MatrixMonitor™ IOM - Rev 4 - 4/11/2013
Page 41
Motherboard Data
This screen displays the environmental conditions of the control unit. The information displayed is the
temperature of the control enclosure, the barometric pressure, and the DC voltage and current supplied
to the FSB communication network.
From the “
Main Menu
”, scroll down to highlight menu
selection “
12. Mother Board data
” and press the
(enter) key. The following will display on the screen:
Mother Board Data
110 deg F, 14.7psia
FSB 12.1V, 3.2A
Any Key to Exit
The second line of the display shows the
temperature of the motherboard inside of the
control unit and the atmospheric pressure. This
value of atmospheric pressure is used to calculate
the density of the air entering the array which is
used to calculate the actual fan airflow from the
piezometric pressure depression measurement. The
second line displays information about the power
supplied to the FSB sensor network. The voltage and the current supplied to the FSB network is
measured on the motherboard and displayed here.
It is normal for the control unit temperature to be 10: to 20: F warmer than the ambient temperature.
The FSB voltage should be above 11.9V and lower than 12.4V. The FSB current should be less than 3.5
amps.
Pressing any key will return control to the main menu.
Lubrication Status
This screen displays the state of the grease life timer, predicts the hours left until the next required
lubrication, and displays the date of the last lubrication. For a complete description of the lubrication
monitoring system built into MatrixMonitor™ see the “Lubrication Monitoring” section below in this
document.
From the “Main Menu” scroll down and highlight menu selection “
13. Grease Life Data
” and press the
(enter) key. If there is only one fan array installed and the grease timer has been started the following
screen will display:
Supply : 78 Life
Last Grease-11/22/11
Hours To Next 1553
Any Key to EXIT
The text before the colon in the first line is the name assigned to array 1. The number after the colon is
the percent of life left before the next required bearing grease maintenance. The second line displays