TM 11-6625-444-14-2
DC/DC RATIO
FUNCTION
(6) Change the dc voltage calibrator out-
put to 3.0000 volts dc.
N/A
RANGE
(7) Repeat step 3 and note that the volt-
AUTO
Pushed in
meter digital display is +100.000% 6 counts.
Rear (In)
INPUT FRONT/REAR
(8) Press the AUTO pushbutton switch to
(2) Apply a + 10.000 Vdc signal to the rear
the "in" position and observe that the voltmeter
digital display is +100.000% 6 counts. Repeat
panel EXTERNAL REFERENCE V and LO termin-
als from the dc voltage calibrator.
step 3 if necessary.
(3) Apply each of the dc voltages Iisted in
(9) Disconnect tfle dc voltage calibrator
from the voltmeter.
INPUT terminals and observe that the voltmeter
automatically transfers to the range indicated.
(4) Repeat step (3) with negative input
e. Dc/dc Ratio Autoranging Checks
voltages applied to the voltmeter rear panel HI
and LO INPUT terminals. The readout must be
(1) Connect the equipment as shown in
the same as for positive inputs, except the po-
follows:
