1794-IF8IH 模块是具有隔离输入的 HART 模拟模块

1794-IF8IH 模块是具有隔离输入的 HART 模拟模块

Allen-Bradley 1794-IF8IH FLEX I/O 模块是具有隔离输入的 HART 模拟模块。它已被北美危险场所认证标准批准用于在危险工业环境中安全操作。Allen-Bradley 1794-IF8IH FLEX I/O 模块具有 8 个隔离输入，也是单端输入。

它与 Allen-Bradley Flex I/O 1794-TB3 1794-TB3S 端子底座兼容。它使用Sigma-Delta转换类型，可以处理单极和双极分辨率。其单极分辨率为16位，双极性分辨率为15位加号。此 FLEX I/O 模块的外部直流电压范围为 19.2 至 31.2 伏直流，交流纹波为 5%。它的尺寸为 3.7 x 3.7 x 2.6 英寸。

Allen-Bradley 1794-IF8IH FLEX I/O HART 模拟模块出厂时已校准，但如果模块的预期应用需要现场校准，它也可以进行现场校准。它在 80 伏直流电时的 Flexbus 额定电流为 5 mA。该模块的最大额定功率在 4.8 伏直流电时为 31.2 瓦，在 16.4 伏直流电时的最大额定散热额定值为每小时 31.2 BTU。Allen-Bradley 1794-IF8IH FLEX I/O 模块可以在 32 到 131 华氏度的温度范围内安全运行，并且具有开放式外壳。它所需的电线尺寸将取决于安装它的端子底座，但电线必须始终被屏蔽，并且它应该在信号端口上的接线类别 2 和电源端口上的布线类别 3。

1794-IF8IH 模块是具有隔离输入的 HART 模拟模块

The Allen-Bradley 1794-IF8IH FLEX I/O module is a HART analog module with isolated inputs. It has been approved by the North American Hazardous Place Certification Standard for safe operation in hazardous industrial environments. The Allen-Bradley 1794-IF8IH FLEX I/O module has eight isolated inputs, also single-ended.

It is compatible with Allen-Bradley Flex I/O 1794-TB3 1794-TB3S terminal mounts. It uses the Sigma-Delta conversion type and can handle both unipolar and bipolar resolutions. Its unipolar resolution is 16 bits and its bipolar resolution is 15 bits plus. This FLEX I/O module has an external DC voltage range of 19.2 to 31.2 volts DC with an AC ripple of 5%. It measures 3.7 x 3.7 x 2.6 inches.

The Allen-Bradley 1794-IF8IH FLEX I/O HART analog module is factory calibrated, but it can also be field calibrated if the module's intended application requires field calibration. It has a Flexbus rating of 5 mA at 80 volts DC. The module has a maximum power rating of 31.2 watts at 4.8 volts DC and a maximum rated heat dissipation rating of 31.2 BTU per hour at 16.4 volts DC. The Allen-Bradley 1794-IF8IH FLEX I/O module can operate safely in a temperature range of 32 to 131 degrees Fahrenheit and has an open housing. The size of wire it requires will depend on the terminal base on which it is mounted, but the wire must always be shielded, and it should be in wiring category 2 on the signal port and wiring category 3 on the power port.

1794-IF8IH 模块是具有隔离输入的 HART 模拟模块

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