Instruction Manual

IM-106-880, Rev 1.0 January 2007

OCX 8800

4.Connect the CO high gas to the CAL GAS HI COe inlet fitting. Install a shutoff valve and pressure regulator with gage in the CO high supply line.

5.Connect the CAL GAS outlet fitting of the electronics housing to the inlet port of the CAL GAS flow meter. Install an air line between the flow meter outlet port and the CAL GAS inlet fitting on the sensor housing.

Reference Air Set, Solenoids, and Blowback Option

The blowback system blows instrument air back through the blowback filter and out the sample tube of the transmitter. This removes built up dirt and particulate from the filter and sample line. The blowback option is normally used in systems that have a dirty process stream.

Installing an OCX 8800 with the blowback option requires the addition of air operated blowback valve, regulator and gage, and check valve.

Figure 2-7shows the piping arrangement for the OCX 8800 with the blowback and autocalibration options. Figure 2-8shows the piping arrangement for the OCX 8800 with the blowback option, but without autocalibration (without test gas solenoids).

When the reference air set, calibration gas solenoids, and blowback options are included with your transmitter, use the following procedure to install the pneumatic system components.

1.Connect the calibration gas sources according to the instructions in the previous paragraph “Reference Air Set and Solenoids Option”, steps 2 through 5.

2.Connect a clean, dry, instrument-quality supply of air (20.95% O2) to the 35/45 psig and 55 psig pressure regulators. The inlet to the 35/45 psig regulator accepts a 1/8" NPT fitting. The inlet to the 55 psig regulator accepts a 1/4" NPT fitting.

3.See the upper leg of the instrument air supply. Connect the output of the 35/45 psi regulator/filter to one port of the normally-closed air-operated solenoid valve, and to the inlet side of the dilution air flow meter.

4.Connect the dilution air flow meter output to the DILUTION AIR inlet fitting on the sensor housing.

5.Install an instrument air line between the open port of the normally-open air-operated solenoid valve and the tee fitting on the sensor housing.

6.Connect the output of the 55 psi regulator/filter to one port of the normally-open air-operated solenoid valve, and to the instrument air inlet on the back of the electronics housing.

7.Install an air line between the open port of the normally-closed air-operated solenoid valve and the check valve inlet fitting on the sensor housing.

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Emerson 8800 instruction manual Reference Air Set, Solenoids, and Blowback Option
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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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