Keysight E8402A, E8404A C-Size Mainframes User and Service Guide 31Using the Enhanced Monitor Using the Enhanced Monitor-- In the Variable mode, if any VXI module exhaust temperatureapproaches a user-defined limit, fan speed increases.-- Otherwise, fan speeds operate at the lowest possible speedto maintain user-specified cooling level.– Time Monitor records:-- Total hours of operation-- Time-on since power on, last test, last calibration, lasthistory reset.-- Time remaining until the next maintenance. This time can beset and queried by the user. A warning is generated when thetimer reaches 0. Note: this is disabled as shipped fromKeysight.Using the DisplayThe Enhanced Monitor display graphically portrays status informationabout the mainframe. This includes strip charts and histograms of fanspeed, slot and ambient temperature, and power supply voltage, andpower.The first time the mainframe is powered on, the display prompts youto select a language; either English, German (Deutsch), French(Français), or Spanish (Español). Use the arrow keys just to the right ofthe display to highlight a language then press the Enter key. Alldisplay and help screens will appear in the selected language.Use the up/down arrow keys to highlight a display item, then press theEnter key to select that item. In the upper right hand corner of alldisplays (except the language selection display) is an arrow; selectingthis arrow and pressing the Enter key moves you back to the previousdisplay. Some displays also have a question mark (?) in the upperright corner. Selecting the question mark brings up a help screendescribing the display. Figure 2 shows three typical displays and ahelp screen.
