罗斯蒙特（ROSEMOUNT）248RANA 导轨式温度变送器
订货型号： 248RANA导轨式温度变送器
MODEL N0: 248RANA
公司名称： 西安精敏机电
| Company Name: Xi'an Jing Min Electro-Mechanical-Equipment Co., Ltd
罗斯蒙特248RANA温度变送器(导轨式)系列具备基于微处理器的电子元件，具有优异性能和较高灵活性。
采用可靠故障模式的刚性故障跨接线
1 年的长期稳定性
线性化输出与输入/输出隔离
基于微处理器的通用变送器
RTD、热电偶、mV 或 Ohm 输入
可安装于导轨安装套件内，专门为控制室封闭通道而设计
罗斯蒙特248导轨式温度变送器典型型号:
Rosemount罗斯蒙特248RANA
Rosemount罗斯蒙特248RANAQ4
Features of the Model 248 include:
| l Accepts inputs from a wide variety of RTD and thermocouple sensors
| l Configuration using HART protocol
| l Electronics that are completely encapsulated in epoxy and enclosed in a plastic housing, making the transmitter extremely durable and ensuring long-term reliability
| l A compact size and three housing options allowing mounting flexibility in the field
| l Assembly including the transmitter,sensor, housing, thermowell, and extension accessories that can be ordered in one model number
Electrical temperature sensors such as RTDs and thermocouples produce low-level signals proportional to their sensed temperature. The Model 248 converts the low-level sensor signal to a standard 4-20mA dc signal that is relatively insensitive to lead length and electrical noise. This current signal is then transmitted to the control room via two wires.
The transmitter can be commissioned before or after installation. It may be useful to commission it on the bench,before installation,to ensure proper operation and to become familiar with its functionality. Make sure the instruments in the loop are installed in accordance with intrinsically safe or non-incendive field wiring practices before connecting a HART communicator in an explosive atmosphere.
Inustry’s best-in-class total performance of ±0.15%
Total performance is the true measure of “real-world”transmitter performance. Using superior sensor technology and engineered for optimal performance,the 3051 delivers unprecedented ±0.04% reference accuracy,resulting in total operating performance of ±0.15%. Superior total performance equates to reduced variability and improved plant safety.
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