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  • ABB NTU-7B1 RTD Input Module
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  • ABB NTU-7B1 RTD Input Module

    110V-380V
    5W-130W
    1A-30A
    1 year
    30
    United States, France, Japan, Viet Nam, Australia, Russia, Germany, Italy, Arabia
    NTU-7B1 RTD Input Module
    • ¥6641.00
      ¥12282.00
      ¥6641.00
      ¥6641.00
    • Satisfaction:

      Sales: 0

      Review: 0

    Weight:2.000KG
    • Quantity:
    • (Inventory: 2)
Description
NTU-7B1 RTD Input Module

ABB NTU-7B1 RTD Input Module

Basic Information

Model and name: ABB NTU - 7B1 RTD Input Module, ‘NTU - 7B1’ is the specific model number of this product in the ABB product line. This is a RTD input module, mainly used in industrial automation control systems to convert temperature signals collected by RTD sensors into digital or analogue signals for processing by the control system.

Series: Belongs to the ABB industrial automation control module series. In this series, there are other types of input modules (such as analogue input modules, digital input modules), output modules, communication modules, etc., which cooperate with each other to form a complete industrial automation control system.

Application Scenario Correlation: Widely used in industrial fields that require precise temperature measurement and control, such as chemical, electric power, pharmaceutical, food and beverage, HVAC and other industries. In these industries, it is used to monitor the temperature of various equipment and processes, such as the temperature of reaction kettle, motor winding temperature, pipeline fluid temperature and so on.

Functional features

RTD signal acquisition function

Compatible with many types of RTDs: It is compatible with many types of RTD sensors, such as Pt100, Pt1000 and so on. These RTD sensors have good linearity and accuracy in different temperature ranges, and the module can automatically identify and process signals according to the type of RTD connected, thus adapting to a variety of industrial temperature measurement needs.

High-precision signal acquisition: High-precision acquisition of RTD sensor signals. As the resistance value of RTD changes with temperature, the module can accurately measure such small resistance changes and convert them into temperature values. Its high temperature measurement accuracy, for example, for a Pt100 RTD, may reach ±0.1°C - ±0.3°C, depending on the design of the module and the operating conditions, which provides a reliable data base for precise temperature control in industrial processes.

Multiple Input Channels: Typically features multiple input channels in different configurations such as 4-channel or 8-channel. This makes it possible to connect multiple RTD sensors at the same time, enabling data acquisition from multiple temperature monitoring points and facilitating centralised monitoring and management of temperatures at different locations or devices in a single system.

Signal Processing and Conversion Functions

Signal linearisation: The resistance - temperature characteristics of RTDs are not completely linear, and the module is able to linearise the collected signal. Through the built-in algorithm or calibration data, the non-linear RTD signal is converted to a signal with linear relationship with temperature, which makes it more convenient and accurate for temperature calculation and processing in the control system.

Signal Conversion Format: The collected RTD signals are converted into a format suitable for transmission in industrial communication networks, e.g. analogue signals are converted into digital signals and coded according to specific industrial communication protocols (e.g. Profibus, Modbus, etc.). This makes it easy to transmit temperature data to a host controller or other control device for remote monitoring and control of temperature signals.

Reliability and Protection Functions

Electrical isolation protection: In order to prevent external electrical interference from damaging the module's internal circuits and control system, the module has an electrical isolation function. Setting up isolation circuits between input channels and internal processing circuits can effectively isolate signals with different potentials, and the isolation voltage level is high, which can generally reach thousands of volts, for example, between 1500V - 3000V AC. This isolation measure is very important in industrial environments, especially in the presence of high-voltage equipment or strong electromagnetic interference, to ensure the safe and stable operation of the module.

Over-voltage and over-current protection: Built-in over-voltage and over-current protection mechanisms. When the input signal is over-voltage or over-current, the module can automatically take protective measures, such as limiting the input current, cutting off the input channel, or sending out alarm signals, in order to prevent the module itself and the connected external equipment from being damaged. This is a very common protection measure in industrial environments, as the wiring of RTD sensors may be affected by various electrical faults.

Technical Parameters

Electrical Parameters

Working voltage range: The working voltage is generally DC voltage, the range may be around 18V - 30V DC, so that it can adapt to the common power supply situation in the industrial field, to ensure that the module can work stably under different power conditions.

Input Signal Range (Resistance Value): The input signal range is determined according to the type of RTD supported, for example, for Pt100 RTD, the resistance value range is around 100Ω (at 0℃), which varies with the temperature change, and the module is able to accurately measure the resistance change within this range. At the same time, the module's power consumption of the input signal is low, in order to avoid excessive self-heating effect on the RTD sensor, affecting the measurement accuracy.

Power Consumption: Power consumption is low, usually between a few watts and a dozen watts, depending on the module's operating status (e.g., number of channels in use, complexity of signal processing, etc.) and the module's design. Low power consumption design helps to run stably for a long time in industrial environments, and it can reduce the heat generated by the equipment and improve the reliability of the equipment.

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