Instruction Manual

IM-106-880, Rev 1.0 January 2007

OCX 8800

ALARM RELAY EVENTS The OCX 8800 contains an alarm relay that can be configured to activate on one of twelve different groups of events. These event groups, and the conditions that trigger them, are listed in Table 7-2, Alarm Relay Event Groups.

Table 7-2. Alarm Relay

Event Groups

Alarm Relay Event

Alarms/Conditions

In Calibration

Calibration in progress

 

 

 

Oxygen sensor heater temperature low (O2 Temp Low)

O2 Temperature Error

Oxygen sensor heater temperature high (O2 Temp Hi,

O2 Temp Very Hi)

 

RTD excitation current error (Ref Curr Err)

 

Oxygen sensor heater could not reach final temperature

 

(O2 HTR Failure)

Heater Failure

Combustibles sensor heater could not reach final temperature

(COe Htr Failure)

 

 

Sample Block sensor heater could not reach final temperature

 

(SB Htr Failure)

 

 

O2 Sensor Error

Oxygen sensor resistance high (O2 Sensor R High)

Oxygen sensor disconnected (O2 Sensor Open)

Calibration Failure

Calibration failed (Cal Failed)

 

 

Calibration Warning

Calibration warning (Cal Warning)

Board Temperature High

Electronics temperature maximum exceeded (Board Temp Hi)

 

 

 

Any non-recoverable or heater relay off alarm (O2 Temp Hi,

 

O2 Temp Very Hi, COe Temp Hi, COE Temp Very Hi,

 

SB Temp Hi, SB Temp Very Hi, O2 Htr Ramp Rate,

 

COe Htr Rmp Rate, SB Htr Ramp Rate, O2 TC Shorted,

Unit Failure

O2 TC Reversed, COe TC Shorted, COe TC Reversed,

 

SB TC Shorted, SB TC Reversed, ADC Failure,

 

ADC Ref Error, Board Temp Hi, EEPRM Chksm Fail,

 

Line Freq Error, Line Voltage Low, Line Voltage Hi,

 

Htr Relay Failed, Out Brd Fail)

 

Sample block heater temperature low (SB Temp Low)

Sample Block

Sample block heater temperature high (SB Temp Hi,

Temperature Error

SB Temp Very Hi)

 

RTD excitation current error (Ref Curr Err)

 

 

 

Combustibles sensor heater temperature low (COe Temp Low)

COe Sensor

Combustibles sensor heater temperature high (COe Temp Hi,

Temperature Error

COe Temp Very Hi)

 

RTD excitation current error (Ref Curr Err)

 

AC power line frequency out of usable range (Line Freq Err)

Power Input Error

AC power line voltage below minimum (Line Voltage Low)

 

AC power line voltage above maximum (Line Voltage Hi)

 

 

All Alarms

Any alarm

 

 

7-11

Page 100 Page 102
Page 101
Image 101
Emerson 8800 instruction manual Alarm Relay Event Alarms/Conditions
Page 100 Page 102

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.
Top Page Image Contents