這鎳SCXI-1503(零件號:779638-01)非常適合測量電阻式傳感器，如RTD或熱敏電阻。該模塊上的16個通道各有一個增益可選為1或100的放大器，以及一個截止頻率為5 Hz的低通濾波器，以消除50/60 Hz噪聲。這RTD模塊可以通過編程方式將每個輸入連接到地，允許對每個輸入進行自校準，以最大限度地降低失調(diào)漂移誤差，從而提高精度。幾個SCXI-1503溫度輸入模塊和其他SCXI模塊可以復(fù)用到DAQ儀器的一個通道中。這導致可以數(shù)字化的模擬輸入信號數(shù)量大幅增加。

這SCXI 1503模塊可以與SCXI-1306前置安裝接線盒其具有用于連接信號的螺絲端子。這鎳SCXI-1503可以與SCXI-1310這是一個用于自定義鏈接的定制工具包。第三種選擇是使用TBX-96，這是一個帶螺絲端子的DIN EN安裝接線盒。

這SCXI-1503電流源不斷提供16路100 μA電流激勵。當SCXI機箱通電時，這些電流源打開。電流源的精度在額定值的0.05%以內(nèi)，溫度漂移最大為5 ppm/°C。電流源的精確性和穩(wěn)定性確保了它們適用于測量極其精確的電阻。

The NI SCXI-1503 (Part Number: 779638-01) is ideal for measuring resistive transducers like RTDs or thermistors. Each of the sixteen channels on this module has an amplifier with a selectable gain of 1 or 100, as well as a lowpass filter with a 5 Hz cutoff frequency to discard 50/60 Hz noise. This RTD module can programmatically link every input to ground, which increases the preciseness by allowing a self-calibration of every input to minimize offset drift errors. Several SCXI-1503 Temperature Input Modules and other SCXI modules can be multiplexed into one channel on the DAQ instrument. This results in vastly increasing the quantity of analog input signals that can be digitized.

The SCXI 1503 module can be used with the SCXI-1306 Front-Mounting Terminal Block which has screw terminals for linking signals. The NI SCXI-1503 can be used with the SCXI-1310 as well, which is a customized kit for custom linking. The third option is to use the TBX-96, which is a DIN EN Mount Terminal Block with screw terminals.

The SCXI-1503 current sources unceasingly deliver 16 channels of 100 μA current excitation. When the SCXI chassis is powered on, these current sources are on. The current sources are created to be precise within ±0.05 percent of the designated value with a temperature drift of ±5 ppm/°C at the most. The preciseness and steadiness of the current sources ensures they are suitable for measuring resistance to an extreme degree of preciseness.