☆型号:1797-IE8 模拟量输入模块 非隔离模拟输入通道
【产品详情】
Allen-Bradley 1797-IE8 是一款 Flex Ex 模拟量输入模块。该模块具有本质安全 (IS) 输入类型,额定值为 Ex ia IIB/IIC T4 AEx ia IIC T4 类 I、II、III 类 1 组 A-G T4 和本质安全模块类型 Ex ib IIB/IIC T4 AEx ib IIC T4 类 I、II、III 类 1 组 A-D T4。
1797-IE8 具有八 (8) 个非隔离模拟输入通道。每个通道都经过单独配置,能够接收分辨率为 16 位的 0-20 mA 和 4-20 mA 信号。它将模拟数据在内部转换为具有可配置数据格式的数字数据。该模块在 20 °C (68 °F) 时具有输出信号范围的 0.1% 的精度和输出信号范围的 0.05%/C 的温度漂移。
这些模块的最快更新时间约为 200 毫秒,最差更新时间约为 1600 微秒。此更新速率很大程度上取决于模块与通信适配器的距离。
1797-IE8 设计有内部诊断功能,使模块能够检测报警情况,例如引线断裂检测、超量程/欠量程报警和远程变送器报警。
1797-IE8 需要同等额定的端子底座。兼容的终端底座包括 1797-TB3 或 1797-TB3S。它不能与标准 Flex I/O 端子底座一起使用。与端子底座建立 I/O 连接时,建议的电线尺寸为 4mm2 (12 AWG),绞合铜线。此外,推荐的绝缘厚度为 1.2 毫米(3/64 英寸)。模块的按键开关分配为位置 3。
☆型号:1797-IE8 模拟量输入模块 非隔离模拟输入通道
【英文介绍】
Allen-Bradley 1797-IE8 is a Flex Ex analog input module. The module has an intrinsically safe (IS) input type, The rating is Ex ia IIB/IIC T4 AEx ia IIC T4 Class I, II, III Class 1 Group A-G T4 and intrinsically safe module type Ex ib IIB/IIC T4 AEx ib IIC T4 Class I, II, III Class 1 Group A-D T4.
1797-IE8 has eight (8) non-isolated analog input channels. Each channel is individually configured to receive 0-20 mA and 4-20 mA signals with 16-bit resolution. It internally converts analog data into digital data with a configurable data format. The module has an accuracy of 0.1% of the output signal range at 20 °C (68 °F) and a temperature drift of 0.05%/C of the output signal range.
The fastest update time of these modules is about 200 milliseconds, and the worst update time is about 1600 microseconds. This update rate is largely dependent on the distance of the module from the communication adapter.
The 1797-IE8 is designed with an internal diagnostic function that enables the module to detect alarms, such as lead break detection, over/under range alarms, and remote transmitter alarms.
1797-IE8 requires an equally rated terminal base. Compatible terminal mounts include 1797-TB3 or 1797-TB3S. It cannot be used with standard Flex I/O terminal mounts. When establishing an I/O connection to the terminal base, the recommended wire size is 4mm2 (12 AWG) and twisted copper wire. In addition, the recommended insulation thickness is 1.2 mm (3/64 inch). The key switch of the module is assigned to position 3.
☆型号:1797-IE8 模拟量输入模块 非隔离模拟输入通道
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