Page 4-14 Vector-LP Radio Beacon Transmitter Technical Instruction Manual
Issue 1.1 Section 4 Testing and Adjustment
4.3.6.11 CALIBRATING BATTERY
VOLTAGE, BATTERY CURRENT AND
CHARGER CURRENT (Optional)
NOTE
This procedure applies to transmitters that
use a dc power source and the battery
boost PWB (A16).
(a) Press RF Off.
(b) Open the dc breaker and remove ac
power from the transmitter. Disconnect
the positive lead of the battery from the
terminal block (TB1) on the battery
boost PWB (A16). Reconnect the
positive lead of the battery to TB1-3 on
the battery boost PWB.
(c) Connect a link, using 14 AWG wire,
between TB1-4 and TB1-1 on the
battery boost PWB. Close the dc
breaker.
(d) Measure and record the dc voltage
between TB1-1 and TB1-2 on the
battery boost PWB.
(e) In the Calibrate Meters menu (see
3.6.12 and 3.6.12.1) scroll through the
parameters until Battery Voltage is
highlighted. Press Modify.
(f) Adjust the value to match the voltage
measured in step (a). Press Done.
NOTE
When you exit the Calibrate Meters menu a
message is displayed indicating that you
have made changes. You will be prompted
to save the changes to EEPROM so that
they can be restored in the event of a
power failure. Press Yes each time this
prompt is displayed during the setup
procedure.
(g) In the Power Source Select menu,
change the transmitter’s Requested
Power Source to DC (see 3.6.9).
(h) Press RF On and increase the RF
output to rated power.
(i) Use a clip-on dc current meter to
measure the current between the
battery and TB1-3 of the battery boost
PWB.
(j) In the Calibrate Meters menu scroll
through the parameters until Battery
Current is highlighted. Press Modify.
(k) Adjust the value to match the current
measured in step (i). Press Done.
(l) In the Calibrate Meters menu scroll
through the parameters until Charger
Current is highlighted. Press Modify.
(m) Adjust the value to match the current
measured in step (i). Press Done.
(n) Press RF Off.
(o) Open the dc breaker. Remove the link,
between TB1-4 and TB1-1 on the
battery boost PWB. Disconnect the
positive lead of the battery from TB1-3
on the battery boost PWB and
reconnect it to TB1-1.
(p) Close the dc breaker and reapply ac
power to the transmitter.
(q) In the Power Source Select menu,
change the transmitter’s Requested
Power Source to AC (see 3.6.9).
4.3.6.12 SETTING DISPLAY CONTRAST
Set the contrast of the diagnostic display’s
GUI as follows:
(a) In the Set Thresholds menu (see
3.6.12 and 3.6.12.2), scroll to the LCD
Display Contrast threshold. Press
Modify.
(b) Adjust the contrast to the desired level.
Press Done.
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