Getting Started With the Web Interface

5.4.3View Power Strip Graphs

Power strip data may be viewed in graphic format, similar to those of sensor data. To access the Power Strip Graphs window (see 5.4.1 - Control Receptacles for more details):

Click on the Power tab at the top of the Web interface.

Select a port from the left side of the window by clicking on the name of the port.

In the right side of the Power Data window, click on one of the blue links—Power, Voltage, Cur- rent or Temperature.

On the right side of the window, click on the Graph button. The right side of the window shows a graph of current sensor data, upper and lower limits, as in the following example.

POWER STRIP

DATA GRAPH

Temperature sensor example

All button Limit button

Legend

 

 

 

Graph of

 

 

 

upper limits

 

 

 

Graph of

Refresh

 

sensor data

 

 

button

 

Graph of

 

 

 

 

 

 

lower limits

 

 

 

Refresh button

The line graph shows the selected sensor’s readings (black) chronologically from left to right—the most current reading is on the far right—as well as Warning (yellow) and Critical (red) limits.

Use the All or Limit button to change the scale of the y-axis on the graph, as follows:

Click Limit to use the High and Low Critical values to determine the upper and lower bound- aries of the graph. In the example above, the y-axis extends from 60° to 85°, which are the Low Critical and High Critical values for the Port 1 Temperature Sensor.

Click All to include the sensor data readings to determine the upper and lower limits of the graph. In the example above, if a data reading were 95°, the y-axis scale would extend from 60° to 95° to include that reading. (If all sensor data readings fall within the High and Low Critical limits, the All and Limit buttons display the same scale extending from the Low Crit- ical value to the High Critical value.)

Use click-and-drag to zoom in or out:

To zoom in on an area of the graph, click and drag the mouse downward to draw a box around the area. The maximum zoom level shows 10 units on the y-axis (degrees, for example) and six data samples on the x-axis.

To zoom out, click and drag the mouse in an upward direction. (Or click on All or Limit to restore the graph to full view.)

Click the Refresh button to update the graph with the most recent sensor reading. The sensor is sampled at regular inter- vals. See 5.7.3 - Data Presentation to change this interval.

Click Close to exit the graph window and return to the Power Configuration window.

ZOOM IN FEATURE - Temperature sensor example

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Liebert EM manual View Power Strip Graphs, Zoom in Feature Temperature sensor example

EM specifications

The Liebert EM is a state-of-the-art, modular and scalable cooling solution designed to meet the needs of today's data centers and IT environments. This innovative unit offers unmatched precision and flexibility, making it ideal for facilities that require meticulous temperature control and energy efficiency.

One of the main features of the Liebert EM is its modular design, allowing for easy expansion and customization based on the specific requirements of a facility. This scalability ensures that organizations can efficiently adapt to changing cooling demands without the need for significant infrastructure changes. The system can be configured in various capacities, making it suitable for spaces of different sizes and cooling needs.

Incorporating advanced technologies, the Liebert EM utilizes inverter-driven compressors, allowing for variable refrigeration capacity. This feature optimizes energy consumption, reducing operational costs while maintaining precise temperature control. The unit is designed with built-in smart controls that enable real-time monitoring and adjustments, ensuring enhanced performance and efficiency across the entire cooling system.

The Liebert EM also comes equipped with EC (Electronically Commutated) fans, which contribute to its energy efficiency by adjusting their speed according to the cooling load. This not only ensures adequate airflow but also minimizes energy waste, leading to lower overall operating costs.

Furthermore, the system features intelligent connectivity options that facilitate integration with existing building management systems. This capability allows for centralized monitoring and control, empowering facility managers to maintain optimal conditions and respond quickly to any fluctuations in temperature or humidity.

Safety and reliability are also paramount in the design of the Liebert EM. The unit includes comprehensive backup systems and redundancy features to ensure continuous operation even in the event of a component failure. This reliability is crucial for critical applications where downtime can result in significant losses.

In summary, the Liebert EM stands out as a versatile and high-performance cooling solution, equipped with advanced technologies that offer scalability, energy efficiency, and precise temperature control. Its modular design, coupled with intelligent control options, makes it an essential component for modern data centers looking to optimize their cooling infrastructure while ensuring reliability and reducing operational costs.