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技術(shù)說(shuō)明：PXI-2527 NI 多路復(fù)用器開關(guān)模塊 PXI DMM模塊系列
這倪PXI-2527(零件號(hào):778572-27)是300V 32通道，多路復(fù)用器開關(guān)模塊這是中高密度自動(dòng)化測(cè)試應(yīng)用的理想選擇。具有高功率、更高效的機(jī)電繼電器倪PXI-2527是PXI DMM模塊系列的前端，為各種測(cè)量提供簡(jiǎn)單的通道擴(kuò)展。該開關(guān)模塊支持多種通道配置，如1線64 × 1、1線雙路32 × 1、2線32 × 1、2線32 × 1、4線16 × 1等。
對(duì)于硬件觸發(fā)和繼電器監(jiān)控的確定性操作PXI國(guó)家儀器公司-2527自帶繼電器計(jì)數(shù)功能。該模塊的測(cè)量等級(jí)為I類。因此，它有望通過高達(dá)300 V的信號(hào)電壓。然而，它可以承受高達(dá)1500 V的脈沖電壓。利用該模塊，用戶可以實(shí)現(xiàn)每通道60 W、62.5 VA(值)的開關(guān)功率。在單線和雙線配置中(端接電阻為50ω)倪PXI-2527在10 kHz、10 kHz和1 MHz頻段上分別提供> 80 dB、> 60 dB和> 40 dB。該器件的開關(guān)帶寬為30 MHz。它配有一個(gè)公100位HDI直角I/O連接器。
這多路復(fù)用器開關(guān)模塊具有可現(xiàn)場(chǎng)更換的閉鎖機(jī)電繼電器，能夠在典型條件下在1 ms內(nèi)運(yùn)行。這些繼電器的預(yù)計(jì)壽命為1 x 108次循環(huán)，繼電器觸點(diǎn)材料為鍍金鈀釕。為了實(shí)現(xiàn)精確的熱電偶測(cè)量，用戶可以利用PXI-2527與NI TB-2627一起使用。提供的NI軟件程序可以將熱電偶電壓轉(zhuǎn)換為熱電偶溫度。
鎳裝置重7.4盎司。，尺寸為8.5 x 0.8 x 5.1英寸。在物理維度上。它的推薦工作溫度范圍為0°C至55°C，存儲(chǔ)溫度范圍為–20°C至70°C，5 V時(shí)的功率要求為6 W，3.3 V時(shí)為2.5 W，此外，它的工作隨機(jī)振動(dòng)為5至500 Hz，0.3 grms，非工作隨機(jī)振動(dòng)為5至500 Hz，2.4 grms。
PXI-2527
The NI PXI-2527 (Part Number: 778572-27) is a 300 V, 32-Channel, Multiplexer Switch Module that is ideal for a broad range of medium-to-high-density automated test applications. Featured with high-power, more efficient electromechanical relays, the NI PXI-2527 is the perfect front end for the range of PXI DMM modules, providing straightforward channel expansion for various measurements. This switch module supports numerous channel configurations, such as 1-wire 64 × 1, 1-wire dual 32 × 1, 2-wire 32 × 1, 2-wire 32 × 1, 4-wire 16 × 1, etc.
For deterministic operation with hardware triggers and relay monitoring, the National Instruments PXI-2527 comes featured with onboard relay counting. This module is graded for Measurement Category I. Thus, it is expected to pass signal voltages up to 300 V. However, it can withstａnd up to 1500 V impulse voltages. With this module, the user can achieve 60 W, 62.5 VA (maximum) switching power per channel. In 1-wire and 2-wire configurations (with 50 Ω termination), the NI PXI-2527 provides >80 dB, > 60 dB, and >40 dB over 10 kHz, 10 kHz, and 1 MHz frequency bands respectively. The device has a maximum switch bandwidth of 30 MHz. It is equipped with a male 100 position HDI right angle I/O connector.
This Multiplexer Switch Module has field replaceable latching electromechanical relays capable of operating within 1 ms in typical conditions. These relays have 1 x 108 cycles for their estimated time of life and the relay contact material is gold covered palladium-ruthenium. For accurate thermocouple measurements, the user can utilize the PXI-2527 in conjunction with the NI TB-2627. The NI software program provided can convert a thermocouple voltage to the thermocouple temperature.
The NI device weighs 7.4 oz., and measures 8.5 x 0.8 x 5.1 in. in physical dimensions. It has a recommended operating temperature range of 0 °C to 55 °C, a storage temperature range of –20 °C to 70 °C, and power requirements of 6 W at 5 V and 2.5 W at 3.3 V. Additionally, it has an operating random vibration of 5 to 500 Hz, 0.3 grms, and a non-operating random vibration of 5 to 500 Hz, 2.4 grms.
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