UM344-2

CALIBRATION AND MAINTENANCE

 

 

 

 

 

 

Bench Power

_

 

Supply (DC)

+

 

 

 

X02827S1 1 of 2

Digital+

Microammeter _

MXC

250

Signal Test

_ _

+ +

1 2 3

Model 344

Terminals

FIGURE 6-3 RTD/Ohm Current Source Calibration Set Up

3.Read and note, to three decimal places, the value of the forcing current as displayed by the digital microammeter.

4.In response to the screen prompt, enter the noted current (in microamps) into the MXC. For example: 51.125 μA.

5. Press ENTER (F4). The screen will display:

WARNING: BURNING

 

EPROM WILL CHANGE

 

 

CALIBRATION CHARAC-

Press CONT (F4) to calibrate.

TERISTICS

 

CONT

 

ABRT

 

Press ABRT (F3) to QUIT without changing calibration.

Calibration is now complete.

6.Turn OFF the power supply.

Disconnect the test microammeter and reconnect the test resistance decade box to the transmitter (Figure 6-2).

7.Turn ON the power supply and return to Section 6.1.3.1 and again perform a calibration check.

If accuracy is within specifications, disconnect test equipment. Connect all wires and install enclosure cap.

If accuracy is still NOT within specifications, additional calibration is required.

1)Turn OFF the power supply.

September 1995

6-9

Page 111
Image 111
Siemens UM344-2 user manual Press Cont F4 to calibrate

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.