User's Manual

Model 1150A DVOR
Rev. - November, 2008
This document contains proprietary information and such information may not be disclosed
to others for any purposes without written permission from SELEX Sistemi Integrati Inc.
6-7
l. U
se the PMDT to display RMS >> RMS Data >> Power Supply Data, AC Input Amps and verify the
reading is within 0.3 amps of DVM reading.
m. If not within 0.3 amps adjust 1A5A2 BCPS R56 so the RMS >> RMS Data >> Power Supply Data, AC
Input Amps is within 0.3 amps.
n. Turn off TX 1 and TX 2 AC and DC circuit breakers.
o. At the shelter circuit breaker panel turn off AC power for the VOR station.
p. Remove the DVM and reconnect the AC line wire to the AC Monitor (1A6) TB3 position 1.
q. Restore AC power to the VOR at the circuit breaker panel.
r. Restore the VOR to the NORMAL STATE.
6.4.1.3
Obstruction Light AC Voltage Alignment
a. Use a Digital Volt Meter (DVM) configured for AC voltage to measure across AC Monitor (1A6) TB1
position 1 and position 3.
NOTE
Terminal TB1-1 is normally connected to TB1-2 when a photo sensor is not used with the
obstruction light. When using a photo sensor the light opening must be covered with an
opaque object in order to force the obstruction light to turn on.
b. Use the PMDT to display RMS >> RMS Data >> Power Supply Data, OB Light volts and verify the
reading is within 2 VAC of DVM measurement.
c. If not within 2 VAC adjust 1A5A1 BCPS R29 so the RMS >> RMS Data >> Power Supply Data>> OB
Light volts is within 1 VAC of DVM measurement.
d. For single transmitter equipment skip to step h.
e. Turn off Transmitter 2 AC and DC breakers while leaving Transmitter 2 AC and DC breakers on.
f. Use the PMDT to display RMS >> RMS Data >> Power Supply Data, OB Light volts and verify the
reading is within 2 VAC of DVM measurement.
g. If not within 2 VAC adjust 1A5A2 BCPS R29 so the RMS>>RMS Data>> Power Supply Data>> OB
Light volts is within 2 VAC of DVM measurement.
h. Restore the VOR to the NORMAL STATE.
6.4.1.4
Obstruction Light AC Current Alignment
a. Turn off AC and DC circuit breakers.
b. At the shelter circuit breaker panel turn off AC power for the VOR station including obstruction lights.
c. Disconnect the wire from the AC source to AC Monitor (1A6) TB1 position 2 (LINE).
d. Connect a Digital Volt Meter (DVM) in line with the wire from AC Monitor (1A6) TB1 position 2 (OB
LITE, LINE). Set the DVM to measure AC current using a 10A scale.
NOTE
Terminal TB1-1 is normally connected to TB1-2 when a photo sensor is not used with the
obstruction light. When using a photo sensor the light opening must be covered with an
opaque object in order to force the obstruction light to turn on.
e. Disconnect any equipment connected to the front panel AC convenience outlet on the 1A7 Status Panel.
f. Connect a Digital Volt Meter (DVM) in line with the wire from AC Monitor (1A6) TB1 position 2 (OB
LITE, LINE). Set the DVM to measure AC current using a 10A scale.
g. Restore AC power to the VOR and obstruction light at the circuit breaker panel.
h. Use the PMDT to display RMS >> RMS Data >> Power Supply Data, OB Light Amps and verify the
reading is within 0.3 amps of DVM reading.
i. If not within 0.3 amps adjust 1A5A1 BCPS R44 so the RMS >> RMS Data >> Power Supply Data, OB
Light Amps is within 0.3 amps.
j. For single equipment skip to step n.
k. Turn off Transmitter 1 AC and DC breakers leaving Transmitter 2 circuit breakers on.