Instruction Manual

IM-106-880, Rev 1.0 January 2007

OCX 8800

Section 5

Calibration

OVERVIEW

FULLY AUTOMATIC CALIBRATION

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-1 Fully Automatic Calibration . . . . . . . . . . . . . . . . . . . . . . . . page 5-1 Operator - Initiated Autocalibration . . . . . . . . . . . . . . . . . page 5-3 Manual Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-3

During a calibration, two calibration gases with known O2 concentrations and one calibration gas with a known COe concentration are applied to the OCX 8800. Slope and constant values are calculated to determine if the OCX 8800 is correctly measuring net concentrations of O2 and combustibles in the industrial process.

Before calibrating the OCX 8800, verify that the calibration gas parameters are correct by setting the test gas values used when calibrating the unit. Refer to Section 3, Configuration and Startup.

There are three calibration methods available to the OCX 8800; automatic, operator-initiated automatic, and manual. Calibration commands and menus can be accessed by HART/AMS.

If the OCX 8800 is equipped with calibration solenoids, the unit can be programmed to automatically calibrate without any operator action. Refer to the following paragraphs for using HART/AMS to set up the OCX 8800 for fully automatic calibration.

Autocalibration Setup using HART

NOTE

Automatic calibration is only available on units equipped with calibration solenoids.

Use the following procedure to specify a time interval (in hours) at which the OCX 8800 will automatically calibrate.

1.From the DEVICE SETUP screen, select DETAILED SETUP.

2.From the DETAILED SETUP screen, select O2 CALIB PARAMS or

COE CALIB PARAMS.

3.If the unit is equipped with calibration solenoids and timed automatic calibrations are desired, select Solenoids, then select Yes. Selct No to disable the calibration solenoids.

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Emerson 8800 instruction manual Section Calibration, Overview Fully Automatic Calibration, Autocalibration Setup using Hart
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8800 specifications

The Emerson 8800, a pivotal instrument in industrial automation, stands out for its robust features and cutting-edge technologies. Designed to enhance process efficiency and reliability, this device is integral to numerous industries, including oil and gas, chemical, and power generation.

One of the standout features of the Emerson 8800 is its advanced control capabilities. It incorporates a highly flexible control architecture that supports a wide variety of control schemes. This adaptability allows engineers to implement customized solutions tailored to specific process requirements. Additionally, the 8800 series includes integrated predictive diagnostics that continually monitor system performance, alerting operators to potential issues before they escalate into serious problems.

The technology powering the Emerson 8800 is equally impressive. Equipped with state-of-the-art microprocessors, it can handle complex calculations and data processing with remarkable speed and accuracy. The device supports multiple communication protocols, including Foundation Fieldbus, HART, and Modbus. This flexibility ensures seamless integration with existing systems, thereby enhancing data sharing and communication between devices.

Moreover, the Emerson 8800 features a user-friendly interface that simplifies operation and monitoring. The intuitive display allows operators to easily navigate through various settings and real-time data, promoting better decision-making and faster response times. This ergonomic design enhances usability in high-pressure environments, ultimately contributing to improved safety and operational efficiency.

Another key characteristic of the Emerson 8800 is its durability and reliability. Built to withstand the rigors of industrial environments, the device boasts a robust enclosure, ensuring protection against dust, moisture, and extreme temperatures. This reliability minimizes the risk of downtime, making it a cost-effective choice for industries where uptime is critical.

In summary, the Emerson 8800 emerges as a powerhouse in the realm of industrial automation. With its advanced control systems, diverse communication capabilities, user-friendly interface, and rugged design, it embodies efficiency and reliability. As industries continue to evolve, the Emerson 8800 stands ready to meet the challenges of modern automation, driving innovation and productivity in complex environments.
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