电压输入模块SCXI-1120D 可多路复用控制DAQ设备的单个通道

SCXI-1120D

SCXI电压输入模块

8通道隔离，±5 VDC，22.5 kHz 滤波器，用于SCXI的电压输入模块—SCXI‑1120D专为热电偶、毫伏、伏特和电流信号的信号调理和隔离而设计。 该模块具有隔离输入通道，提供250 Vrms工作隔离电压以及可选的放大器增益。 每个通道还包括一个4.5 kHz或22.5 kHz可配置低通滤波器。 所有通道可多路复用控制DAQ设备的单个通道，从而增加了DAQ系统的通道数。

National Instruments SCXI-1120D 电压输入模块

NI SCXI-1120D（部件号：776572-20D）8通道电压输入模块用于对需要20 kHz带宽和高共模电压的热电偶、电流、电压和毫伏源进行经济的信号调理。每个通道都有一个可配置的4.5 kHz或22.5 kHz低通滤波器。该电压输入模块可与NI的MIO、1200系列和Lab PC+设备一起使用，具有完整的功能。SCXI 1120D 还可与 Lab-NB、Lab-LC、Lab-PC 和 PC-LPM-16/PnP 设备配合使用。但是，当模块配置为多路复用输出模式时，这些设备都无法扫描模块。如果SCXI-1120D与屏蔽接线端子一起使用，则添加的螺丝端子可确保将信号轻松连接到模块上。

NI SCXI-1120D 的 另一个 有用 的 方法 是 作为 快速 扫描 信号 调节 器， 用于 生产 测试、 实验 室 测试 和 工业 过程 监测 等 应用。SCXI-1120D上的每个输入通道都具有两个增益级，可由用户配置。第一个增益级提供 1、5、10、50 和 100 的增益。另一方面，第二增益级提供 1、2、5、10 和 20 的增益。此外， NI SCXI-1120D 的 固定 前 级 增益 为 0.5。

电压输入模块SCXI-1120D 可多路复用控制DAQ设备的单个通道

SCXI-1120D

SCXI voltage input module

8-channel isolated, ±5 VDC, 22.5kHz filter, voltage input module for SCXI - SCXI‑1120D is designed for signal conditioning and isolation of thermocouple, millivolt, volt and current signals. The module has an isolated input channel that provides 250 Vrms operating isolation voltage as well as an optional amplifier gain. Each channel also includes a 4.5kHz or 22.5kHz configurable low-pass filter. All channels Multiplexes a single channel that controls a DAQ device, thereby increasing the number of channels in a DAQ system.

National Instruments SCXI-1120D voltage input module

The NI SCXI-1120D (Part number: 776572-20D) 8-channel voltage input module is used for economical signal conditioning of thermocouples, currents, voltages and millivolt sources requiring 20 kHz bandwidth and high common-mode voltage. Each channel has a configurable 4.5 kHz or 22.5kHz low-pass filter. The voltage input module is fully functional and can be used with NI's MIO, 1200 series and Lab PC+ devices. The SCXI 1120D can also be used with Lab-NB, Lab-LC, Lab-PC and PC-LPM-16/PnP devices. However, none of these devices can scan the module when the module is configured in multiplexed output mode. If the SCXI-1120D is used with a shielded terminal, the added screw terminal ensures that the signal is easily connected to the module.

Another useful use of the NI SCXI-1120D is as a fast scan signal regulator for applications such as production testing, laboratory testing, and industrial process monitoring. Each input channel on the SCXI-1120D has two gain stages that can be configured by the user. The first gain stage provides gains of 1, 5, 10, 50 and 100. On the other hand, the second gain stage provides gains of 1, 2, 5, 10, and 20. In addition, the NI SCXI-1120D has a fixed forestage gain of 0.5.