CALIBRATION AND MAINTENANCE

UM344-2

1.Turn off power to the transmitter and remove protective enclosure cap to access the LCD.

2.Snap a grounding wrist strap on wrist and connect ground clip to transmitter or mounting bracket.

3.As shown in Figure 4-10, disconnect cable from Digital Meter Board and slide cable from cable slot in Board.

4.Connect the cable to the spare LCD. Restore power to the transmitter and check that the spare LCD is functioning correctly. To repeat the test, use the MXC to TEST the transmitter.

5.If the spare LCD functions correctly, replace the defective LCD. Refer to Section 4.4.4.

If the spare LCD exhibits the original problem, replace the Electronics Module. Refer to Section 6.5.

6.3.4 Enclosure Thread Lubrication

Enclosure caps should turn smoothly and easily on the enclosure threads. These threads are factory coated with a wet, paste-type, anti-seize compound such as Never-Seez by Emhart Bostik.

ŸDo not use force to thread a cap onto the enclosure.

ŸBe careful not to wipe off the lubricant while handling the transmitter.

ŸRecoat the enclosure threads if the cap is at all difficult to turn on the enclosure threads.

ŸAlways inspect the enclosure O-ring for damage before installing a cap.

6.4 NON-FIELD-REPLACEABLE ITEMS

ŸEnclosure Cap Display Viewing Glass: Agency regulations do not permit field replacement of a broken or damaged glass as this would invalidate the enclosure's explosion proof rating. Replace the entire damaged enclosure end cap assembly.

Ÿ

Power/Sensor Input Terminal Strip:

A damaged (unusable) terminal strip requires the

 

 

replacement of the enclosure body

Ÿ

Electronics Baseboard:

---

6-26

September 1995

Page 128
Image 128
Siemens UM344-2 user manual Enclosure Thread Lubrication, NON-FIELD-REPLACEABLE Items

UM344-2 specifications

The Siemens UM344-2 is a cutting-edge industrial controller designed to meet the demands of modern automation and control systems. This powerful device is specifically developed for use in various applications, including manufacturing, process control, and machinery integration. The UM344-2 stands out for its versatility and robust performance in harsh industrial environments.

One of the main features of the Siemens UM344-2 is its high processing speed, which allows for real-time data processing and decision-making. The controller utilizes advanced microprocessor technology, ensuring quick response times and efficient operation. Its architecture supports multitasking, enabling it to manage multiple processes simultaneously without compromising performance.

The UM344-2 features a modular design, which provides flexibility in configuration and scalability. Users can easily add or remove modules to tailor the system to specific application requirements. This adaptability is beneficial for businesses that need to scale their operations or adjust to changing production demands. The controller is compatible with a variety of I/O modules, allowing for seamless integration with other equipment and systems.

In terms of connectivity, the Siemens UM344-2 supports various communication protocols, including Profibus, Profinet, and Ethernet. This versatility ensures smooth data exchange between the controller and other devices in the automation ecosystem, facilitating comprehensive monitoring and control. The inclusion of these communication standards enhances interoperability and allows for the integration of legacy systems with newer technology.

The Siemens UM344-2 is equipped with advanced diagnostic tools, which enable users to monitor system performance and detect potential issues in real-time. This feature reduces downtime and maintenance costs by allowing for proactive management of the system. The controller also supports remote access capabilities, enabling technicians to troubleshoot and configure systems from off-site locations.

Safety is a critical consideration in industrial environments, and the UM344-2 is designed with this in mind. It incorporates safety-certified features, ensuring compliance with international safety standards. Users can implement safety functions directly within the controller, streamlining system design and reducing the need for external safety components.

Overall, the Siemens UM344-2 exemplifies the fusion of technology and practical application, making it an essential component for businesses looking to enhance their automation processes. With its high performance, flexibility, and focus on safety, the UM344-2 is a reliable choice for industries aiming for efficiency and innovation in their operations.