Liebert EM User Manual

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 10% to 90%, which are the 

Low Critical and High Critical values for Humidity Sensor 2.

• 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 

10% 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 

or percentage points, 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 intervals. See 5.7.3 - Data 

Presentation to change this interval.

• Click  the  Close button to exit the Sensor 

Graphs window and return to the Sensor Data 

window.