How to use the relative measurement function of Yokogawa UT350?

As a supplier of the Yokogawa UT350, I'm excited to share with you how to effectively use the relative measurement function of this remarkable instrument. The Yokogawa UT350 is a high - precision and versatile device that offers a wide range of measurement capabilities. The relative measurement function is particularly useful in many industrial and scientific applications, allowing users to obtain accurate relative values based on a set reference.

Understanding the Relative Measurement Concept

Before diving into the practical steps of using the relative measurement function of the Yokogawa UT350, it's essential to understand the concept of relative measurement. In simple terms, relative measurement is the process of measuring a quantity in relation to a pre - set reference value. Instead of getting an absolute measurement, you get the difference between the measured value and the reference value. This can be extremely useful in scenarios where you are interested in changes or variations in a parameter rather than its absolute magnitude.

For example, in a chemical process, you might want to monitor the change in temperature or pressure over time. By setting an initial reference value, you can easily track how these parameters deviate from the starting point.

Preparing the Yokogawa UT350 for Relative Measurement

1. Power On and Initial Setup
   First, power on the Yokogawa UT350. Make sure it is properly connected to the power source and that all necessary cables are securely attached. Once the device boots up, you can start configuring it for relative measurement. The UT350 has a user - friendly interface with a clear display and intuitive menu navigation. You can access the main menu by pressing the appropriate button on the device.

2. Selecting the Measurement Parameter
   The Yokogawa UT350 can measure various parameters such as voltage, current, resistance, temperature, etc. Use the menu buttons to select the parameter you want to measure. For instance, if you are measuring voltage, navigate to the voltage measurement option in the menu. You can find detailed instructions on parameter selection in the device's user manual.

3. Connecting the Probes or Sensors
   Depending on the measurement parameter, connect the appropriate probes or sensors to the Yokogawa UT350. For voltage measurement, connect the voltage probes to the corresponding input terminals. If you are using a Yokogawa PH8EFP Sensor for pH measurement, make sure it is properly connected and calibrated.

Setting the Reference Value

1. Activating the Relative Measurement Mode
   Once you have selected the measurement parameter and connected the necessary probes or sensors, you need to activate the relative measurement mode. In the main menu of the Yokogawa UT350, look for the option related to relative measurement. It might be labeled as "REL" or "Relative". Select this option to enter the relative measurement mode.

2. Setting the Reference
   After entering the relative measurement mode, you need to set the reference value. There are two common ways to do this:

• Current Value as Reference: If the current measured value is the reference you want to use, press the "Set Reference" button. The UT350 will store the current value as the reference, and all subsequent measurements will be displayed as the difference from this reference.
• Manual Input of Reference: In some cases, you might want to set a specific reference value that is not the current measured value. You can use the keypad on the device to manually enter the reference value. Make sure to double - check the input to avoid errors.

Taking Relative Measurements

1. Monitoring the Display
   Once the reference value is set, the Yokogawa UT350 will start displaying the relative measurement values. The display will show the difference between the current measured value and the reference value. Positive values indicate that the current measurement is higher than the reference, while negative values mean it is lower.

2. Recording and Analyzing Data
   You can record the relative measurement data for further analysis. The Yokogawa UT350 might have a built - in data logging function. If so, you can configure it to record the relative measurement values at regular intervals. You can then transfer the data to a computer for more in - depth analysis using software tools.

   

Applications of the Relative Measurement Function

1. Quality Control in Manufacturing
   In manufacturing processes, the relative measurement function of the Yokogawa UT350 can be used to ensure product quality. For example, when manufacturing electronic components, you can use relative measurement to monitor the change in resistance or capacitance of the components over time. By setting a reference value based on the desired specifications, you can quickly identify any components that deviate from the standard.

2. Environmental Monitoring
   In environmental monitoring applications, the relative measurement function is very useful. For instance, when measuring air quality parameters such as temperature and humidity, you can set a reference value based on the normal environmental conditions. Any significant deviation from this reference can indicate a potential problem, such as a malfunctioning HVAC system or a chemical leak.

3. Research and Development
   In research and development, scientists and engineers often need to study the changes in physical or chemical properties of materials. The relative measurement function of the Yokogawa UT350 allows them to accurately track these changes. For example, in a battery research project, you can use relative measurement to monitor the change in voltage of the battery during charging and discharging cycles.

Troubleshooting Common Issues

1. Inaccurate Measurements
   If you are getting inaccurate relative measurements, first check the connection of the probes or sensors. Loose connections can lead to unstable measurements. Also, make sure the reference value is set correctly. If the problem persists, the probes or sensors might be damaged or need calibration. You can refer to the user manual of the Yokogawa UT350 for calibration instructions.

2. Display Problems
   If the display is not showing the relative measurement values correctly, check the device's settings. Make sure the relative measurement mode is still active and that the display is set to show the correct units. If the display is blank or shows an error message, try restarting the device. If the problem continues, contact the technical support team.

Conclusion

The relative measurement function of the Yokogawa UT350 is a powerful tool that can significantly enhance the accuracy and relevance of your measurements. By understanding how to set the reference value and take relative measurements, you can apply this function in various fields, from manufacturing to environmental monitoring. Whether you are a professional engineer or a researcher, the Yokogawa UT350 with its relative measurement function can help you achieve more precise and meaningful results.

If you are interested in purchasing the Yokogawa UT350 or other related products like the Yokogawa Controller UT35A, feel free to contact us for a detailed discussion on your requirements and a competitive quote. We are committed to providing high - quality products and excellent customer service.

References

• Yokogawa UT350 User Manual
• Industrial Measurement and Instrumentation Textbooks