Nautel NV30LT-N, Operation & Maintenance Manual

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NV30LT-N OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER
PAGE 3.2.138 VERSION 0.1 2015-03-01
LVPS Voltage
From the front panel UI, you can set the default LVPS voltage. The transmitter will set the LVPS voltage
to this value (between 35 and 53 V, in 1 V steps) during normal operation. Under fault conditions, if the
LVPS voltage requires an increase, the control system automatically increases the LVPS voltage, then
decreases it back to the set value when the fault condition clears. This setting should not require
adjustment.
To view the
LVPS Voltage
screen, select
System Settings -> HW Config -> LVPS Voltage
from the
Main Menu
(see Figure 3.2.121 ).
Figure 3.2.121: LVPS Voltage Screen
Use the up and down buttons to select a voltage between 35 and 53 V (in 1 V steps). The default setting
is 40 V. Press the accept (checkmark) button to save the change. If a reset is selected, it will occur
immediately. Press
X to abort the change and return to the previous menu.
Fan Speed
The transmitter control function automatically adjusts fan speed to ensure adequate cooling based on
all operating conditions. As a result this setting should not require adjustment. Increasing the fan speed
will allow for cooler transmitter operation, but will also decrease efficiency and increase acoustic noise
levels.
From the front panel UI, you can set the default speed of the transmitter’s cooling fans. The transmitter
will set the fan speed to a percentage (between 63 and 100%) of the maximum speed during normal
operation. Under fault conditions, the control system determines if an increase or decrease in fan speed
is required and automatically adjusts the fan speed.
To view the Fan Speed screen, select System Settings -> HW Config -> Fan Speed from the Main
Menu (see Figure 3.2.122 ).