Temperature and Humidity Sensors shall be capable of being calibrated using the front monitor panel con- trols to coordinate with other temperature and humidity sensors in the room.

Predictive Humidity Control

The microprocessor shall calculate the moisture con- tent in the room and prevent unnecessary humidifi- cation and dehumidification cycles by responding to changes in dew point temperature.

Compressor Short-Cycle Control

The control system shall include a program to pre- vent compressor short-cycling.

System Auto-Restart

For start-up after power failure, the system shall provide automatic restart with a programmable (up to 9.9 minutes in 6-second increments) time delay. Programming can be performed either at the unit or from the central site monitoring system.

Sequential Load Activation

During start-up, or after power failure, the micropro- cessor shall sequence operational load activation to minimize inrush current. Systems allowing multiple loads to start simultaneously are unacceptable.

Chilled Water/Hot Water/Econ-O-Coil Flush Cycles

Chilled water, hot water, and Econ-O-Cool coils (if unit is so equipped) shall be automatically flushed to prevent the buildup of contaminants. Systems with- out this feature shall include the necessary devices to bypass fluid into the coil on a programmed basis.

Front Monitor Display Panel

The microprocessor shall provide a front monitor LCD backlit display panel with 4 rows of 20 charac- ters with adjustable contrast. This display (along with five front mounted control keys) shall be the only operator interface required to obtain all avail- able system information such as room conditions, operational status, alarms, control and alarm set- points, and all user selections including alarm delays, sensor calibration, DIP switch selections, and diagnostics. All indicators shall be in language form. No symbols or codes shall be acceptable.

Alarms

The microprocessor shall activate an audible and visual alarm in event of any of the following conditions:

High Temperature

Low Temperature High Humidity Low Humidity Short Cycle

Compressor Overload (Optional)

Main Fan Overload (Optional) Humidifier Problem

High Head Pressure Change Filter Loss of Air Flow Low Suction Pressure Loss of Power Custom Alarm (#1 to #4)

Custom alarms are four customer accessible alarm inputs to be indicated on the front panel. Custom alarms can be identified with prepared (pro- grammed) alarm labels for the following frequently used inputs:

Water Under Floor Smoke Detected Standby GC Pump On Loss of Water Flow Standby Unit On

User customized text can be entered for two of the four custom alarms. Each alarm (unit and custom) can be separately enabled or disabled, selected to activate the common alarm, and programmed for a time delay of 0 to 255 seconds.

Audible Alarm

The audible alarm shall annunciate any alarm that is enabled by the operator.

Common Alarm

A programmable common alarm shall be provided to interface user selected alarms with a remote alarm device.

Remote Monitoring

All alarms shall be communicated to the Liebert monitoring system with the following information: date and time of occurrence, unit number, and present temperature and humidity.

Analog Inputs

The system shall include four customer accessible analog inputs for sensors provided by others. The analog inputs shall accept a 4 to 20 mA signal. The user shall be able to change the input to 0 to 5 VDC or 0 to 10 VDC if desired. The gains for each analog input shall be programmable from the front panel. The analog inputs shall be able to be monitored from the front panel.

Diagnostics

The control system and electronic circuitry shall be provided with self-diagnostics to aid in troubleshoot- ing. The microcontroller board shall be diagnosed and reported as pass/not pass. Control inputs shall be indicated as on or off at the front monitor panel. Control outputs shall be able to be turned on or off from the front monitor panel without using jumpers or a service terminal. Each control output shall be indicated by an LED on a circuit board.

Data Collection

The control system shall maintain accumulative operating hours of compressor, reheat, humidifier, fan motor, and Econ-O-Coil. The ten most recent alarms shall also be retained.

Communications

The microprocessor shall be compatible with all Lie- bert remote monitoring and control devices.

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PRODUCT

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Emerson 3000 Predictive Humidity Control, Compressor Short-Cycle Control, System Auto-Restart, Sequential Load Activation
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3000 specifications

The Emerson 3000 is a cutting-edge control system designed to enhance the efficiency, reliability, and precision of industrial operations. Employed across various sectors such as oil and gas, pharmaceutical, food and beverage, and power generation, the Emerson 3000 has gained recognition for its robustness and versatility.

One of the main features of the Emerson 3000 is its advanced process control capability. With integrated control algorithms, it can optimize complex processes in real-time, resulting in significant improvements in production rates and reduced operational costs. The system's predictive analytics capabilities enable operators to anticipate equipment failures and maintenance needs, allowing for proactive management and minimizing downtime.

The Emerson 3000 features a modular architecture, providing flexibility for scaling and customization. Operators can easily tailor the system to fit specific application needs, whether it requires additional control loops or integration with other systems. This adaptability is particularly beneficial for facilities planning for future expansions or modifications.

Another technology highlight of the Emerson 3000 is its seamless integration with the latest Internet of Things (IoT) advancements. The system is designed to communicate effectively with a variety of smart devices and sensors, harnessing data to create insightful analytics that drive operational excellence. This connectivity empowers businesses to leverage big data for improved decision-making and increased agility.

Additionally, the Emerson 3000 incorporates state-of-the-art cybersecurity measures to safeguard critical data and operations. With built-in security protocols and regular updates, the system protects against emerging cyber threats, ensuring the integrity of the control network.

User experience is also a focal point of the Emerson 3000. The intuitive graphical user interface presents complex data in a user-friendly format, making it easier for operators to monitor system performance and respond to alerts quickly. This ease of use contributes to enhanced safety and operational efficiency.

In summary, the Emerson 3000 represents a fusion of advanced process control, modular design, IoT connectivity, robust cybersecurity, and user-centric interface, making it an ideal choice for industries seeking to enhance their operational performance while adapting to ever-evolving technological landscapes.
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