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Figure 12 - Welded Meter Body for All-Welded Remote Seal Solution. The welded ST 3000 meter body is an important part of an All-Welded Remote Seal Solution, which is commonly used in Vacuum applications.

Figure 12

Description

The ST 3000 transmitter can replace any 4 to 20 mA output transmitter in use today and operates over a standard two-wire system.

The measuring means is a piezoresistive sensor, which actually contains three sensors in one. It contains a differential pressure sensor, a temperature sensor, and a static pressure sensor.

Microprocessor-based electronics provide higher span-turndown ratio, improved temperature and pressure compensation, and improved accuracy.

The transmitter’s meter body and electronics housing resist shock, vibration, corrosion, and moisture. The electronics housing contains a compartment for the single-board electronics, which is isolated from an integral junction box. The single-board electronics is replaceable and interchangeable with any other ST 3000 Series 100 or Series 900 model transmitter.

Like other Honeywell transmitters, the ST 3000 features two-way communication and configuration capability between the operator and the transmitter through several Honeywell field-rated portable configuration devices, including the Smart Field Communicator (SFC) and the Multiple Communication Configurator (MC ToolKit). While both are made for in- field use, the MC Toolkit also can be ordered for use in intrinsically safe environments.

The SCT 3000 Smartline® Configuration Toolkit provides an easy way to configure instruments using a personal computer. The toolkit enables configuration of devices before shipping or installation. The SCT 3000 can operate in the offline mode to configure an unlimited number of devices. The database can then be loaded down-line during commissioning.

Features

Choice of linear or square root output conformity is a simple configuration selection.

Direct digital integration with Experion PKS and other control systems provides local measurement accuracy to the system level without adding typical A/D and D/A converter inaccuracies.

Unique piezoresistive sensor automatically compensates input for temperature and static pressure.Added “smart” features include configuring lower and upper range values, simulating accurate analog output, and selecting preprogrammed engineering units for display.

Smart transmitter capabilities with local or remote interfacing means significant manpower efficiency improvements in commissioning, start-up, and ongoing maintenance functions.

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Honeywell STR93D, STR94G manual Description, Features

STR94G, STR93D specifications

The Honeywell STR93D and STR94G are advanced temperature controllers designed for precision temperature management in a variety of applications, from industrial processes to HVAC systems. These intelligent devices are engineered to enhance efficiency, reliability, and user flexibility, catering to both simple and complex control scenarios.

The STR93D is characterized by its dual-channel capability, making it ideal for processes requiring simultaneous temperature monitoring and control. Its robust design ensures stable performance even in demanding environments. The controller features a user-friendly interface that includes a large, backlit display, allowing operators to easily navigate through menus and settings. The intuitive design simplifies the setup process, reducing installation time and minimizing user error.

On the other hand, the STR94G takes automation a step further with its advanced features and connectivity options. This model is equipped with a comprehensive set of control algorithms, including PID, on-off, and fuzzy logic controls, ensuring precise temperature regulation. The STR94G also supports multiple input types, such as thermocouples and RTDs, providing versatility across various applications.

Both models incorporate Honeywell's proprietary Smart Control technology, which optimizes energy consumption and enhances operational efficiency. This technology not only ensures accurate temperature management but also contributes to reduced operational costs by minimizing energy waste. Additionally, the controllers support communication protocols such as Modbus and BACnet, facilitating easy integration into existing systems and enabling remote monitoring capabilities.

Both controllers are built with durability in mind, featuring a rugged housing that protects against environmental factors, including dust and moisture. This makes them suitable for use in harsh industrial settings as well as in less demanding environments. Their adaptability and advanced technology provide users with solutions that not only meet but exceed industry standards.

In summary, the Honeywell STR93D and STR94G are exemplary temperature controllers that stand out in their field. They combine advanced control features, robust design, and exceptional connectivity, making them suitable for a wide range of applications. Whether for industrial use or commercial HVAC installations, these controllers deliver reliability and efficiency, setting a benchmark in temperature control solutions.