Emerson 460 installation manual Alarm Retest Delay SS3

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Alarm Retest Delay (SS3)

SS3 selects the alarm retest delay, the setting in which an alarm is latched and retested every hour.

OFF = Non-latching (default) ON = Latching-retest each hour

The factory default is OFF=Non-latching. If SS3=ON and a leak is detected, the alarm condition is latched, the sensor goes into a “sleep” mode and power to the leak detection cable is discontinued. After one hour, the sensor will automatically retest if the leak is still present. If the leak has cleared itself, the sensor deactivates the alarm, resets itself and resumes normal operation; if the leak is still present, the alarm condition remains activated and the sensor goes to “sleep” and retests in another hour. This procedure will repeat indefinitely until the leak is cleared or until the alarm is manually reset.

A manual reset can be initiated at any time. If the leak condition has not yet cleared, the sensor re-alarms after the selected leak detect fil- ter delay; if the leak has cleared, the sensor deactivates the alarm and resets itself. SS3 is disabled if SS2=ON.

The factory default settings of SS2=OFF and SS3=OFF place the sensor in a non-latching, continuous retest mode. The sensor does not go to “sleep” after detecting a leak—instead, it continually checks to determine whether the leak condition has cleared itself. Alarms auto- matically reset when the leak condition clears. Initiating a manual reset will cause the sensor to trigger the alarm again after the selected leak detect filter delay. The leak detect cable remains powered at all times.

SS4 is not used.

SS1

SS2

SS3

SS4

MODE

 

 

 

 

 

OFF

OFF

OFF

(not

Non-latching, 10-second filter delay

used)

(factory default)

 

 

 

ON

OFF

OFF

(not

Non-latching, 2-minute filter delay

used)

 

 

 

 

OFF

ON

—

(not

Latching, 10-second filter delay

used)

 

 

 

 

ON

ON

—

(not

Latching, 2-minute filter delay

used)

 

 

 

 

OFF

OFF

ON

(not

1-hour latch/retest, 10-second filter delay

used)

 

 

 

 

ON

OFF

ON

(not

1-hour latch/retest, 2-minute filter delay

used)

 

 

 

 

6

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Contents Liebert Liqui-tect460 Page Table of Contents Page Exterior Dimensions and Mounting Details IntroductionPlacement on Subfloor Under Cooling Support Equipment Power Wiring LT460 is rated for 24 VAC, 50/60 Hz and 0.12 ampWiring to Auxiliary Alarm Panels To 5 tonConfiguration Switch Settings Leak Detect Filter DelaySS1Alarm Retest Delay SS3 LED Operation LT460Installation of Leak Detection System Cable Installation of hold-down clips in pairs Leak Detection Kit Installation Scenarios Scenarios Upflow Downflow UnitPage Locations

460 specifications

The Emerson 460 is a powerful and versatile solution designed to address the needs of modern control systems across various industries. Renowned for its robust performance, this system integrates advanced technologies that enable seamless operations, reliability, and efficiency in process management.

One of the main features of the Emerson 460 is its enhanced processing capability. Equipped with a high-performance processor, it supports complex control algorithms, ensuring precise and accurate results that are essential in critical applications. This advanced processing power allows for the handling of large data sets and real-time analysis, enabling operators to make informed decisions swiftly.

Another highlight of the Emerson 460 is its extensive connectivity options. It supports a range of communication protocols, facilitating integration with existing systems and devices. This ensures that the Emerson 460 can interact with various components in a plant or facility, enabling streamlined operations and improved data sharing. The system is compatible with industry standards such as Modbus, EtherNet/IP, and Profibus, further enhancing its versatility.

In terms of user experience, the Emerson 460 comes with an intuitive interface that simplifies navigation and operation. The user-friendly design allows operators to access critical data and control operations with ease, reducing the learning curve and minimizing the chances of human error. The interface can be customized to meet the specific needs of a facility, providing tailored solutions that enhance operational efficiency.

Additionally, the Emerson 460 is built with advanced security features, ensuring that sensitive data remains protected. With cybersecurity threats becoming increasingly prevalent, this system incorporates robust encryption methods and user access controls, safeguarding against unauthorized access and potential data breaches.

Moreover, the Emerson 460 is designed for high reliability and durability, capable of operating effectively in harsh environments. Its rugged construction and resistance to extreme temperatures, humidity, and dust make it suitable for various industrial applications, including oil and gas, pharmaceuticals, and food and beverage production.

Lastly, the Emerson 460 supports predictive maintenance, utilizing advanced analytics and machine learning algorithms to anticipate potential issues before they result in costly downtime. This proactive approach to maintenance ensures continuous operations and reduces operational costs, benefiting businesses in the long term.

In conclusion, the Emerson 460 stands out as a state-of-the-art control system that combines power, flexibility, and security, making it an ideal choice for industries looking to optimize their operations and enhance productivity. With its comprehensive features and cutting-edge technologies, it truly meets the demands of modern industrial environments.
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