11 Calibration Procedure

11 Calibration Procedure

11.1Calibration Procedure

Calibration of this instrument should be performed at regularly scheduled inter- vals by qualified authorized personnel in accordance with your company’s pol- icy. Following is the recommended procedure for calibrating this instrument.

11.1.1Calibration Equipment

Calibration requires a standard thermometer that is adequately accurate and fits properly into one of the reference holes in the block. Recommended equipment includes a laboratory grade PRT with a length of 30 to 300 mm (9 to 12 inches) and a diameter of 4.76 or 6.35 mm (3/16 or 1/4 inches). The combined accu- racy of the PRT and the readout which used to display the temperature should be 0.025°C or better.

11.1.2Calibration

The accuracy of the instrument over the full range is determined by the values of the calibration parameters R0, ALPHA, DELTA, and BETA. The calibration procedure involves measuring the error between the instrument and the refer- ence thermometer at several temperature throughout the range and adjusting the calibration parameters as necessary to reduce the errors to within acceptable limits. The stated accuracy of the instrument can be found in the specification table in Section 3.1. Because of the way the calibration parameters affect the temperature the simplest way to proceed is to measure the errors at 0°C, 100°C, 50°C, and –70°C and adjust R0, ALPHA, DELTA, and BETA at each point re- spectively. Be aware that you must use the appropriate fluid at each tempera- ture. Follow these steps:

•Set the set-point to 0°C and allow adequate time for the bath to reach this temperature and stabilize. Adjust the R0 calibration parameter (see Sec- tion 9.11.2) to make the bath temperature as measured with the standard thermometer match the set-point. The approximate ratio between a change in R0 and a change in temperature at 0°C is about 0.4 to 1. For ex- ample, if the bath temperature is high by 0.1°C at 0°C then decrease R0 by 0.04.

•Set the set-point to 100°C and allow adequate time for the bath to reach this temperature and stabilize. Adjust the ALPHA calibration parameter (see Section 9.11.3) to make the bath temperature as measured with the standard thermometer match the set-point. The approximate ratio between a change in ALPHA and a change in temperature at 100°C is about 0.00004 to 1. For example, if the bath temperature is high by 0.1°C at 100°C then decrease ALPHA by 0.000004.

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GE CTR 80 manual Calibration Procedure, Calibration Equipment
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CTR 80 specifications

The GE CTR 80 is an advanced technology system that has redefined efficiency and reliability in the realm of industrial control systems. Developed by General Electric, this system is tailored for various sectors, including manufacturing, energy production, and process management. Its design emphasizes modernity and innovation, making it a superior choice for companies aiming to optimize operations.

One of the main features of the GE CTR 80 is its robust control architecture. This architecture leverages a distributed control system (DCS) model, allowing for decentralized operation while maintaining central oversight. This structure enhances reliability by reducing the chances of system failures, and it enables quick local responses to changing operational conditions, ensuring minimal downtime.

The GE CTR 80 integrates cutting-edge technologies, such as advanced data analytics and machine learning algorithms. These technologies provide real-time insights into equipment performance and operational efficiency, facilitating predictive maintenance and proactive decision-making. The built-in analytics capabilities help operators identify trends and potential issues before they escalate into critical problems, significantly lowering operational risks.

The system is equipped with a user-friendly interface that promotes ease of use and navigation. Operators can quickly access various parameters and performance metrics through intuitive dashboards. Furthermore, customizable alerts and notifications ensure that operators receive timely information about any irregularities in system performance, enabling swift interventions when necessary.

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In summary, the GE CTR 80 is a powerful industrial control system that combines reliability, advanced analytics, user-friendly functionality, and robust security features. Its versatility and adaptability make it a preferred choice for modern industrial applications, driving operational excellence and enhancing productivity across various sectors.
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