流、電壓、RTD、線性的任何混合物熱電偶或應(yīng)變計(jì)/稱重傳感器可用作輸入。注意指定接收應(yīng)變計(jì)/稱重傳感器輸入的通道。拉緊通過(guò)插入合適的輸入包來(lái)選擇儀表/稱重傳感器輸入頻道參考下圖，將現(xiàn)場(chǎng)側(cè)接線連接至適當(dāng)?shù)默F(xiàn)場(chǎng)連接器上的針腳。以下模塊的應(yīng)變儀/稱重傳感器輸入快速啟動(dòng)測(cè)試
快速啟動(dòng)測(cè)試的典型現(xiàn)場(chǎng)電路連接描述如下：
z隔離電壓輸入（-10-+10 V）
z隔離電流輸入（4-20 mA）z隔離電壓輸入（-10-+10 mV）注意：此模塊在出廠時(shí)已在接頭上涂抹了nyogel潤(rùn)滑脂確保接線板連接良好的針腳。不要清除此潤(rùn)滑脂。
隔離電壓輸入（-10-+10 V）按照以下步驟配置模塊：八個(gè)通道（I/O圖中的B875）、AS–5B31006A隔離電壓輸入包和四個(gè)樣本平均值。模擬輸入模塊在出廠前進(jìn)行校準(zhǔn)。為了確保根據(jù)模塊精度，應(yīng)每年定期校準(zhǔn)微調(diào)罐。
校準(zhǔn)可配置a/D輸入需要以下工具和材料模塊：z精度為0.0001 V、電壓為10 V的精密數(shù)字讀數(shù)伏特計(jì)
規(guī)模z一把1/8英寸的薄刃螺絲刀。
z一把1/4英寸十字螺絲刀。
注：不建議對(duì)模擬電流、低帶寬4進(jìn)行校準(zhǔn)-20 mA（AS–5B3201A）型輸入包，因?yàn)槠渚冉档徒o定通道的校準(zhǔn)包括校準(zhǔn)該通道的所有八個(gè)通道單元沒(méi)有校準(zhǔn)特定通道的規(guī)定。因此，校準(zhǔn)可以使用任何一個(gè)通道和任何類型的輸入包執(zhí)行。校準(zhǔn)可以需要校準(zhǔn)信號(hào)通過(guò)輸入包。注：如果校準(zhǔn)中使用的特定輸入包超出校準(zhǔn)范圍，則使用此輸入包校準(zhǔn)的B875模塊將不正確校準(zhǔn)。
Linear Thermocouple (AS-5B47)
Note the channels designated to receive linear thermocouple inputs. Linear thermocouple inputs are selected by inserting the input pack for the appropriate channel. Refer to the diagram below and connect the field-side wiring to the proper pins on the field connector. Typical field circuit connections for linear thermocouple inputs, diagram NOTE: Thermocouple must be of the type designated by the dash number of the AS-5B47 input pack in use. Cold junction compensation is done by a temperature sensor located immediately behind the connector block. NOTE: The shield-type shown is recommended. One side of the signal source may be connected to chassis ground when using twisted pair wiring. NOTE: Channels are set independently. Any mixture of current, voltage, RTD, linear thermocouple, or strain gauge/load cell may be used as inputs.
The shield-type shown is recommended. One side of the signal source may be connected to chassis ground when using twisted pair wiring. NOTE: Channels are set independently. Any mixture of current, voltage, RTD, linear thermocouple, or strain gauge/load cell may be used as inputs.
Note the channels designated to receive strain gauge/load cell inputs. Strain gauge/load cell inputs are selected by inserting the input pack for the appropriate channel. Refer to the diagram below and connect the field-side wiring to the proper pins on the field connector. Typical field circuit connections for strain gauge/load cell inputs
Quick Start Tes
Quick start tests for the following modules are described below: z Isolated Voltage Input (-10 — +10 V) z Isolated Current Input (4 — 20 mA) z Isolated Voltage Input (-10 — +10 mV) NOTE: This module has had nyogel grease applied at the factory to the connector pins to ensure good terminal block connections. Do not remove this grease. Isolated Voltage Input (-10 — +10 V) Use the following procedure to configure the module as follows: eight channels (B875 in the I/O map), AS–5B31006A isolated voltage input pack, and four samples to be averaged.
The analog input module is calibrated at the factory prior to shipment. To ensure the module’s accuracy, the trim-pot should be calibrated regularly on a yearly interval. The following tools and materials are needed to calibrate a configurable A/D input module: z A precision digital readout voltmeter with an accuracy of 0.0001 V on a 10 V scale. z A 1/8-inch bit, thin-blade screwdriver. z A 1/4-inch Phillips-head screwdriver. NOTE: Calibration is not recommended for analog current, low bandwidth, 4— 20 mA (AS–5B32001A) type input packs because of their reduced accuracy Calibration of a given channel involves calibration of all eight channels of this module. There is no provision to calibrate a particular channel. Therefore, calibration can be performed with any one channel with any type of input pack. Calibration does require the calibration signals to pass through an input pack. NOTE: If the particular input pack used in calibration is out of calibration, then all B875 modules calibrated with this input pack will be improperly calibrated.
